Thermoplastic resin composition
US4490506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1983 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Oct 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic resin composition excellent in impact resistance and moldability and improved in falling ball impact strength at a weld part which comprises (A) a polycarbonate resin having a reduced viscosity at 25.degree. C. in chloroform of 0.40 to 0.55 and (B) a diene-rubber modified resin comprising 10 to 100% by weight of a graft polymer of a diene rubber chosen from polybutadiene, styrene/butadiene copolymer and butadiene-acrylonitrile copolymer, with an aromatic vinyl compound and at least one of a vinyl cyanide and an alkyl unsaturated carboxylate grafted thereon and 90 to 0% by weight of a copolymer of an aromatic vinyl compound with at least one of a vinyl cyanide and an alkyl unsaturated carboxylate. The diene-rubber modified resin has apparent melt viscosities at 250.degree. C. of 5.times.10.sup.3 to 1.times.10.sup.5 poise at a shear rate of 10.sup.2 sec.sup.-1 and of 1.5.times.10.sup.3 to 1.times.10.sup.4 poise at a shear rate of 10.sup.3 sec.sup.-1, the weight proportion of the components (A) and (B) being from 20:80 to 80:20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.