US4186026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasion-resistant coating composition
Assignee: Sola International Inc
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Filing: 1978-10-30
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Granted: 1980-01-29
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Expires: 1998-10-30
Abstract
Abstract A coating composition prepared by simultaneously hydrolyzing 20 to 50 wt. % tetraethylorthosilicate, 37 to 60 wt. % of certain silanes and 15 to 35 wt. % formalin has good abrasion resistance and resistance to crazing on substrates having a high affinity for water as well as those with a low affinity for water.
Inventors
- 👤 Don H. Rotenberg
- 👤 Patricia M. Cuffe
- 👤 Bernard L. Laurin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:48
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C09; C09D; C09D183/00; C09D183/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
46 words
A coating composition consisting of the hydrolysis product of A. 20 to 50 wt. % tetraethylorthosilicate, B. 37 to 60 wt. % of a silane selected from the group consisting of methyltrimethoxysilane, dimethyldimethoxysilane, ethyltriethoxysilane, diethyldiethoxysilane, ethyltrimethoxysilane and methyltriethoxysilane, and C. 15 to 35 wt. % formalin.
Claim 2
Dependent Claim
46 words
A coating composition consisting of the hydrolysis product of A. 20 to 50 wt. % tetraethylorthosilicate, B. 37 to 60 wt. % of a silane selected from the group consisting of methyltrimethoxysilane, dimethyldimethoxysilane, ethyltriethoxysilane, diethyldiethoxysilane, ethyltrimethoxysilane and methyltriethoxysilane, and C. 15 to 35 wt. % formalin.
Claim 3
Dependent Claim
34 words
The coating composition of claim 1 for substrates of relatively high affinity for water, wherein A is about 25 wt. %, B is about 50 wt. % and C is about 25 wt. %.
Claim 4
Dependent Claim
34 words
The coating composition of claim 1 for substrates of relatively low affinity for water wherein A is about 33 wt. %, B is about 42 wt. % and C is about 25 wt. %.
Claim 5
Dependent Claim
10 words
The coating composition of claim 2 wherein B is methyltrimethoxysilane.
Claim 6
Dependent Claim
10 words
The coating composition of claim 3 wherein B is methyltrimethoxysilane.
References Cited (Backward Citations)
US3894881A
Cited
US4064308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |