Laundry detergents containing soil release polymers

US10351802B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Carsten Cohrs · Frankfurt, DE
• Dirk Fischer · Garching an der Alz, DE
• Henricus Peerlings · Solingen, DE
• Kevin Mutch · Frankfurt, DE

Key dates

• Filing date: Nov 10, 2015
• Grant date: Jul 16, 2019
• Expiry date: Nov 10, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3715
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to liquid laundry detergent compositions comprising a) one or more polyesters comprising two or more of the repeating structural unit (a1), one or more of the repeating structural unit (a2) and either one or two of the terminal group (a3), wherein G1 is one or more of (OCnH2n) with n being a number of from 2 to 10, R1 is a C1-30 alkyl, p is based on a molar average, a number of from 0 to 60, q is based on a molar average, a number of from 0 to 50, whereby the (OC3H6)— and (OC2H4)— groups of the terminal group (a3) may be arranged blockwise, alternating, periodically and/or statistically and wherein the connections of the groups (OC3H6)— and (OC2H4)— to R1— and —NH are free to vary, adjacent structural units (a1) are connected by the structural unit (a2), in the case that only one terminal group (a3) is present in the polymer, the other terminal group is selected from the group consisting of OH, OCH3, and G1OH, and both terminal groups may only be linked to the structural unit (a1), and b) one or more surfactants. The one or more polyesters of component a) possess advantageous stability in alkaline environments, beneficial solubility and advantageously are clea…