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Composition for aqueous coating liquid containing n-vinylcarboxylic acid amide polymer

A technology of vinyl carboxylic acid amide and composition, applied in the direction of coating, device for coating liquid on the surface, latex paint, etc., can solve the problems of low concentration of thickening and dispersing agent, no disclosure and implied drying, etc. The effect of improving hydrophilicity and dryness

Active Publication Date: 2021-04-30
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it improves the binding properties of the positive electrode active materials to each other and to the positive electrode active material and the current collector, the concentration of the thickening dispersant in the positive electrode slurry is low, and there is no disclosure or suggestion of drying.

Method used

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  • Composition for aqueous coating liquid containing n-vinylcarboxylic acid amide polymer
  • Composition for aqueous coating liquid containing n-vinylcarboxylic acid amide polymer

Examples

Experimental program
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Effect test

Embodiment

[0106] Hereinafter, although an Example demonstrates this invention, this invention is not interpreted in any way limited to them.

manufacture example

[0108] Polymerization of N-vinylacetamide

[0109] A nitrogen vent tube, a stirrer, a solvent dripping device, and a thermometer were installed in four detachable flasks with a capacity of 1 liter. 550 g of ion-exchanged water was added to the detachable flasks, and N-vinylacetamide (Showa Denko Co., Ltd.) 50 g. In this state, nitrogen replacement in the solution is carried out while stirring and heating, and the polymerization initiation temperature is raised to 51°C, and the initiator 2,2'-azobis[N-(carboxyethyl)-2-methylpropane Amidine] tetrahydrate (hereinafter, VA-057) 0.04 g (total monomer ratio 0.08% by mass) was charged in a state dissolved in 10 g of ion-exchanged water degassed with nitrogen. In this state, the polymerization reaction was carried out for 4 hours, and then the internal temperature was raised to 80°C and kept for 1 hour, and then a sample was taken, and the residual monomer was measured by the HPLC method, and the reaction was defined as the time wh...

Embodiment 1～16

[0137] The polymer aqueous solution of 5% by mass of N-vinylacetamide obtained in the production example, and the 5% by mass aqueous solution of the polysaccharides shown in Table 1 were mixed at 25°C according to the mixing ratio in Table 1. Stirring and homogenization were performed in the same container to prepare a composition for an aqueous coating liquid. In addition, in Example 16, alumina was mixed in the ratio of Table 1 after homogenization.

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Abstract

Proposed is a configuration that permits efficient drying when producing a coating from an aqueous composition containing an N-vinylcarboxylic acid amide polymer. This composition for an aqueous coating liquid contains at least an N-vinylcarboxylic acid amide polymer, a polysaccharide, and water.

Description

technical field [0001] The present invention relates to the composition comprising the polymer of N-vinyl carboxylic acid amide as a water-soluble polymer, and mainly relates to coatings, inks, adhesives, positive poles, negative poles, and A composition capable of forming an easy-to-dry coating on the construction surface among water-based coating liquids such as separators. Background technique [0002] In all industrial fields, coating and printing technologies using water-soluble polymers have begun to be widely used from the viewpoint of the environment, safety, and efficiency. In particular, a water-based coating liquid using a water-soluble polymer is excellent when thinning the film, and the industrial advantage is very large. [0003] Among them, poly-N-vinylacetamide (hereinafter, sometimes referred to as PNVA (registered trademark)), which is one kind of polymer of N-vinylcarboxamide, also has amphiphilicity, and it is easy to increase the molecular weight, incre...

Claims

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Application Information

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IPC IPC(8): C09D139/00B05D7/24C09D5/02C09D7/61C09D101/10C09D103/00C09D105/00
CPCB05D7/24C09D5/02C09D7/61C09D101/10C09D105/00C09D103/00C09D139/00C08K2003/0812
Inventor 菅原笃小西淳
Owner SHOWA DENKO KK
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