US4355135A
Expired / Lapsed
US
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Tintable abrasion resistant coatings
Assignee: Dow Silicones Corp
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Filing: 1981-11-04
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Granted: 1982-10-19
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Expires: 2001-11-04
Abstract
Abstract What is disclosed are hard, abrasion resistant, tintable/dyeable coating compositions which are based on siloxane/silica hybrid coating resins. These materials are especially useful on transparent plastic substrates.
Inventors
- 👤 James R. January
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; C09D183/06
Claims Analysis
Total Claims: 64
Claim 1
Independent Claim
244 words
A composition comprising (A) a base resin consisting of an aqueous-alcoholic dispersion of (i) 5 to 75 weight percent, based on the total solids of (A), of colloidal silica, (ii) 0 to 50 weight percent, based on the total solids of (A), of a partial condensate of a silanol which is selected from a group consisting of silanols having the formula (a) RSi(OH) 3 wherein R is methyl, (b) R'Si(OH) 3 wherein R' is a mixture of methyl with a radical selected from the group consisting of vinyl, phenyl, ethyl, propyl, 3,3,3-trifluoropropyl, gamma-methacryloxypropyl, gamma-mercaptopropyl and gamma-chloropropyl wherein the ratio of methyl radicals to the other radicals in the mixture is at least 1:1, and (c) R"Si(OH) 3 wherein R" is selected from a group consisting of vinyl, phenyl, ethyl, propyl, 3,3,3-trifluoropropyl, gamma-methacryloxypropyl, gamma-mercaptopropyl and gamma-chloropropyl and mixtures thereof, wherein when (c) is selected, the amount of (c) in (A) cannot exceed 10 weight percent based on the total weight of (A); (iii) 10 to 55 weight percent, based on the total solids of (A), of a partial condensate of a silanol of the formula R'"Si(OH) 3 wherein R'" is selected from the group consisting of (a) ##STR18## wherein R"" is an alkylene radical containing 1 to 4 carbon atoms, R""' is a hydrogen atom or an alkyl radical of 1 or 2 carbon atoms and (b) ##STR19## wherein R""has the meaning set forth above; (B) a crosslinker for (A) and, (C) a curing catalyst.
Claim 2
Dependent Claim
244 words
A composition comprising (A) a base resin consisting of an aqueous-alcoholic dispersion of (i) 5 to 75 weight percent, based on the total solids of (A), of colloidal silica, (ii) 0 to 50 weight percent, based on the total solids of (A), of a partial condensate of a silanol which is selected from a group consisting of silanols having the formula (a) RSi(OH) 3 wherein R is methyl, (b) R'Si(OH) 3 wherein R' is a mixture of methyl with a radical selected from the group consisting of vinyl, phenyl, ethyl, propyl, 3,3,3-trifluoropropyl, gamma-methacryloxypropyl, gamma-mercaptopropyl and gamma-chloropropyl wherein the ratio of methyl radicals to the other radicals in the mixture is at least 1:1, and (c) R"Si(OH) 3 wherein R" is selected from a group consisting of vinyl, phenyl, ethyl, propyl, 3,3,3-trifluoropropyl, gamma-methacryloxypropyl, gamma-mercaptopropyl and gamma-chloropropyl and mixtures thereof, wherein when (c) is selected, the amount of (c) in (A) cannot exceed 10 weight percent based on the total weight of (A); (iii) 10 to 55 weight percent, based on the total solids of (A), of a partial condensate of a silanol of the formula R'"Si(OH) 3 wherein R'" is selected from the group consisting of (a) ##STR18## wherein R"" is an alkylene radical containing 1 to 4 carbon atoms, R""' is a hydrogen atom or an alkyl radical of 1 or 2 carbon atoms and (b) ##STR19## wherein R""has the meaning set forth above; (B) a crosslinker for (A) and, (C) a curing catalyst.
Claim 3
Dependent Claim
18 words
A composition as claimed in claim 1 wherein (A) (ii) is the partial condensate (a), RSi(OH) 3 .
Claim 4
Dependent Claim
18 words
A composition as claimed in claim 1 wherein (A) (ii) is the partial condensate (b), R'Si(OH) 3 .
Claim 5
Dependent Claim
18 words
A composition as claimed in claim 1 wherein (A) (ii) is the partial condensate (c), R"Si(OH) 3 .
Claim 6
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the gamma-methacryloxypropyl radical.
Claim 7
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the phenyl radical.
Claim 8
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the propyl radical.
Claim 9
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the gamma-chloropropyl radical.
Claim 10
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the gamma-mercaptopropyl radical.
Claim 11
Dependent Claim
20 words
A composition as claimed in claim 3 wherein R' is a mixture of the methyl radical with the vinyl radical.
Claim 12
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is vinyl.
Claim 13
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is phenyl.
Claim 14
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is ethyl.
Claim 15
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is propyl.
Claim 16
Dependent Claim
10 words
A composition claimed in claim 4 wherein R" is 3,3,3-trifluoropropyl.
Claim 17
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is gamma-methacryloxypropyl.
Claim 18
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is gamma-mercaptopropyl.
Claim 19
Dependent Claim
11 words
A composition as claimed in claim 4 wherein R" is gamma-chloropropyl.
Claim 20
Dependent Claim
47 words
A composition as claimed in claim 1 wherein (A) (i) is present at 30 to 70 weight percent; (A) (ii) is present at 5 to 25 weight percent and (A) (iii) is present at 20 to 40 weight percent, all based on the total weight of (A).
Claim 21
Dependent Claim
49 words
A composition as claimed in claim 19 wherein there is also present sufficient component (B) to react with 25 to 200 percent of available epoxy groups in component (A) (iii) and 0.05 to 5 weight percent based on the total solids of (A), (B) and (C), of component (C).
Claim 22
Dependent Claim
14 words
A composition as claimed in claim 20 wherein component (B) is a polycarboxylic acid.
Claim 23
Dependent Claim
14 words
A composition as claimed in claim 20 wherein component (B) is a polycarboxylic anhydride.
Claim 24
Dependent Claim
14 words
A composition as claimed in claim 20 wherein component (B) is a polyfunctional imide.
Claim 25
Dependent Claim
13 words
A composition as claimed in claim 21 where the polycarboxylic acid is succinic.
Claim 26
Dependent Claim
13 words
A composition as claimed in claim 21 where the polycarboxylic acid is itaconic.
Claim 27
Dependent Claim
13 words
A composition as claimed in claim 21 where the polycarboxylic acid is fumaric.
Claim 28
Dependent Claim
14 words
A composition as claimed in claim 22 wherein the polycarboxylic anhydride is succinic anhydride.
Claim 29
Dependent Claim
14 words
A composition as claimed in claim 22 wherein the polycarboxylic anhydride is trimellitic anhydride.
Claim 30
Dependent Claim
14 words
A composition as claimed in claim 22 wherein the polycarboxylic anhydride is pyromellitic anhydride.
Claim 31
Dependent Claim
14 words
A composition as claimed in claim 22 wherein the polycarboxylic anhydride is phthalic anhydride.
Claim 32
Dependent Claim
14 words
A composition as claimed in claim 22 wherein the polycarboxylic anhydride is maleic anhydride.
Claim 33
Dependent Claim
13 words
A composition as claimed in claim 23 wherein the polyfunctional imide is succinimide.
Claim 34
Dependent Claim
13 words
A composition as claimed in claim 23 wherein the polyfunctional imide is phthalimide.
Claim 35
Dependent Claim
13 words
A composition as claimed in claim 23 wherein the polyfunctional imide is glutarimide.
Claim 36
Dependent Claim
13 words
A composition as claimed in claim 23 wherein the polyfunctional imide is maleimide.
Claim 37
Dependent Claim
17 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is a metal acetyl acetonate.
Claim 38
Dependent Claim
15 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is a diamide.
Claim 39
Dependent Claim
15 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is an imidazole.
Claim 40
Dependent Claim
15 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is an amine.
Claim 41
Dependent Claim
17 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is an organic sulfonic acid.
Claim 42
Dependent Claim
21 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is an amine salt of an organic sulfonic acid.
Claim 43
Dependent Claim
21 words
A composition as claimed in claim 20 wherein component (C), the catalyst, is an alkali metal salt of a carboxylic acid.
Claim 44
Dependent Claim
16 words
A composition as claimed in claim 36 wherein the metal acetyl acetonate is aluminum acetyl acetonate.
Claim 45
Dependent Claim
16 words
A composition as claimed in claim 36 wherein the metal acetyl acetonate is zinc acetyl acetonate.
Claim 46
Dependent Claim
16 words
A composition as claimed in claim 36 wherein the metal acetyl acetonate is cobalt acetyl acetonate.
Claim 47
Dependent Claim
16 words
A composition as claimed in claim 36 wherein the metal acetyl acetonate is iron acetyl acetonate.
Claim 48
Dependent Claim
12 words
A composition as claimed in claim 37 wherein the diamide is dicyandiamide.
Claim 49
Dependent Claim
12 words
A composition as claimed in claim 38 wherein the imidazole is 2-methylimidazole.
Claim 50
Dependent Claim
12 words
A composition as claimed in claim 39 wherein the amine is benzyldimethylamine.
Claim 51
Dependent Claim
16 words
A composition as claimed in claim 40 wherein the organic sulfonic acid is trifluoromethane sulfonic acid.
Claim 52
Dependent Claim
23 words
A composition as claimed in claim 42 wherein the alkali metal salt of a carboxylic acid is the sodium salt of acetic acid.
Claim 53
Dependent Claim
82 words
A composition of matter as claimed in claim 1 wherein there (A) is (i) 5-75 weight percent of colloidal silica; (ii) 0-50 weight percent of CH 3 Si(OH 3 ) 3 and (iii) 10-55 weight percent of ##STR20## all based on the weight of (i), (ii), and (iii); (B) sufficient succinimide to react with 25 to 200 percent of available epoxy groups in (A) (iii) and (C) 0.05 to 5 weight percent, based on the total solids in the composition, of dicyandiamide.
Claim 54
Dependent Claim
89 words
A composition as claimed in claim 52 wherein there is present (A) (i) 50 weight percent, based on the total solids in (A), of colloidal silica, (ii) 25 weight percent, based on the total solids in (A) of CH 3 Si(OH) 3 , (iii) 25 weight percent, based on the total solids in (A), of ##STR21## (B) sufficient succinimide to react with 85% of the available epoxy groups in (A) (iii) and, (C) 1.5 weight percent, based on the weight of the total solids in the composition, of dicyandiamide.
Claim 55
Dependent Claim
61 words
A composition as claimed in claim 52 wherein there is present (A) (i) 50 weight percent, based on the total solids in (A), of colloidal silica, (B) sufficient itaconic acid to react with 85% of the available epoxy groups in (A) (iii) and, (C) 5.0 weight percent, based on the weight of the total solids in the composition, of sodium acetate.
Claim 56
Dependent Claim
41 words
A process for coating solid substrates which comprises contacting a solid substrate with a composition of claim 1 and thereafter curing the composition on the solid substrate by heating the composition and substrate to a temperature of greater than 50° C.
Claim 57
Dependent Claim
9 words
A solid substrate prepared in accordance with claim 55.
Claim 58
Dependent Claim
15 words
A solid substrate prepared in accordance with claim 56 wherein said solid substrate is transparent.
Claim 59
Dependent Claim
16 words
A solid substrate in accordance with claim 57 wherein the solid substrate is an acrylic polymer.
Claim 60
Dependent Claim
15 words
A solid substrate in accordance with claim 57 wherein the solid substrate is a polyester.
Claim 61
Dependent Claim
15 words
A solid substrate in accordance with claim 59 wherein the polyester is poly(diphenylol propane) carbonate.
Claim 62
Dependent Claim
17 words
A solid substrate in accordance with claim 59 wherein the polyester is poly(diethylene glycol bis allyl) carbonate.
Claim 63
Dependent Claim
18 words
A solid substrate in accordance with claim 57 wherein the substrate is in the form of a lens.
Claim 64
Dependent Claim
15 words
A solid substrate in accordance with claim 62 wherein the lens is an ophthalmic lens.
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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |