Quaternary polyvinylpyrridinium derivatives as anti-dye transfer agents
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsKlein A. Rodrigues, John S. Thomaides
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Abstract
A water-soluble quaternary polyvinylpyrridinium derivative which inhibits dye transfer in detergent compositions without adversely affecting stain or soil removal or soil redeposition. The quaternary polyvinylpyrridinium derivative contains a quaternary nitrogen and an anionic moiety selected from a sulfonate and/or a carboxylate functionality, said quaternary polyvinylpyrridinium derivative having the structure
Claims1
A process for inhibiting dye transfer from one fabric to another during fabric laundering operations involving colored fabrics, said process comprises contacting fabrics with a laundering solution comprising a water-soluble quaternary polyvinylpyrridinium derivative comprising a quaternary nitrogen, said quaternary polyvinylpyrridinium derivative having the structure
- wherein a, d, e, and f represent the mole percent of the respective repeating unit, a is 1 to 100, d is 0 to 99, e is 0 to 99;
- f is 0 to 99;
- wherein said quaternary polyvinylpyrridinium derivative comprises one or more repeating units selected from the group consisting of an amine oxide (d), an unfunctionalized pyridine group (e) and another monomer (f), R is selected from the group consisting of substituted or unsubstituted C1-C18 alkyl, C1-C18 alkenyl, C1-C18 alkoxy, C1-C18 aryl, and benzyl;
- R1, R2, and R3, are independently selected from the group consisting of hydrogen, hydroxyl, alkyl having C1 to C18, aryl having C6 to C18, and alkaryl having C7 to C18;
- X− is independently a halide.
Dependencies are inferred from the claim text.