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Aqueous resin emulsion

A technology of water-based resin and emulsion, applied in the direction of coating, etc., can solve the problems of not easy to disperse the emulsion, insufficient mechanical stability of the emulsion, etc., and achieve the effect of excellent durability

Pending Publication Date: 2022-08-02
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the following fact can be exemplified as a disadvantage of emulsion polymerization: the mechanical stability of the emulsion will be insufficient because impurities easily enter into the aqueous resin emulsion and it is not easy to disperse the emulsion stably

Method used

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  • Aqueous resin emulsion

Examples

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Embodiment 1

[0158] A monomer emulsion is prepared from various polymerizable unsaturated monomers, then a pre-emulsion is prepared from the monomer emulsion, and an aqueous resin emulsion is synthesized from the pre-emulsion. The specific process is as follows.

[0159] (Preparation of Monomer Emulsion (A))

[0160] As shown in Table 1, 5 parts by mass of (a1-1) MMA, 23 parts by mass of (a1-3) BA, 10 parts by mass of (a1-4) BMA, and 10 parts by mass of (a1-5) CHMA, 2 parts by mass of (a3) ​​AA and 0.3 parts by mass of (a2) 3-methacryloyloxypropyltrimethoxysilane were mixed uniformly to prepare a polymerizable unsaturated monomer (a) solution (50.3 mass parts) share).

[0161] To a solution prepared by uniformly mixing 14 parts by mass of water and 0.1 part by mass of (S1) polyoxyethylene-1-(allyloxymethyl)alkyl ether sulfate ammonium salt, the above-mentioned polymerizable non-polymer was added. The monomer (a) solution is saturated, and then the mixed solution is stirred by a stirrer ...

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Abstract

Disclosed is an aqueous resin emulsion obtainable by multi-stage emulsion polymerization of a plurality of polymerizable unsaturated monomers in the presence of a surfactant, the polymerizable unsaturated monomer (a) being polymerized in stages other than the final stage, and the polymerizable unsaturated monomer (b) being polymerized in the final stage, the surfactant contains a sulfate salt having an allyl group and a polyoxyethylene group, and the aqueous resin emulsion contains a copolymer of a specific polymerizable unsaturated monomer (a) and a copolymer of a specific polymerizable unsaturated monomer (b).

Description

Technical field [0001] The present invention relates to an aqueous resin emulsion obtainable by multi-stage emulsion polymerization, an aqueous resin composition containing the aqueous resin emulsion, and substrates such as paper and plastic coated with the aqueous resin composition. Background technique [0002] Aqueous resin emulsions are prepared by emulsion polymerization of polymerizable unsaturated monomers in the presence of various surfactants. The aqueous resin emulsion thus obtained is used, for example, as a raw material for paints, adhesives, and as coating agents for paper, plastics, and the like. [0003] Emulsion polymerization is superior in terms of environment and safety because it does not require the use of large amounts of organic solvents like solution polymerization, and there is no difficulty in slow cooling like bulk polymerization. However, the following fact can be exemplified as a disadvantage of emulsion polymerization: the mechanical stability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F267/06C08F2/26C08F230/08C08F228/02C08F220/14C09D133/12C09D133/14C09D143/04
CPCC08F220/14C08F267/06C09D133/14C09D133/12C09D143/04C08F2/26C08F220/1806C08F220/1804C08F220/1808C08F220/06C08F230/085C08F228/02C08F265/06C09D5/022C09D4/00C09D151/06C08F2/001C08L33/08C08L33/12C08L2201/52
Inventor 吉田良夫
Owner HENKEL KGAA
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