Stabilization of electron beam curable compositions for improved exterior durability
US4393094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1982 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Apr 19, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D4/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low dosage electron beam radiation polymerizable protective and decorative coating composition or paint with improved weatherability, coated articles bearing such a protective coating and processes for preparing such articles. The radiation polymerizable coating composition comprises an organic resin/monomer mixture of: (A) between about 97 and about 3 weight percent alpha-beta olefinically unsaturated organic resin containing between about 0.5 and about 5 vinyl unsaturation units per 1000 molecular weight of said resin; and (B) between about 3 and about 97 weight percent vinyl monomers polymerizable with said resin upon exposure to radiation, characterized in that said vinyl monomers include N-vinyl-2-pyrrolidone in an amount of between about 3 and about 20 weight percent based on the total weight of (A) and (B); and (C) about 0.5 to about 5.0 parts each per 100 parts of the total of said organic resin and said monomer of: PA0 (i) benzotriazole selected from the group consisting of compounds having the formula: ##STR1## where R.sub.1 or R.sub.2 =H or an alkyl group of C.sub.1 -C.sub.25, preferably C.sub.3 -C.sub.9 ; and (ii) hindered amine selected from the group consisting of a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.