Patent · US Expired

Stabilized thermoplastic elastomer

US4766164A · kind A · utility

1Cited by
14References
14Claims
0Family size

Inventors

Key dates

Filing dateDec 1, 1983
Grant dateAug 23, 1988
Priority date—
Expiry dateDec 1, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L67/06
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain polyvinylpyrrolidone and preferably also contain guanidine stabilizer, phosphorus stabilizer and diphenylamine.

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