Curable composition for top coating and articles coated using the same
US6265073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Feb 9, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The curable composition for coating of the invention comprises (A) 100 parts by weight of an epoxy group-having resin, (B) from 0.001 to 100 parts by weight of a carboxyl group-having compound or resin, and (C) from 1.0 to 100 parts by weight of a silicon compound of the following general formula (I) and/or its partially-hydrolyzed condensate: EQU (R.sup.1 O).sub.4-a SiR.sup.2.sub.a (I) wherein R.sup.1 represents a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 10 carbon atoms, or an aralkyl group having from 7 to 10 carbon atoms; R.sup.2 represents an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 10 carbon atoms, an aralkyl group having from 7 to 10 carbon atoms, or an alkoxy group having from 1 to 10 carbon atoms; and a represents an integer of from 0 to 2. The composition has good thermal curability, and the coating films from the composition have excellent and well-balanced physical properties including excellent acid resistance, scratch resistance, weather resistance, appearance and recoating adhesiveness, and additionally have extremely excellent stain resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.