Patent US950507A successfully refreshed from Google Patents.
US5618878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen silsesquioxane resin coating composition
Assignee: Dow Silicones Corp
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Filing: 1995-04-07
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Granted: 1997-04-08
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Expires: 2015-04-07
Abstract
Abstract Disclosed are coating compositions which include hydrogen silsesquioxane resin dissolved in saturated alkyl hydrocarbons. The compositions are useful for forming coatings which are thick and/or have good coating quality.
Inventors
- 👤 Cecelia M. Syktich
- 👤 Gary A. Vincent
- 👤 Kristen A. Scheibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:14
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/092; C09; C09D; C09D183/00; C09D183/04; C08J2383/00; C08J2383/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
46 words
A coating composition comprising: between about 10 and about 40 weight percent hydrogen silsesquioxane resin diluted in a solvent comprising up to about 25 weight percent decane, between about 10 and about 35 weight percent iso-octane and between about 65 and about 90 weight percent octane.
Claim 2
Dependent Claim
46 words
A coating composition comprising: between about 10 and about 40 weight percent hydrogen silsesquioxane resin diluted in a solvent comprising up to about 25 weight percent decane, between about 10 and about 35 weight percent iso-octane and between about 65 and about 90 weight percent octane.
Claim 3
Dependent Claim
33 words
The coating composition of claim 1 wherein the hydrogen silsesquioxane resin contains polymeric species such that at least 75% of the polymeric species have a molecular weight between about 1200 and about 100,000.
Claim 4
Dependent Claim
37 words
The coating composition of claim 1 also containing a platinum, rhodium or copper catalyst in an amount of between about 5 and about 1000 ppm platinum, rhodium or copper based on the weight of hydrogen silsesquioxane resin.
Claim 5
Dependent Claim
24 words
The coating composition of claim 1 wherein the hydrogen silsesquioxane resin is present in an amount between about 15 and about 30 weight percent.
Claim 6
Dependent Claim
36 words
The coating composition of claim 1 wherein the solvent contains between about 10 and about 25 weight percent iso-octane, between about 65 and about 85 weight percent octane and up to about 25 weight percent decane.
Claim 7
Dependent Claim
44 words
A coating composition comprising: between about 10 and about 40 weight percent hydrogen silsesquioxane resin diluted in a solvent comprising between about 60 and about 80 weight percent iso-octane, up to about 40 weight percent octane and up to about 40 weight percent decane.
Claim 8
Dependent Claim
44 words
A coating composition comprising: between about 10 and about 40 weight percent hydrogen silsesquioxane resin diluted in a solvent comprising between about 60 and about 80 weight percent iso-octane, up to about 40 weight percent octane and up to about 40 weight percent decane.
Claim 9
Dependent Claim
33 words
The coating composition of claim 6 wherein the hydrogen silsesquioxane resin contains polymeric species such that at least 75% of the polymeric species have a molecular weight between about 1200 and about 100,000.
Claim 10
Dependent Claim
37 words
The coating composition of claim 6 also containing a platinum, rhodium or copper catalyst in an amount of between about 5 and about 1000 ppm platinum, rhodium or copper based on the weight of hydrogen silsesquioxane resin.
Claim 11
Dependent Claim
24 words
The coating composition of claim 6 wherein the hydrogen silsesquioxane resin is present in an amount between about 15 and about 30 weight percent.
Claim 12
Dependent Claim
36 words
The coating composition of claim 6 wherein the solvent contains between about 65 and about 75 weight percent iso-octane, between about 10 and about 30 weight percent decane and up to about 25 weight percent octane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-07 | 2000-10-07 | 2001-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-07 | 2004-10-07 | 2005-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-07 | 2008-10-07 | 2009-04-08 | $7700.00 | Window Closed / Lapsed |