Patent · US Active

Thermoplastic molding compounds with an optimized residual monomer content

US10189932B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

INEOS STYROLUTION GROUP GMBH · DE

Inventors

Roland Walker · Osnabrück, DE
Gisbert Michels · Leverkusen, DE
Brian J. BANASZAK · Mannheim, DE

Key dates

Filing date	Apr 24, 2015
Grant date	Jan 29, 2019
Priority date	—
Expiry date	Apr 24, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L55/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of styrene graft copolymers comprising addition and graft copolymerization of styrene monomers A1 and vinyl cyanide monomers A2 to a graft base B where the ratio by mass of A1 to A2 in the monomer feed at the end of the monomer feed time is lower than the ration by mass integrated over the entire monomer feed time. The present invention further relates to a graft copolymer obtainable by a process according to the invention, a molding composition comprising such a graft copolymer, and a molding obtained from such a molding composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.