Gel compositions containing alkoxylated carboxylic acid esters, their use in cleaning toilets and toilet cleaning products containing the same

US6683035B1 · kind B1 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Rita Koester · Goldkronach, DE
• Ansgar Behler · Bottrop, DE
• Jutta Stute · Cologne, DE
• Ditmar Kischkel · Monheim, DE

Key dates

• Filing date: Aug 27, 2001
• Grant date: Jan 27, 2004
• Expiry date: Aug 27, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/72
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Gel compositions comprising a thickener and a surfactant component including an alkoxylated carboxylic acid ester corresponding to general formula (I): wherein R1C(O) represents an aliphatic acyl group, each AlkO independently represents an alkoxylate selected from the group consisting of CH2CH2O, CHCH3CH2O and CH2CHCH3O, n is a number of from 1 to 20, and R2 represents an aliphatic alkyl group, are described. The use of such gel compositions in methods of providing controlled release of cleaning agents to toilets is also described, in addition to the containers used in such methods.