Patent US5700532A successfully refreshed from Google Patents.
US5700532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable silicone coated fabric without adhesion promoter
Assignee: Highland Industries Inc
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Filing: 1995-11-17
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Granted: 1997-12-23
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Expires: 2015-11-17
Abstract
Abstract A silicone rubber composition that is capable of adhering to the surface of various kinds of substrates, in particular woven fabrics or the like in the absence of an adhesion promoter or coupling agent. The composition of the present invention includes a dual catalyst system which enhances the cure rate of the silicone compound. Strong adhesion of the silicone rubber coating composition to the substrate is achieved at high coating speeds using a mixture of an organopolysiloxane, an organohydrogenpolysiloxane resin, a platinum catalyst, and a peroxide curing agent. The silicone rubber composition is particularly suitable as a coating for airbag fabrics.
Inventors
- 👤 Joseph J. Chiou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:04
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/235; D; D06; D06N; D06N3/00; D06N3/12; D06N3/128; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1362; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2893
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
165 words
A silicone coated fabric, comprising: a) a fabric substrate; and b) a layer of a silicone rubber cured and adhering to at least one surface of the fabric substrate, the rubber being a cured self-adhesive silicone rubber composition without organofunctional silane adhesion promoters, said composition comprising: i) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; ii) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; iii) a platinum curing agent; and iv) an organic peroxide curing agent.
Claim 2
Dependent Claim
165 words
A silicone coated fabric, comprising: a) a fabric substrate; and b) a layer of a silicone rubber cured and adhering to at least one surface of the fabric substrate, the rubber being a cured self-adhesive silicone rubber composition without organofunctional silane adhesion promoters, said composition comprising: i) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; ii) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; iii) a platinum curing agent; and iv) an organic peroxide curing agent.
Claim 3
Dependent Claim
15 words
The silicone coated fabric of claim 1, wherein the preferred organopolysiloxane is vinyl containing polydimethylsiloxane.
Claim 4
Dependent Claim
14 words
The silicone coated fabric of claim 1, wherein the preferred organohydrogenpolysiloxane resin is polymethylhydrogensiloxane.
Claim 5
Dependent Claim
19 words
The silicone coated fabric of claim 1, wherein the preferred platinum curing agent is H 2 PtC 16 .
Claim 6
Dependent Claim
37 words
The silicone coated fabric of claim 1, wherein the amount of the organic peroxide curing agent is in the range from about 0.1 to about 5 parts by weight per 100 parts by weight of the organopolysiloxane.
Claim 7
Dependent Claim
20 words
The silicone coated fabric of claim 1, wherein the fabric is selected from the group consisting of nylon and polyester.
Claim 8
Dependent Claim
165 words
A silicone rubber coated airbag, comprising: a) airbag fabric; and b) a layer of a silicone rubber cured and adhered to at least one surface of the airbag fabric, the rubber being a cured self-adhesive silicone rubber composition without organofunctional silane adhesion promoters, said composition comprising: i) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; ii) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; iii) a platinum curing agent; and iv) an organic peroxide curing agent.
Claim 9
Dependent Claim
165 words
A silicone rubber coated airbag, comprising: a) airbag fabric; and b) a layer of a silicone rubber cured and adhered to at least one surface of the airbag fabric, the rubber being a cured self-adhesive silicone rubber composition without organofunctional silane adhesion promoters, said composition comprising: i) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; ii) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; iii) a platinum curing agent; and iv) an organic peroxide curing agent.
Claim 10
Dependent Claim
17 words
The silicone rubber coated airbag of claim 7, wherein the preferred organopolysiloxane is a vinyl containing polydimethylsiloxane.
Claim 11
Dependent Claim
14 words
The silicone rubber coated airbag of claim 7, wherein the preferred organohydrogenpolysiloxane is polymethylhydrogensiloxane.
Claim 12
Dependent Claim
20 words
The silicone rubber coated airbag of claim 7, wherein the preferred platinum curing agent is H 2 PtC 16 .
Claim 13
Dependent Claim
38 words
The silicone rubber coated airbag of claim 7, wherein the amount of the organic peroxide curing agent is in the range from about 0.1 to about 5 parts by weight per 100 parts by weight of the organopolysiloxane.
Claim 14
Dependent Claim
22 words
The silicone rubber coated airbag of claim 7, wherein the airbag fabric is selected from the group consisting of nylon and polyester.
Claim 15
Independent Claim
154 words
A method of preparing airbag fabric coated with a silicone rubber, comprising the step of coating at least one surface of the airbag fabric with a composition lacking organofunctional silane adhesion promoters, said composition comprising: a) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; b) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; c) a platinum curing agent; and d) an organic peroxide curing agent.
Claim 16
Independent Claim
154 words
A method of preparing airbag fabric coated with a silicone rubber, comprising the step of coating at least one surface of the airbag fabric with a composition lacking organofunctional silane adhesion promoters, said composition comprising: a) 100 parts by weight of an organopolysiloxane represented by the general formula R.sub.n SiO.sub.(4-n)/2 wherein R is an unsubstituted or substituted monovalent hydrocarbon group and n is a positive number in the range from about 1.98 to 2.01, and having a viscosity of at least 300 centistokes at 25° C.; b) about 0.1 to about 20 parts by weight of an organohydrogenpolysiloxane resin having the general formula M'Q wherein M' is R 2 SiHO 0 .5, R is a monovalent hydrocarbon radical selected from the group consisting of lower alkyl and aryl radicals, and the group denoted by Q is SiO 2 , a tetrafunctional unit; c) a platinum curing agent; and d) an organic peroxide curing agent.
Claim 17
Dependent Claim
14 words
The method of claim 13, wherein the preferred organopolysiloxane is a vinyl containing polydimethylsiloxane.
Claim 18
Dependent Claim
11 words
The method of claim 13, wherein the preferred organohydrogenpolysiloxane is polymethylhydrogensiloxane.
Claim 19
Dependent Claim
17 words
The method of claim 13, wherein the preferred platinum curing agent is H 2 PtC 16 .
Claim 20
Dependent Claim
35 words
The method of claim 13, wherein the amount of the organic peroxide curing agent is in the range from about 0.1 to about 5 parts by weight per 100 parts by weight of the organopolysiloxane.
Claim 21
Dependent Claim
19 words
The method of claim 13, wherein the airbag fabric is selected from the group consisting of nylon and polyester.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |