Methacrylimide containing polymer
US5064911A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Oct 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A methacrylimide containing polymer which is a thermoplastic polymer comprising from 2 to 100% by weight of a structural unit represented by the general formula: ##STR1## where R represents a hydrogen atom or an aliphatic group, aromatic group or cycloaliphatic hydrocarbon group with 1 to 20 carbon atoms and from 0 to 98% by weight of a structural unit derived from as ethylenic monomer, the polymer having PA0 (a) a molecular weight (Mw) of greater than 50,000 and less than 200,000 as measured by GPC, and PA0 (b) an amount of amide segments in the polymer of less than 5% by weight. The methacrylimide containing polymer has excellent transparency and heat resistance, as well as a low yellowness and aging coloration under heating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.