ACRYLIC RESIN FILM AND PRODUCTION METHOD THEREFOR

Title:

ACRYLIC RESIN FILM AND PRODUCTION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2018/062378

Kind Code:

A1

Abstract:

A method comprising obtaining a latex containing a multilayer-structure acrylic polymer by emulsion polymerization, coagulating the latex containing the multilayer-structure acrylic polymer to obtain a slurry, washing and dehydrating the slurry, drying the dehydrated slurry to obtain the multilayer-structure acrylic polymer, melting a mixture of 0-35 mass% of an acrylic resin and 65-100 mass% of the multilayer-structure acrylic polymer, and subjecting the melted mixture to extrusion molding, to obtain a resin film. The resin film contains the multilayer-structure acrylic polymer. The acid value of the acetone-insoluble fraction of the resin film is 0.018 mmol/g or less. The acid value of the acetone-soluble fraction of the resin film is 0.012 mmol/g or less. The resin film has a glass transition temperature of 80°C or higher, and a thickness of 5-300 μm.

Inventors:

NIIMURA TAKURO (JP)
YAMASHITA TAKETOMO (JP)
NAKAHARA ATSUHIRO (JP)
FUJII NARIAKI (JP)
MATSUI TOMOYUKI (JP)

Application Number:

PCT/JP2017/035197

Publication Date:

April 05, 2018

Filing Date:

September 28, 2017

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

C08J5/18; B32B27/30; C08F265/06; C08L33/06; C08L51/00

Domestic Patent References:

WO2012053190A1

2012-04-26

Foreign References:

US4508875A	1985-04-02
JPS57140161A	1982-08-30
JPH1171437A	1999-03-16
JP2005163003A	2005-06-23
JP2000191804A	2000-07-11
JP2003277528A	2003-10-02
JP2009073984A	2009-04-09
JP2004263034A	2004-09-24

Other References: