Patent · US Active

Use of a copolymer as thickener in liquid detergents having lower graying tendency

US8865639B2 · kind B2 · utility

0Cited by

20References

11Claims

0Family size

Assignee

BASF SE

Inventors

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

Key dates

Filing date	Feb 11, 2011
Grant date	Oct 21, 2014
Priority date	—
Expiry date	Mar 21, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/3765
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to copolymers which contain a) at least 15% by weight units of an ethylenically unsaturated carboxylic acid, b) at least 15% by weight units of a C4-C8-alkylacrylats, c) less than 5% by weight units of methyl methacrylate, and are used as thickeners in liquid textile detergents. The copolymers can additionally contain units of a non-ionic ethylenically unsaturated surfactant monomer that are incorporated by polymerization. The thickeners are characterized by high thickening action, high shear thinning and low graying of the laundry after the washing process.

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