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Solid cleaning agent composition

A technology of solid cleaning agent and composition, applied in the directions of detergent composition, surface active detergent composition, cleaning composition bleaching agent, etc. Keeps foaming, high cleaning power and strong degreasing effect

Inactive Publication Date: 2016-02-17
NIITAKA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These deposits are called scale, and are known to cause problems such as reducing the cross-sectional area of ​​the piping to reduce cleaning efficiency, and significantly reducing thermal efficiency when depositing in the heating part of the cleaning liquid, etc.

Method used

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  • Solid cleaning agent composition
  • Solid cleaning agent composition
  • Solid cleaning agent composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0210] (Manufacture example 1) Manufacture of (A-1)

[0211] As a nonionic surfactant, there are 1 to 400 polyoxyalkylene alkyl ethers (manufactured by ADEKA Co., Ltd., ADEKANOLB722) (140 g) having oxyalkylene groups in the range of 1 to 400 and hydroxyl groups at the end of the alkylene oxide group. To the methyl chloride solution (50 ml), 20 g of dihydropyran (DHP) and 1 mol% p-toluenesulfonic acid as a catalyst were added, and stirred at room temperature overnight (10 hours). Sodium bicarbonate was added to complete the reaction, and after filtration, the solvent and unreacted dihydropyran were distilled off to obtain the target product.

[0212] The obtained product is the nonionic surfactant (A-1) which the terminal hydroxyl group of the said nonionic surfactant and DHP reacted, and which has an acetal structure at the terminal.

manufacture example 2

[0213] (Manufacture example 2) Manufacture of (A-2)

[0214] Polyoxyalkylene alkyl ether (manufactured by ADEKA Co., Ltd., ADEKANOLBO-922) (110 g) having 1 to 400 oxyalkylene groups as a nonionic surfactant and having a hydroxyl group at the end of the alkylene oxide group ) in dichloromethane solution (50 ml), add 18 g of ethyl vinyl ether and 1 mol% p-toluenesulfonic acid as a catalyst, and stir at room temperature overnight (10 hours). Sodium bicarbonate was added to complete the reaction, and after filtration, the solvent and unreacted ethyl vinyl ether were distilled off to obtain the target product.

[0215] The obtained product is the nonionic surfactant (A-2) which the terminal hydroxyl group of the said nonionic surfactant reacted with ethyl vinyl ether, and which has an acetal structure at the terminal.

manufacture example 3

[0216] (Manufacture example 3) Manufacture of (A-3)

[0217] Polyoxyalkylene alkyl ether (manufactured by ADEKA Co., Ltd., ADEKANOLB-2020) (300 g) having oxyalkylene groups within the range of 1 to 400 as a nonionic surfactant and having a hydroxyl group at the end of the alkylene oxide group ) in dichloromethane solution (50 ml), add 17 g of 2,3-dihydrofuran and 1 mol% p-toluenesulfonic acid as a catalyst, and stir at room temperature overnight (10 hours). Sodium bicarbonate was added to complete the reaction, and after filtration, the solvent and unreacted 2,3-dihydrofuran were distilled off to obtain the target product.

[0218] The obtained product is the nonionic surfactant (A-3) which the terminal hydroxyl group of the said nonionic surfactant reacted with 2, 3- dihydrofuran, and the terminal has an acetal structure.

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PUM

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Abstract

This cleaning agent composition is characterized by containing the following (A) and (B) components: (A) a nonionic surfactant having a structure represented by general formula (1) on an end thereof; and (B) one or more types of alkali agent selected from a group consisting of an alkali metal hydroxide, an alkali metal salt of a metasilicic acid, an alkali metal salt of a sesquisilicic acid, an alkali metal salt of an orthosilicic acid, an alkali metal salt of an orthophosphoric acid, an alkali metal salt of a pyrophosphoric acid, an alkali metal salt of a tetraphosphoric acid, an alkali metal salt of a pentaphosphoric acid, an alkali metal salt of a hexaphosphoric acid, and an alkali metal salt of a carboxylic acid. (In the formula, R1 represents a hydrogen atom or an alkyl group, R2 and R3 represent hydrocarbon groups which may contain an ether bond and may form a ring, AO represents an oxyalkylene group which may be identical or different, and n represents the average number of added moles of the oxyalkylene group, and is a number between 1 and 400, inclusive.)

Description

technical field [0001] The present invention relates to solid detergent compositions. Background technique [0002] As detergent compositions for automatic dishwashers, compositions containing surfactants are often used. However, when washing with automatic dishwashers, a large amount of foam is generated, and the foam overflows, causing malfunctions of the device and the like. In addition, the detergency may decrease due to generation of foam. [0003] Therefore, the cleaning composition for automatic dishwashers requires low foaming properties. [0004] In order to suppress generation of foam, the method of using the nonionic surfactant as described in patent document 1 is known. [0005] The detergent composition described in Patent Document 1 contains a nonionic surfactant that has cleaning power such as penetrating, emulsifying, and dispersing on stains, and exhibits low foaming properties, and exhibits saponification of oils and fats and chelation of metal ions. etc...

Claims

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Application Information

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IPC IPC(8): C11D1/72C11D1/722C11D3/06C11D3/08C11D3/395C11D17/06
CPCC11D1/72C11D1/722C11D3/04C11D3/044C11D3/06C11D3/08C11D17/06
Inventor 森田将基伊藤纱菜黑瀬健朝日薫
Owner NIITAKA
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