Patent · US Expired

Copolyestercarbonates

US4465820A · kind A · utility

100Cited by
3References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 3, 1983
Grant dateAug 14, 1984
Priority date—
Expiry dateJun 3, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G63/64
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A new aromatic copolyestercarbonate is achieved with 70 to 95 weight percent ester content and having consistently high 3.2 mm impact strength while maintaining a high level of stress cracking resistance.

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