Formulations, use thereof as or for the production of dishwashing detergents, and production thereof

Patent metadata

Field	Value
Publication number	US-10294444-B2
Application number	US-201515320623-A
Country	US
Kind code	B2
Filing date	Jun 12, 2015
Priority date	Jun 23, 2014
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

In a formulation used as or for the production of dishwashing detergents, the formulation includes
(A) at least one compound selected from aminocarboxylates, (B) at least one graft copolymer composed of
(a) at least one graft base selected from monosaccharides, disaccharides, oligosaccharides and polysaccharides,
and side chains obtainable by grafting on of
(b) at least one ethylenically unsaturated mono- or dicarboxylic acid and (c) at least one ethylenically unsaturated N-containing monomer with a permanent cationic charge, and
(C) at least one inorganic peroxide compound selected from sodium peroxodisulfate, sodium perborate and sodium percarbonate.

First claim

The invention claimed is:

1. A formulation comprising
(A) at least one compound selected from methylglycine diacetate (MGDA) and glutamic acid diacetate (GLDA), and salts thereof,
(B) at least one graft copolymer composed of
(a) at least one graft base selected from monosaccharides, disaccharides, oligosaccharides and polysaccharides, and side chains obtainable by grafting on of
(b) at least one ethylenically unsaturated mono- or dicarboxylic acid and
(c) at least one ethylenically unsaturated N-containing monomer with a permanent cationic charge, and

(C) at least one inorganic peroxide compound selected from sodium peroxodisulfate, sodium perborate and sodium percarbonate.

2. The formulation according to claim 1 , wherein it the formulation is free from phosphates and polyphosphates.

3. The formulation according to claim 1 , wherein compound (c) is selected from (meth)acrylamidopropyltrimethylammonium chloride.

4. The formulation according to claim 1 , wherein compound (A) is selected from the trisodium salt of methylglycine diacetate (MGDA).

5. The formulation according to claim 1 , wherein the formulation is solid at room temperature.

6. The formulation according to claim 1 , wherein the formulation comprises at least one polymeric builder (D).

7. The formulation according to claim 1 , wherein the formulation comprises sodium citrate.

8. The formulation according to claim 1 , wherein the formulation comprises in the range from 0.1 to 10% by weight of water.

9. The formulation according to claim 1 , wherein the formulation comprises:
in total in the range from 1 to 50% by weight of compound (A),
in total in the range from 0.1 to 4% by weight of graft copolymer (B), and
in the range from 1 to 20% by weight of peroxide (C),
based in each case on solids content of the formulation in question.

10. A process for washing dishes and kitchen utensils, the process comprising washing said dishes and kitchen utensils using the formulation according to claim 1 .

11. A process for washing objects which have at least one surface made of glass wherein the glass is one of decorated and undecorated, the process comprising washing said objects using the formulation according to claim 1 .

12. The process according to claim 10 , wherein the washing comprises washing using a dishwasher.

13. A process for the preparation of formulations according to claim 1 , wherein at least one compound (A), at least one graft copolymer (B) and at least one peroxide (C) are mixed together in one or more steps.

14. The process according to claim 13 , wherein water is at least partially removed from the formulation after mixing.

15. The process according to claim 14 , wherein the water is removed by spray drying.

Assignees

• Basf Se

Inventors

• Türk Holger
• Weber Heike
• Türkoglu Gazi
• Garcia Marcos Alejandra

Classifications

• C11D3/3942

  Inorganic per-compounds (C11D3/3902 takes precedence) · CPC title

• C11D3/0036 Primary

  Soil deposition preventing compositions; Antiredeposition agents · CPC title

• C08F251/00 Primary

  Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof · CPC title

• C11D3/3788 Primary

  Graft polymers · CPC title

• C11D3/33

  Amino carboxylic acids · CPC title