Patent · US Expired

Process for producing acrylamide polymer

US5296577A · kind A · utility

10Cited by
1References
15Claims
0Family size

Assignees

Inventors

Key dates

Filing dateMay 25, 1990
Grant dateMar 22, 1994
Priority date
Expiry dateMay 25, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F20/56
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

There is disclosed a process for producing an acrylamide polymer which comprises polymerizing acrylamide monomer alone or a monomer mixture composed of 50 mole % or more of acrylamide monomer and a monomer capable of copolymerizing with acrylamide monomer in the presence of an azo series polymerization initiator and 0.1% by weight or more of 2-mercaptobenzothiazole or a salt thereof based on the weight of the monomer in an aqueous medium having a pH of 6 or higher at a temperature range of 5 to 100.degree. C., and then drying the resulting material.

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