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Title:
TRANSPARENT FILM
Document Type and Number:
WIPO Patent Application WO/2014/034200
Kind Code:
A1
Abstract:
Provided is a cyclic olefin resin film which has heat resistance and improved brittleness. A heat-resistant transparent film which has an internal haze value of 1.0% or less and contains a cyclic olefin resin having a refractive index of n1 and a glass transition temperature (Tg) of 170°C or more and a styrene elastomer that has a refractive index of n2 so that ∆n = |n2 - n1| is 0.012 or less. It is preferable for the heat-resistant transparent film to contain two or more kinds of styrene elastomers, and the cyclic olefin resin is preferably a copolymer of norbornene and ethylene.

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Inventors:
KUNIMOTO EIKI (JP)
Application Number:
PCT/JP2013/064471
Publication Date:
March 06, 2014
Filing Date:
May 24, 2013
Export Citation:
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Assignee:
POLYPLASTICS CO (JP)
International Classes:
C08J5/18; C08L45/00
Domestic Patent References:
WO2004035688A12004-04-29
Foreign References:
JP2005113026A2005-04-28
JP2004156048A2004-06-03
JP2007154074A2007-06-21
JP2001302889A2001-10-31
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)
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