Process for the preparation of antiscratch and antiabrasion shaped articles based on acrylic polymers
US5698270A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1997 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2433/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process to confer antiscratch and antiabrasion properties onto a shaped article based on thermoplastic acrylic polymers by coating the article with a composition comprising PA1 a) 40-98.5% by weight of a methacrylic or acrylic monomer and/or an oligomer of the methacrylic or acrylic monomer, the monomer or oligomer having at least two polymerizable double bonds; PA1 b) 1-20% by weight of a polar methacrylic or acrylic monomer and/or oligomers of the polar monomer; PA1 c) 0.5-10% by weight of a UV photoinitiator; and optionally containing silica, UV stabilizers and non ionic surfactants; by polymerizing and crosslinking in situ said composition by UV light, at temperatures of 20.degree.-65.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.