Additives for detergents and cleaning agents

US4698174A · kind A · utility

Assignee

• BASF SE

Inventors

• Walter Denzinger · Speyer, DE
• Heinrich Hartmann · Schifferstadt, DE
• Wolfgang Trieselt · Ludwigshafen, DE
• Albert Hettche · Heßheim, DE
• Rolf Schneider · Burgstetten, DE
• Hans-Juergen Raubenheimer · Ketsch, DE

Key dates

• Filing date: Jan 27, 1986
• Grant date: Oct 6, 1987
• Expiry date: Jan 27, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3761
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Pulverulent and/or granular additives for pulverulent detergents and cleaning agents, consisting of PA0 (a) from 80 to 20% by weight of one or more copolymers comprising from 40 to 90% by weight of (meth)acrylic acid and from 60 to 10% by weight of maleic acid and/or one or more copolymers comprising from 10 to 45% by weight of (meth)acrylic acid, from 10 to 45% by weight of maleic acid and from 10 to 60% by weight of one or more hydroxyalkyl (meth)acrylates where hydroxyalkyl is of 2 to 6 carbon atoms, if appropriate in the form of a partially or completely neutralized water-soluble salt, PA0 (b) from 20 to 80% by weight of nitrilotriacetic acid or its mono-, di- or trisodium or mono-, di- or tripotassium salt and PA0 (c) from 0 to 20% by weight of one or more additives conventionally used for detergent and cleaning agent formulations, the use of these pulverulent and/or granular mixtures as additives for pulverulent and/or granular detergents and cleaning agents, and processes for the preparation of the said additives.