EP0229331B1 - Electrically insulating and fire-resistant adhesive mica tape, particularly for electrical cables or optical fibres - Google Patents
Electrically insulating and fire-resistant adhesive mica tape, particularly for electrical cables or optical fibres Download PDFInfo
- Publication number
- EP0229331B1 EP0229331B1 EP86117275A EP86117275A EP0229331B1 EP 0229331 B1 EP0229331 B1 EP 0229331B1 EP 86117275 A EP86117275 A EP 86117275A EP 86117275 A EP86117275 A EP 86117275A EP 0229331 B1 EP0229331 B1 EP 0229331B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mica
- face
- tape according
- layer
- sheet
- 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.)
- Expired - Lifetime
Links
- 239000010445 mica Substances 0.000 title claims abstract description 33
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 title claims abstract description 15
- 230000009970 fire resistant effect Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 10
- -1 polysiloxane Polymers 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229920001059 synthetic polymer Polymers 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 229910052628 phlogopite Inorganic materials 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052627 muscovite Inorganic materials 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims 2
- 229920002050 silicone resin Polymers 0.000 abstract description 3
- 239000002390 adhesive tape Substances 0.000 abstract description 2
- 210000001519 tissue Anatomy 0.000 description 4
- 241001639412 Verres Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- QYFRTHZXAGSYGT-UHFFFAOYSA-L hexaaluminum dipotassium dioxosilane oxygen(2-) difluoride hydrate Chemical compound O.[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O QYFRTHZXAGSYGT-UHFFFAOYSA-L 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
-
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/251—Mica
-
- 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
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
-
- 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]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
-
- 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]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3927—Including a paper or wood pulp layer
- Y10T442/3935—Mica paper layer
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/50—FELT FABRIC
- Y10T442/56—From synthetic organic fiber
Definitions
- the present invention relates to a micaceous electrical insulating and anti-adhesive fire tape, in particular for an electrical or optical fiber cable, comprising: a) a first layer of mica paper sheet, this layer comprising a first side and a second side, b) a reinforcement disposed on the first side of the first layer, c) a binder solidifying the reinforcement sill with the first side of the first layer, this binder comprising a polysiloxane resin added with a curing catalyst, and d) an adhesive layer connected to the second side of the first layer.
- Document FR-A-1 532 716 describes an electrical insulating tape comprising a layer of mica bonded by one of its sides to a support such as a woven, knitted or felted fabric or a polymer film using a dimethylpolysiloxane resin added with a curing catalyst.
- the other side of the mica layer can also be provided with a layer of the same resin with the addition of catalyst, then the whole is hardened by heating.
- Document FR-A-1 333 417 describes a strip of vulcanized mica on a support formed by a glass cloth using a silicone rubber added with a catalyst.
- Document FR-A-2 188 258 describes the bonding of a mica paper to a support formed of glass strands using an adhesive formed by a mixture of dimethylpolysiloxane resin with silanol end groups and a silicone resin , then bonding to the mica paper thus reinforced with a polyamide film using the same adhesive, the curing of the adhesive being obtained by passage through an oven.
- the object of the present invention is to provide an adhesive tape on the side of the mica paper, the adhesive power of which is preserved for a very long period, which can be affixed at any time on very diverse substrates, and which is moreover sensitive to pressure, so that a simple contact without pressure does not cause sticking, but which ensures an energetic sticking as soon as a pressure is exerted between the tape and the surface on which we must paste.
- the insulating micaceous tape according to the invention is characterized in that its adhesive layer comprises an adhesive pressure-sensitive coating, formed by a curable polysiloxane resin devoid of curing catalyst, and capable of retaining its adhesiveness for a very long period.
- a chain title such as E.c.5-5,5 means a chain formed of glass strands E, obtained by the spinning mode C, into 5.5 tex threads of 5 micron diameter.
- a sheet of phlogopite mica paper at l2Og / m2 is laminated with a binder of methyl-polysiloxane synthetic resin added with 2% by weight of cobalt naphthenate, as hardening catalyst, on a glass fabric of grammage 33g / m2, the paper mica being coated with the same synthetic resin, but devoid of hardening additive.
- the glass fabric can be replaced by a chain formed from 5 to 12 strands per cm, made of glass thread of 5.5 to 68 tex, of diameter 5 to 9 microns, arranged parallel in the direction of the unwinding of the ribbon on a synthetic polymer film, especially polyester.
- a sheet of phlogopite mica paper at 80 g / m2 is laminated with a binder of methyl polysiloxane resin, added with 2% by weight of cobalt naphthenate hardener, on a polyester film, in particular of polyethylene terephthalate glycol, 12 microns thick, the mica paper being coated with the same synthetic resin without hardener additive.
- a 75g / m2 sheet of muscovite mica paper is laminated with a binder of methyl-polysiloxane resin, added with 2% by weight of cobalt naphthenate, between two polyester films 12 microns thick, one of these two films, intended to be placed on the side of the sheath of the cable to be protected, being coated with the same methylpolysiloxane resin without hardening additive.
- the adhesive may be, instead of a silicone resin, a glass fabric, a chain of strands of glass son or a film, a fabric or a felt of synthetic polymer, of the same kind as the reinforcing sheet mentioned above, and provided on both sides with an adhesive resin, with the addition of a catalyst on the side of the micaceous paper sheet.
- the electrical insulating and fire-retardant adhesive micaceous tape is particularly suitable for the insulation of electric or fiber optic conductors, it is also applicable to the insulation of other surfaces which it is desired to protect against fire in electrical engineering. , especially in transformers.
Landscapes
- Insulated Conductors (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Inorganic Insulating Materials (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
- Photoreceptors In Electrophotography (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polarising Elements (AREA)
- Communication Cables (AREA)
- Cable Accessories (AREA)
Abstract
Description
La présente invention concerne un ruban micacé isolant électrique et anti-feu adnésif, notamment pour câble électrique ou à fibres optiques, comprenant :
a) une première couche feuille de papier mica, cette couche comportant un premier côté et un second côté,
b) une de renforcement disposée sur le premier côté de la première couche,
c) un liant solidarisant la senille de renforcement avec le premier côté de la première couche, ce liant comprenant une résine polysiloxanne additionnée d'un catalyseur de durcissement,
et d) une couche adhésive reliée au second côté de la première couche.The present invention relates to a micaceous electrical insulating and anti-adhesive fire tape, in particular for an electrical or optical fiber cable, comprising:
a) a first layer of mica paper sheet, this layer comprising a first side and a second side,
b) a reinforcement disposed on the first side of the first layer,
c) a binder solidifying the reinforcement sill with the first side of the first layer, this binder comprising a polysiloxane resin added with a curing catalyst,
and d) an adhesive layer connected to the second side of the first layer.
Le document FR-A-1 532 716 décrit un ruban isolant électrique comprenant une couche de mica collée par un de ses côtés sur un support tel qu'un tissu tissé, tricoté ou feutré ou une pellicule de polymère à l'aide d'une résine diméthylpolysiloxanne additionnée d'un catalyseur de durcissement. L'autre côté de la couche de mica peut être muni également d'une couche de la même résine additionnée de catalyseur, puis l'ensemble est durci par chauffage.Document FR-A-1 532 716 describes an electrical insulating tape comprising a layer of mica bonded by one of its sides to a support such as a woven, knitted or felted fabric or a polymer film using a dimethylpolysiloxane resin added with a curing catalyst. The other side of the mica layer can also be provided with a layer of the same resin with the addition of catalyst, then the whole is hardened by heating.
Le document FR-A-1 333 417 décrit une bande de mica vulcanisée sur un support formé par un tissu de verre à l'aide d'un caoutchouc silicone additionné d'un catalyseur.Document FR-A-1 333 417 describes a strip of vulcanized mica on a support formed by a glass cloth using a silicone rubber added with a catalyst.
Le document FR-A-2 188 258 décrit le collage d'un papier mica à un support formé de fils de verre à l'aide d'un adhésif formé par un mélange de résine diméthylpolysiloxanne à groupes terminaux silanols et d'une résine silicone, puis le collage sur le papier de mica ainsi renforcé d'un film de polyamide à l'aide du même adhésif, le durcissement de l'adhésif étant obtenu par passage dans un four.Document FR-A-2 188 258 describes the bonding of a mica paper to a support formed of glass strands using an adhesive formed by a mixture of dimethylpolysiloxane resin with silanol end groups and a silicone resin , then bonding to the mica paper thus reinforced with a polyamide film using the same adhesive, the curing of the adhesive being obtained by passage through an oven.
Tous ces documents concernent des rubans donc aucune des faces n'a de propriété adhésive, sous forme d'un revêtement dont le pouvoir adhésif puisse se maintenir pendant une très longue période.All these documents relate to tapes, therefore none of the faces has any adhesive property, in the form of a coating whose adhesive power can be maintained for a very long period.
La présente invention a pour but de procurer un ruban adhésif du côté du papier de mica dont le pouvoir adhésif se conserve pendant une très longue période, que l'on puisse coller à tout moment sur des substrats très divers, et qui soit par ailleurs sensibles à la pression, de sorte qu'un simple contact sans pression ne provoque pas le collage, mais qui assure un collage énergique dès que l'on exerce une pression entre le ruban et la surface sur laquelle on doit le coller.The object of the present invention is to provide an adhesive tape on the side of the mica paper, the adhesive power of which is preserved for a very long period, which can be affixed at any time on very diverse substrates, and which is moreover sensitive to pressure, so that a simple contact without pressure does not cause sticking, but which ensures an energetic sticking as soon as a pressure is exerted between the tape and the surface on which we must paste.
Le ruban micacé isolant selon l'invention est caractérisé en ce que sa couche adhésive comprend un revêtement adhésif sensible à la pression, formé par une résine polysiloxanne durcissable démunie de catalyseur de durcissement, et susceptible de conserver son adhésivité pendant une très longue période.The insulating micaceous tape according to the invention is characterized in that its adhesive layer comprises an adhesive pressure-sensitive coating, formed by a curable polysiloxane resin devoid of curing catalyst, and capable of retaining its adhesiveness for a very long period.
Il répond en outre de préférence à au moins l'une des caractéristiques suivantes :
- La résine polysiloxanne est une résine méthyl-polysiloxanne.
- La feuille de renforcement est un tissu de verre de grammage compris entre 15 et 9O/m².
- La feuille de renforcement est une chaîne comprenant 5 à 12 torons au cm² et de titre E.C.5-5 à E.C.9-68.
- La feuille de renforcement est constituée par un film, un tissu ou un feutre en polymère synthétique.
- Le polymère synthétique est un polyester, un polyimide, un polyamide ou un polycarbonate et le polytétrafluoréthylène.
- La feuille de papier mica est en mica muscovite ou phlogopite, de préférence de grammage 45g/m² à 200g/m².
- La feuille de papier mica est recouverte sur ses deux faces d'une feuille de renforcement₇ l'une seule de ces deux feuilles étant munie d'une résine adhésive.
- L'adhésif est un tissu de verre de grammage compris entre 15 et 90g/m², une chaîne comprenant 5 à 12 torons au cm² de fils de verre de titre E.C.5-5,5 à E.C.9-68, ou un film, un tissu ou un feutre de polymère synthétique enduits sur l'une de leurs faces d'une résine adhésive, et sur l'autre face d'un agglomérant avec la feuille de papier micacé.
- The polysiloxane resin is a methyl-polysiloxane resin.
- The reinforcing sheet is a glass fabric of grammage between 15 and 9O / m².
- The reinforcing sheet is a chain comprising 5 to 12 strands per cm² and of title EC5-5 to EC9-68.
- The reinforcing sheet consists of a film, a fabric or a felt made of synthetic polymer.
- The synthetic polymer is a polyester, a polyimide, a polyamide or a polycarbonate and polytetrafluoroethylene.
- The sheet of mica paper is made of muscovite or phlogopite mica, preferably of grammage 45g / m² to 200g / m².
- The sheet of mica paper is covered on both sides with a reinforcing sheet ₇ only one of these two sheets being provided with an adhesive resin.
- The adhesive is a glass fabric with a grammage of between 15 and 90 g / m², a chain comprising 5 to 12 strands per cm² of glass strands of title EC5-5.5 to EC9-68, or a film, fabric or a synthetic polymer felt coated on one side with an adhesive resin, and on the other side with a binder with the sheet of micaceous paper.
Un titre de chaîne tel que E.c.5-5,5 signifie une chaîne formée de torons en verre E, obtenue par le mode de filature C, en fils 5,5 tex de diamètre 5 microns.A chain title such as E.c.5-5,5 means a chain formed of glass strands E, obtained by the spinning mode C, into 5.5 tex threads of 5 micron diameter.
Il est décrit ci-après à titre d'exemple trois rubans micacés isolants électriques selon l'invention pour protection contre le feu de câbles électriques.There are described below by way of example three micaceous electrical insulating tapes according to the invention for fire protection of electric cables.
Une feuille de papier mica phlogopite à l2Og/m² est contrecollée par un liant en résine synthétique méthyl-polysiloxanne additionné de 2% en poids de naphténate de cobalt, comme catalyseur de durcissement, sur un tissu de verre de grammage 33g/m² , le papier mica étant surlaqué par la même résine synthétique, mais dépourvue d'additif de durcissement.A sheet of phlogopite mica paper at l2Og / m² is laminated with a binder of methyl-polysiloxane synthetic resin added with 2% by weight of cobalt naphthenate, as hardening catalyst, on a glass fabric of grammage 33g / m², the paper mica being coated with the same synthetic resin, but devoid of hardening additive.
Le tissu de verre peut être remplacé par une chaîne formée de 5 à 12 torons par cm, en fil de verre de titre 5,5 à 68 tex, de diametre 5 à 9 microns, disposés parallèlement dans le sens du déroulement du ruban sur un film de polymère synthétique, notamment de polyester.The glass fabric can be replaced by a chain formed from 5 to 12 strands per cm, made of glass thread of 5.5 to 68 tex, of diameter 5 to 9 microns, arranged parallel in the direction of the unwinding of the ribbon on a synthetic polymer film, especially polyester.
Une feuille de papier mica phlogopite à 80g/m² est contrecollée par un liant en résine méthyl-polysiloxanne, additionnée de 2% en poids de durcisseur naphténate de cobalt, sur un film de polyester, notamment de poly-téréphtalate d'éthylène glycol, de 12 microns d'épaisseur, le papier mica étant surlaqué par la même résine synthétique sans additif durcisseur.A sheet of phlogopite mica paper at 80 g / m² is laminated with a binder of methyl polysiloxane resin, added with 2% by weight of cobalt naphthenate hardener, on a polyester film, in particular of polyethylene terephthalate glycol, 12 microns thick, the mica paper being coated with the same synthetic resin without hardener additive.
Une feuille de papier mica muscovite à 75g/m² est contrecollée par un liant en résine méthyl-polysiloxanne, additionné de 2% en poids de naphténate de cobalt, entre deux films de polyester de 12 microns d'épaisseur, l'un de ces deux films, destiné à être disposé du côté de la gaine du câble à protéger, étant surlaqué par la même résine méthylpolysiloxanne sans additif durcisseur.A 75g / m² sheet of muscovite mica paper is laminated with a binder of methyl-polysiloxane resin, added with 2% by weight of cobalt naphthenate, between two polyester films 12 microns thick, one of these two films, intended to be placed on the side of the sheath of the cable to be protected, being coated with the same methylpolysiloxane resin without hardening additive.
Comme déjà indiqué ci-dessus l'adhésif peut être, au lieu d'une résine silicone, un tissu de verre, une chaîne de torons de fils de verre ou un film, un tissu ou un feutre de polmère synthétique, de même nature que la feuille de renforcement mentionnée ci-dessus, et muni sur ses deux faces d'une résine adhésive, avec adjonction d'un catalyseur du côté de la feuille de papier micacé.As already indicated above, the adhesive may be, instead of a silicone resin, a glass fabric, a chain of strands of glass son or a film, a fabric or a felt of synthetic polymer, of the same kind as the reinforcing sheet mentioned above, and provided on both sides with an adhesive resin, with the addition of a catalyst on the side of the micaceous paper sheet.
Bien que le ruban micacé isolant électrique et anti-feu adhésif convienne particulièrement bien pour l'isolation de conducteurs éloctriques ou à fibres optiques, il est applicable également à l'isolation d'autres surfaces que l'on désire protéger contre le feu en électrotechnique, notamment dans des transformateurs.Although the electrical insulating and fire-retardant adhesive micaceous tape is particularly suitable for the insulation of electric or fiber optic conductors, it is also applicable to the insulation of other surfaces which it is desired to protect against fire in electrical engineering. , especially in transformers.
Claims (9)
- An electrically insulating and fire-proof adhesive mica tape especially suitable for electrical cables and for optical fiber cable, said tape comprising:a) a first layer consisting of mica paper sheet, said layer having a first face and a second face,b) a reinforcement sheet disposed across the first face of the first layer,c) a binder for fixing `the reinforcement sheet to the first face of the first layer, said binder comprising a polysiloxane resin with a hard setting catalyst added, andd) an adhesive layer bonded to the second face of the first layer, characterized in that its adhesive layer includes an adhesive coating which is sensitive to pressure and formed by a hard setting polysiloxane resin without any hardening catalyst, and which is capable of maintaining its adhesive power for a very long period of time.
- A mica tape according to claim 1, characterized in that the polysiloxane resin is a methylpolysiloxane resin.
- A mica-coated tape according to claim 1 or 2, characterized in that the reinforcing sheet is a glass cloth of between 15 and 90 g/m² substance weight.
- A mica tape according to claim 1 or 2, characterized in that the reinforcing sheet consists of a warp of 5 to 12 strands per cm² and a yarn count of E.C. 5-5,5 to E.C. 9-68.
- A tape according to claim 1 or 2, characterized in that the reinforcing sheet consists of a film, a fabric or a felt of synthetic polymer.
- A tape according to claim 5, characterized in that the synthetic polymer is a polyester, a polyimide, a polyamide or a polycarbonate.
- A tape according to claims 1 to 6, characterized in that the mica paper sheet is of muscovite or phlogopite mica, preferably of 45 g/m² to 200 g/m² substance weight.
- A tape according to claims 1 to 7, characterized in that the mica paper sheet is fixed by its two sides to a reinforcing sheet by means of said binder, only one of said two sheets being provided on its face opposite to the mica paper with said pressure sensitive adhesive coating.
- A tape according to claims 1 to 8, characterized in that the adhesive layer is a glass cloth of between 15 and 90 g/m² substance weight, a warp comprising 5 to 12 strands per cm² of glass yarns of E.C. 5-5,5 to E.C. 9-68 count, or a film, a fabric or felt of synthetic polymer coated on their face opposite to the mica paper sheet with said pressure sensitive adhesive coating, and on their face directed to the mica paper sheet with said fixing binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT86117275T ATE62086T1 (en) | 1985-12-13 | 1986-12-11 | ELECTRICAL INSULATING AND FIREPROOF ADHESIVE MICA TAPE, PARTICULARLY FOR ELECTRICAL CABLES OR OPTICAL FIBERS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8518497 | 1985-12-13 | ||
| FR8518497A FR2591793B1 (en) | 1985-12-13 | 1985-12-13 | ELECTRICALLY INSULATING AND FIRE-RESISTANT MICACE TAPE, ESPECIALLY FOR ELECTRIC OR FIBER OPTIC CABLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0229331A1 EP0229331A1 (en) | 1987-07-22 |
| EP0229331B1 true EP0229331B1 (en) | 1991-03-27 |
Family
ID=9325767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86117275A Expired - Lifetime EP0229331B1 (en) | 1985-12-13 | 1986-12-11 | Electrically insulating and fire-resistant adhesive mica tape, particularly for electrical cables or optical fibres |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4769276A (en) |
| EP (1) | EP0229331B1 (en) |
| JP (1) | JPS62146975A (en) |
| AT (1) | ATE62086T1 (en) |
| BR (1) | BR8606429A (en) |
| CA (1) | CA1274428A (en) |
| DE (1) | DE3678417D1 (en) |
| DK (1) | DK599886A (en) |
| ES (1) | ES2021272B3 (en) |
| FI (1) | FI865087A (en) |
| FR (1) | FR2591793B1 (en) |
| GR (1) | GR3002041T3 (en) |
| NO (1) | NO175918C (en) |
| PT (1) | PT83923B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4983432A (en) * | 1987-07-30 | 1991-01-08 | E. I. Du Pont De Nemours And Company | Ethylene vinyl alcohol copolymers containing platelet-type mica fillers of multi-layer containers |
| JPH0337907A (en) * | 1989-07-03 | 1991-02-19 | Nippon Rika Kogyosho:Kk | Composite mica insulating thin-film |
| EP0586753A1 (en) * | 1992-08-25 | 1994-03-16 | Siemens Aktiengesellschaft | Insulating tape for a winding of an electrical machine |
| DE4420613C1 (en) * | 1994-06-13 | 1995-08-10 | Freudenberg Carl Fa | Burn-through barrier for aircraft fuselages |
| US5989702A (en) * | 1994-08-15 | 1999-11-23 | General Electric Canada Inc. | Sandwich insulation for increased corona resistance |
| US6103382A (en) * | 1997-03-14 | 2000-08-15 | Siemens Westinghouse Power Corporation | Catalyzed mica tapes for electrical insulation |
| DE19822137A1 (en) * | 1998-05-16 | 1999-11-18 | Asea Brown Boveri | High voltage insulated stator winding |
| EP0966001A1 (en) * | 1998-06-17 | 1999-12-22 | COMPAGNIE ROYALE ASTURIENNE DES MINES, Société Anonyme | Manufacture of a mica tape and obtained product |
| WO2001098434A1 (en) * | 2000-06-21 | 2001-12-27 | Compagnie Royale Asturienne Des Mines S.A. | Protective barrier |
| US6991845B2 (en) * | 2002-12-13 | 2006-01-31 | E. I. Du Pont De Nemours And Company | Mica sheet and tape |
| US7737359B2 (en) * | 2003-09-05 | 2010-06-15 | Newire Inc. | Electrical wire and method of fabricating the electrical wire |
| US7217884B2 (en) * | 2004-03-02 | 2007-05-15 | Southwire Company | Electrical wire and method of fabricating the electrical wire |
| US8237051B2 (en) * | 2003-09-05 | 2012-08-07 | Newire, Inc. | Flat wire extension cords and extension cord devices |
| US7145073B2 (en) * | 2003-09-05 | 2006-12-05 | Southwire Company | Electrical wire and method of fabricating the electrical wire |
| US7897528B2 (en) * | 2005-05-31 | 2011-03-01 | Mikhail Finkel | Heat resistant labels |
| US20080085388A1 (en) | 2006-09-26 | 2008-04-10 | Intertape Polymer Corp. | Filament reinforced tapes useful as underwater pipe wrap |
| DE102010019382A1 (en) | 2010-05-04 | 2011-11-10 | Airbus Operations Gmbh | Thermal insulating tape with fire protection function and its application in aircraft construction |
| CN112992442A (en) * | 2021-02-04 | 2021-06-18 | 湖北平安电工实业有限公司 | Preparation method of mica tape with fire-resistant coating |
| CN118524878A (en) * | 2021-07-22 | 2024-08-20 | 3M创新有限公司 | Composite adhesive fire barrier and methods of making and using the same |
| ES2958357A1 (en) * | 2022-07-12 | 2024-02-07 | Com Edizar S A | Dust protection for machining and handling of sheet elements |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH404749A (en) * | 1961-09-22 | 1965-12-31 | Micafil Ag | Heat-resistant insulating tape for electrical conductors |
| FR1333417A (en) * | 1962-09-11 | 1963-07-26 | Micafil Ag | High thermal stability mica sheet for insulation of electrical conductors |
| GB1193082A (en) * | 1966-07-01 | 1970-05-28 | Ici Ltd | Tapes. |
| US3539438A (en) * | 1967-06-12 | 1970-11-10 | Minnesota Mining & Mfg | Electrically insulative polymer impregnated,mica-paper tape |
| FR1532716A (en) * | 1967-06-30 | 1968-07-12 | Ici Ltd | Insulating tape |
| US3867245A (en) * | 1972-06-12 | 1975-02-18 | Gen Electric | Electrical insulation |
| JPS5681906A (en) * | 1979-12-07 | 1981-07-04 | Toshiba Corp | Heat resisting electrical insulated coil |
| US4381327A (en) * | 1980-10-06 | 1983-04-26 | Dennison Manufacturing Company | Mica-foil laminations |
| JPS57141902A (en) * | 1981-02-25 | 1982-09-02 | Mitsubishi Electric Corp | Insulating coil |
| DE3114420C2 (en) * | 1981-04-06 | 1986-05-07 | Siemens AG, 1000 Berlin und 8000 München | Electrical conductor with an insulating sleeve wound from mica tapes |
| GB2101525A (en) * | 1981-07-01 | 1983-01-19 | Malcolm Otty | Composite insulation material |
| FR2517460A1 (en) * | 1981-12-02 | 1983-06-03 | Alsthom Atlantique | GUIPAGE TAPE FOR ELEMENTARY INSULATION OF CONDUCTORS |
| AT387356B (en) * | 1982-07-27 | 1989-01-10 | Isovolta | METHOD FOR PRODUCING FILMS SUITABLE AS ELECTRICAL INSULATING MATERIAL |
| JPS6155268A (en) * | 1984-08-22 | 1986-03-19 | 帝国繊維株式会社 | Flame resistant processed cloth |
| US4603088A (en) * | 1984-10-22 | 1986-07-29 | Essex Group, Inc. | Neoalkoxy titanate in high density mica laminates |
| US4606785A (en) * | 1984-11-15 | 1986-08-19 | Westinghouse Electric Corp. | Simplified method of making high strength resin bonded mica tape |
-
1985
- 1985-12-13 FR FR8518497A patent/FR2591793B1/en not_active Expired
-
1986
- 1986-12-10 NO NO864973A patent/NO175918C/en unknown
- 1986-12-11 AT AT86117275T patent/ATE62086T1/en not_active IP Right Cessation
- 1986-12-11 EP EP86117275A patent/EP0229331B1/en not_active Expired - Lifetime
- 1986-12-11 DE DE8686117275T patent/DE3678417D1/en not_active Revoked
- 1986-12-11 ES ES86117275T patent/ES2021272B3/en not_active Expired - Lifetime
- 1986-12-12 CA CA000525217A patent/CA1274428A/en not_active Expired - Fee Related
- 1986-12-12 FI FI865087A patent/FI865087A/en not_active IP Right Cessation
- 1986-12-12 DK DK599886A patent/DK599886A/en not_active Application Discontinuation
- 1986-12-12 JP JP61296517A patent/JPS62146975A/en active Pending
- 1986-12-12 PT PT83923A patent/PT83923B/en not_active IP Right Cessation
- 1986-12-15 US US06/941,396 patent/US4769276A/en not_active Expired - Fee Related
- 1986-12-15 BR BR8606429A patent/BR8606429A/en unknown
-
1991
- 1991-06-03 GR GR91400711T patent/GR3002041T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO175918B (en) | 1994-09-19 |
| JPS62146975A (en) | 1987-06-30 |
| ATE62086T1 (en) | 1991-04-15 |
| FI865087A0 (en) | 1986-12-12 |
| FR2591793B1 (en) | 1988-08-12 |
| CA1274428A (en) | 1990-09-25 |
| DK599886D0 (en) | 1986-12-12 |
| NO864973D0 (en) | 1986-12-10 |
| FR2591793A1 (en) | 1987-06-19 |
| GR3002041T3 (en) | 1992-12-30 |
| NO864973L (en) | 1987-06-15 |
| DE3678417D1 (en) | 1991-05-02 |
| ES2021272B3 (en) | 1991-11-01 |
| NO175918C (en) | 1994-12-28 |
| DK599886A (en) | 1987-06-14 |
| EP0229331A1 (en) | 1987-07-22 |
| FI865087A (en) | 1987-06-14 |
| BR8606429A (en) | 1987-10-20 |
| PT83923B (en) | 1989-06-30 |
| US4769276A (en) | 1988-09-06 |
| PT83923A (en) | 1987-01-01 |
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