Patent · US Expired

Phenylenediamines as high temperature heat stabilizers

US5298662A · kind A · utility

3Cited by
8References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 18, 1990
Grant dateMar 29, 1994
Priority date—
Expiry dateJun 18, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K5/10
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The invention relates to the high temperature stabilization of polyol heat transfer fluids by the use of N-phenyl-p-phenylenediamines.

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