Automatic dishwashing cleaning composition

Patent metadata

Field	Value
Publication number	US-10287533-B2
Application number	US-201715481493-A
Country	US
Kind code	B2
Filing date	Apr 7, 2017
Priority date	Apr 8, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

An automatic dishwashing cleaning composition including a dispersant polymer and a surface-modification surface-substantive polymer wherein the composition leaves glass after being washed with the composition in an automatic dishwasher with a contact angle with deionised water of less than about 50° and wherein the surface-modification surface-substantive polymer has a rivulet forming effect on water drainage from glass.

First claim

What is claimed is:

1. A phosphate free automatic dishwashing cleaning composition comprising a dispersant polymer and a surface-modification surface-substantive polymer wherein the surface-modification surface-substantive polymer is a cationic polymer comprising in copolymerized form from:
i. about 60% to about 99% by weight of the cationic polymer of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (monomer (A))

in which the variables have the following meanings:
X is —CH2- or —CO—, if Y is —O—;
X is —CO—, if Y is —NH—
Y is —O—or —NH—;
R1 is hydrogen or methyl;
R2 are identical or different C2-C6-alkylene radicals;
R3 is H or C1-C4 alkyl;
n is an integer from 3 to 100,
ii. from about 1 to about 40% by weight of the cationic polymer of at least one quaternized nitrogen-containing monomer, selected from the group consisting of at least one of the monomers of the formula IIa to IId (monomer (B))

in which the variables have the following meanings:
R is C1-C4 alkyl or benzyl;
R′ is hydrogen or methyl;
Y is —O —or —NH—;
A is C1-C6 alkylene;
X—is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate;
iii. from about 0 to 15% by weight of the cationic polymer of at least one anionic monoethylenically unsaturated monomer (monomer (C), and
iv. from about 0 to 30% by weight of the cationic polymer of at least one other nonionic monoethylenically unsaturated monomer (monomer (D),
and the cationic polymer has a weight average molecular weight (Mw) from 2,000 to 500,000 g/mol; and
wherein the dispersant polymer is a carboxylated/sulfonated polymer.

2. A composition according to claim 1 wherein the surface-modification surface-substantive polymer is a cationic polymer comprising in copolymerized form from:
i. about 60% to about 99% by weight of the cationic polymer of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (monomer (A))

in which the variables have the following meanings:
X —CO—
Y —O—;
R 1 is hydrogen or methyl;
R 2 is ethylene, linear or branched propylene or mixtures thereof;
R 3 is methyl;

n is an integer from 15 to 60,
ii. from about 1 to about 40% by weight of the cationic polymer of at least one quaternized nitrogen-containing monomer, selected from the group consisting of at least one of the monomers of the formula IIa to IId (monomer (B))

in which the variables have the following meanings:
R is C1-C4 alkyl or benzyl;
R′ is hydrogen or methyl;
Y is —O— or —NH—;
A is C1-C6 alkylene;
X—is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate;
iii. from about 0 to about 15% by weight of the cationic polymer of at least one anionic monoethylenically unsaturated monomer (monomer (C), and
iv. from about 0 to about 30% by weight of the cationic polymer of at least one other nonionic monoethylenically unsaturated monomer (monomer (D),
and the cationic polymer has a weight average molecular weight (Mw) from about 25,000 g/mol to about 200,000 g/mol.

3. A composition according to claim 1 wherein the surface-modification surface-substantive polymer is a cationic polymer comprising in copolymerized form from:
i. about 60% to about 99% by weight of the cationic polymer of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (monomer (A)

in which the variables have the following meanings:
X is —CH2-or —CO—, if Y is —O—;
X is —CO—, if Y is —NH—;

Y is —O—or —NH—;
R1 is hydrogen or methyl;
R2 are identical or different C2-C6-alkylene radicals;
R3 is H or C1-C4 alkyl;
n is an integer from about 15 to about 60,
ii. from about 1 to 40% by weight of the cationic polymer of at least one quaternized nitrogen-containing monomer, selected from the group consisting of at least one of the monomers of the formula IIa to IId (monomer (B))

in which the variables have the following meanings:
R is C1-C4 alkyl or benzyl;
R′ is hydrogen or methyl;
Y is —O—or —NH—;
A is C1-C6 alkylene;
X—is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate;
iii. from 0 to 15% by weight of the cationic polymer of at least one anionic monoethylenically unsaturated monomer (monomer (C)), and
iv. from 0 to 30% by weight of the cationic polymer of at least one other nonionic monoethylenically unsaturated monomer (monomer (D)),
and the cationic polymer has a weight average molecular weight (Mw) from about 25,000 g/mol to about 200,000 g/mol;
wherein the cationic polymer comprises from about 69 to about 89% by weight of monomer (A) and from about 9 to about 29% by weight of monomer (B) and wherein monomer (A) is methylpolyethylene glycol (meth)acrylate and wherein monomer (B) is a salt of 3-methyl- 1-vinylimidazolium.

4. A composition according to claim 1 wherein the surface-modification surface-substantive polymer is a cationic polymer comprising in copolymerized form from:
i. about 60% to about 99% by weight of the cationic polymer of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (monomer (A))

in which the variables have the following meanings:
X is —CH2-or —CO—, if Y is —O—;
X is —CO—, if Y is —NH—;

Y is —O—or —NH—;
R1 is hydrogen or methyl;
R2 are identical or different C2-C6-alkylene radicals;
R3 is H or C1-C4 alkyl;
n is an integer from about 15 to about 60,
ii. from about 1 to about 40% by weight of the cationic polymer of at least one quaternized nitrogen-containing monomer, selected from the group consisting of at least one of the monomers of the formula IIa to IId (monomer (B))

in which the variables have the following meanings:
R is C1-C4 alkyl or benzyl;
R′ is hydrogen or methyl;
Y is —O—or —NH—;
A is C1-C6 alkylene;
X—is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate;
iii. from about 0 to about 15% by weight of the cationic polymer of at least one anionic monoethylenically unsaturated monomer (monomer (C)), and
iv. from about 0 to about 30% by weight of the cationic polymer of at least one other nonionic monoethylenically unsaturated monomer (monomer (D)),
and the cationic polymer has a weight average molecular weight (Mw) from about 25,000 g/mol to about 200,000 g/mol, wherein the weight ratio of monomer (A) to monomer (B) is ≥2:1 and for the case where the copolymer comprises a monomer (C), the weight ratio of monomer (B) to monomer (C) is also ≥2:1, and wherein monomer (A) comprises me

Assignees

• Procter & Gamble

Inventors

• Letzelter Nathalie Sophie
• Ward Glenn Steven
• Scialla Stefano
• Goodwin James Elliot
• Hulskotter Frank
• Ruebenacker Martin
• Flores-Figueroa Aaron

Classifications

• C11D3/3951

  combined with specific additives · CPC title

• C11D3/378

  (Co)polymerised monomers containing sulfur, e.g. sulfonate · CPC title

• C11D3/3776 Primary

  Heterocyclic compounds, e.g. lactam · CPC title

• C11D3/3769

  (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines · CPC title

• C11D3/33

  Amino carboxylic acids · CPC title