Thermoplastic resin composition
US4965315A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1985 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Apr 23, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F279/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic resin composition composed of a mixture comprising a graft polymer obtained by subjecting a monomer mixture of an aromatic vinyl monomer and a vinyl cyanide monomer to emulsion polymerization in the presence of a diene rubber latex, and a hard polymer obtained by copolymerizing a monomer mixture of an aromatic vinyl monomer and a vinyl cyanide monomer, in which the number average particle size Dn of diene rubber particles contained in the composition is at most 0.1 .mu.m, the ratio (Dw/Dn) of the weight average particle size Dw to the number average particle size Dn of the diene rubber particles is at least 5.0, the graft rate of said graft polymer is at least 60%, and the content of an emulsifier and a reaction product of an emulsifier is not higher than 2% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.