Title:
PROCESS FOR PRODUCING STRETCHED ACRYLIC-RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2016/157913
Kind Code:
A1
Abstract:
A process for producing a stretched acrylic-resin film constituted of a composition which comprises 99-50 wt% acrylic resin (A) and 1-50 wt% rubber-containing graft copolymer (B) (the sum of the two is 100 wt%), wherein the component (B) comprises an innermost layer comprising a polymer obtained using a methacrylic ester as a main monomer, an interlayer comprising a polymer obtained using an alkyl acrylate having a C4-12 alkyl group as a main monomer, and one or more outermost layers comprising a polymer obtained using a methacrylic ester as a monomer, the innermost layer and the interlayer constituting a crosslinked elastomer, the crosslinked elastomer having an average particle diameter of 150-400 nm, the process including a step in which an acrylic-resin film constituted of the composition is subjected to transverse stretching or simultaneous biaxial stretching under the conditions of a stretching temperature of (Tg+5)ºC to (Tg+50)ºC (Tg is the glass transition temperature of the acrylic-resin film constituted of the composition).
Inventors:
KOYAMA HARUKI
KITAYAMA FUMINOBU
KITAYAMA FUMINOBU
Application Number:
PCT/JP2016/001875
Publication Date:
October 06, 2016
Filing Date:
March 31, 2016
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J5/18; B29C55/16; C08F265/06; C08L33/00; C08L51/06; G02B5/30; B29L7/00; B29L11/00
Domestic Patent References:
| WO2014041803A1 | 2014-03-20 |
Foreign References:
| JP2011046186A | 2011-03-10 | |||
| JP2011088946A | 2011-05-06 | |||
| JP2009205135A | 2009-09-10 | |||
| JP2015210474A | 2015-11-24 | |||
| JP2016004242A | 2016-01-12 | |||
| JP2016033552A | 2016-03-10 | |||
| JP2015143842A | 2015-08-06 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Patent business corporation Owner old patent firm (JP)
Patent business corporation Owner old patent firm (JP)
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