Patent · US Expired

Fluorine- and chromophore-containing polymer

US4909806A · kind A · utility

27Cited by
15References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 31, 1987
Grant dateMar 20, 1990
Priority date
Expiry dateDec 31, 2007

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B69/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Chromophoric-moiety-containing, polymeric materials, containing at least one fluoroaliphatic radical, which are useful as dyes or colorants for fluorine-containing liquids, as coatings or components of coatings which are colored, light-absorbing, or fluorescing and characteristic properties of fluorocarbon polymers, e.g. chemical inertness and hydrophobicity; and a method of detecting leaks in normally sealed devices, e.g. electronic devices, using a coating which includes the polymeric material, and a bath of a fluorine-containing liquid in which the coating is soluble.

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