Use of cationically modified, particle-shaped, hydrophobic polymers as addition agents in textile rinsing or care products and as addition agents in detergents

• US 20030171246A1
• Filed: 12/03/2002
• Published: 09/11/2003
• Est. Priority Date: 06/06/2000
• Status: Active Grant

• Current Assignee: BASF AG (BASF SE)
• Original Assignee: BASF AG (BASF SE)
• Inventors: Hildebrandt, Soren, Leyrer, Reinhold J., Boeckh, Dieter, Mohr, Bernhard, Schopke, Holger, Norenberg, Ralf, Huff, Jurgen
• Granted Patent: US 6,908,490 B2
• Time in Patent Office: Days
• US Class Current: 510/475
• CPC Class Codes: C11D 3/3723 Polyamines or polyalkyleneimines
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
• CPC Class Codes: C11D 3/3769 (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines

Abstract

The invention relates to the use of cationically-modified, particle-shaped, hydrophobic polymers as addition agents in rinsing, care, detergent, and cleaning products. The surface of said polymers is cationically modified by means of a coating of cationic polymers and the particle size of said polymers ranges from 10 nm to 100 μm.

Claims

1. The use of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with cationic polymers, and the particle size of which is 10 nm to 100 μ

m, as additive to rinse or care compositions for textiles and as additive to detergents.

2. The use as claimed in claim 1, wherein the cationically modified, particulate, hydrophobic polymers are obtainable by treatment of aqueous dispersions of particulate, hydrophobic polymers having a particle size of from 10 nm to 100 μ

m with an aqueous solution or dispersion of cationic polymers.

3. The use as claimed in claim 1 or 2, wherein the dispersions of the particulate, hydrophobic polymers have been stabilized using an anionic emulsifier and/or anionic protective colloid.

4. The use as claimed in any of claims 1 to 3, wherein the hydrophobic polymers contain at least one anionic monomer in copolymerized form.

5. The use as claimed in any of claims 1 to 4, wherein the cationically modified dispersions of particulate, hydrophobic polymers have, in 0.1% strength by weight aqueous dispersion, an interface potential of from −

5 to +50 mV.

6. The use as claimed in any of claims 1 to 5, wherein the pH of the aqueous dispersions of the cationically modified, particulate, hydrophobic polymers is 2 to 12.

7. The use as claimed in any of claims 1 to 6, wherein the concentration of the cationically modified, particulate, hydrophobic polymers, in the case of use in a rinse or care bath or in the detergent liquor, is 0.0002 to 1.0% by weight.

8. The use as claimed in any of claims 1 to 7, wherein the concentration of the cationically modified, particulate, hydrophobic polymers, in the case of use in a rinse or care bath or in the detergent liquor, is 0.002 to 0.05% by weight.

9. The use as claimed in any of claims 1 to 8, wherein the cationic polymers used are polymers containing vinylamine units, polymers containing vinylimidazole units, polymers containing quaternary vinylimidazole units, condensates of imidazole and epichlorohydrin, crosslinked polyamido amines, crosslinked polyamidoamines grafted with ethylenimine, polyethylenimines, alkoxylated polyethylenimines, crosslinked polyethylenimines, amidated polyethylenimines, alkylated polyethylenimines, polyamines, amine/epichlorohydrin polycondensates, alkoxylated polyamines, polyallylamines, polydimethyldiallylammonium chlorides, polymers containing basic (meth)acrylamide or (meth)acrylic esters, polymers containing basic quaternary (meth)acrylamide or (meth)acrylic ester units, and/or lysine condensates.

10. The use as claimed in any of claims 1 to 9, wherein the cationically modified, particulate, hydrophobic polymers have additionally been cationically modified by coating with polyvalent metal ions and/or cationic surfactants.

11. A composition for the treatment of laundry and textile surfaces, which comprises

(a) 0.05 to 40% by weight of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with cationic polymers, and the particle size of which is 10 nm to 100 μ

M,

(b) 0.01 to 10% by weight of at least one cationic polymer, and

(c) 0 to 80% by weight of at least one customary additive, such as acids or bases, inorganic builders, organic cobuilders, surfactants, polymeric color transfer inhibitors, polymeric antiredeposition agents, soil release polymers, enzymes, complexing agents, corrosion inhibitors, waxes, silicone oils, light protection agents, dyes, perfume, solvents, hydrotropic agents, salts, thickeners and/or alkanolamines.

12. A laundry aftertreatment and laundry care composition in liquid or gel form, which comprises

(a) 0.1 to 30% by weight of particulate, hydrophobic polymers which contain at least one group of anionic ethylenically unsaturated monomers in copolymerized form, have a particle size of from 10 nm to 100 μ

m and have been dispersed in water,

(b) 0.05 to 20% by weight of an acid,

(c) 0.1 to 10% by weight of at least one cationic polymer,

(d) 0 to 30% by weight of at least one water-soluble salt of Mg, Ca, Zn or Al and/or of a cationic surfactant,

(e) 0 to 10% by weight of at least one other customary ingredient, such as perfume, other surfactants, silicone oil, light protection agent, dyes, complexing agent, antiredeposition agent, soil release polyester, color transfer inhibitor, nonaqueous solvent, hydrotropic agent, thickener and/or alkanolamine and

(f) water to make up to 100% by weight.

13. A laundry aftertreatment and laundry care composition as claimed in claim 12, which comprises, as component (a), 0.5 to 25% by weight of particulate, hydrophobic polymers which contain, in copolymerized form, 25 to 60% by weight of an ethylenically unsaturated monomer which contains at least one carboxylic acid group, have a particle size of from 10 nm to 100 μ

m and have been dispersed using an anionic emulsifier and/or an anionic protective colloid in water.

14. A laundry aftertreatment and laundry care composition as claimed in claim 12, which comprises, as component (a), 0.5 to 25% by weight of particulate, hydrophobic polymers which contain, in copolymerized form, 0.1 to 10% by weight of an ethylenically unsaturated monomer which contains at least one carboxylic acid group and at least 80% by weight of a water-insoluble ethylenically unsaturated nonionic monomer, have a particle size of from 10 nm to 100 μ

m and have been dispersed using an anionic emulsifier and/or an anionic protective colloid in water.

15. A laundry aftertreatment and laundry care composition as claimed in claim 12, which comprises, as component (a), 0.5 to 25% by weight of particulate, hydrophobic polymers which contain, in copolymerized form, 10 to 100% by weight of an ethylenically unsaturated monomer containing fluorine substituents, have a particle size of from 10 nm to 100 μ

m and have been dispersed using an anionic emulsifier and/or an anionic protective colloid in water.

16. A solid detergent formulation which comprises

(a) 0.05 to 20% by weight of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with cationic polymers and optionally additionally with polyvalent metal ions and/or cationic surfactants, and the particle size of which is 10 nm to 100 μ

m,

(b) 0.1 to 40% by weight of at least one nonionic, cationic and/or anionic surfactant,

(c) 0 to 50% by weight of an inorganic builder,

(d) 0 to 10% by weight of an organic cobuilder, and

(e) 0 to 60% by weight of other customary ingredients, such as extenders, enzymes, perfume, other surfactants, complexing agents, corrosion inhibitors, bleaches, bleach activators, bleach catalysts, color transfer inhibitors, antiredeposition agents, soil release polyesters, dyes, dissolution improvers and/or disintegrants.

17. A detergent formulation in liquid or gel form which comprises

(a) 0.05 to 20% by weight of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with at least one cationic polymer and optionally additionally with polyvalent metal ions and/or cationic surfactants, and the particle size of which is 10 nm to 100 μ

m,

(b) 0.1 to 40% by weight of at least one nonionic, cationic and/or anionic surfactant,

(c) 0 to 20% by weight of an inorganic builder,

(d) 0 to 10% by weight of an organic cobuilder,

(e) 0 to 10% by weight of other customary ingredients, such as soda, enzymes, perfume, other surfactants, complexing agents, corrosion inhibitors, bleaches, bleach activators, bleach catalysts, color transfer inhibitors, antiredeposition agents, soil release polyesters, dyes, nonaqueous solvents, hydrotropic agents, thickeners and/or alkanolamines and

(f) 0 to 90% by weight of water. Use of cationically modified, particulate, hydrophobic polymers as additive to rinse or care compositions for textiles and as additive to detergents