Dye transfer inhibitors for detergents

US5863879A · kind A · utility

Assignee

• BASF SE

Inventors

• Michael Zirnstein · Schriesheim, DE
• Wolfgang Trieselt · Ludwigshafen, DE
• Knut Oppenlander · Ludwigshafen, DE
• Claudia Nilz · Rödersheim-Gronau, DE
• Michael Kroner · Oerlinghausen, DE
• Wolfgang H. H. Gunther · Hersbruck, DE

Key dates

• Filing date: Oct 17, 1996
• Grant date: Jan 26, 1999
• Expiry date: Oct 17, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3773
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The use of polymers which are preparable by reaction of PA1 (a) polymers that contain vinylamine units, with PA1 (b) compounds that contain aldehyde or keto groups, and optionally PA1 (c) NH- and/or OH-containing compounds and which contain aminal, hemiaminal and/or aminal-acetal structures with or without unconverted vinylamine units, as detergent additive for inhibiting dye transfer during the wash, and polymers containing aminal, hemiaminal and/or aminal-acetal structures, obtainable by reaction of PA1 (a) polymers that contain vinylamine units, with PA1 (b) compounds that contain aldehyde or keto groups, and PA1 (c) NH- and/or OH-containing compounds, and detergents which contain the abovementioned polymers in amounts from 0.05 to 10% by weight.