Patent · US Active

Method for producing a thickener dispersion

US8232356B2 · kind B2 · utility

2Cited by

18References

16Claims

0Family size

Assignee

BASF SE

Inventors

Reinhold J. Leyrer · Schifferstadt, DE
Kati Schmidt · Shanghai, CN

Key dates

Filing date	Nov 13, 2008
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Dec 30, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/48
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A method is described for producing an aqueous thickener dispersion from a monomer composition made of at least one ethylenically unsaturated carboxylic acid and at least one ethylenically unsaturated hydrophobic monomer, The monomer composition preferably also comprises an associative monomer. The method avoids disadvantages of batch polymerization, such as inadequate batch-to-batch reproducibility and safety problems.

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