Two component coating composition of an anhydride containing polymer and a glycidyl component
US4816500A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating composition useful for a finish for automobiles and trucks in which the film forming binder contains two reactive binder components of about PA1 (a) 50-95% by weight, based on the weight of the binder, of an acrylic polymer having at least two reactive anhydride groups composed of polymerized monomers of an ethylenically unsaturated anhydride and polymerized monomers from the group consisting of alkyl methacrylate, alkyl acrylate and any mixtures thereof, wherein the alkyl groups have 1-8 carbon atoms and the polymer has a weight average molecular weight of about 2,000-50,000; PA1 (b) 5-50% by weight, based on the weight of the binder, of a glycidyl component having at least two reactive glycidyl groups; and the composition contains about 0.1-5% by weight, based on the weight of the binder, of a catalyst; and wherein the composition upon curing forms a hard, glossy and tack free finish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.