Clear-rinsing agents with cationic polymers

US6025314A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Christian Nitsch · Dressendorf, DE
• Willi Buchmeier · Goldkronach, DE
• Peter Jeschke · Eltville am Rhein, DE
• Ludwig Schieferstein · Ratingen, DE
• Herbert Fischer · Goldkronach, DE

Key dates

• Filing date: May 6, 1998
• Grant date: Feb 15, 2000
• Expiry date: May 6, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3776
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for improving the soil release properties of dishwashing machine rinse aid compositions used to rinse dishware and remove starch-containing soils therefrom by adding to the compositions a cationic polymer containing monomer units corresponding to formula I: ##STR1## in which R.sup.1 is hydrogen or a methyl group, PA0 R.sup.2, R.sup.3 and R.sup.4 are the same or different and represent hydrogen or a C.sub.1-8 alk(en)yl group, R.sup.8 is a linear, cyclic or branched alkylene group containing 2 to 8 carbon atoms, and PA0 X represents a monofunctional anion or the 1/m part of an m-functional anion.