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Emulsion composition

一种乳液组合物、乳液的技术，应用在乳胶漆、粘合剂类型、有机物质导体等方向，能够解决膜机械强度降低、剥离、耐性降低等问题，达到提高磺酸基含量、提高低电阻性、充分耐水性的效果

Inactive Publication Date: 2007-02-21
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, polymers containing sulfonic acid groups, in terms of the hydrophilicity of their hydrophilic groups, in other words, in terms of water solubility, when the content of hydrophilic groups is high to a certain extent or above When used, the resistance to water will be greatly reduced. For example, when used as a film material, adhesive material or coating material, it will swell significantly in the presence of water. As a result, the mechanical strength of the film will be greatly reduced, or it will be easily Delamination from the base material reduces the durability
Therefore, the content of sulfonic acid groups is limited, so that the characteristics of low resistance and hydrophilicity cannot be fully utilized.
[0006] In addition, when the solvent is volatilized from the polymer solution, there is a film-forming problem that foaming becomes a defect after drying.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0088] Hereinafter, the present invention is illustrated by examples, but the present invention is not limited by these examples. "Parts" and "%" in the following examples and comparative examples mean parts by weight and % by weight unless otherwise specified. In addition, various evaluations and measurements in Examples were carried out by the following methods.

[0089]

[0090] (Determination of the amount of sulfonic acid groups)

[0091] The amount of sulfonic acid groups was measured for the obtained solution by acid-base titration using phenolphthalein as an index reagent and potassium hydroxide ethanol solution as a base.

[0092] (measurement of density)

[0093] The aqueous solution of (C) component and the cyclohexane solution of (D) component are poured into a frame made of tetrafluoroethylene polymer (registered trademark: Teflon), so that the film thickness after drying is about 0.2mm, and the Leave for 24 hours to evaporate the solvent. Next, after heat-p...

Synthetic example 1

[0115] Add 190 parts of water and 3 parts of potassium persulfate into a 1-liter four-necked separable flask with a water bath, a thermometer, a mechanical stirrer, and a nitrogen introduction tube, and replace the gas phase with nitrogen while stirring, then raise the temperature, and when it reaches 70°C, Add 120 parts of water, 70 parts of 2-acrylamide-2-methylpropanesulfonic acid, 10 parts of diacetone acrylamide, and 120 parts of hydroxyethyl methacrylate to the aforementioned separable flask dropwise over 2 hours. portion of the mixture. After the dropwise addition was complete, the liquid temperature was made to reach 80° C., and the stirring was continued for 1 hour to complete the polymerization to obtain an aqueous polymer solution containing 75% of (A) component=water and 25% of polymer (C1) having sulfonic acid groups. The amount of sulfonic acid groups is 3.4mmol / g, and the density is 1.1g / cm 3 .

Synthetic example 2

[0117]Add 30 g of polyethersulfone (SUMIKAEXEL PES5003P manufactured by Sumitomo Chemical Co., Ltd.) and 300 g of concentrated sulfuric acid into a three-necked flask with an inner volume of 1 liter for dissolution, and stir at room temperature for 24 hours to dissolve, then add 15 g of chlorosulfonic acid dropwise to carry out sulfonation. change. Remove the solvent and unreacted sulfuric acid from the product by precipitation purification, then vacuum-dry it, and dissolve it in water to obtain a polymer containing (A) component = 75% of water and 25% of polymer (C2) having a sulfonic acid group aqueous solution. The amount of sulfonic acid groups is 3.7mmol / g, and the density is 1.4g / cm 3 .

[0118]

[0119] According to the method described in JP-A-2003-246817, the hydrogenated product of styrene-butadiene-styrene block copolymer (50% styrene content, molecular weight 100,000, no amino group at the end) is polymerized and purified to obtain Polymer (D1). The density i...

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PUM

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Abstract

An emulsion composition which has a heightened sulfo group content and, despite this, retains sufficient water resistance and which is improved in functions such as low resistance and film-forming properties. The emulsion composition comprises (A) an aqueous solvent, (B) an organic solvent, (C) a sulfo-containing polymer soluble in the ingredient (A), and (D) a polymer which is soluble in the ingredient (B) but insoluble in water. This emulsion composition is improved in the function of attaining low resistance and further has sufficient water resistance and film-forming properties.

Description

technical field [0001] The present invention relates to the emulsion composition containing the water-soluble polymer and the hydrophobic polymer that have sulfonic acid group in the molecule, relate to the coating material that can be used for adhesive agent, coating material, film, battery separator more in detail, Emulsion compositions used preferably in electrolytes for batteries, polymer solid electrolytes for fuel cells, filters, solid capacitors, ion exchange membranes, conductive membranes for various sensors, and the like. Background technique [0002] Polymers having sulfonic acid groups have been known in the past and are used in surfactants, emulsifiers, dispersants, polymer solid electrolytes, ion exchange resins, and the like. In recent years, using the characteristics of dispersibility, hydrophilicity, ion capture, low volume resistivity (hereinafter sometimes referred to as low resistivity), and adhesion to substrates of this hydrophilic group, it is being de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/14C08L101/02C09D5/02C09D5/24C09D201/06H01B1/06H01M8/02C09J101/28C09J105/14H01B1/12
CPCC09J105/14C09D5/022H01B1/122C09J101/28C09D5/24C08L101/02
Inventor 田守功二茂木武志曾根卓男西川昭
Owner JSR CORPORATIOON
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