Patent · US Expired

Aqueous polymer dispersion

US5340859A · kind A · utility

11Cited by

5References

8Claims

0Family size

Assignee

BASF SE

Inventors

Oral Aydin · Mannheim, DE
Michael Portugall · Monsheim, DE
Josef Neutzner · Neustadt, DE
Walter Maechtle · Ludwigshafen, DE

Key dates

Filing date	Apr 26, 1993
Grant date	Aug 23, 1994
Priority date	—
Expiry date	Apr 26, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F291/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An aqueous polymer dispersion with a solids volume concentration of at least 50% by volume is obtainable by polymerizing monomers by the method of free radical aqueous emulsion polymerization with the addition of at least two starting polymer dispersions, of which one contains not only particularly finely divided but also coarsely divided polymer particles.

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