Patent · US Expired

Preparation of an aqueous polymer dispersion

US5763521A · kind A · utility

3Cited by

1References

16Claims

0Family size

Assignee

BASF SE

Inventors

Peter Claassen · Ludwigshafen, DE
Onno Graalmann · Dossenheim, DE
Wolfgang Alois Hormuth · St. Martin, DE
Marinus Visseren

Key dates

Filing date	Dec 4, 1996
Grant date	Jun 9, 1998
Priority date	—
Expiry date	Dec 4, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F236/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An aqueous polymer dispersion is prepared by free radical aqueous emulsion polymerization of a mixture of monomers having at least one ethylenically unsaturated group, which comprises at least 30% by weight of monomers having two conjugated ethylenically unsaturated double bonds, by a process in which the polymerization temperature is varied in the course of the free radical aqueous emulsion polymerization.

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