Detergent assistant with fumaric acid serving as main synthesis raw material and preparation method of detergent assistant

A technology of builder and fumaric acid, which is applied in the direction of washing compositions containing organic compounds, soap detergents and other compounding agents, organic washing compositions, etc., can solve the problem that the washing performance cannot be further improved, affecting the washing effect, Low reactivity and other problems, to achieve the effect of easy polymerization reaction, reduced reaction time and low reaction temperature

Inactive Publication Date: 2016-05-11
SHANGHAI DONGSHENG NEW MATERIALS
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a builder, polyacrylic acid polymer has strong chelating power, but poor dispersing power, which cannot better prevent the redeposition of eluted dirt, and its application in the field of builders is limited; maleic anhydride-acrylic acid copolymer Compared with polyacrylic acid, the dispersing force is g

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detergent assistant with fumaric acid serving as main synthesis raw material and preparation method of detergent assistant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 2kg of deionized water and 6kg of fumaric acid into the reactor. When the temperature rises to 70°C while stirring, add acrylic acid and 4kg of initiator potassium persulfate dropwise at the same time. The reaction time is 2h; Neutralize to neutral with 125kg sodium hydroxide solution to obtain fumaric acid-acrylic acid builder.

Embodiment 2

[0026] Add 2.5kg deionized water and 8kg fumaric acid into the reactor, and when the temperature rises to 80°C while stirring, add acrylic acid and 5kg initiator sodium persulfate dropwise at the same time, and the reaction time is 2.5h; After completion, use 125kg of sodium hydroxide solution to neutralize to neutral to obtain fumaric acid-acrylic acid builder.

Embodiment 3

[0028] Add 3kg of deionized water and 6kg of fumaric acid into the reactor. When the temperature rises to 75°C while stirring, add acrylic acid and 4kg of initiator potassium persulfate dropwise at the same time. The reaction time is 1.5h; Then neutralize to neutral with 130kg sodium hydroxide solution to obtain fumaric acid-acrylic acid builder.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a detergent assistant with fumaric acid serving as a main synthesis raw material and a preparation method of the detergent assistant. According to the method, fumaric acid is used for replacing maleic anhydride used in the conventional synthesized detergent assistant; in the polymerization reaction of fumaric acid and crylic acid, hydrolysis is not required, so that the reaction time is shortened, and the energy consumption is reduced. Meanwhile, in the preparation method, water is used as a solvent instead of a toxic and harmful solvent; after being distilled, the water is not recycled, and no solvent is retained in the product; the production process is simplified, the energy consumption is low, and the equipment utilization rate is high; the preparation method is suitable for large-scale production.

Description

technical field [0001] The invention relates to a builder, in particular to a builder with fumaric acid as the main synthetic raw material and a preparation method thereof. Background technique [0002] Polycarboxylate polymers have excellent chelating and dispersing effects, and are widely used in the fields of detergents and water treatment. In the field of washing, they mainly have dispersing effects. As a washing aid, it should have the following characteristics: alkaline buffering effect, even if there is a small amount of acidic substances, the pH of the washing liquid will not change significantly due to the action of the aid, and there is still a strong decontamination effect; it has the ability to make dirt Disperse in water and prevent dirt from reattaching and depositing on fabrics; polycarboxylate polymers have a large number of carboxylate groups on the side chains, so they have strong particle chelating ability and soften hard water ability. In view of the exc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F220/06C08F222/02C11D3/37C11D7/26C11D9/26
Inventor 施晓旦王虎杨立滨金霞朝
Owner SHANGHAI DONGSHENG NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap