Patent · US Expired

Aqueous polymer dispersions

US5344865A · kind A · utility

0Cited by

4References

8Claims

0Family size

Assignee

BASF SE

Inventors

Heinrich Grubert · Heidelberg, DE
Rolf Dersch · Bischofswerda, DE

Key dates

Filing date	Sep 14, 1992
Grant date	Sep 6, 1994
Priority date	—
Expiry date	Sep 14, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2810/50
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Aqueous polymer dispersions are obtainable by polymerizing a monomer mixture which contains from 10 to 100% by weight of halogenated monomers in the presence of from 0.5 to 6% by weight, based on the monomer mixture, of exclusively anionic and/or non-ionic emulsifiers by radical emulsion polymerization in aqueous medium, and adjusting the pH of the aqueous phase of the resulting aqueous polymer dispersion to from 5 to 10 by addition of bases which are different from ammonia and from primary and secondary amines, it being possible for the bases to be added before, during and/or after the emulsion polymerization.

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