Patent · US Expired

Additives for perfluoropolyether oils

US7081440B2 · kind B2 · utility

3Cited by
13References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 17, 2003
Grant dateJul 25, 2006
Priority date—
Expiry dateMar 4, 2024

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2030/10
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Use as stabilizers of perfluoropolyether oils at high temperatures, higher than 200° C., of compounds not containing phosphor and having the general formula (A):

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