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Synthetic resin emulsion composition

A technology of synthetic resin emulsion and composition, applied in the direction of coating, etc., which can solve problems such as gelation, difficulty in use, and lack of storage stability

Active Publication Date: 2008-06-04
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, a polymer compound having three or more hydrazine groups in its structure tends to gel in a short period of time when mixed with a synthetic resin emulsion as in the past, and is sometimes difficult to handle due to lack of storage stability.
In addition, the above-mentioned polyvinyl alcohol having a diacetone group is rather cumbersome to manufacture, and its use is disadvantageous in terms of cost.

Method used

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  • Synthetic resin emulsion composition
  • Synthetic resin emulsion composition

Examples

Experimental program
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Effect test

Embodiment 1

[0113] In the synthetic resin emulsion 1, a 50% by weight aqueous solution of the hydrazine compound APA-P950 (trade name) (a hydrazine group-containing polymer compound with a molecular weight of approximately 90,000: manufactured by Otsuka Chemical Co., Ltd.) was added while stirring to make the hydrazine compound relative to diacetone The molar ratio of acrylamide is 1, and the mixing is performed.

Embodiment 2～8

[0115] In the same manner as in Example 1, the synthetic resin emulsions 1 to 4 were mixed according to the composition of Table 3.

Embodiment 9

[0117] To 100 parts of emulsion powder 1, add hydrazine compound APA-P950 (trade name) (a hydrazine group-containing polymer compound with a molecular weight of approximately 90,000: manufactured by Otsuka Chemical Co., Ltd.) so that the molar ratio of the hydrazine compound to diacetone acrylamide is 1 , And mixed to form a powder composition. Fully stir and add 100 parts of the powder composition in a container containing 200 parts of water, stir until it becomes a uniform emulsion state, and use it for an evaluation test.

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Abstract

The object of the present invention is to provide a room temperature cross-linkable synthetic resin emulsion composition, even if it uses a polymer compound having three or more hydrazine groups in the structure that can form a three-dimensional cross-linked structure as a cross-linking agent, it will not produce It gels and is excellent in storage stability. In addition, when it is applied to various applications, it is excellent in various physical properties such as water resistance and coating film strength. The synthetic resin emulsion composition of the present invention contains a water-soluble polymer compound, a carbonyl group-containing acrylate resin, and a hydrazine group-containing polymer compound having a weight average molecular weight of 5,000 or more and having three or more hydrazine groups in the molecule. The emulsion composition is excellent in various physical properties such as water resistance.

Description

Technical field [0001] The present invention relates to a room temperature crosslinked synthetic resin emulsion composition excellent in various physical properties such as water resistance. Background technique [0002] In the field of synthetic resin emulsions, it is known to crosslink a carbonyl group-containing copolymer with a compound having a hydrazine group to improve its water resistance and other physical properties. Especially in aqueous synthetic resin emulsions, it is actively used as a method for improving physical properties. The synthetic resin emulsion is dispersed in an aqueous medium by the emulsifier of the hydrophilic component, so there is a limit to improving the water resistance when used alone. Therefore, as described above, by forming a polymer cross-linked structure, the physical properties of the emulsion can be improved. In particular, the cross-linking of the carbonyl group and the hydrazine group can easily form a cross-linked structure at room temp...

Claims

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Application Information

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IPC IPC(8): C08L33/26C08L101/14
CPCC08L29/06C09D133/26
Inventor 吉村延能
Owner MITSUBISHI CHEM CORP
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