Patent · US Expired

Graft copolymers containing rubber, acrylonitrile and an aromatic olefin

US4205020A · kind A · utility

7Cited by
8References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 13, 1979
Grant dateMay 27, 1980
Priority date
Expiry dateFeb 13, 1999

Classification

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

Abstract

A graft copolymer comprises a substrate of a diene rubber, and a homogeneous superstrate containing units of acrylonitrile and at least one aromatic olefin having a molar ratio of acrylonitrile to olefin between 2 and 9. The superstrate may also contain a minor amount (preferably less than 10 mole %) of at least one other comonomer selected from acenaphthylene, vinyl carbazole and its derivatives, maleimide and its N-substituted derivatives and norbornene and its derivatives.

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