High solids paint composition comprising hydroxy functional oligoesters and hydroxy functional copolymers
US4322508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1980 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Jun 9, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A high solids, thermosetting coating composition which, exclusive of pigments, solvents and other nonreactive components consists essentially of: PA1 (A) A hydroxy functional component consisting of: PA2 (1) between about 1 and about 90 weight percent of an oligoester (i) having a number average molecular weight (M.sub.n) of between about 150 and about 3000 (ii) bearing at least about 2 hydroxyl groups and (iii) being formed by an esterification reaction between a carboxylic acid and an epoxide; and PA2 (2) between about 99 and about 10 weight percent of a hydroxy functional copolymer having a number average molecular weight (M.sub.n) of between about 500 and about 15,000, said hydroxy functional copolymer being formed from about 10 to about 50 weight percent of hydroxy functional monoethylenically unsaturated monomers selected from the group consisting of hydroxy bearing aliphatic alcohol esters of acrylic and methacrylic acids, and a remainder of other monoethylenically unsaturated monomers; and PA1 (B) A crosslinking agent capable of reacting with hydroxy functionality of said hydroxy functional component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.