Patent US4774112A successfully refreshed from Google Patents.
US4774112A
Expired / Lapsed
US
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Use of silicone masses to prevent the formation of ice on substrates
Assignee: Bayer AG
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Filing: 1986-11-10
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Granted: 1988-09-27
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Expires: 2006-11-10
Abstract
Abstract A method of minimizing the adherence of ice on substrates which comprises coating said substrates with a polysiloxane composition which changes into a rubbery elastic material in the presence of water or atmospheric moisture which comprises alpha , omega -dihydroxy-polydiorganosiloxane having a viscosity of about 500 to 2,000,000 centipoise at 20 DEG C. and a cross-linking agent with or without a hardening catalyst.
Inventors
- 👤 Theo Achtenberg
- 👤 Hans Sattlegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:35
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09D; C09D183/00; C09D183/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
73 words
A method of minimizing the adherence of ice on substrates which comprises coating said substrates with a polysiloxane composition which changes into a rubbery elastic material in the presence of water or atmospheric moisture which comprises α,ω-dihydroxy-polydiorgano-siloxane having a viscosity of about 500 to 2,000,000 centipoise at 20° C. and a cross-linking agent with or without a hardening catalyst, wherein the substrate is coated with the polysiloxane composition diluted with a water-free solvent.
Claim 2
Independent Claim
73 words
A method of minimizing the adherence of ice on substrates which comprises coating said substrates with a polysiloxane composition which changes into a rubbery elastic material in the presence of water or atmospheric moisture which comprises α,ω-dihydroxy-polydiorgano-siloxane having a viscosity of about 500 to 2,000,000 centipoise at 20° C. and a cross-linking agent with or without a hardening catalyst, wherein the substrate is coated with the polysiloxane composition diluted with a water-free solvent.
Claim 3
Dependent Claim
12 words
The method according to claim 1, wherein the water-free solvent is hydrocarbon.
References Cited (Backward Citations)
DE3323909A1
Cited
US4554187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |