US4500669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent, abrasion resistant coating compositions
Assignee: GKN Aerospace Transparency Systems Inc
•
Filing: 1980-04-03
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Granted: 1985-02-19
•
Expires: 2000-04-03
Abstract
Abstract There is disclosed transparent, abrasion resistant coating compositions comprising a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of silanol wherein the dispersant comprises metals, alloys and salts thereof.
Inventors
- 👤 L. T. Ashlock
- 👤 Harold Mukamal
- 👤 William H. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:42
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; C08; C08K; C08K3/00; C08K3/02; C08K3/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
76 words
A coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition consisting essentially of an effective abrasion-resisting amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of R Si (OH) 3 where R is an organic radical, and said dispersant is a metal or a metal alloy selected from the group consisting of antimony, aluminum, gold, silver, copper, tin, cadmium, indium and mixtures thereof.
Claim 2
Dependent Claim
76 words
A coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition consisting essentially of an effective abrasion-resisting amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of R Si (OH) 3 where R is an organic radical, and said dispersant is a metal or a metal alloy selected from the group consisting of antimony, aluminum, gold, silver, copper, tin, cadmium, indium and mixtures thereof.
Claim 3
Dependent Claim
28 words
The coating composition of claim 1 wherein said organic radical is selected from the group consisting of C 1 -C 4 alkyl and vinyl, methoxyethyl, γ-glycidoxypropyl and γ-methacryloxypropyl.
Claim 4
Dependent Claim
19 words
The coating composition of claim 1 wherein said partial condensate contains at least 30 percent by weight methyl trisilanol.
Claim 5
Dependent Claim
17 words
The coating composition of claim 1 wherein said partial condensate contains 100 percent by weight methyl trisilanol.
Claim 6
Dependent Claim
15 words
The coating composition of claim 1 wherein said composition additionally includes a latent condensation catalyst.
Claim 7
Dependent Claim
12 words
The coating composition of claim 5 wherein said catalyst is choline acetate.
Claim 8
Dependent Claim
18 words
The coating composition of claim 1 wherein the alcohol in the water-alcohol solution is a lower aliphatic alcohol.
Claim 9
Dependent Claim
84 words
A coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition consisting essentially of an effective abrasion resisting amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of a mixture of R Si(OH) 3 and R 2 Si(OH) 2 wherein R is an organic radical, and said dispersant is a metal or a metal alloy selected from the group consisting of antimony, aluminum, gold, silver, copper, tin, cadmium, indium and mixtures thereof.
Claim 10
Dependent Claim
84 words
A coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition consisting essentially of an effective abrasion resisting amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of a mixture of R Si(OH) 3 and R 2 Si(OH) 2 wherein R is an organic radical, and said dispersant is a metal or a metal alloy selected from the group consisting of antimony, aluminum, gold, silver, copper, tin, cadmium, indium and mixtures thereof.
Claim 11
Dependent Claim
19 words
The coating composition of claim 1 wherein said dispersant has a partial size of less than about 200 angstroms.
Claim 12
Dependent Claim
24 words
The coating composition of claim 1, wherein said partial condensate contains at least 30 percent by weight of CH 3 Si (OH) 3 .
Claim 13
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is antimony or an alloy containing antimony.
Claim 14
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is aluminum or an alloy containing aluminum.
Claim 15
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is gold or an alloy containing gold.
Claim 16
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is silver or an alloy containing silver.
Claim 17
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is copper or an alloy containing copper.
Claim 18
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is tin or an alloy containing tin.
Claim 19
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is cadmium or an alloy containing cadmium.
Claim 20
Dependent Claim
16 words
The coating composition of claim 1 wherein said dispersant is indium or an alloy containing indium.
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |