Process for making high solids acrylic dispersion lacquer
US4476270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for making high solids acrylic dispersion lacquer coating composition having an acrylic polymer binder content of about 25-45% by weight in a nonaqueous medium; wherein the acrylic polymer is a blend of PA0 (1) Polymer A of methyl methacrylate and a polymerized monomer of allyl methacrylate, alkyl amino alkyl methacrylate or mixtures thereof; PA0 (2) Copolymer B of methyl methacrylate and an alkyl acrylate having 6-12 carbon atoms in the alkyl group; and PA0 (3) A graft copolymer of Polymer A which forms a backbone of the graft copolymer and Copolymer B attached to the backbone which forms side chains of the graft copolymer; and wherein the nonaqueous medium is a blend of PA1 (a) an aliphatic solvent which at 25.degree. C. is a nonsolvent for Polymer A and a solvent for Copolymer B; and PA1 (b) a coalescing solvent for the binder; the composition is useful as an exterior finish for automobiles and trucks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.