Patent · US Expired

Rubbermodified styrene polymers

US3989771A · kind A · utility

5Cited by
3References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 1975
Grant dateNov 2, 1976
Priority date—
Expiry dateApr 30, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F279/02
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Addition of very small amounts of bromine or bromine-containing compounds in the preparation of rubber-modified vinyl aromatic polymers increase their impact resistance.

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