US4442168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated substrate comprising a cured transparent abrasion resistant filled organo-polysiloxane coatings containing colloidal antimony oxide and colloidal silica
Assignee: GKN Aerospace Transparency Systems Inc
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Filing: 1983-04-28
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Granted: 1984-04-10
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Expires: 2003-04-28
Abstract
Abstract A cured transparent, abrasion resistant coating on at least one surface of a substrate. The coating composition comprises an effective abrasion resisting amount of a colloidal dispersion containing colloidal antimony oxide and colloidal silica in a weight ratio of less than or equal to about 30:70, in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ) wherein R is an organic radical.
Inventors
- 👤 William H. White
- 👤 William C. Harbison
- 👤 Gary L. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:02
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/259; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
89 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 comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ) wherein R is an organic radical, and curing said applied coating composition.
Claim 2
Dependent Claim
89 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 comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ) wherein R is an organic radical, and curing said applied coating composition.
Claim 3
Dependent Claim
27 words
An article as in claim 1 wherein said organic radical is selected from the group consisting of C 1 -C 4 alkyl and vinyl, gamma-gylcidoxypropyl and gamma-methacryloxypropyl.
Claim 4
Dependent Claim
23 words
An article as in claim 1 wherein the cured coating composition forms a coating matrix of (RSiO 3/2 ) and the colloidal dispersion.
Claim 5
Dependent Claim
23 words
An article as in claim 1 wherein the coating matrix consists of about 5 percent to about 70 percent of the colloidal dispersion.
Claim 6
Dependent Claim
14 words
An article as in claim 1 wherein the substrate is a polymethylmethacrylate plastic sheet.
Claim 7
Dependent Claim
62 words
An article having a transparent, abrasion-resistant coating applied to at least one of its surfaces, said coating forming a matrix of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, and (RSiO 3/2 ) wherein R is an organic radical.
Claim 8
Dependent Claim
62 words
An article having a transparent, abrasion-resistant coating applied to at least one of its surfaces, said coating forming a matrix of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, and (RSiO 3/2 ) wherein R is an organic radical.
Claim 9
Dependent Claim
99 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 comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal antimony oxide and colloidal silica in a weight ratio of from about 2:98 to about 30:70, in a water-alcohol solution of a partial condensate comprising a mixture of R(Si(OH) 3 ) and R 1 2 (Si(OH) 2 ) wherein R and R 1 are organic radicals, and said condensate contains at least about 70 percent by weight R(Si(OH) 3 ).
Claim 10
Dependent Claim
99 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 comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal antimony oxide and colloidal silica in a weight ratio of from about 2:98 to about 30:70, in a water-alcohol solution of a partial condensate comprising a mixture of R(Si(OH) 3 ) and R 1 2 (Si(OH) 2 ) wherein R and R 1 are organic radicals, and said condensate contains at least about 70 percent by weight R(Si(OH) 3 ).
Claim 11
Dependent Claim
77 words
An article manufactured by applying to at least one surface of a substrate coating composition which forms a transparent abrasion resistant coating upon curing, said coating composition comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal antimony oxide and colloidal silica in a weight ratio of about 10:90, in a water-alcohol solution of the partial condensate of CH 3 Si(OH) 3 , said composition containing sufficient acid to provide a pH of about 5.5.
Claim 12
Dependent Claim
77 words
An article manufactured by applying to at least one surface of a substrate coating composition which forms a transparent abrasion resistant coating upon curing, said coating composition comprising an effective abrasion resisting amount of a colloidal dispersion containing colloidal antimony oxide and colloidal silica in a weight ratio of about 10:90, in a water-alcohol solution of the partial condensate of CH 3 Si(OH) 3 , said composition containing sufficient acid to provide a pH of about 5.5.
Claim 13
Dependent Claim
19 words
An article as in claim 1 wherein said partial condensate contains at least 30 percent by weight methyl trisilanol.
Claim 14
Dependent Claim
19 words
An article as in claim 1 wherein said partial condensate contains at least 70 percent by weight methyl trisilanol.
Claim 15
Dependent Claim
17 words
An article as in claims 6 or 7 wherein said organic radical R is a methyl group.
Claim 16
Dependent Claim
27 words
An article as in claims 1 or 7 wherein said composition contains sufficient acid to provide a pH in the range of about 3 to about 6.
Claim 17
Dependent Claim
12 words
An article as in claim 10 wherein said acid is acetic acid.
Claim 18
Dependent Claim
21 words
An article as in claims 1 or 7 wherein said composition contains from about 10 percent to about 50 percent solids.
Claim 19
Dependent Claim
21 words
An article as in claim 13 wherein said solids contain about 5 percent to about 70 percent of said colloidal dispersion.
Claim 20
Dependent Claim
23 words
An article as in claims 1 or 7 wherein said solids contain about 30 percent to about 95 percent of said partial condensate.
Claim 21
Dependent Claim
17 words
An article as in claims 1 or 7 wherein said composition additionally includes a latent condensation catalyst.
Claim 22
Dependent Claim
25 words
An article as in claim 15 wherein said catalyst is taken from the group consisting of choline acetate, sodium acetate, ethanolamine acetate, and benzyl-trimethylammonium acetate.
Claim 23
Dependent Claim
21 words
An article as in claim 15 wherein said composition contains from about 0.05 percent to about 2 percent of said catalyst.
Claim 24
Dependent Claim
12 words
An article as in claim 15 wherein said catalyst is choline acetate.
Claim 25
Dependent Claim
20 words
An article as in claims 1 or 7, wherein the alcohol in the water-alcohol solution is a lower aliphatic alcohol.
Claim 26
Dependent Claim
11 words
An article as in claim 20 where said alcohol is isobutanol.
Claim 27
Dependent Claim
11 words
An article as in claim 20 wherein said alcohol is isopropanol.
Claim 28
Dependent Claim
25 words
An article as in claims 1 or 6 wherein the weight ratio ranges from about 2:98 to about 30:70 colloidal antimony oxide to colloidal silica.
Claim 29
Dependent Claim
19 words
An article as in claim 22 wherein said composition contains sufficient acid to provide a pH of about 5.5.
Claim 30
Dependent Claim
14 words
An article as in claims 7 or 8 wherein said coating composition is cured.
Claim 31
Dependent Claim
100 words
A process for rendering the surface of a substrate abrasion-resistant by: (a) applying to at least one surface of a substrate a coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition comprising an effective abrasion-resisting amount of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide and colloidal silica in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ) wherein R is an organic radical; and (b) curing said applied coating composition.
Claim 32
Dependent Claim
100 words
A process for rendering the surface of a substrate abrasion-resistant by: (a) applying to at least one surface of a substrate a coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition comprising an effective abrasion-resisting amount of a colloidal dispersion containing colloidal silica and an effective abrasion resistance enhancing amount of colloidal antimony oxide and colloidal silica in a weight ratio of less than or equal to about 30:70, antimony oxide:silica, in a water-alcohol solution of the partial condensate of R(Si(OH) 3 ) wherein R is an organic radical; and (b) curing said applied coating composition.
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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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |