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Thickening agent as well as preparation method and application thereof

A thickening agent, unsaturated technology, applied in the field of thickening agent for disposable disinfectant, can solve the problems of low manufacturing efficiency, unfavorable to environmental protection, etc. Effect

Active Publication Date: 2022-01-28
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] U.S. US4758641 discloses that one or more carbon 3 to carbon 5 monobasic unsaturated carboxylic acids or salts thereof and up to 15% of one or more other Copolymerizable monomers are prepared in the presence of an organic solvent mixture and an effective amount of a crosslinking agent and an initiator to prepare a polymer. The polymer has strong thickening properties and good transparency, but this process uses an organic solvent, which is not conducive to Environmental protection and low manufacturing efficiency

Method used

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  • Thickening agent as well as preparation method and application thereof
  • Thickening agent as well as preparation method and application thereof
  • Thickening agent as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0050]Add 150g of deionized water, 132g of acrylic acid, 2g of 4wt% TMPTA, and 2.7g of phenylvinylsulfone into a beaker with magnetic stirring, and then slowly add 152g of 32wt% sodium hydroxide solution to neutralize the exotherm , when the temperature drops to 75°C, add 6.5g of V50 solution with 5wt% concentration, transfer the polymerization monomer in the beaker to the polymerization tank of the oven, react in the polymerization tank for 15 minutes, then take out the polymer colloid, and use a granulator Cut the colloid into small particles, dry in an oven at 180°C for 40 minutes, grind and pulverize the dried particles with a wall breaker, and sieve the 0.5-5 μm powder to collect it, which is the required thickener.

[0051] The preparation method of other embodiment and comparative example is with embodiment 1, and used material and consumption see table 1 below:

[0052] Table 1 Materials and dosage

[0053]

[0054]

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Abstract

The invention discloses a thickening agent as well as a preparation method and application thereof. The thickening agent comprises a product prepared by polymerization reaction of the following raw materials: a) an olefinic unsaturated monomer containing carboxyl, b) an inorganic base capable of being neutralized with the component a), c) a vinyl monomer containing sulfuryl, d) a cross-linking agent containing a double-bond compound with at least two degrees of functionality, and e) an oxidizing agent. Due to introduction of sulfuryl-containing hydrophobic monomer, the molecular weight of the polymer can be regulated and controlled, meanwhile, the thickening agent is endowed with extremely high light transmittance, and the product has very high alcohol resistance and can be used in the washing-free disinfectant.

Description

technical field [0001] The invention relates to a thickener, in particular to a thickener which can be used for disposable disinfectant. Background technique [0002] Polymers of unsaturated carboxylic acids and their salts have become widely concerned research topics, such as superabsorbent polymers (SAP) have been studied for many years. These polymers may be homopolymers or copolymers with other monomers. Typical well-known monomers such as acrylic acid, methacrylic acid, maleic acid or maleic anhydride, itaconic acid, and acrylates. For example, in the patent US2798053, it is mentioned that acrylic acid and a small amount of gel-like (especially in the form of its salt) polyolefin polyether cross-linking agent formed copolymers, these copolymers can absorb a large amount of water or Solvents provide a substantial increase in volume, which acts as a thickener. U.S. Patent No. 3940351 and U.S. No. 4,062,817 disclose a kind of unsaturated carboxylic acid and at least one...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F283/06C08F220/28C08F228/02C08F2/10C09K3/00
CPCC08F220/06C08F283/065C08F2/10C09K3/00C08F222/103C08F228/02
Inventor 王晓纪学顺孙家宽
Owner WANHUA CHEM GRP CO LTD
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