Hydrophilic polyurethanes and their application as soil-release, anti-soil redeposition, and anti-static agents for textile substrates

Patent 4201824 Issued on May 6, 1980. Estimated Expiration Date:

June 7, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2948691

2998403

3598633

3617352

3639309

3655437

3658940

3695924

3896035

Process for imparting renewable soil release finish to polyester-containing fabrics
Patent #: 3985923
Issued on: 10/12/1976
Inventor: Basadur

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Inventors

Assignee

Rhone-Poulenc Industries

Application

No. 05/804391 filed on 06/07/1977

US Classes:

442/93, Coating or impregnation improves soil repellency, soil release, or anti- soil redeposition qualities of fabric442/115, Nitrogen containing510/299, With soil release or antisoiling component510/475, Synthetic polymer or natural rubber (other than polyether, such as polyethylene glycol, alkylene oxide condensation products, etc.)510/528, Soil-release or antisoiling composition528/66, Reactant having two -XH groups contains two or more -C-X-C- groups or two or more carboxylic acid ester groups528/904, ISOCYANATE POLYMER HAVING STATED HYDROPHILIC OR HYDROPHOBIC PROPERTY8/115.6With coating, sizing, or lubricating

Examiners

Primary: Cockeram, H. S.

Attorney, Agent or Firm

Burns, Doane, Swecker & Mathis

International Classes

C08G 18/08 (20060101)
C08G 18/00 (20060101)
C08G 18/42 (20060101)
C08G 18/10 (20060101)
C08G 18/48 (20060101)
D06M 15/37 (20060101)
D06M 15/564 (20060101)

Abstract

Novel linear hydrophilic polyurethane polymers are presented. The polymers provide outstanding soil-release, anti-soil redeposition and anti-static properties when applied to natural and synthetic textile substrates, especially textile substrates containing polyester fibers. These polyurethanes are particularly useful in detergent compositions.