US4540634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles coated with transparent, abrasion resistant compositions
Assignee: GKN Aerospace Transparency Systems Inc
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Filing: 1984-12-28
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Granted: 1985-09-10
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Expires: 2004-12-28
Abstract
Abstract Articles coated with transparent, abrasion resistant 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
- 👤 Lysander T. Ashlock
- 👤 Harold Mukamal
- 👤 William H. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:42
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
75 words
An article manufactured by applying to at least one surface of a substrate, a coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition containing an effective abrasion resistant amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ), wherein R is an organic radical, and said dispersant is a metal or a metal alloy, and curing said coating composition.
Claim 2
Dependent Claim
75 words
An article manufactured by applying to at least one surface of a substrate, a coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition containing an effective abrasion resistant amount of a colloidal dispersion of a water insoluble dispersant in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ), wherein R is an organic radical, and said dispersant is a metal or a metal alloy, and curing said coating composition.
Claim 3
Dependent Claim
24 words
An article as in claim 1 wherein the cured coating composition forms a coating matrix of RSiO 3 / 2 and the colloidal dispersant.
Claim 4
Dependent Claim
14 words
An article as in claim 1 wherein the substrate is a polymethylmethacrylate plastic sheet.
Claim 5
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is antimony or an alloy containing antimony.
Claim 6
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is aluminum or an alloy containing aluminum.
Claim 7
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is gold or an alloy containing gold.
Claim 8
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is silver or an alloy containing silver.
Claim 9
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is copper or an alloy containing copper.
Claim 10
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is tin or an alloy containing tin.
Claim 11
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is cadmium or an alloy containing cadmium.
Claim 12
Dependent Claim
16 words
An article as in claim 1 wherein said dispersant is indium or an alloy containing indium.
Claim 13
Dependent Claim
18 words
An article as in claim 1 wherein said dispersant has a particle size of less than 200 angstroms.
Claim 14
Dependent Claim
22 words
An article as in claim 1 wherein the partial condensate contains at least 30% by weight of CH 3 Si(OH) 3 .
References Cited (Backward Citations)
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US4059553A
Cited
US4127682A
Cited
US4091171A
Cited
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |