Plastic articles having improved surface characteristics
US3968306A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1973 |
| Grant date | Jul 6, 1976 |
| Priority date | — |
| Expiry date | Jul 19, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic article having improved surface characteristics comprises a plastic body having adhered thereon a cross-linked film of a composition comprising (A) 10 to 90 parts by weight of a cross-linking unsaturated compound having a molecular weight of M and containing in the molecule N polymerizable ethylenically unsaturated radicals (N being an integer of 2 or more), the ratio of said molecular weight, M, to said number, N, of ethylenically unsaturated radicals (M/N) being about 49 to about 600, (B) 90 to 10 parts by weight of an unsaturated monomer containing in the molecule at least one radical copolymerizable with said component (A) and at least one acid radical, and (C) up to 20 parts by weight of other copolymerizable unsaturated compounds, the total of (A), (B) and (C) being 100 parts by weight, at least a part of the acid radicals contained in the film having been converted into alkali salts thereof, said cross-linked film having a thickness of 5 to 500 .mu.. The above plastic article is produced by forming on the surface of a plastic body a cross-linked film of the composition comprising the components (A), (B) and (C) and then treating the cross-linked film with a base to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.