Patent EP0089162A1 successfully refreshed from Google Patents.
EP0089162A1
Expired / Lapsed
EP
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Bonding elastomers
Assignee: Polysar Ltd
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Filing: 1983-03-07
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Granted: —
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Expires: 2003-03-07
Abstract
Abstract A method of bonding a layer of a fluoroelastomer compound to a layer of a butadiene-acrylonitrile polymer compound comprises incorporating a polysulphidic silane compound into either or both compounds, prior to bonding the layers together, and vulcanising the layers in contact with each other, in which the amount of polysulphidic silane compound is from about 1 to about 5 parts by weight per 100 parts by weight of fluoroelastomer and/or butadiene-acrylonitrile polymer in the compounds. The resultant laminate may be used as a hose, the fluoroelastomer being the inner layer.
Inventors
- 👤 John Robert Dunn
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 16:27
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/16; B32B1/00; B32B1/08; B32B25/04; B32B25/08; B32B27/00; B32B27/18; B32B27/30; B32B27/302; C; C08; C08J; C08J5/00; C08J5/12; C08K; C08K5/00; C08K5/54; C08K5/548; B32B38/00; B32B2038/0052; B32B2038/0076
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A method of bonding a layer of a fluoroelastomer compound to a layer of a butadiene-acrylonitrile polymer compound, characterised in that a polysulphidic silane compound is incorporated into either or both compounds, prior to bonding the layers together, and vulcanising the layers in contact with each other, in which the amount of polysulphidic silane compound is from about 1 to about 5 parts by weight per 100 parts by weight of fluoroelastomer and/or butadiene-acrylonitrile polymer in the compounds.
Claim 2
Independent Claim
78 words
A method of bonding a layer of a fluoroelastomer compound to a layer of a butadiene-acrylonitrile polymer compound, characterised in that a polysulphidic silane compound is incorporated into either or both compounds, prior to bonding the layers together, and vulcanising the layers in contact with each other, in which the amount of polysulphidic silane compound is from about 1 to about 5 parts by weight per 100 parts by weight of fluoroelastomer and/or butadiene-acrylonitrile polymer in the compounds.
Claim 3
Dependent Claim
18 words
A method according to claim 1, in which the polysulphidic silane compound is incorporated into the fluoroelastomer compound.
Claim 4
Dependent Claim
22 words
A method according to claim 1 or claim 2, in which the polysulphidic silane compound is incorporated into the butadiene-acrylonitrile polymer compound.
Claim 5
Independent Claim
75 words
A method of bonding a layer of a fluoroelastomer compound to a layer of a butadiene-acrylonitrile polymer compound,characterised in that a polysulphidic silane compound is incorporated into both compounds, prior to bonding the layers together, and vulcanising the layers in contact with each other, in which the amount of polysulphidic silane compound is from about 1 to about 3 parts by weight per 100 parts by weight of fluoroelastomer and butadiene-acrylonitrile polymer in the compounds.
Claim 6
Independent Claim
75 words
A method of bonding a layer of a fluoroelastomer compound to a layer of a butadiene-acrylonitrile polymer compound,characterised in that a polysulphidic silane compound is incorporated into both compounds, prior to bonding the layers together, and vulcanising the layers in contact with each other, in which the amount of polysulphidic silane compound is from about 1 to about 3 parts by weight per 100 parts by weight of fluoroelastomer and butadiene-acrylonitrile polymer in the compounds.
Claim 7
Dependent Claim
25 words
A method according to any of claims 1 to 3 or claim 4, in which the butadiene-acrylonitrile polymer compound contains an organic peroxide curing agent.
Claim 8
Independent Claim
71 words
A method according to any preceding claim, in which the butadiene-acrylonitrile polymer compound comprises a butadiene-acrylonitrile polymer containing from about 20 to about 50 weight per cent of acrylonitrile, one or more fillers selected from carbon black, silica and barytes, optionally a compatible plasticiser, one or more metal oxides selected from magnesium oxide, cadmium oxide, calcium oxide and zinc oxide, one or more antioxidants, an organic peroxide and a curable coagent.
Claim 9
Independent Claim
50 words
A method according to any preceding claim, in which the fluoroelastomer compound comprises a fluoroelastomer, an incorporated cure system, one or more inorganic acid acceptors selected from magnesium oxide, cadmium oxide, calcium oxide, calciul hydroxide and zinc oxide, and one or more fillers selected from carbon black, silica and barytes.
Claim 10
Independent Claim
37 words
A method according to any preceding claim, in which the layers of the fluoroelastomer and butadiene-acrylonitrile polymer compounds are vulcanised by heating to from about 150 to about 180°C for from about 10 to about 60 minutes.
Claim 11
Independent Claim
19 words
A method according to any preceding claim, in which the polysulphidic silane compound is selected from bis[3-(triethoxysilyl)propyl]tetrasulphide and bis[(triethoxysilyl)ethyltolylene]tetrasulphide.
Claim 12
Dependent Claim
33 words
A hose assembly comprising a laminate produced by a method according to any preceding claim, in which the inner layer is the fluoroelastomer compound and the outer layer is the butadiene-acrylonitrile polymer compound.
References Cited (Backward Citations)
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