Patent · US Expired

Cotton active, dirt removing urethane-based polymers

US7098179B2 · kind B2 · utility

7Cited by

35References

16Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

Josef Penninger · Hilden, DE
Wolfgang Denuell · Mannheim, DE
Rainer Schoenfeld · Goldkronach, DE

Key dates

Filing date	Apr 22, 2004
Grant date	Aug 29, 2006
Priority date	—
Expiry date	Apr 22, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/0036
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A method of washing a soiled textile comprising cotton, the method comprising contacting the textile with a wash liquor, the wash liquor containing a soil-release effective amount of one or more soil release polymers obtained by polymerizing one or more polyisocyanates with one or more polymeric polyols having an average molar mass of above 1000 D and a 20° C. water solubility of above 300 g of polymer per liter, one or more polyols having an average molar mass of below 12,000 D and a 20° C. water solubility of below 100 g per liter, and optionally one or more further polyols.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.