Polymers for laundry applications
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsEric Aubay, Wilfried Blokzijl, Cedric Geffroy, Khalid Mahmood, Laurence Griffith Thompson, John Michael Walsh, Kenneth Wong, Dominic Yeung
Life of this patent
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Abstract
A polymer for use in a composition or method of laundry treatment is a copolymer of: (a) one or more anionic monomer units; (b) one or more cationic monomer units; and (c) optionally, one or more uncharged monomer units; wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1, especially from 17:3 to 3:1.
Claims16
A composition for washing and/or rinsing of laundry, the composition comprising one or more surfactants suitable for use in laundry wash and/or rinsing product, an enzyme and enzyme and a polymer which is a co-polymer formed of:
- (a) one or more anionic monomer units;
- (b) one or more cationic monomer units;
- and
- (c) one or more uncharged monomer units;
- wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1.
A process for effecting soil release from a laundry item, said process comprising contacting the laundry item with a polymer, said polymer being a copolymer formed of:
- (a) one or more anionic monomer units;
- (b) one or more cationic monomer units;
- and
- (c) optionally, one or more uncharged monomer units;
- wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1.
Dependencies are inferred from the claim text.