Patent · US Expired

Stabilization of synthetic polymers

US4061616A · kind A · utility

5Cited by
7References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 4, 1975
Grant dateDec 6, 1977
Priority date
Expiry dateSep 4, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D211/44
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A synthetic polymer composition stabilized against photo- and thermal deterioration thereof wherein there is incorporated, in a sufficient amount to prevent such deterioration, bipiperidyl derivatives.

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