Fabric care compositions
View Patent ↗Polyurethaneurea compositions in the form of powders and dispersions are provided for enhancing properties of washed fabric including easy care, better iron gliding, improved shape retention, perfume substantiation and stain management properties.
1. A fabric care composition comprising:
(a) a detergent or fabric softener composition; and
(b) a polyurethaneurea in the form of an aqueous dispersion;
wherein the weight percent of said detergent or fabric softener composition is greater than the weight percent of said polyurethane aqueous dispersion;
wherein said polyurethaneurea comprises a reaction product of an isocyanate-terminated polyurethane prepolymer and a chain extender;
said prepolymer is a reaction product of a polyether glycol polymer or copolyether glycol polymer; a diisocyanate; and optionally an acidic diol; and
said diisocyante is an aromatic diisocyanate selected from the group consisting of phenylenediisocyanate, tolylenediisocyanate (TDI), xylylenediisocyanate, biphenylenediisocyanate, naphthylenediisocyanate, diphenylmethanediisocyanate (MDI), and combinations thereof.
2. The composition of claim 1 , wherein said detergent or fabric softener is compatible for use in a washing machine.
3. The composition of claim 1 , wherein said detergent or fabric softener is compatible for hand washing.
4. The composition of claim 1 , wherein said detergent or fabric softener is in a form selected from the group consisting of a powder, a liquid, a solid tablet, an encapsulated liquid, and a non-woven sheet.
5. The composition of claim 1 , wherein said chain extender is selected from the group consisting of a diamine chain extender, water, and combinations thereof.
6. The composition of claim 1 , wherein said aqueous dispersion is selected from the group consisting of an anionic dispersion and a non-ionic dispersion.
7. The composition of claim 1 , wherein said acidic diol is selected from the group consisting of 2,2-dimethylolacetic acid, 2,2-dimethylolpropionic acid, 2,2-dimethylolbutanoic acid, 2,2-dimethylolpentanoic acid, and combinations thereof.
8. The composition of claim 1 , wherein said polymer is poly(tetramethylene ether) glycol, said diisocyante is 4,4′-methylene bis(phenyl isocyante) or a mixture of 4,4′-methylene bis(phenyl isocyante) and 2,4′-methylene bis(phenyl isocyante), and said acidic diol is 2,2-dimethylolpropionic acid or is absent.
9. The composition of claim 1 , wherein said polyurethane aqueous dispersion comprises from about 0.1% to about 20% by weight of the fabric care composition.
10. A fabric care composition comprising:
(a) a detergent or fabric softener composition; and
(b) a polyurethaneurea in the form of a powder,
wherein said polyurethaneurea comprises a reaction product of an isocyanate-terminated polyurethane prepolymer and a chain extender;
said prepolymer is a reaction product of a polyether glycol polymer or copolyether glycol polymer; a diisocyanate; and optionally an acidic diol; and
said diisocyante is an aromatic diisocyanate selected from the group consisting of phenylenediisocyanate, tolylenediisocyanate (TDI), xylylenediisocyanate, biphenylenediisocyanate, naphthylenediisocyanate, diphenylmethanediisocyanate (MDI), and combinations thereof.