Impact resistant acrylic polymer composition
US4085166A · kind A · utility
9Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1977 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | May 18, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A molding composition of improved toughness, thermal stability, flow and stress craze resistance comprising (A) from about 70 to about 95% of a resinous terpolymer of 65 to 75 parts of methylmethacrylate, 18 to 24 parts of styrene and 2 to 12 parts of ethylacrylate and (B) 5% to 30% of polybutadiene grafted with 17 to 22 parts of methylmethacrylate, 4 to 7 parts of styrene and 0 to 3 parts of ethylacrylate, the ratio of polybutadiene to monomer in (B) ranging from 1:1 to 4:1, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.