Patent · US Expired

Process for the preparation of stabilized styrene copolymers containing elastomer particles

US5288777A · kind A · utility

1Cited by
10References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 9, 1992
Grant dateFeb 22, 1994
Priority date
Expiry dateNov 9, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F285/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers which contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.

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