Alkoxylated polycarboxylic acid amides

A polycarboxylic acid amide, alkoxylation technology, applied in chemical instruments and methods, preparation of detergent mixture compositions, detergent compounding agents, etc., can solve problems such as insufficient performance and whitening effect, and achieve beneficial biological effects. Degradability, favorable stability, whiteness-enhancing effect

Inactive Publication Date: 2020-02-21
CLARIANT INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, many known anti-redeposition agents suffer from insu

Method used

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  • Alkoxylated polycarboxylic acid amides
  • Alkoxylated polycarboxylic acid amides
  • Alkoxylated polycarboxylic acid amides

Examples

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preparation example Construction

[0067] In the preparation of the alkoxylated polycarboxylic acid amides of the present invention, reaction step 1 is carried out with or without the presence of additional solvent, preferably without the presence of additional solvent.

[0068] Solvents suitable for the reaction of amines with aromatic anhydrides are known to those skilled in the art. These solvents include, but are not limited to, aromatic hydrocarbons such as, but not limited to, benzene, toluene or xylene, aprotic polar solvents such as, but not limited to, anisole, aromatic ethers, high boiling alkyl ethers, di- Methylformamide and Dimethyl Sulfoxide.

[0069] In a preferred embodiment, the amine alkoxide used as a reactant, preferably the amine alkoxide of formula (I), can act as a solvent at the reaction temperature.

[0070] In the preparation of the alkoxylated polycarboxylic acid amides of the present invention, Reaction Step 1 typically employs 0.7 to 1.5 molar equivalents, preferably 0.8 to 1.4 mol...

Embodiment

[0088] The following examples are intended to illustrate the present invention in detail, but are not intended to limit it thereto.

[0089] Trimellitic acid was used as purchased from ACROS Organics. Trimellitic anhydride and pyromellitic acid were used as commercially available from AlfaAesar. Phenoxyethanol, p-toluenesulfonic acid and titanium isopropoxide were used as purchased from Merck. Methanesulfonic acid, 4-dodecylbenzenesulfonic acid isomer mixture and benzyl alcohol were used as purchased from Sigma Aldrich.

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Abstract

Alkoxylated polycarboxylic acid amides are provided obtainable by first reacting an aromatic polycarboxylic acid containing at least three carboxylic acid units or anhydrides derived therefrom, preferably an aromatic polycarboxylic acid containing three or four carboxylic acid units or anhydrides derived therefrom, more preferably an aromatic polycarboxylic acid containing three carboxylic acid units or anhydrides derived therefrom, even more preferably trimellitic acid or trimellitic acid anhydride, most preferably trimellitic acid anhydride, with an amine alkoxylate and in a second step reacting the resulting product with an alcohol or amine or a mixture of alcohols and/or amines, preferably with an alcohol.

Description

technical field [0001] The present invention relates to the field of alkoxylated aromatic polycarboxylic acid amides and methods for their preparation. The alkoxylated aromatic polycarboxylic acid amides can be advantageously used as anti-redeposition agents in washing applications. Background technique [0002] Anti-redeposition agents used in laundry detergents help prevent soils from settling on fabrics after they have been removed during laundering. This can be achieved, for example, by dispersing the soil in the wash liquid. [0003] Laundering soiled fabrics with laundry detergent compositions is essentially a two-step process. In the first stage, the detergent must remove the soil from the fabric and suspend it in the wash liquor. In the second stage, the detergent composition must prevent the redeposition of soils and other insoluble materials on the fabric prior to removal of the fabric from the wash liquor or rinse liquor. Polymers are known to assist both proc...

Claims

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Application Information

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IPC IPC(8): C08G69/00
CPCC08G65/00C08G69/40C11D3/0036C11D3/3719C08G65/3312C08G65/3315C08G65/3326C08G65/3328C11D1/721C11D11/0017
Inventor K·穆齐C·莎夫尔C·布雷法J·迪德里希斯S·罗曼斯基S·N·巴特舍勒
Owner CLARIANT INT LTD
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