PRODUCTION OF WATER-SOLUBLE POLYMER GEL

Title:

PRODUCTION OF WATER-SOLUBLE POLYMER GEL

Document Type and Number:

Japanese Patent JPS5911304

Kind Code:

A

Abstract:

PURPOSE: To produce a nonsticky water-soluble polymer gel, by radical-polymerizing an emulsified dispersion containing an aqueous solution of a water-soluble monomer, a hydrophobic organic solvent and a water-in-oil emulsifier.

CONSTITUTION: An emulsified dispersion is obtained by mixing 95W98wt% aqueous solution containing 30W88wt% one or more water-soluble monomers [e.g., (meth)acrylic acid (salt)] with 0.5W4.5wt% hydrophobic organic solvent (e.g., cyclohexane) and 0.5W4.5wt% water-in-oil emulsifier of an HLB≤11 (e.g., sorbitan monostearate). Then, this emulsified dispersion is radical-polymerized at 10W 90°C in the presence of a thermal polymerization initiator (e.g., t-butyl hydroperoxide).

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Inventors:

KADOI YASUHIKO
SHIRAISHI MEIKAI
OGAWA MIKIO

Application Number:

JP12048082A

Publication Date:

January 20, 1984

Filing Date:

July 13, 1982

Export Citation:

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Assignee:

NIPPON KAYAKU KK

International Classes:

C08F2/00; C08F2/32; (IPC1-7): C08F2/32

Attorney, Agent or Firm:

Kazuhiko Takeda

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