Patent · US Expired

Process for producing azo group-containing polymer having azo group in main chain

US5124431A · kind A · utility

2Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 3, 1990
Grant dateJun 23, 1992
Priority date
Expiry dateOct 3, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G64/12
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Disclosed herein is a process for producing an azo group-containing polymer comprising polycondensing a compound having an azo group in the main molecular chain and an alcoholic hydroxyl group, phenolic hydroxyl group, imino group or amino group at both ends thereof with a dicarboxylic acid chloride or a carbonate precursor except the polycondensation of a compound having an azo group in the main molecular chain and an alcoholic hydroxyl group at both ends thereof with a carbonate precursor.

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