Detergents and cleaning agents having improved performance

Patent metadata

Field	Value
Publication number	US-10876076-B2
Application number	US-201916270123-A
Country	US
Kind code	B2
Filing date	Feb 7, 2019
Priority date	Aug 8, 2016
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A method for use of substituted dihydroxyterephthalic acid amides in detergents and cleaning agents, for improving detergent or cleaning performance with respect to bleachable stains.

First claim

What is claimed is:

1. A method for treating stained textiles comprising the step of contacting the stained textile in a wash liquor with a compound of general formula (I),

in which m and n, independently of one another, represent 1 to 2 and A and B, independently of one another, represent —N + R 1 R 2 R 3 X − , —SO 3 H or —SO 3 − Y + , and R 1 , R 2 and R 3 , independently of one another, represent H or a straight-chain or branched-chain aliphatic hydrocarbon functional group having 1 to 3 carbon atoms, X − represents an anion and Y + represents an alkali metal cation or an ammonium ion, wherein said compound of general formula (I) is present in washing or cleaning agents.

2. The method according to claim 1 , wherein the stained textile comprises a stain consisting of polymerizable substances selected from polyphenolic dyes.

3. The method according to claim 2 , characterized in that the stain is selected from stains caused by cherries, morello cherries, grapes, apples, pomegranates, chokeberries, plums, sea buckthorns, acai, kiwifruit, mango, grass, berries, coffee, tea, red cabbage, blood orange, eggplant, tomato, carrots, beetroot, spinach, paprika, red or blue potatoes, or red onions.

4. The method according to claim 1 , characterized in that, in the compounds of general formula (I), A and B are the same or are not oppositely charged.

5. The method according to claim 1 , characterized in that, in the compounds of general formula (I), X − is selected from the group consisting of lactate, citrate, tartrate, succinate, perchlorate, tetrafluoroborate, hexafluorophosphate, alkyl sulfonate, alkyl sulfate, hydrogen sulfate, sulfate, dihydrogen phosphate, hydrogen phosphate, phosphate, isocyanate, thiocyanate, nitrate, fluoride, chloride, bromide, hydrogen carbonate and carbonate and mixtures of at least two thereof.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Kropf Christian
• Jeschke Rainer
• Schaefer Sascha
• Umbreit Christian
• Schulz Alexander
• Strotz Michael

Classifications

• C11D3/32 Primary

  Amides; Substituted amides · CPC title

• C11D7/3263

  Amides or imides · CPC title

• C11D3/3915

  Sulfur-containing compounds · CPC title

• C11D7/22

  Organic compounds · CPC title

• C11D3/30

  Amines; Substituted amines {; Quaternized amines} · CPC title