PROCESS FOR PRODUCING AQUEOUS EMULSION OF SILICONE GRAFT COPOLYMER

Title:

PROCESS FOR PRODUCING AQUEOUS EMULSION OF SILICONE GRAFT COPOLYMER

Document Type and Number:

WIPO Patent Application WO/1994/006838

Kind Code:

A1

Abstract:

A process for producing an aqueous emulsion of a silicone graft copolymer by forming an emulsion of particles having a diameter of 0.5 mum or less from a silicone (macromonomer) having a radical-polymerizable functional group and another vinyl monomer by dispersing the monomers in water in the presence of a surfactant having a radical-polymerizable functional group and copolymerizing the monomers by heating, wherein the macromonomer contains 5-80 wt. % of a macromonomer having less than 20 repeating silicone structure units. The process can provide an aqueous emulsion excellent in stability, water repellency and mold release characteristics, because the features of the silicone component can be fully exhibited while retaining a high reactivity. The obtained emulsion can be widely used in the fields of coating resin, paper converting agent, textile finishing agent, film converting agent, civil engineering resin, adhesive, pressure-sensitive adhesive, mortar binder, concrete binder, and so forth.

Inventors:

DOI YUKIO (JP)
ZHANG WEI-ZHONG (JP)
KINUGASA MASAYOSHI (JP)

Application Number:

PCT/JP1993/000512

Publication Date:

March 31, 1994

Filing Date:

April 20, 1993

Export Citation:

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Assignee:

SHOWA HIGHPOLYMER (JP)
DOI YUKIO (JP)
ZHANG WEI ZHONG (JP)
KINUGASA MASAYOSHI (JP)

International Classes:

C08F230/08; C08F2/24; C08F2/44; C08F30/08; C08F283/12; C08F290/00; C08F290/06; C08F299/08; (IPC1-7): C08F299/08; C08F2/24

Foreign References:

JPS55108881A	1980-08-21
JPS60233162A	1985-11-19

Other References: