Patent US5260350A successfully refreshed from Google Patents.
US5260350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable acryloxyfunctional silicone coating composition
Assignee: Dow Silicones Corp
•
Filing: 1992-02-14
•
Granted: 1993-11-09
•
Expires: 2012-02-14
Abstract
Abstract The present invention relates to a silicone coating composition which, when cured on a solid substrate either by ultraviolet or electron beam radiation, provides a transparent abrasion resistant coating firmly adhered thereon. The silicon coating is prepared by reacting at least one multifunctional acrylate monomer with an amino-organofunctional silane, mixing the modified silane with at least one acrylic monomer and thereafter adding colloidal silica.
Inventors
- 👤 Antony P. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:04
CPC Classifications
C; C09; C09D; C09D4/00; C09D4/06; C08; C08F; C08F230/00; C08F230/04; C08F230/08; C08G; C08G77/00; C08G77/04; C08G77/38; C09D183/00; C09D183/04; C09D183/08; C09D183/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31786; Y10T428/31855
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
118 words
A composition for forming an abrasion-resistant coating material formulated by the steps comprising: reacting the following components in a solution of a polar solvent: at least one multifunctional acrylate monomer; an amino-organofunctional silane of the formula X.sub.a Si{Q(NHQ').sub.b NZH}.sub.4-a wherein: X is selected from alkoxy groups having 1 to 6 carbon atoms; Q and Q' are the same or different divalent hydrocarbon groups; Z is a hydrogen or monovalent hydrocarbon group; a is an integer from 1 to 3; and b is an integer from 0 to 6; for a time and at a temperature sufficient to form a Michael adduct therefrom; adding an acid to the above-resulting solution; and thereafter adding colloidal silica to the above-resulting solution.
Claim 2
Dependent Claim
118 words
A composition for forming an abrasion-resistant coating material formulated by the steps comprising: reacting the following components in a solution of a polar solvent: at least one multifunctional acrylate monomer; an amino-organofunctional silane of the formula X.sub.a Si{Q(NHQ').sub.b NZH}.sub.4-a wherein: X is selected from alkoxy groups having 1 to 6 carbon atoms; Q and Q' are the same or different divalent hydrocarbon groups; Z is a hydrogen or monovalent hydrocarbon group; a is an integer from 1 to 3; and b is an integer from 0 to 6; for a time and at a temperature sufficient to form a Michael adduct therefrom; adding an acid to the above-resulting solution; and thereafter adding colloidal silica to the above-resulting solution.
Claim 3
Dependent Claim
19 words
The composition of claim 1 wherein said acid comprises up to about ten percent by weight of acrylic acid.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein said steps further comprise stripping said polar solvent after the addition of said colloidal silica.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein said polar solvent comprises isopropyl alcohol.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein said multifunctional acrylate monomer is a mixture of hexanedioldiacrylate and trimethylpropanetriacrylate.
Claim 7
Dependent Claim
14 words
The composition of claim 1 wherein said colloidal silica is in an aqueous dispersion.
Claim 8
Dependent Claim
25 words
The composition of claim 6 wherein said steps further comprise stripping said polar solvent and water from said composition after the addition of colloidal silica.
Claim 9
Dependent Claim
30 words
The composition of claim 1 wherein the colloidal silica does not exceed 60% by weight of the sum of the weights of the multifunctional acrylic monomer, amino-organofunctionalsilane and colloidal silica.
Claim 10
Dependent Claim
14 words
The composition of claim 1 wherein said steps further comprise adding a leveling agent.
Claim 11
Dependent Claim
18 words
The composition of claim 9 which contains up to about ten percent by weight of a leveling agent.
Claim 12
Dependent Claim
14 words
The composition of claim 9 wherein the leveling agent is a silicone glycol surfactant.
Claim 13
Dependent Claim
16 words
The composition of claim 1 wherein said steps further comprise adding one or more UV absorbers.
Claim 14
Dependent Claim
12 words
The composition of claim 12 which contains up to 20% UV absorbers.
Claim 15
Dependent Claim
27 words
The composition of claim 12 wherein said UV absorbers are selected from the group, consisting of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)(3,5-bis(1,1-dimethylethyl 1-4'-hydroxyphenyl)methyl)butylpropanedioate, 2-ethylhexyl-2-cyano-3,3'-diphenylacrylate, 2-hydroxyl-4-n-octoxybenzophenone, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole and poly(oxy-1,2-ethanediyl), alpha-(3-(3(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxylphenyl)-1-oxopropyl)-omega-hydroxy and combinations thereof.
Claim 16
Dependent Claim
12 words
The composition of claim 12 where the UV absorber is poly(oxy-1,2-ethanediyl), alpha-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxylphenyl)-1-oxopropyl)-omega-hydroxy.
Claim 17
Dependent Claim
15 words
The composition of claim 1 wherein said steps further comprise adding one or more photoinitiators.
Claim 18
Dependent Claim
10 words
The composition of claim 16 wherein said photoinitiator is 2,2-dimethoxy-2-phenyl-acetyl-phenone.
Claim 19
Dependent Claim
12 words
A composition in accordance with claim 16 wherein the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-propan-1-one.
Claim 20
Dependent Claim
21 words
A composition in accordance with claim 1 wherein said multifunctional acrylate monomer is a mixture of hexanedioldiacrylate and bisphenol A dimethacrylate.
Claim 21
Dependent Claim
14 words
A composition in accordance with claim 1 wherein said amino-organofunctional silane is 3-aminopropyltrimethoxy silane.
Claim 22
Dependent Claim
14 words
A composition in accordance with claim 1 wherein said amino-organofunctional silane is 3-aminopropyltriethoxy silane.
Claim 23
Dependent Claim
14 words
A composition in accordance with claim 1 wherein said amino-organofunctional silane is anilinopropyltrimethoxy silane.
Claim 24
Dependent Claim
24 words
A composition in accordance with claim 1 wherein the molar ratio of said multifunctional acrylate monomer to said amino-organofunctional silane is at least 1:1.
Claim 25
Dependent Claim
16 words
A composition in accordance with claim 1 wherein said colloidal silica is an acidic aqueous dispersion.
Claim 26
Dependent Claim
20 words
A composition in accordance with claim 1 wherein said colloidal silica is dispersed in a solution of 2-propanol and water.
Claim 27
Dependent Claim
15 words
A composition in accordance with claim 1 wherein said colloidal silica is dispersed in propoxyethanol.
Claim 28
Dependent Claim
13 words
A composition in accordance with claim 1 wherein said acid is acetic acid.
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) | 1996-11-08 | 1997-05-10 | 1997-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-08 | 2001-05-10 | 2001-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-08 | 2005-05-10 | 2005-11-09 | $7700.00 | Window Closed / Lapsed |