Abrasion resistant silicone coating composition
US5342658A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 28, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an ultraviolet light curable coating composition having a shorter curing time and an excellent abrasion resistance, which comprises: PA1 (A) an aqueous-alcoholic base resin dispersion containing, based on the weight of the total solids present in the base resin dispersion, PA1 (a) 5 to 75% by weight of a colloidal silica and PA1 (b) 25 to 95% by weight of a partial condensate of a silanol of formula: EQU R SI(OH).sub.3 PA2 wherein PA2 R is a C.sub.1-6 alkyl, C.sub.6-20 aryl or hydroxy group; and PA1 (B) an ultraviolet light curable catalyst of formula EQU Ar.sub.3 S.sup.+ MX.sub.n.sup.- PA2 wherein PA2 Ar.sub.3 is a triphenyl, tri(4-methoxy)phenyl, tri(3,5-dimethyl-4-hydroxyphenyl), diphenyl-2,5-dimethylphenyl or tri(4-methyl) phenyl group; and PA2 MX.sub.n.sup.- is a metallic halide anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.