Patent · US Expired

Polymer compositions stabilized with hindered phenyl secondary phosphites

US4233208A · kind A · utility

14Cited by
11References
26Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 12, 1978
Grant dateNov 11, 1980
Priority date
Expiry dateJul 12, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K5/51
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Organic polymeric materials normally subject to oxidative and ultraviolet light deterioration are stabilized by incorporating therein a compound of the formula ##STR1## wherein R is hydroxyl or chlorine, Y and Y' are independently alkyl, aralkyl or halogen, and Z is independently hydrogen, halogen, alkyl or aralkyl.

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