Patent · US Expired

Stabilized styrene copolymers containing elastomer particles modified with a hindered amine

US5194465A · kind A · utility

0Cited by
8References
12Claims
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Assignee

Inventors

Key dates

Filing dateSep 30, 1991
Grant dateMar 16, 1993
Priority date
Expiry dateSep 30, 2011

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 with 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.