Patent · US Expired

Aqueous polymer dispersion having a broad particle distribution

US5436289A · kind A · utility

7Cited by

3References

14Claims

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	Mar 31, 1994
Grant date	Jul 25, 1995
Priority date	—
Expiry date	Mar 31, 2014

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.