FR2600981A3 - Self-adhesive flexible film for temporary protection and process of manufacture - Google Patents
Self-adhesive flexible film for temporary protection and process of manufacture Download PDFInfo
- Publication number
- FR2600981A3 FR2600981A3 FR8609867A FR8609867A FR2600981A3 FR 2600981 A3 FR2600981 A3 FR 2600981A3 FR 8609867 A FR8609867 A FR 8609867A FR 8609867 A FR8609867 A FR 8609867A FR 2600981 A3 FR2600981 A3 FR 2600981A3
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- Prior art keywords
- adhesive
- layer
- micrometers
- self
- ethylene
- Prior art date
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- Granted
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 229920006226 ethylene-acrylic acid Polymers 0.000 claims description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- -1 polyethylene, ethylene vinyl acetate Polymers 0.000 claims description 9
- PZWQOGNTADJZGH-SNAWJCMRSA-N (2e)-2-methylpenta-2,4-dienoic acid Chemical compound OC(=O)C(/C)=C/C=C PZWQOGNTADJZGH-SNAWJCMRSA-N 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 7
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 229920005549 butyl rubber Polymers 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 229920002367 Polyisobutene Polymers 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 abstract description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/306—Applications of adhesives in processes or use of adhesives in the form of films or foils for protecting painted surfaces, e.g. of cars
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
FILM SOUPLE, AUTO-ADHESIF DE PROTECTION TEMPORAIRE DE SURFACES FRAGILES, CARACTERISE EN CE QU'IL EST CONSTITUE DE DEUX COUCHES SUPERPOSEES, ACCOLEES ET CO-EXTRUDEES: -L'UNE 11 EN MATIERE THERMOPLASTIQUE, -L'AUTRE 12 EN UNE MATIERE AUTO-ADHESIVE, ENLEVABLE ET ADHERANT FERMEMENT A LA COUCHE ACCOLEE 11 DE MATIERE THERMOPLASTIQUE. APPLICATION: PROTECTION DE SURFACES FRAGILES.SELF-ADHESIVE, SELF-ADHESIVE FILM FOR TEMPORARY PROTECTION OF FRAGILE SURFACES, CHARACTERIZED IN THAT IT CONSISTS OF TWO SUPERIMPOSED LAYERS, ATTACHED AND CO-EXTRUDED: -One 11 IN THERMOPLASTIC MATERIAL, -Other 12 IN SELF-EXTRUDED MATERIAL -ADHESIVE, REMOVABLE AND STRONGLY ADHESIVE TO LAYER 11 OF THERMOPLASTIC MATERIAL. APPLICATION: PROTECTION OF FRAGILE SURFACES.
Description
FILM SOUPLE DE PROTECTION TEMPORAIRE AUTO-ADHESIF ET
PROCEDE DE FABRICATION.FLEXIBLE SELF-ADHESIVE TEMPORARY PROTECTION FILM
MANUFACTURING PROCESS.
L'invention concerne un nouveau film souple auto adhésif de protection temporaire de surfaces fragiles. The invention relates to a new flexible self-adhesive film for temporary protection of fragile surfaces.
Elle se rapporte également à son procédé de fabrication.It also relates to its manufacturing process.
L'utilisation de films de protection adhésifs est connue en soi. L'une des solutions actuelles consiste à coucher une masse d'adhésif sur un film plastique, en phase aqueuse ou en phase organique. Le produit obtenu présente les inconvénients suivants
- tout d'abord, un risque de report de l'adhésif sur la surface à prctéger,du fait de la mauvaise qualité du transfert
- un coût élevé du fait que l'obtention de ce produit passe par deux opérations à savoir l'extrusion et le couchage.The use of adhesive protective films is known per se. One of the current solutions consists of coating a mass of adhesive on a plastic film, in the aqueous phase or in the organic phase. The product obtained has the following drawbacks
- first of all, a risk of transfer of the adhesive to the surface to be protected, due to the poor quality of the transfer
- a high cost due to the fact that obtaining this product involves two operations, namely extrusion and coating.
Une deuxième solution concerne les filins thermocol- lants. Ils sont formés par co-extrusion d'un mélange de polyamide et d'éthylène vinyl acétate (couramment dénommé EVA). Leur fixation sur la surface à protéger s'effectue par simple chauffage.Cette solution présente également des inconvénients parmi lesquels on peut citer
- la nécessité d'utiliser un dispositif de chauffa
ge
- 1'EVA qui , utilisé pur, ne convient pas pour la
protection des métaux car il les corrode du fait
de la présente en son sein de traces d'acide
résiduelles.A second solution concerns thermo-adhesive cables. They are formed by co-extrusion of a mixture of polyamide and ethylene vinyl acetate (commonly called EVA). They are fixed to the surface to be protected by simple heating. This solution also has drawbacks, among which we can cite
- the need to use a heating device
age
- EVA which, used pure, is not suitable for
protection of metals because it corrodes them because
of the present within it traces of acid
residual.
Une troisième solution consiste à appliquer un film de polyéthylène sul la surface à protéger par décharge corona,c'est-à-dire par induction de charges électrosta tiques sur le film protecteur, puis attraction coulombienne avec le métal à protéger
Toutefois , cette solution est d'utilisation tout à fait marginale et suppose un appareillage particulier.A third solution consists in applying a polyethylene film on the surface to be protected by corona discharge, that is to say by induction of electrostatic charges on the protective film, then Coulomb attraction with the metal to be protected
However, this solution is entirely marginal in use and requires special equipment.
L'invention pallie ces inconvénients. Elle propose un film souple, auto-adhésif, de protection temporaire -de surfaces fragiles.Elle se caractérise en ce qu'il est constitué de deux couches superposées accolées et coextrudées :
- l'une en matière thermoplastique
- l'autre en une matière auto-adhésive , enlevable
et adhérant fermement à la couche accolée de
matière thermoplastique.The invention overcomes these drawbacks. It offers a flexible, self-adhesive film for temporary protection - of fragile surfaces. It is characterized in that it consists of two superimposed layers joined together and coextruded:
- one in thermoplastic material
- the other in a self-adhesive, removable material
and firmly adhering to the adjoining layer of
thermoplastic material.
Avantageusement, en pratique
- la couche en matière thermoplastique présente une épaisseur comprise entre 5 et 200 micromètres et de préférence entre 50 et 80 micromètres. En effet, on a constaté que si l'épaisseur était inférieure à 5 micromètres le matériau thermoplastique devenait difficilement extrudable d'une part et d'autre part, le film obtenu présentait des qualités de protection réduites vis-à-vis de la surface à protéger.Si l'épaisseur dépasse-200 micromètres, la portée est limitée et l'intérêt réduit
- la couche thermoplastique est réalisée en polyoléfine, polyamide, copolymère, mais de préférence en polyéthylène
- la couche adhésive est constituée par un mélange comprenant
une résine de base, choisie dans le groupe
constitué par le polyéthylène , l'éthylène
vinyl acétate (EVA), l'éthylène acrylique
acide (EAA) et l'éthylène méthacrylique
acide (EMAA),
des résines collantes , naturelles ou
synthétiques à raison de 10 à 40 %, et de
préférence de 25 à 30 % en poids de la cou
che adhésive.En effet, on a constaté qu'au
dessous de 10 % en poids de la masse adhé
sive , les propriétés d'adhérence étaient
très limitées , voir nulles, et,au delà dé
40-%,on observe une migration de la résine,
et on obtient un produit poisseux peu
utilisable
- le mélange adhésif contient également du caoutchouc butyle, nitrile ou polyisobutylène, de préférence butyle,jusqu'à50 X en poids de la masse adhésive
- l'épaisseur de la masse adhésive est de 5 à 25 micromètres.Advantageously, in practice
- The layer of thermoplastic material has a thickness between 5 and 200 micrometers and preferably between 50 and 80 micrometers. Indeed, it was found that if the thickness was less than 5 micrometers the thermoplastic material became difficult to extrudate on the one hand and on the other hand, the film obtained exhibited reduced protective qualities with respect to the surface to be protect.If the thickness exceeds -200 micrometers, the range is limited and the interest reduced
- the thermoplastic layer is made of polyolefin, polyamide, copolymer, but preferably of polyethylene
- the adhesive layer consists of a mixture comprising
a base resin, chosen from the group
consisting of polyethylene, ethylene
vinyl acetate (EVA), ethylene acrylic
acid (EAA) and methacrylic ethylene
acid (EMAA),
sticky, natural or
synthetic at 10 to 40%, and
preferably 25 to 30% by weight of the neck
In fact, it has been found that
below 10% by weight of the adhered mass
sive, the adhesion properties were
very limited, or even zero, and beyond
40 -%, migration of the resin is observed,
and we get a little sticky product
usable
- the adhesive mixture also contains butyl, nitrile or polyisobutylene, preferably butyl rubber, up to 50% by weight of the adhesive mass
- the thickness of the adhesive mass is 5 to 25 micrometers.
L'invention concerne également un film souple spécifique, auto-adhésif, de protection temporaire de surfaces fragiles, caractérisé
- en ce qu'il est constitué de deux couches super posées,accolées'et co-extrudées
. l'une en matière thermoplastique,
. l'autre en une matière auto - adhésive
enlevable , et adhérant fermement à la
couche accolée de matière thermoplastique
- en ce quelea couche en matière thermoplastique présente une épaisseur comprise entre 5 et 200 micromètres et de préférence entre 50 et 80 micromètres
- en ce que la couche thermoplastique est en polyéthylène basse densité
- en ce que la couche adhésive est constituée par un mélange comprenant ::
une résine de base choisie dans le groupe
constitué par le polyéthylène,l'éthylène vi
nyl acétate (EVA),l'éthylène acrylique acide
(EAA),et l'éthylène méthacrylique acide (EMAA),
des résines collantes naturelles ou syn
thétiques à raison de 10 à 40 % et de préfé
rence de 25 à 30 % en poids de la couche
adhésive
- en ce que le mélange adhésif contient également du caoutchouc butyle,- nitrile, ou polyisobutylène ,de préférence butyle, jusqu'à 50 % en poids de la masse adhésive
- en ce que l'épaisseur de la couche adhésive est comprise entre 5et 25 micromètres.The invention also relates to a specific flexible film, self-adhesive, for temporary protection of fragile surfaces, characterized
- in that it consists of two superposed layers, joined together and co-extruded
. one in thermoplastic material,
. the other in a self-adhesive material
removable, and firmly adhering to the
joined layer of thermoplastic material
in that the layer of thermoplastic material has a thickness of between 5 and 200 micrometers and preferably between 50 and 80 micrometers
- in that the thermoplastic layer is made of low density polyethylene
- in that the adhesive layer consists of a mixture comprising:
a base resin chosen from the group
consisting of polyethylene, ethylene vi
nyl acetate (EVA), ethylene acrylic acid
(EAA), and ethylene methacrylic acid (EMAA),
natural or syn sticky resins
10 to 40% and preferably
25 to 30% by weight of the layer
adhesive
- in that the adhesive mixture also contains butyl rubber, - nitrile, or polyisobutylene, preferably butyl, up to 50% by weight of the adhesive mass
- in that the thickness of the adhesive layer is between 5 and 25 micrometers.
La présente invention concerne également le procédé pour la fabrication du film souple, auto-adhésif, de protection temporaire . I1 se caractérise en ce qu'il consiste
- à co-extruder-d'une part une résine thermoplastique extrudable et d'autre part, un mélange adhésif extrudable comprenant
. une resine de base choisie dans le groupe
constitué par le polyéthylène , l'éthylène
vinyl acétate (EVA) , l'éthylène acrylique
acide (EAA) , et l'éthylène méthacrylique
acide (EMAA),
. des résines collantes naturelles ou syn
thétiques à raison de 10 à 40 % et de préfé
rence de 25 à 30 % en poids de la masse
adhésive
- à co-extruder ces deux couches dans une filière concentrique et à soufflage simultané
- puis à découper le tube ainsi formé et le stocker sous forme de rouleaux
La manière dont l'invention peut être réalisée et les avantages qui en découlent ressortiront mieux des exemples de réalisation qui suivent,donnés à titre indicatif et non limitatif à l'appui des figures annexées. The present invention also relates to the process for manufacturing the flexible, self-adhesive film for temporary protection. I1 is characterized in that it consists
to co-extrude on the one hand an extrudable thermoplastic resin and on the other hand an extrudable adhesive mixture comprising
. a basic resin chosen from the group
consisting of polyethylene, ethylene
vinyl acetate (EVA), ethylene acrylic
acid (EAA), and methacrylic ethylene
acid (EMAA),
. natural or syn sticky resins
10 to 40% and preferably
25 to 30% by weight of the mass
adhesive
- to co-extrude these two layers in a concentric die and with simultaneous blowing
- then cut the tube thus formed and store it in the form of rolls
The manner in which the invention can be implemented and the advantages which ensue therefrom will emerge more clearly from the examples of embodiment which follow, given by way of indication and not limiting in support of the appended figures.
La figure 1 est une représentation schématique d'un matériau composite filmogène conforme à l'invention. Figure 1 is a schematic representation of a film-forming composite material according to the invention.
La figure 2 est une représentation schématique d'un mode de fabrication de ce produit. Figure 2 is a schematic representation of a method of manufacturing this product.
En se référant à la figure 2, l'installation pour la réalisation du film de protection auto-adhésif com- prend deux boudineuses monovis respectivement (1) et (2) avec leurs trémies de chargement (3) et (4). Ces boudineuses (1) et (2) alimentent l'entréed'unefilière circulaire (5) dans laquelle circule simultanément un courant d'air. Un film tubulaire (6) en forme de boyau est tiré de cette filière au moyen d'organes classiques appropriés (7).Le film tubulaire (6) est tout d'abord refroidi,découpé au moyen d'outils de découpe (8) dans le sens de la longueur, puis bobiné de manière conventionnelle par des organes (9). Referring to FIG. 2, the installation for producing the self-adhesive protective film comprises two single screw extruders respectively (1) and (2) with their loading hoppers (3) and (4). These extruders (1) and (2) feed the inlet of a circular die (5) in which a stream of air circulates simultaneously. A tubular film (6) in the form of a hose is drawn from this die by means of suitable conventional members (7). The tubular film (6) is first cooled, cut using cutting tools (8) lengthwise, then conventionally wound by means of members (9).
EXEMPLE 1
A l'aide du dispositif ainsi décrit, on réalise un film composite sous forme de deux couches accolées de la manière suivante.EXAMPLE 1
Using the device thus described, a composite film is produced in the form of two adjoining layers in the following manner.
On réalise tout d'abord un mélange maître à 50 % en poids de polyéthylène basse densité et de résines collantes, par exemple du type résines synthétiques en
C9 hydrogénées, qui présente une grande stabilité.Ces résines ont une consistance molle et ont pour but de donner du "collant1,. On réalise un second mélange maitre à base de 50 X en poids de caoutchouc butyle et de résines collantes de même nature que dans le premier mélange maître.On introduit alors ces deux mélanges maitres dans les deux trémies (3) et (4) correspondant aux boudineuses (1) et (2), la proportion de ces deux mélanges variant en -fonction de la qualité du produit désirée
De plus, afin d'augmenter les propriétés de résistances aux rayons ultra-violets, on introduit dans le mélange des matériaux dits "anti- UV", du type 2-hydroxy 4-méthoxybenzophénol 5-acide sulfurique en faible proportion. Le mélange de ces différents entités a lieu dans la trémie de co-extrusion à filière concentrique et à refroidissement interne, en présence d'EVA
On obtient un film (10) qui, après refroidissement et découpage, présente la structure symbolisée à la- fi- gure 1 .Il présente une épaisseur de 'j micromètres, et est constitué de deux couches superposées, co-extrudées et accolées, respectivement
- une couche (11) d'environ 50 micromètres d'épaisseur constituée de polyéthylène basse densité,
- et une couche (12) d'environ 15 micromètres d'épaisseur correspondant au matériau adhésif.First of all, a 50% by weight masterbatch of low density polyethylene and sticky resins is made, for example of the synthetic resin type.
C9 hydrogenated, which has great stability. These resins have a soft consistency and are intended to give "stickiness". in the first masterbatch. These two masterbatchs are then introduced into the two hoppers (3) and (4) corresponding to the extruders (1) and (2), the proportion of these two mixtures varying according to the quality of the product. desired
In addition, in order to increase the properties of resistance to ultraviolet rays, so-called "anti-UV" materials are introduced into the mixture, of the 2-hydroxy 4-methoxybenzophenol 5-sulfuric acid type in small proportion. The mixing of these different entities takes place in the co-extrusion hopper with concentric die and internal cooling, in the presence of EVA
A film (10) is obtained which, after cooling and cutting, has the structure symbolized in FIG. 1. It has a thickness of 'j micrometers, and consists of two superimposed layers, co-extruded and joined, respectively
- a layer (11) about 50 micrometers thick made of low density polyethylene,
- And a layer (12) of about 15 micrometers thick corresponding to the adhesive material.
Du fait de la co-extrusion, les deux couches superposées (11) et (12) adhèrent fermement 1' une à l'autre . Le film (10) obtenu est auto - adhésif et , de plus , il est enlevable de la surface protégée, sans laisser de traces sur la dite'surface . De plus, de par son mode de réalisation et des produits entrant dans sa composition, il n'existe plus aucun agent corrosif, susceptible d'attaquer la surface à protéger
EXEMPLE 2
On répète l'exemple 1 , en diminuant la proportion de butyle dans le second mélange maitre à 20 %.Le matériau composite obtenu, de structure analogue à celui de l'exemple 1, présente des qualités adhésives amoindries,mais néanmoins suffisantes pour la protection de surfaces telles que des aciers très polis
EXEMPLE 3
On répète l'exmple 1 , dans lequel on remplace les résines collantes synthétiques , par des résines collantes naturelles terpèniques hydrogénées, et ce dans les deux mélanges maîtres . Le matériau composite obtenu de même structure que celui de l'exemple 1, présente des propriétés sensiblement identiques à ce dernier .Les proportions des différents produits entrant dans la composition de la masse adhésive sont les suivantes
EVA , 44,75 %
Caoutchouc butyle .................. 25 %
Résine collante terpènique ......... 30 %
Anti-UV ............................ 0,25 %
Si dans les exemples décrits, on a fait appel à une filière concentrique de co-extrusion, on peut également utiliser une filière plate avec tirage et bobinage conventionnels du film
Les films de protection préparés conformément à l'invention présentent de nombreux avantages, notamment: :
- une meilleure résistance aux agents atmosphériques tels que l'eau, les ultra-violets et la lumière
- une grande simplicité de fabrication,
- de nombreuses réutilisations possibles
- qualité d'auto-adhésivité,
- un emboutissage possible,
- enroulement direct du film sur lui-même à la
sortie de l'extrudeuse
De ce fait, ils peuvent recevoir de nombreuses applications, en particulier, la protection des surfaces fragiles de type métallique (Inox, aluminium laqué ou anodisé) , en verre, en matière plastique ( polycarbonate , polyméthacrylate de méthylé;....),polystyrène, lamifié, stratifié, moquette.... . Due to co-extrusion, the two superimposed layers (11) and (12) adhere firmly to one another. The film (10) obtained is self-adhesive and, moreover, it can be removed from the protected surface, without leaving traces on the said surface. In addition, by its embodiment and the products used in its composition, there is no longer any corrosive agent capable of attacking the surface to be protected.
EXAMPLE 2
Example 1 is repeated, reducing the proportion of butyl in the second masterbatch to 20%. The composite material obtained, with a structure similar to that of Example 1, has reduced adhesive qualities, but nevertheless sufficient for protection. surfaces such as highly polished steels
EXAMPLE 3
Example 1 is repeated, in which the synthetic sticky resins are replaced, by natural hydrogenated terpene sticky resins, and this in the two masterbatches. The composite material obtained with the same structure as that of Example 1 has properties which are substantially identical to the latter. The proportions of the various products used in the composition of the adhesive mass are as follows
EVA, 44.75%
Butyl rubber .................. 25%
Terpene sticky resin ......... 30%
Anti-UV ............................ 0.25%
If in the examples described, use was made of a concentric co-extrusion die, it is also possible to use a flat die with conventional film drawing and winding
The protective films prepared in accordance with the invention have numerous advantages, in particular:
- better resistance to atmospheric agents such as water, ultraviolet and light
- great simplicity of manufacture,
- many possible re-uses
- quality of self-adhesive,
- possible stamping,
- direct winding of the film on itself at the
extruder outlet
Therefore, they can receive many applications, in particular, the protection of fragile surfaces of metallic type (stainless steel, lacquered or anodized aluminum), glass, plastic (polycarbonate, polymethyl methacrylate; ....), polystyrene, laminate, laminate, carpet .....
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8609867A FR2600981B3 (en) | 1986-07-03 | 1986-07-03 | FLEXIBLE SELF-ADHESIVE TEMPORARY PROTECTION FILM AND MANUFACTURING METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8609867A FR2600981B3 (en) | 1986-07-03 | 1986-07-03 | FLEXIBLE SELF-ADHESIVE TEMPORARY PROTECTION FILM AND MANUFACTURING METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2600981A3 true FR2600981A3 (en) | 1988-01-08 |
| FR2600981B3 FR2600981B3 (en) | 1988-08-05 |
Family
ID=9337162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8609867A Expired FR2600981B3 (en) | 1986-07-03 | 1986-07-03 | FLEXIBLE SELF-ADHESIVE TEMPORARY PROTECTION FILM AND MANUFACTURING METHOD |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2600981B3 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0493590A4 (en) * | 1990-07-19 | 1993-02-10 | Avery Dennison Corporation | Cohesive tape system |
| WO1993007228A1 (en) * | 1991-10-01 | 1993-04-15 | Minnesota Mining And Manufacturing Company | Coextruded pressure-sensitive adhesive tape and method of making |
| FR2700551A1 (en) * | 1993-01-18 | 1994-07-22 | Novacel Sa | Pressure-sensitive adhesive film for the protection of materials, method of production and adhesive composition |
| FR2703625A1 (en) * | 1993-04-06 | 1994-10-14 | Roehm Gmbh | Self-adhesive protective sheets with multiple layers. |
| EP0661364A3 (en) * | 1993-12-28 | 1996-07-10 | Mitsui Petrochemical Ind | Films for surface protection. |
| WO1996038302A1 (en) * | 1995-06-02 | 1996-12-05 | The Dow Chemical Company | Protective coating for metal surfaces |
| US5589122A (en) * | 1991-10-01 | 1996-12-31 | Minnesota Mining And Manufacturing Company | Method of making double-sided pressure-sensitive adhesive tape |
| WO2003039860A1 (en) * | 2001-10-22 | 2003-05-15 | Exxonmobil Chemical Patents Inc. | Protective films |
| FR2868728A1 (en) * | 2004-04-08 | 2005-10-14 | Arkema Sa | METHOD OF PROTECTING THERMOPLASTIC PLATES |
| US7323239B2 (en) | 2001-10-22 | 2008-01-29 | Exxonmobil Chemical Patents Inc. | Protective films |
| US7495048B2 (en) | 2002-10-09 | 2009-02-24 | Exxonmobil Chemical Patents Inc. | Heat sealable compositions and uses thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532220A1 (en) * | 1995-09-01 | 1997-03-06 | Beiersdorf Ag | Self-adhesive protective film |
-
1986
- 1986-07-03 FR FR8609867A patent/FR2600981B3/en not_active Expired
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0493590A4 (en) * | 1990-07-19 | 1993-02-10 | Avery Dennison Corporation | Cohesive tape system |
| US5660922A (en) * | 1991-10-01 | 1997-08-26 | Minnesota Mining And Manufacturing Company | Coextruded pressure-sensitive adhesive tape and method of making |
| WO1993007228A1 (en) * | 1991-10-01 | 1993-04-15 | Minnesota Mining And Manufacturing Company | Coextruded pressure-sensitive adhesive tape and method of making |
| US5589122A (en) * | 1991-10-01 | 1996-12-31 | Minnesota Mining And Manufacturing Company | Method of making double-sided pressure-sensitive adhesive tape |
| US5599602A (en) * | 1991-10-01 | 1997-02-04 | Minnesota Mining And Manufacturing Company | Double-sided pressure-sensitive adhesive tape and method of making |
| FR2700551A1 (en) * | 1993-01-18 | 1994-07-22 | Novacel Sa | Pressure-sensitive adhesive film for the protection of materials, method of production and adhesive composition |
| EP0608175A1 (en) * | 1993-01-18 | 1994-07-27 | Novacel | Protective pressure sensitive adhesive film and adhesive composition |
| FR2703625A1 (en) * | 1993-04-06 | 1994-10-14 | Roehm Gmbh | Self-adhesive protective sheets with multiple layers. |
| BE1008856A3 (en) * | 1993-04-06 | 1996-08-06 | Roehm Gmbh | Protection sheet surface multi-layer, self-adhesive and use. |
| ES2092952A1 (en) * | 1993-04-06 | 1996-12-01 | Roehm Gmbh | Multi-layer protection film |
| EP0661364A3 (en) * | 1993-12-28 | 1996-07-10 | Mitsui Petrochemical Ind | Films for surface protection. |
| WO1996038302A1 (en) * | 1995-06-02 | 1996-12-05 | The Dow Chemical Company | Protective coating for metal surfaces |
| AU702256B2 (en) * | 1995-06-02 | 1999-02-18 | Dow Chemical Company, The | Protective coating for metal surfaces |
| WO2003039860A1 (en) * | 2001-10-22 | 2003-05-15 | Exxonmobil Chemical Patents Inc. | Protective films |
| US7323239B2 (en) | 2001-10-22 | 2008-01-29 | Exxonmobil Chemical Patents Inc. | Protective films |
| US7495048B2 (en) | 2002-10-09 | 2009-02-24 | Exxonmobil Chemical Patents Inc. | Heat sealable compositions and uses thereof |
| FR2868728A1 (en) * | 2004-04-08 | 2005-10-14 | Arkema Sa | METHOD OF PROTECTING THERMOPLASTIC PLATES |
| WO2005102692A1 (en) * | 2004-04-08 | 2005-11-03 | Arkema France | Method for the protection of thermoplastic plates |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2600981B3 (en) | 1988-08-05 |
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