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Title:
RESIN COMPOSITION, FILM, AND METHODS FOR PRODUCING SAME, MOLDED ARTICLE, AND ARTICLE
Document Type and Number:
WIPO Patent Application WO/2016/139950
Kind Code:
A1
Abstract:
Provided are a resin composition having excellent transparency, surface hardness, and surface smoothness as well as little whitening when heated and a method for producing the resin composition, and a molded article, film, and article having excellent impact resistance. The composition includes a specific ratio of a methacrylic resin (A) having 80 mass% or more structural units derived from methyl methacrylate and a melt viscosity η(A) at a shear velocity of 122/sec at 220°C of 1,500-3,500 Pa⋅s and a triblock copolymer (B) having methacrylic acid ester polymer blocks (b2) bonded to both ends of an acrylic acid ester polymer block (b1). The triblock copolymer (B) has a specific ratio of the acrylic acid ester polymer block (b1) and methacrylic acid ester polymer blocks (b2), and the melt viscosity η(B) of the triblock copolymer (B) at a shear velocity of 122/sec at 220°C is 75-1500 Pa⋅s, and η(A)/η(B) is 1-20.

Inventors:
KODERA JUMPEI (JP)
MAEDA KAORI (JP)
HIGASHIDA NOBORU (JP)
Application Number:
PCT/JP2016/001170
Publication Date:
September 09, 2016
Filing Date:
March 03, 2016
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
C08L33/12; C08F297/02; C08J5/18; C08L53/00
Domestic Patent References:
WO2002081561A12002-10-17
WO2002092696A12002-11-21
WO2010055798A12010-05-20
WO2012057079A12012-05-03
WO2014002506A12014-01-03
WO2014073216A12014-05-15
Foreign References:
JPH10168271A1998-06-23
JP2003277574A2003-10-02
JP2012213911A2012-11-08
JP2013043964A2013-03-04
Other References:
See also references of EP 3266828A4
Attorney, Agent or Firm:
IEIRI, Takeshi (JP)
House ON 健 (JP)
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