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EP1089863A1 - Composite consisting of a coated polycarbonate and a polymer - Google Patents

Composite consisting of a coated polycarbonate and a polymer

Info

Publication number
EP1089863A1
EP1089863A1 EP99920831A EP99920831A EP1089863A1 EP 1089863 A1 EP1089863 A1 EP 1089863A1 EP 99920831 A EP99920831 A EP 99920831A EP 99920831 A EP99920831 A EP 99920831A EP 1089863 A1 EP1089863 A1 EP 1089863A1
Authority
EP
European Patent Office
Prior art keywords
composite according
polycarbonate
polymer
molded body
edge area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP99920831A
Other languages
German (de)
French (fr)
Inventor
Peter Bier
Peter Capellen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7867756&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1089863(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP1089863A1 publication Critical patent/EP1089863A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B29C2045/14327—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/778—Windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/778—Windows
    • B29L2031/7782—Glazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24653—Differential nonplanarity at margin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate

Definitions

  • the present invention relates to a positive connection between a molded body made of polycarbonate, the surface of which is coated and which has geometrical features promoting adhesion in the edge area and a polymer, as well as the production of the said positive connection and the use of the said positive connection for the production of products and those made from positive composite manufactured products
  • Polycarbonate which can be used as a glass replacement, must be coated so that it is scratch-resistant and also resistant to other environmental influences.As a rule, however, coating the polycarbonate in this way means that the polycarbonate does not form any chemical or physical bond with other polymers that a form-fitting, firmly adhering bond between the coated polycarbonate and another polymer without the aid of connecting agents, such as
  • the object of the present invention is therefore to provide a composite between a molded body made of polycarbonate, the surface of which is coated, and a polymer which is form-fitting and firmly adhering without the need for connecting means, such as screws, and a method to provide for the manufacture of the composite according to the invention and to provide products which are produced from the composite according to the invention
  • the object according to the invention is achieved by a form-fitting connection between a molded body made of polycarbonate, the surface of which is coated and which has geometrical peculiarities in the edge area and a polymer, obtainable by extrusion-coating or encapsulation of the molded body in the edge region with the polymer, and by a process for producing the composite according to the invention by encapsulation or encapsulation of the molded body made of polycarbonate in the edge region and by using the aforementioned interlocking composite to produce products and by the products available in this way.
  • the composite according to the invention has the advantage that the connection between the coated polycarbonate molded body and the polymer is form-fitting, although the molded body and the polymer enter into neither a chemical nor a physical bond. With physical bonding e.g. a particularly strong adhesion is meant.
  • polycarbonates are both homopolycarbonates and copolycarbonates.
  • the polycarbonates can be linear or branched.
  • Preferred is the homopolycarbonate based on bisphenol A (2,2-bis (4-hydroxyphenyl) propane) or the copolycarbonate based on bisphenol A and up to 60 mol%, based on the molar sum of bisphenols, l , l-bis (4-hydroxyphenyl) - 3,3,5-trimethylcyclohexane used.
  • the homopolycarbonate based on bisphenol A is particularly preferably used.
  • polycarbonates are also aromatic polycarbonates in which up to 80 mol%, preferably from 20 mol% to 50 mol%, of the carbonate groups have been replaced by aromatic dicarboxylic acid ester groups.
  • Such polycarbonates which are both acid residues of carbonic acid as well
  • aromatic polyester carbonates Containing acid residues of aromatic dicarboxylic acids built into the molecular chain are referred to as aromatic polyester carbonates. They should be subsumed under the generic term of polycarbonates.
  • Polycarbonates can be produced by known processes. Examples include Schnell, Chemistry and Physics of Polycarbonates, Polymer Reviews, Volume 9, Interscience Publishers, New York, London, Sydney 1964, and on DC Prevorsek, BT Debona and Y. Kesten, Corporate Research Center, Allied Chemical Corporation, Morristown, New Jersey 07960, "Synthesis of Poly (estercarbonate) copolymers” in Journal of Polymer Science, Polymer Chemistry Edition, Vol. 19 , 75-90 (1980), as well as on D. Freitag, U. Grigo, PR Müller, N. Nouvertne, BAYER AG, "Polycarbonates” in Encyclopedia of Polymer Science and Engineering, Volume 11, Second Edition, 1988, pages 648-718 and finally on U. Grigo, K. Kircher and PR Müller, “Polycarbonate” in Becker, Braun, Kunststoff-Handbuch, Volume 3/1, Polycarbonate, Polyacetale, Polyester, Celluloseester, Carl Hanser Verlag Kunststoff, Vienna, 1992 , Pages 117-299.
  • the polycarbonates according to the invention have average molecular weights M w of 12,000 to 400,000 g / mol (determined by measuring the relative viscosity of a solution of methylene chloride which has a concentration of 0.5 g of polycarbonate per 100 ml of methylene chloride at 25 ° C.), preferably from 18,000 to 80,000 g / mol and in particular from 22,000 to 60,000 g / mol
  • the polycarbonates according to the invention can contain additives
  • Coated in the sense of the invention means that the molded body made of polycarbonate is provided with a scratch-resistant, chemical-resistant and optionally UV-absorbing surface coating, which can additionally have hydrophilic or hydrophobic properties.
  • a scratch-resistant, chemical-resistant and optionally UV-absorbing surface coating which can additionally have hydrophilic or hydrophobic properties.
  • the bond between the molded body made of polycarbonate and the polymer is achieved in that the molded body with a Polymers overmolded or overmolded.
  • Polymers in the sense of the invention are all thermoplastics, but also rubber-like polymers (rubbers), such as are used, for example, as a sealing compound, or also thermosetting polymers. Blends of the polymers mentioned can also be used.
  • the composite according to the invention is preferably produced by extrusion coating with thermoplastics.
  • thermoplastics are polystyrene, polyurethane, polyamide, polyester, polyacetal, polyacrylate, polycarbonate, polyethylene, polypropylene, polyvinyl chloride, polystyrene acrylonitrile, and copolymers based on the polymers mentioned and blends of the polymers mentioned or copolymers with one another or with other polymers.
  • Rubbery polymers in the sense of the invention are e.g. Polyisoprene, polychloroprene,
  • Styrene-butadiene rubber rubber-like ABS polymers, copolymers of ethylene and one or more of the following compounds: vinyl acetate, acrylic acid ester, methacrylic acid ester or propylene.
  • Casting resins such as e.g. Unsaturated polyesters, epoxy resin compositions, acrylates, formaldehyde resins or polyurethanes can be used.
  • thermoplastics, rubbers and thermosets which can be used according to the invention are e.g. listed in Saechtling, plastic paperback, edition 26, Carl Hanser Verlag,
  • the polymers according to the invention can contain additives.
  • the composite according to the invention is preferably produced by extrusion coating with thermoplastics.
  • the molded body made of polycarbonate is preferably a plate or a film.
  • the plate can either be flat or curved.
  • curved means that the plate is curved so that it has a specific shape, as is required, for example, in automobile construction in the form of the front or rear window or in house construction as a roof window.
  • the plate preferably has a thickness of 1 mm to 3 cm, particularly preferably 3 mm to 10 mm.
  • the film preferably has a thickness of less than 1 mm, particularly preferably 0.25 to 1.0 mm
  • the shaped body has a rounded surface, as occurs in particular with optical lenses
  • the molded body as a geometric feature that promotes adhesion, has one or more of the features of cutouts or round or oval bores or indentations or bulges or cutouts or half-punchings or corrugations which are enclosed by the polymer during the encapsulation or casting, so that a positive connection between the molded body and the polymer results
  • a preferred embodiment of the invention is a form-fitting composite of polycarbonate based on bisphenol A, the surface of which is coated, and a thermoplastic, as well as its production, its use and products made from it
  • the edge area preferably comprises less than 20% of the total surface of the molded body made of polycarbonate according to the invention. It is particularly preferably less than 10%.
  • the edge area is to be understood, for example, in the case of a plate, the surface close to the edge For example, in the case of a sphere, the edge area is an arbitrarily selected part of the surface of the shaped body.
  • the composite according to the invention is suitable for the production of various products.
  • the composite according to the invention is particularly suitable for producing framed objects, such as slide frames
  • the composite according to the invention is particularly suitable for the production of window panes made of polycarbonate, with either the seal or even the entire frame being attached to the coated polycarbonate pane by an injection molding process
  • the composite according to the invention is particularly suitable for the production of motor vehicle headlights.
  • the headlight lens can be formed by a molded body made of polycarbonate according to the invention
  • Another preferred use of the composite according to the invention is the production of picture frames, in which case the polycarbonate plate can additionally be provided with an anti-reflective coating
  • the composite according to the invention is preferably also used for the production of motor vehicle glazing
  • Another preferred use is the production of displays in plastic housings of all kinds, in particular diplays for computers and mobile telephones.
  • the screen of televisions can also be produced from the composite according to the invention
  • Figure 1 shows a polycarbonate film with holes in the edge area
  • FIG. 2 shows a polycarbonate film with cutouts in the edge area
  • Figure 3 shows a polycarbonate film with indentations or bulges in the edge area.
  • FIG. 4 shows a polycarbonate film with half-punching in the edge area.
  • Fig. 1 shows a coated, 0.8 mm thick polycarbonate film, which is provided with 16 holes in the edge area.
  • This film is e.g. encapsulated with a thermoplastic so that a slide frame is formed.
  • the thermoplastic material penetrates the hole, so that a form-fitting, firmly adhering bond is created.
  • the number and diameter of the holes depend on the forces acting between the film and the frame, i.e. what strength the bond must have.
  • FIG. 2 shows a coated, 5 mm thick polycarbonate plate, which in the edge area 6
  • the indentations were poured into the plate.
  • the indentations are filled with a thermoplastic material during the encapsulation of the polycarbonate sheet, so that a form-fitting, firmly bonded bond is created between the sheet and the sheet. This type of bond is particularly suitable for glazing.
  • Fig. 3 shows the section through a polycarbonate film.
  • the film 1 has indentations or bulges 2 in the edge area, which were worked into the film with a blunt tool. When overmoulding with a thermoplastic material, this encloses the indentations or bulges and thus creates the form-fitting, firmly adhering bond.
  • Fig. 4 shows the perspective view of a polycarbonate film with half die cuts in the edge area.
  • a circular segment 3 is partially punched out of the plate and bent outwards during the punching.
  • this approximately encloses the protruding circular disc 4 and thus generates the form-fitting, firmly adhering composite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to an interlocking composite made up of a surface-coated shaped body consisting of polycarbonate (1), said shaped body having special geometrical characteristics (2) in the edge area which promote adherence; and a polymer. The invention also relates to the production of said interlocking composite and to products which can be produced from the same.

Description

Verbund aus beschichtetem Polycarbonat und einem PolymerenComposite of coated polycarbonate and a polymer
Die vorliegende Erfindung betrifft einen formschlussigen Verbund zwischen einem Formkόrper aus Polycarbonat, dessen Oberflache beschichtet ist und der im Randbereich haftungsfördemde geometrische Besonderheiten aufweist und einem Polymeren sowie die Herstellung des genannten formschlussigen Verbundes und die Verwendung des genannten formschlussigen Verbundes zur Herstellung von Erzeugnissen und die aus dem formschlüssigen Verbund hergestellten ErzeugnisseThe present invention relates to a positive connection between a molded body made of polycarbonate, the surface of which is coated and which has geometrical features promoting adhesion in the edge area and a polymer, as well as the production of the said positive connection and the use of the said positive connection for the production of products and those made from positive composite manufactured products
Der Ersatz von Glas durch Polycarbonat schreitet immer weiter fort, insbesondere in Bereichen, in denen Glas aufgrund seines Gewichtes und/oder aufgrund semer Bruch- anfal gkeit nachteilig istThe replacement of glass with polycarbonate is progressing, especially in areas where glass is disadvantageous because of its weight and / or because of its susceptibility to breakage
Polycarbonat, das als Glasersatz eingesetzt werden kann, muß beschichtet sein, damit es kratzfest und auch gegen andere Umwelteinflüsse resistent ist Eine solche Beschichtung des Polycarbonats hat jedoch in der Regel zur Folge, daß das Polycarbonat mit anderen Polymeren keine chemische oder physikalische Bindung eingeht, so daß ein formschlussiger, festhaftender Verbund zwischen dem beschichteten Polycarbonat und einem anderen Polymeren ohne Zuhilfenahme von Verbindungsmitteln, wie z BPolycarbonate, which can be used as a glass replacement, must be coated so that it is scratch-resistant and also resistant to other environmental influences.As a rule, however, coating the polycarbonate in this way means that the polycarbonate does not form any chemical or physical bond with other polymers that a form-fitting, firmly adhering bond between the coated polycarbonate and another polymer without the aid of connecting agents, such as
Schrauben, im allgemeinen nicht möglich istScrews, generally not possible
Aufgabe der vorliegenden Erfindung ist es daher, einen Verbund zwischen einem Formkorper aus Polycarbonat, dessen Oberflache beschichtet ist, und einem Polyme- ren zur Verfügung zu stellen, der formschlussig und festhaftend ist, ohne Verbindungsmittel, wie z B Schrauben, zu benotigen sowie ein Verfahren zur Herstellung der erfindungsgemaßen Verbundes zur Verfügung zu stellen und Erzeugnisse zur Verfügung zu stellen, die aus dem erfindungsgemaßen Verbund hergestellt sindThe object of the present invention is therefore to provide a composite between a molded body made of polycarbonate, the surface of which is coated, and a polymer which is form-fitting and firmly adhering without the need for connecting means, such as screws, and a method to provide for the manufacture of the composite according to the invention and to provide products which are produced from the composite according to the invention
Die erfindungsgemaße Aufgabe wird gelost durch einen formschlussigen Verbund zwischen einem Formkorper aus Polycarbonat, dessen Oberflache beschichtet ist und der im Randbereich haftungsfördemde geometrische Besonderheiten aufweist und einem Polymeren, erhältlich durch Umspritzen oder Umgießen des Formkörpers im Randbereich mit dem Polymeren sowie durch ein Verfahren zur Herstellung des erfindungsgemaßen Verbundes durch Umspritzen oder Umgießen des Formkörpers aus Polycarbonat im Randbereich und durch die Verwendung des genannten formschlüssi- gen Verbundes zur Herstellung von Erzeugnissen und durch die so erhältlichen Erzeugnisse.The object according to the invention is achieved by a form-fitting connection between a molded body made of polycarbonate, the surface of which is coated and which has geometrical peculiarities in the edge area and a polymer, obtainable by extrusion-coating or encapsulation of the molded body in the edge region with the polymer, and by a process for producing the composite according to the invention by encapsulation or encapsulation of the molded body made of polycarbonate in the edge region and by using the aforementioned interlocking composite to produce products and by the products available in this way.
Der erfindungsgemäße Verbund hat den Vorteil, daß die Verbindung zwischen dem beschichteten Polycarbonat-Formkörper und dem Polymeren formschlüssig ist, ob- wohl der Formkörper und das Polymere weder eine chemische noch eine physikalische Bindung eingehen. Mit physikalischer Bindung ist z.B. eine besonders starke Adhäsion gemeint.The composite according to the invention has the advantage that the connection between the coated polycarbonate molded body and the polymer is form-fitting, although the molded body and the polymer enter into neither a chemical nor a physical bond. With physical bonding e.g. a particularly strong adhesion is meant.
Polycarbonate im Sinne der vorliegenden Erfindung sind sowohl Homopolycarbonate als auch Copolycarbonate. Die Polycarbonate können linear oder verzweigt sein. Bevorzugt wird das Homopolycarbonat auf Basis von Bisphenol A (2,2-Bis-(4-hydroxy- phenyl)-propan) oder das Copolycarbonat auf Basis von Bisphenol A und bis zu 60 Mol-%, bezogen auf die Molsumme an Bisphenolen, l,l-Bis-(4-hydroxyphenyl)- 3,3,5-trimethylcyclohexan eingesetzt. Besonders bevorzugt wird das Homopolycarbo- nat auf Basis von Bisphenol A eingesetzt.For the purposes of the present invention, polycarbonates are both homopolycarbonates and copolycarbonates. The polycarbonates can be linear or branched. Preferred is the homopolycarbonate based on bisphenol A (2,2-bis (4-hydroxyphenyl) propane) or the copolycarbonate based on bisphenol A and up to 60 mol%, based on the molar sum of bisphenols, l , l-bis (4-hydroxyphenyl) - 3,3,5-trimethylcyclohexane used. The homopolycarbonate based on bisphenol A is particularly preferably used.
Polycarbonate im Sinne der vorliegenden Erfindung sind auch solche aromatische Polycarbonate, bei denen bis zu 80 Mol-%, vorzugsweise von 20 Mol-% bis zu 50 Mol-% der Carbonatgruppen durch aromatische Dicarbonsäureestergruppen er- setzt sind. Derartige Polycarbonate, die sowohl Säurereste der Kohlensäure als auchFor the purposes of the present invention, polycarbonates are also aromatic polycarbonates in which up to 80 mol%, preferably from 20 mol% to 50 mol%, of the carbonate groups have been replaced by aromatic dicarboxylic acid ester groups. Such polycarbonates, which are both acid residues of carbonic acid as well
Säurereste von aromatischen Dicarbonsäuren in die Molekülkette eingebaut enthalten, werden als aromatische Polyestercarbonate bezeichnet. Sie sollen unter dem Oberbegriff der Polycarbonate subsumrniert werden.Containing acid residues of aromatic dicarboxylic acids built into the molecular chain are referred to as aromatic polyester carbonates. They should be subsumed under the generic term of polycarbonates.
Die Herstellung von Polycarbonaten kann nach bekannten Verfahren erfolgen. Beispielhaft sei hier nur verwiesen auf Schnell, Chemistry and Physics of Polycarbonates, Polymer Reviews, Volume 9, Interscience Publishers, New York, London, Sydney 1964, sowie auf D.C. Prevorsek, B.T. Debona and Y. Kesten, Corporate Research Center, Allied Chemical Corporation, Morristown, New Jersey 07960, "Synthesis of Poly(estercarbonate)copolymers" in Journal of Polymer Science, Polymer Chemistry Edition, Vol. 19, 75-90 (1980), sowie auf D. Freitag, U. Grigo, P. R. Müller, N. Nou- vertne, BAYER AG, "Polycarbonates" in Encyclopedia of Polymer Science and Engineering, Volume 11, Second Edition, 1988, Seiten 648-718 und schließlich auf U.Grigo, K. Kircher und P. R. Müller, "Polycarbonate" in Becker, Braun, Kunststoff- Handbuch, Band 3/1, Polycarbonate, Polyacetale, Polyester, Celluloseester, Carl Hanser Verlag München, Wien, 1992, Seiten 117-299.Polycarbonates can be produced by known processes. Examples include Schnell, Chemistry and Physics of Polycarbonates, Polymer Reviews, Volume 9, Interscience Publishers, New York, London, Sydney 1964, and on DC Prevorsek, BT Debona and Y. Kesten, Corporate Research Center, Allied Chemical Corporation, Morristown, New Jersey 07960, "Synthesis of Poly (estercarbonate) copolymers" in Journal of Polymer Science, Polymer Chemistry Edition, Vol. 19 , 75-90 (1980), as well as on D. Freitag, U. Grigo, PR Müller, N. Nouvertne, BAYER AG, "Polycarbonates" in Encyclopedia of Polymer Science and Engineering, Volume 11, Second Edition, 1988, pages 648-718 and finally on U. Grigo, K. Kircher and PR Müller, "Polycarbonate" in Becker, Braun, Kunststoff-Handbuch, Volume 3/1, Polycarbonate, Polyacetale, Polyester, Celluloseester, Carl Hanser Verlag Munich, Vienna, 1992 , Pages 117-299.
Die erfindungsgemaßen Polycarbonate haben mittlere Molekulargewichte Mw von 12 000 bis 400 000 g/mol (ermittelt durch Messung der relativen Viskosität einer Lösung von Methylenchlorid, die eine Konzentration von 0,5 g Polycarbonat pro 100 ml Methylenchlorid aufweist, bei 25°C), vorzugsweise von 18 000 bis 80 000 g/mol und insbesondere von 22 000 bis 60 000 g/molThe polycarbonates according to the invention have average molecular weights M w of 12,000 to 400,000 g / mol (determined by measuring the relative viscosity of a solution of methylene chloride which has a concentration of 0.5 g of polycarbonate per 100 ml of methylene chloride at 25 ° C.), preferably from 18,000 to 80,000 g / mol and in particular from 22,000 to 60,000 g / mol
Die erfindungsgemäßen Polycarbonate können Additive enthaltenThe polycarbonates according to the invention can contain additives
Beschichtet im Sinne der Erfindung bedeutet, daß der Formkorper aus Polycarbonat mit einer kratzfesten, chemikalienbestandigen und optional UV-absorbierenden Ober- flachenbeschichtung versehen ist, die zusatzlich hydrophile oder hydrophobe Eigenschaften aufweisen kann Bevorzugt sind mehr als 50 % des Randbereiches des erfindungsgemaßen Formkörpers aus Polycarbonat beschichtet Besonders bevorzugt sind mehr als 75% des Randbereiches beschichtetCoated in the sense of the invention means that the molded body made of polycarbonate is provided with a scratch-resistant, chemical-resistant and optionally UV-absorbing surface coating, which can additionally have hydrophilic or hydrophobic properties. Preferably more than 50% of the edge area of the molded body according to the invention is coated with polycarbonate More than 75% of the edge region is particularly preferably coated
Als Oberflachenbeschichtung können alle dem Fachmann bekannten Beschichtungen eingesetzt werden, die das Polycarbonat so kratzfest machen, daß es eine glasahnliche Oberflachenstruktur aufweist Vorzugsweise wird eine Oberflachenbeschichtung eingesetzt wie sie in der WO 95/13 426 beschrieben istAll coatings known to the person skilled in the art can be used as the surface coating, which make the polycarbonate so scratch-resistant that it has a glass-like surface structure. A surface coating is preferably used as described in WO 95/13 426
Der Verbund zwischen dem erfindungsgemaßen Formkorper aus Polycarbonat und dem Polymeren wird dadurch erreicht, daß der Formkorper im Randbereich mit einem Polymeren umspritzt oder umgössen wird. Polymere im Sinne der Erfindung sind alle Thermoplaste, aber auch gummiartige Polymere (Kautschucke), wie sie z.B. als Dichtungsmasse eingesetzt werden oder auch duroplastische Polymere. Auch Blends der genannten Polymere können eingesetzt werden.The bond between the molded body made of polycarbonate and the polymer is achieved in that the molded body with a Polymers overmolded or overmolded. Polymers in the sense of the invention are all thermoplastics, but also rubber-like polymers (rubbers), such as are used, for example, as a sealing compound, or also thermosetting polymers. Blends of the polymers mentioned can also be used.
Bevorzugt wird der erfindungsgemäße Verbund durch Umspritzen mit Thermoplasten hergestellt.The composite according to the invention is preferably produced by extrusion coating with thermoplastics.
Als Thermoplaste seien beispielhaft genannt Polystyrol, Polyurethan, Polyamid, Po y- ester, Polyacetal, Polyacrylat, Polycarbonat, Polyethylen, Polypropylen, Polyvinylchlorid, Polystyrolacrylnitril, sowie Copolymere auf Basis der genannten Polymere und Blends der genannten Polymere oder Copolymere untereinander oder mit weiteren Polymeren.Examples of thermoplastics are polystyrene, polyurethane, polyamide, polyester, polyacetal, polyacrylate, polycarbonate, polyethylene, polypropylene, polyvinyl chloride, polystyrene acrylonitrile, and copolymers based on the polymers mentioned and blends of the polymers mentioned or copolymers with one another or with other polymers.
Gummiartige Polymere im Sinne der Erfindung sind z.B. Polyisopren, Polychloropren,Rubbery polymers in the sense of the invention are e.g. Polyisoprene, polychloroprene,
Styrol-Butadien-Kautschuk, gummiartige ABS-Polymere, Copolymere aus Ethylen und einer oder mehrerer der folgenden Verbindungen: Vinylacetat, Acrylsäureester, Methacrylsäureester oder Propylen.Styrene-butadiene rubber, rubber-like ABS polymers, copolymers of ethylene and one or more of the following compounds: vinyl acetate, acrylic acid ester, methacrylic acid ester or propylene.
Weiterhin können als Polymere im Sinne der Erfindung auch Gießharze wie z.B. ungesättigte Polyester, Epoxidharzmassen, Acrylate, Formaldehydharze oder Polyurethane verwendet werden.Casting resins such as e.g. Unsaturated polyesters, epoxy resin compositions, acrylates, formaldehyde resins or polyurethanes can be used.
Erfindungsgemäß einsetzbare Thermoplaste, Kautschuke und Duroplaste sind z.B. aufgeführt in Saechtling, Kunststoff-Taschenbuch, Ausgabe 26, Carl Hanser Verlag,Thermoplastics, rubbers and thermosets which can be used according to the invention are e.g. listed in Saechtling, plastic paperback, edition 26, Carl Hanser Verlag,
München, Wien, 1995 sowie in Vieweg und Braun, Kunststoff-Handbuch, Carl Hanser Verlag München, Wien, 1995 sowie in Becker, Braun, Kunststoff-Handbuch, Carl Hanser Verlag, München, Wien, 1992.Munich, Vienna, 1995 and in Vieweg and Braun, plastic manual, Carl Hanser Verlag Munich, Vienna, 1995 and in Becker, Braun, plastic manual, Carl Hanser Verlag, Munich, Vienna, 1992.
Die erfindungsgemäßen Polymere können Additive enthalten. Bevorzugt wird der erfindungsgemäße Verbund durch Umspritzen mit Thermoplasten hergestellt.The polymers according to the invention can contain additives. The composite according to the invention is preferably produced by extrusion coating with thermoplastics.
Vorzugsweise ist der Formkorper aus Polycarbonat eine Platte oder eine Folie. Die Platte kann entweder eben oder gewölbt sein Gewölbt im Sinne der Erfindung bedeutet, daß die Platte gebogen ist, so daß sie eine bestimmte Form aufweist, wie sie z B. im Automobilbau in Form der Frontscheibe oder Heckscheibe oder beim Hausbau als Dachfenster benotigt werden. Die Platte hat vorzugsweise eine Dicke von 1 mm bis 3 cm, besonders bevorzugt 3 mm bis 10 mm Die Folie hat vorzugsweise eine Dicke von weniger als 1 mm, besonders bevorzugt 0,25 bis 1,0 mmThe molded body made of polycarbonate is preferably a plate or a film. The plate can either be flat or curved. For the purposes of the invention, curved means that the plate is curved so that it has a specific shape, as is required, for example, in automobile construction in the form of the front or rear window or in house construction as a roof window. The plate preferably has a thickness of 1 mm to 3 cm, particularly preferably 3 mm to 10 mm. The film preferably has a thickness of less than 1 mm, particularly preferably 0.25 to 1.0 mm
In einer anderen bevorzugten Ausgestaltung der Erfindung weist der Formkorper eine Rundung der Oberflache auf, wie sie insbesondere bei optischen Linsen vorkommtIn another preferred embodiment of the invention, the shaped body has a rounded surface, as occurs in particular with optical lenses
Vorzugsweise weist der Formkorper als haftungsfördemde geometrische Besonderheit im Randbereich eines oder mehrere der Merkmale Aussparungen oder runde oder ovale Bohrungen oder Einbuchtungen oder Ausbuchtungen oder Ausstanzungen oder Halbstanzungen oder Wellungen auf, die beim Umspritzen oder Umgießen von dem Polymeren umschlossen werden, so daß eine formschlussige Verbindung zwischen dem Formkorper und dem Polymeren resultiertPreferably, the molded body, as a geometric feature that promotes adhesion, has one or more of the features of cutouts or round or oval bores or indentations or bulges or cutouts or half-punchings or corrugations which are enclosed by the polymer during the encapsulation or casting, so that a positive connection between the molded body and the polymer results
Eine bevorzugte Ausführungsform der Erfindung ist ein formschlussiger Verbund aus Polycarbonat auf Basis von Bisphenol A, dessen Oberflache beschichtet ist, und einem Thermoplasten sowie seine Herstellung, seine Verwendung und aus ihm hergestellte ErzeugnisseA preferred embodiment of the invention is a form-fitting composite of polycarbonate based on bisphenol A, the surface of which is coated, and a thermoplastic, as well as its production, its use and products made from it
Der Randbereich umfaßt bevorzugt weniger als 20 % der gesamten Oberflache des erfindungsgemaßen Formkorpers aus Polycarbonat Besonders bevorzugt umfaßt er weniger als 10 % Unter Randbereich soll z B bei einer Platte die kantennahe Ober- flache verstanden werden Bei Formkorpern, deren Gestalt keinen eindeutigen Rand aufweist, wie z B bei einer Kugel, ist der Randbereich ein willkürlich ausgewählter Teil der Oberflache des Formkorpers Der erfindungsgemäße Verbund eignet sich zur Herstellung verschiedener Erzeugnisse. Der erfindungsgemäße Verbund eignet sich besonders zur Herstellung von eingerahmten Objekten, wie z B DiarahmenThe edge area preferably comprises less than 20% of the total surface of the molded body made of polycarbonate according to the invention. It is particularly preferably less than 10%. The edge area is to be understood, for example, in the case of a plate, the surface close to the edge For example, in the case of a sphere, the edge area is an arbitrarily selected part of the surface of the shaped body The composite according to the invention is suitable for the production of various products. The composite according to the invention is particularly suitable for producing framed objects, such as slide frames
Ferner eignet sich der erfindungsgemäße Verbund besonders zur Herstellung von Fensterscheiben aus Polycarbonat, wobei entweder die Dichtung oder sogar der gesamte Rahmen an die beschichtete Polycarbonatscheibe durch einen Spritzgußvorgang angebracht wirdFurthermore, the composite according to the invention is particularly suitable for the production of window panes made of polycarbonate, with either the seal or even the entire frame being attached to the coated polycarbonate pane by an injection molding process
Ferner eignet sich der erfindungsgemäße Verbund besonders zur Herstellung von Kfz- Scheinwerfern In diesem Fall kann z B die Scheinwerferlinse durch einen erfindungsgemaßen Formkorper aus Polycarbonat gebildet werdenFurthermore, the composite according to the invention is particularly suitable for the production of motor vehicle headlights. In this case, for example, the headlight lens can be formed by a molded body made of polycarbonate according to the invention
Eine weitere bevorzugte Verwendung des erfindungsgemaßen Verbundes ist die Herstellung von Bilderrahmen wobei bei dieser Verwendung die Polycarbonatplatte zusätzlich noch mit einer Antireflex-Beschichtung versehen sein kannAnother preferred use of the composite according to the invention is the production of picture frames, in which case the polycarbonate plate can additionally be provided with an anti-reflective coating
Bevorzugt wird der erfindungsgemäße Verbund auch zur Herstellung von Kraftfahr- zeugverglasungen verwendetThe composite according to the invention is preferably also used for the production of motor vehicle glazing
Eine weitere bevorzugte Verwendung ist die Herstellung von Displays in Kunststoff- gehausen jeglicher Art, insbesondere Diplays für Computer und Mobil-Telefone Auch die Mattscheibe von Fernsehern kann aus dem erfindungsgemaßen Verbund herge- stellt werdenAnother preferred use is the production of displays in plastic housings of all kinds, in particular diplays for computers and mobile telephones. The screen of televisions can also be produced from the composite according to the invention
Im folgenden wird die Erfindung anhand der Figuren 1 bis 3 erläutert Diese Erläuterungen sind lediglich beispielhaft und schranken somit die Erfindung nicht einThe invention is explained below with reference to FIGS. 1 to 3. These explanations are only examples and thus do not limit the invention
Figur 1 zeigt eine Polycarbonatfohe mit Bohrungen im RandbereichFigure 1 shows a polycarbonate film with holes in the edge area
Figur 2 zeigt eine Polycarbonatfohe mit Aussparungen im Randbereich Figur 3 zeigt eine Polycarbonatfolie mit Ein- bzw. Ausbuchtungen im Randbereich.FIG. 2 shows a polycarbonate film with cutouts in the edge area Figure 3 shows a polycarbonate film with indentations or bulges in the edge area.
Figur 4 zeigt eine Polycarbonatfolie mit Halbstanzung im Randbereich.FIG. 4 shows a polycarbonate film with half-punching in the edge area.
Fig. 1 zeigt eine beschichtete, 0,8 mm dicke Polycarbonatfolie, die im Randbereich mit 16 Bohrungen versehen ist. Diese Folie wird im Randbereich z.B. mit einem Thermoplasten umspritzt, so daß ein Diarahmen entsteht. Beim Umspritzen durchdringt das thermoplastische Material die Bohrung, so daß ein formschlüssiger, festhaftender Verbund entsteht. Die Anzahl und der Durchmesser der Bohrungen sind davon abhängig, welche Kräfte zwischen der Folie und dem Rahmen wirken, d.h. welche Festigkeit der Verbund aufweisen muß.Fig. 1 shows a coated, 0.8 mm thick polycarbonate film, which is provided with 16 holes in the edge area. This film is e.g. encapsulated with a thermoplastic so that a slide frame is formed. When overmoulding, the thermoplastic material penetrates the hole, so that a form-fitting, firmly adhering bond is created. The number and diameter of the holes depend on the forces acting between the film and the frame, i.e. what strength the bond must have.
Fig. 2 zeigt eine beschichtete, 5 mm dicke Polycarbonatplatte, die im Randbereich 6FIG. 2 shows a coated, 5 mm thick polycarbonate plate, which in the edge area 6
Einbuchtungen mit Hinterschneidungen aufweist. Die Einbuchtungen wurden in die Platte eingegossen. Die Einbuchtungen werden beim Umspritzen der Polycarbonatplatte mit einem thermoplastischen Material ausgefüllt, so daß ein formschlüssiger, festhaftender Verbund zwischen diesem und der Platte entsteht. Diese Art des Ver- bundes eignet sich insbesondere für Verglasungen.Has indentations with undercuts. The indentations were poured into the plate. The indentations are filled with a thermoplastic material during the encapsulation of the polycarbonate sheet, so that a form-fitting, firmly bonded bond is created between the sheet and the sheet. This type of bond is particularly suitable for glazing.
Fig. 3 zeigt den Schnitt durch eine Polycarbonatfolie. Die Folie 1 weist Einbuchtungen bzw. Ausbuchtungen 2 im Randbereich auf, die mit einem stumpfen Werkzeug in die Folie eingearbeitet wurden. Beim Umspritzen mit einem thermoplastischen Mate- rial umschließt dieses die Einbuchtungen bzw. Ausbuchtungen und erzeugt somit den formschlüssigen, festhaftenden Verbund.Fig. 3 shows the section through a polycarbonate film. The film 1 has indentations or bulges 2 in the edge area, which were worked into the film with a blunt tool. When overmoulding with a thermoplastic material, this encloses the indentations or bulges and thus creates the form-fitting, firmly adhering bond.
Fig. 4 zeigt die perspektivische Ansicht einer Polycarbonatfolie mit Halb stanzungen im Randbereich. Ein z.B. kreisförmiges Segment 3 wird teilweise aus der Platte aus- gestanzt und während des Stanzens nach außen gebogen. Beim Umspritzen mit einem thermoplastischen Material umschließt dieses die herausstehende, näherungsweise kreisförmige Scheibe 4 und erzeugt somit den formschlüssigen, festhaftenden Verbund. Fig. 4 shows the perspective view of a polycarbonate film with half die cuts in the edge area. For example, a circular segment 3 is partially punched out of the plate and bent outwards during the punching. When encapsulated with a thermoplastic material, this approximately encloses the protruding circular disc 4 and thus generates the form-fitting, firmly adhering composite.

Claims

Patentansprüche claims
1. Formschlüssiger Verbund zwischen einem Formkörper aus Polycarbonat, dessen Oberfläche beschichtet ist und der im Randbereich haftungsfördemde geometrische Besonderheiten aufweist, und einem Polymeren, erhältlich durch1. Positive connection between a molded body made of polycarbonate, the surface of which is coated and which has geometrical features promoting adhesion in the edge area, and a polymer, obtainable by
Umspritzen oder Umgießen des Formkörpers im Randbereich mit dem Polymeren.Injection molding or casting around the molding in the edge area with the polymer.
2. Verbund gemäß Anspruch 1, dadurch gekennzeichnet, daß der Formkörper aus Polycarbonat eine ebene oder gewölbte Platte oder Folie ist2. Composite according to claim 1, characterized in that the molded body made of polycarbonate is a flat or curved plate or film
3. Verbund gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die haf- tungsfordernden geometrischen Besonderheiten der Gruppe Bohrungen, Einbuchtungen, Ausbuchtungen, Ausstanzungen, Halbstanzungen oder Wellungen entstammen3. Composite according to claim 1 or 2, characterized in that the liability-demanding geometric peculiarities of the group originate from bores, indentations, bulges, punchings, half-punchings or corrugations
4 Verbund gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Polymere ein Thermoplast ist.4 composite according to one of claims 1 to 3, characterized in that the polymer is a thermoplastic.
5. Verbund gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Polycarbonat eine kratzfeste Oberflachenbeschichtung aufweist.5. Composite according to one of claims 1 to 4, characterized in that the polycarbonate has a scratch-resistant surface coating.
6. Verfahren zur Herstellung eines formschlussigen Verbundes zwischen einem6. Method for producing a positive connection between a
Formkörper aus Polycarbonat, dessen Oberfläche beschichtet ist, und der im Randbereich haftungsfördemde geometrische Besonderheiten aufweist und einem Polymeren, durch Umspritzen oder Umgießen des Formkorpers aus Polycarbonat im RandbereichMolded body made of polycarbonate, the surface of which is coated, and which has geometrical features which promote adhesion in the edge area and a polymer, by extrusion coating or casting around the molded body made of polycarbonate in the edge area
7 Verwendung des Verbundes gemäß einem der Ansprüche 1 bis 5 zur Herstel- lung von Erzeugnissen 7 Use of the composite according to one of claims 1 to 5 for the manufacture of products
8 Verwendung des Verbundes gemäß einem der Ansprüche 1 bis 5 zur Herstellung von Diarahmen oder Bilderrahmen.8 Use of the composite according to one of claims 1 to 5 for the production of slide frames or picture frames.
9. Verwendung des Verbundes gemäß einem der Ansprüche 1 bis 5 zur Herstel- lung von Fenstern mit Dichtung oder Fenstern mit Rahmen9. Use of the composite according to one of claims 1 to 5 for the manufacture of windows with seals or windows with frames
10 Verwendung des Verbundes gemäß einem der Ansprüche 1 bis 5 zur Herstellung von Kraftfahrzeugverglasungen10 Use of the composite according to one of claims 1 to 5 for the production of motor vehicle glazing
11 Verwendung des Verbundes gemäß einem der Ansprüche 1 bis 5 zur Herstellung von Displays in einem Kunststoffgehause11 Use of the composite according to one of claims 1 to 5 for the production of displays in a plastic housing
12 Erzeugnisse erhaltlich aus einem Verbund gemäß einem der Ansprüche 1 bis 512 products obtainable from a composite according to one of claims 1 to 5
13 Bilderrahmen oder Diarahmen erhaltlich aus einem Verbund gemäß einem der13 picture frames or slide frames available from a composite according to one of the
Ansprüche 1 bis 5Claims 1 to 5
14 Fenster mit Dichtungen oder Fenster mit Rahmen erhaltlich aus einem Verbund gemäß einem der Ansprüche 1 bis 514 windows with seals or windows with frames available from a composite according to one of claims 1 to 5
15 Kraftfahrzeugverglasungen erhältlich aus einem Verbund gemäß einem der Ansprüche 1 bis 515 motor vehicle glazing available from a composite according to one of claims 1 to 5
16 Displays in einem Kunststoffgehause erhaltlich aus einem Verbund gemäß ei- nem der Ansprüche 1 bis 5 16 displays in a plastic housing obtainable from a composite according to one of claims 1 to 5
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Publication number Priority date Publication date Assignee Title
WO2018054847A1 (en) 2016-09-22 2018-03-29 Covestro Deutschland Ag Transparent moulded parts having reduced thickness

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US6548146B1 (en) 2003-04-15
IL139284A (en) 2004-06-20
AU3826299A (en) 1999-12-06
CA2331578C (en) 2011-07-19
BR9910451A (en) 2001-01-02
CN1300248A (en) 2001-06-20
AU743927B2 (en) 2002-02-07
ID27450A (en) 2001-04-12
CN1134328C (en) 2004-01-14
KR100585908B1 (en) 2006-06-02
JP2002515361A (en) 2002-05-28
IL139284A0 (en) 2001-11-25
KR20010043544A (en) 2001-05-25
CA2331578A1 (en) 1999-11-25
WO1999059793A1 (en) 1999-11-25
TWI225442B (en) 2004-12-21

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