Patent US4478895A successfully refreshed from Google Patents.
US4478895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of silicone elastomer coated cloth
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1984-01-25
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Granted: 1984-10-23
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Expires: 2004-01-25
Abstract
Abstract A method of preparing a silicone elastomer coated cloth having a surface coating of silicone resin is described. The coated cloth is elastic and pliable with a surface which has superior dirt resistance. The cloth is first coated with an addition-reaction-curing silicone elastomer composition which uses a platinum system catalyst or with an organic peroxide-curing silicone elastomer composition. The uncured elastomer layer is then coated with a silicone resin composition of the addition-reaction-curing type which uses a platinum system catalyst and has a molar ratio of organic groups to silicon atoms of 0.8 to 1.8. The silicone elastomer composition layer and the silicone resin composition layer are then heat cured simultaneously.
Inventors
- 👤 Ryuzo Makami
- 👤 Akito Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; D06N; D06N3/00; D06N3/0056; D06N3/0063; D06N3/12; D06N3/128; C08J2383/00; C08J2383/04; D06N2205/00; D06N2205/20
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
104 words
A method of manufacturing a silicone elastomer-coated cloth having a layer of silicone resin over silicone elastomer consisting essentially of coating a cloth with silicone elastomer composition of a type selected from the group consisting of an addition-reaction-curing type using a platinum catalyst and an organic peroxide-curing type, after which a silicone resin composition of the addition-reaction-curing type using a platinum catalyst and having a molar ratio of organic groups to silicon atoms of 0.8 to 1.8 is coated over the surface of the silicone elastomer composition and then the said silicone elastomer composition and the said silicone resin composition are simultaneously heat cured.
Claim 2
Independent Claim
104 words
A method of manufacturing a silicone elastomer-coated cloth having a layer of silicone resin over silicone elastomer consisting essentially of coating a cloth with silicone elastomer composition of a type selected from the group consisting of an addition-reaction-curing type using a platinum catalyst and an organic peroxide-curing type, after which a silicone resin composition of the addition-reaction-curing type using a platinum catalyst and having a molar ratio of organic groups to silicon atoms of 0.8 to 1.8 is coated over the surface of the silicone elastomer composition and then the said silicone elastomer composition and the said silicone resin composition are simultaneously heat cured.
Claim 3
Dependent Claim
17 words
The method of claim 1 in which the cloth is coated with an addition-reaction-curing silicone elastomer composition.
Claim 4
Dependent Claim
18 words
The method of claim 1 in which the cloth is coated with an organic peroxide-curing silicone elastomer composition.
Claim 5
Dependent Claim
26 words
The method of claim 2 in which the silicone resin composition has a molar ratio of organic groups to silicon atoms of from 1.2 to 1.7.
Claim 6
Dependent Claim
26 words
The method of claim 3 in which the silicone resin composition has a molar ratio of organic groups to silicon atoms of from 1.2 to 1.7.
Claim 7
Dependent Claim
14 words
The method of claim 1 in which the cloth is made of glass fibers.
Claim 8
Dependent Claim
15 words
The method of claim 1 in which the cloth is made of polyethylene terephthalate fibers.
Claim 9
Dependent Claim
14 words
The method of claim 1 in which the cloth is made of carbon fibers.
Claim 10
Dependent Claim
14 words
The method of claim 4 in which the cloth is made of glass fibers.
Claim 11
Dependent Claim
14 words
The method of claim 5 in which the cloth is made of glass fibers.
Claim 12
Dependent Claim
20 words
The method of claim 1 in which the cured silicone resin has a thickness of between 0.5 and 300 micrometers.
Claim 13
Dependent Claim
20 words
The method of claim 1 in which the cured silicone resin has a thickness of between 10 and 100 micrometers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |