Patent · US Expired

Dye transfer inhibitors for detergents

US5830844A · kind A · utility

7Cited by

2References

8Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Detering · Schifferstadt, DE
Christian Schade · Ludwigshafen, DE
Johannes Perner · Neustadt, DE
Hans-Ulrich Jager

Key dates

Filing date	Dec 17, 1996
Grant date	Nov 3, 1998
Priority date	—
Expiry date	Dec 17, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/3776
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Water-insoluble, crosslinked polymers containing polymerized units of 1-vinylpyrrolidone and/or 1-vinylimidazoles of the formula ##STR1## where R, R.sup.1 and R.sup.2 are identical or different and each is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, or of 4-vinylpyridine N-oxide, in finely divided form, at least 90% by weight of the polymers having a particle size from 0.1 to 500 .mu.m, are useful as detergent additives for inhibiting the transfer of dye during the wash.

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