Thermoplastic resin compositions
US4427832A · kind A · utility
9Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1981 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Jul 17, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L55/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In the emulsion polymerization of a monomer mixture comprising an aromatic vinyl compound, a vinyl cyanide compound and if desired, other vinyl compounds copolymerizable therewith in an aqueous medium, the vinyl cyanide compound is further added to the polymerization system in a controlled velocity during the substantial period of polymerization from the initial stage. When the copolymer thus obtained is incorporated into, for example, an acrylonitrile-butadiene-styrene terpolymer composition, thermoplastic resin compositions not coloring upon molding are obtained with a good impact resistance and heat resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.