Laundry detergent tablets

• US 20020058604A1
• Filed: 09/07/2001
• Published: 05/16/2002
• Est. Priority Date: 09/08/2000
• Status: Abandoned Application

• Current Assignee: Ditmar Kischkel, Jutta Stute, Manfred Weuthen
• Original Assignee: Ditmar Kischkel, Jutta Stute, Manfred Weuthen
• Inventors: Stute, Jutta, Weuthen, Manfred, Kischkel, Ditmar
• Application Number:
  US09/949,362
• Publication Number:
  US 20020058604A1
• Time in Patent Office: Days
• US Class Current: 510/446
• CPC Class Codes: C11D 17/0073 Tablets
• CPC Class Codes: C11D 3/001 Softening compositions
• CPC Class Codes: C11D 3/0052 Gas evolving or heat producing compositions
• CPC Class Codes: C11D 3/128 Aluminium silicates, e.g. zeolites C11D3/1253 takes precedence
• CPC Class Codes: C11D 3/227 with nitrogen-containing groups
• CPC Class Codes: C11D 3/3719 Polyamides or polyimides
• CPC Class Codes: C11D 3/3723 Polyamines or polyalkyleneimines
• CPC Class Codes: C11D 3/3742 Nitrogen containing silicones
• CPC Class Codes: C11D 3/3769 (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam

Abstract

Laundry detergent tablets are proposed comprising

(a) anionic, nonionic and/or amphoteric surfactants,

(b) cationic polymers,

(c) zeolites,

(d) disintegrants, and if desired

(e) phyllosilicates.

Claims

1. A laundry detergent tablet comprising

(a) anionic, nonionic and/or amphoteric surfactants,

(b) cationic polymers,

(c) zeolites,

(d) disintegrants, and if desired

(e) phyllosilicates.

2. The laundry detergent tablet as claimed in claim 1 comprising anionic surfactants selected from the group consisting of alkylbenzenesulfonates, alkyl sulfates, soaps, alkanesulfonates, olefin-sulfonates, methyl ester sulfonates, fatty alcohol polyglycol ethers, alkoxylated fatty acid lower alkyl esters, and alkyl and/or alkenyl oligoglycosides.

3. The laundry detergent tablet as claimed in claim 1 and/or 2, comprising the surfactants in amounts of from 1 to 50% by weight, based on the laundry detergent.

4. The laundry detergent tablet as claimed in at least one of claims 1 to 3, comprising cationic polymers selected from the group consisting of cationic cellulose derivatives, cationic starches, copolymers of diallylammonium salts and acrylamides, quaternized vinylpyrrolidone/vinyl-imidazole polymers, condensation products of poly-glycols and amines, quaternized collagen polypeptides, quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers, copolymers of adipic acid and dimethylaminohydroxypropyldiethylenetriamine, copolymers of acrylic acid with dimethyldiallylammonium chloride, polyamino-polyamides, cationic chitin derivatives, condensation products of dihaloalkyls with bisdialkylamines, quaternized ammonium salt polymers, and cationic guar gums.

5. The laundry detergent tablet as claimed in claim 4, comprising guar hydroxypropyltrimethyl-ammonium chloride as cationic polymer.

6. The laundry detergent tablet as claimed in at least one of claims 1 to 5, comprising the cationic polymers in amounts of from 0.1 to 10% by weight, based on the composition.

7. The laundry detergent tablet as claimed in at least one of claims 1 to 6, comprising zeolite A and/or zeolite P.

8. The laundry detergent tablet as claimed in at least one of claims 1 to 7, comprising the zeolites in amounts of from 10 to 60% by weight, based on the composition.

9. The laundry detergent tablet as claimed in at least one of claims 1 to 8, comprising disintegrants selected from the group consisting of polysaccharides, polyvinylpyrrolidone, Kollidon, alginic acid and the alkali metal salts thereof, amorphous or else partially crystalline phyllosilicates, polyurethanes, and polyethylene glycols.

10. The laundry detergent tablet as claimed in at least one of claims 1 to 9, comprising the disintegrants in amounts of from 0.1 to 25% by weight, based on the composition.