Process for the preparation of pigmentary metallic particles coated with an organic polymer and compositions resulting therefrom
US4023981A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Jun 4, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigmentary composition prepared by coating metallic particles of pigment by means of a polymer or copolymer, by covering the polymerization or copolymerization "in situ" of at least one ethylenically unsaturated monomer having at least one oxygen or nitrogen heteroatom, and having a mono- or di-carborylic acid function, or an ester, nitrile or amide function or an N-substituted amide function, or an amine, alcohol or ether function, wherein the polymerization or copolymerization reaction is effected in a medium comprising at least one organic solvent in which the monomer is soluble and in the presence of at least one polymerization catalyst soluble in this medium, the monomer and the proportion thereof being selected so that the polymer or copolymer formed is insoluble in the organic solvent used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.