Methacrylamide resin composition
US4981892A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | May 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic resin composition comprising 0.01 to 10 parts by weight of at least one ultraviolet ray absorbent having a peak absorption wavelength at 240-300 nm in the range of 240-400 nm and 100 parts by weight of methacrylimide group-containing polymer containing at least 5% by weight of imide ring structural unit expressed by the following structural formula is disclosed: ##STR1## (wherein R.sub.1 is a hydrogen atom, or a substituted or non-substituted alkyl group having 1-20 carbon atoms, cycloalkyl group, aryl group, alkalyl group, alalkyl group, or allyl group.) This composition has an improved weather durability and thermal resistance as well as light transmittance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.