Patent US5230962A successfully refreshed from Google Patents.
US5230962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etch-resistant finishes with siloxane cross-linking
Assignee: EIDP Inc
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Filing: 1992-12-11
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Granted: 1993-07-27
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Expires: 2012-12-11
Abstract
Abstract A coating composition is disclosed comprising an acrylosilane polymer, an acrylic polyol, a polyester urethane or a copolymer thereof, an amino resin crosslinking agent, and a silsesquioxane compound. Such a composition is especially useful for providing a finish on metallic and/or non-metallic parts of automobiles and trucks. This finish has the advantage of superior etch resistance and outstanding weatherability and durability characteristics.
Inventors
- 👤 Maurice A. S. Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:30
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/14; C08; C08F; C08F8/00; C08F8/30; C08F8/42; C09D143/00; C09D143/04; C08L; C08L33/00; C08L33/04; C08L33/14; C08L43/00; C08L43/04; C08L61/00; C08L61/20; C08L75/00; C08L75/04; C08L75/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31786; Y10T428/31794; Y10T428/31942
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
A coating composition useful for coating a substrate, which composition comprises: (a) from about 15 to 30% by weight of binder of an acrylic polyol having a weight average molecular weigh of 500-30,000; (b) from about 10 to 40% by weight, based on the weight of the binder, of an acrylosilane polymer having a weight average molecular weight of about 500-30,000; (c) from about 10 to 25% by weight, based on the weight of the binder solids, of a polyester urethane having a hydroxyl number of about 10-200 and a weight average molecular weight of about 6,000-30,000; (d) from about 20 to 40%, based on the weight of the binder, of an amino resin crosslinking agent; (e) from about 1 to 10%, based on the weight of the binder, of one or more silsesquioxane compounds; (f) an effective amount of a curing catalyst; and (g) from about 20 to 80% by weight, based on the weight of the composition, of a liquid organic carrier.
Claim 2
Dependent Claim
164 words
A coating composition useful for coating a substrate, which composition comprises: (a) from about 15 to 30% by weight of binder of an acrylic polyol having a weight average molecular weigh of 500-30,000; (b) from about 10 to 40% by weight, based on the weight of the binder, of an acrylosilane polymer having a weight average molecular weight of about 500-30,000; (c) from about 10 to 25% by weight, based on the weight of the binder solids, of a polyester urethane having a hydroxyl number of about 10-200 and a weight average molecular weight of about 6,000-30,000; (d) from about 20 to 40%, based on the weight of the binder, of an amino resin crosslinking agent; (e) from about 1 to 10%, based on the weight of the binder, of one or more silsesquioxane compounds; (f) an effective amount of a curing catalyst; and (g) from about 20 to 80% by weight, based on the weight of the composition, of a liquid organic carrier.
Claim 3
Dependent Claim
41 words
The coating composition of claim 1, wherein the silsesquioxane is represented by the following structural formula: ##STR6## wherein R is a substituted or unsubstituted alkyl, alkoxy or pheny and combinations thereof and wherein said alkyl or alkoxy has 1-6 carbon atoms.
Claim 4
Dependent Claim
13 words
A substrate coated with a cured layer of the composition of claim 1.
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) | 1996-07-26 | 1997-01-25 | 1997-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-26 | 2001-01-25 | 2001-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-26 | 2005-01-25 | 2005-07-27 | $7700.00 | Window Closed / Lapsed |