US5368315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-stick automotive gaskets
Assignee: Wacker Chemical Corp
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Filing: 1992-12-28
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Granted: 1994-11-29
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Expires: 2012-12-28
Abstract
Abstract A non-stick automotive gasket which comprises a resilient material having a polymeric fluorocarbon coating thereon which is obtained by impregnating the resilient material with a saturant having dispersed therein polymeric fluorocarbon particles.
Inventors
- 👤 George J. Viksne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:11
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1006; C09K3/1009; C09K3/1018; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/104; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S277/945
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
88 words
A non-stick automotive gasket, which comprises; A. a resilient material and B. a polymeric fluorocarbon coating formed by a dispersion, consisting of: i. a saturant, wherein the saturant is a silicone composition in which polymeric fluorocarbon particles can be dispersed, ii. from 0.5 to 50% by weight:, based on the weight of the dispersion of said polymeric fluorocarbon particles having an average diameter of from 0.1 to 800 μm and iii. from 0 to 60% by weight based on the weight of the dispersion coating of a filler.
Claim 2
Dependent Claim
88 words
A non-stick automotive gasket, which comprises; A. a resilient material and B. a polymeric fluorocarbon coating formed by a dispersion, consisting of: i. a saturant, wherein the saturant is a silicone composition in which polymeric fluorocarbon particles can be dispersed, ii. from 0.5 to 50% by weight:, based on the weight of the dispersion of said polymeric fluorocarbon particles having an average diameter of from 0.1 to 800 μm and iii. from 0 to 60% by weight based on the weight of the dispersion coating of a filler.
Claim 3
Dependent Claim
24 words
The gasket of claim 1, wherein the saturant is a silicone composition having a viscosity of from 5 to 100,000 mPa.s at 25° C.
Claim 4
Dependent Claim
13 words
The gasket of claim 2, wherein the silicone composition is a silicone fluid.
Claim 5
Dependent Claim
19 words
The gasket of claim 2, wherein the silicone composition contains an organopolysiloxane fluid which is capable of being crosslinked.
Claim 6
Dependent Claim
17 words
The gasket of claim 2, wherein the silicone composition contains an organopolysiloxane having terminal Si-bonded hydroxyl groups.
Claim 7
Dependent Claim
22 words
The gasket of claim 2, wherein the silicone composition contains an organopolysiloxane having Si-bonded aliphatic unsaturation, an organohydrogenpolysiloxane having Si-bonded hydrogen groups.
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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) | 1997-11-28 | 1998-05-30 | 1998-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-28 | 2002-05-30 | 2002-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-28 | 2006-05-30 | 2006-11-29 | $7700.00 | Window Closed / Lapsed |