AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION AND METHOD FOR PREPARING SAID AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION

Title:

AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION AND METHOD FOR PREPARING SAID AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION

Document Type and Number:

WIPO Patent Application WO/2016/190325

Kind Code:

A1

Abstract:

Provided are: an aqueous gel-containing resin particle emulsion which has a suppressed tendency to separation-sedimentation, has excellent storage stability, and can be effectively utilized in industrial applications despite having a particle diameter of at least 500 nm or even at least 1000 nm; and a method for reliably preparing the aqueous gel-containing resin particle emulsion having excellent properties by using a simple method in which polymerization stability is excellent. This aqueous gel-containing resin particle emulsion contains particles each comprising: a core portion which is composed of a (meth)acrylic copolymer having an acid value of 200-400 mgKOH/g and is alkali-swellable; and a resin portion which encloses the core portion and includes the outermost layer of the particle, wherein the outermost layer is composed of a hydrophobic monomer and is not alkali-swellable. The core portion is a solvent-containing aqueous gel, the thickness of the resin portion is about 5% or less of the particle diameter, and the particles have an average particle diameter of 500-5000 nm, inclusive. Said method is used for preparing this emulsion.

Inventors:

KANEDAI SHUICHI (JP)
KIJIMA KENJI (JP)
KOZUKA JUNPEI (JP)

Application Number:

PCT/JP2016/065377

Publication Date:

December 01, 2016

Filing Date:

May 25, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SAIDEN CHEMICAL IND CO LTD (JP)

International Classes:

C08F265/06; C08F2/26; C08F2/44; C09K23/02; C09K23/42; C09K23/52

Foreign References:

JP5939495B1	2016-06-22
JP5971665B1	2016-08-17
JPH06248012A	1994-09-06
JPH05222108A	1993-08-31
JPH0625314A	1994-02-01
JP2007518550A	2007-07-12
JP2774145B2	1998-07-09
JP2679523B2	1997-11-19
JPH0335423B2	1991-05-28

Other References: