THERMOPLASTIC RESIN COMPOSITION, OPTICAL FILM, AND PROCESS FOR PRODUCING FILM

WIPO Patent Application WO/2006/073102

A1

A thermoplastic resin composition which is inhibited from suffering phase separation and readily gives an optical film having excellent transparency; an optical film comprising the composition as a major ingredient; a retardation film which is a film formed by stretching the optical film, shows a positive wavelength dependence, and has a low photoelastic coefficient and transparency; and a process for producing the retardation film. The thermoplastic resin composition comprises (A) a cyclic-olefin polymer and (B) a vinyl polymer having a unit represented by the following general formula (II). (II) (III) (In the formula (II), at least one of R¹ to R⁴ represents a group represented by the general formula (III), and the remainder of R¹ to R⁴, if any, and R⁵ and R⁶ each represents hydrogen, halogeno, a (substituted) hydrocarbon group optionally having a connecting group containing a heteroatom, or a polar group, provided that R⁵ and R⁶ may be bonded to each other to form a monocyclic or polycyclic group optionally having a heteroatom or may in cooperation represent a divalent hydrocarbon group; and Y represents a divalent hydrocarbon group.)

MIYAKI NOBUYUKI (JP)
MIYAMOTO YOSHIKAZU (JP)
KAWASHIMA NAOYUKI (JP)
KAJIWARA ICHIRO (JP)
YOSHIDA SOICHI (JP)

PCT/JP2005/023977

July 13, 2006

December 27, 2005

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JSR CORP (JP)
MIYAKI NOBUYUKI (JP)
MIYAMOTO YOSHIKAZU (JP)
KAWASHIMA NAOYUKI (JP)
KAJIWARA ICHIRO (JP)
YOSHIDA SOICHI (JP)

C08L65/00; C08J5/18; C08L33/24; G02B5/30

JPH11323098A	1999-11-26
JP2000219725A	2000-08-08

Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo, JP)

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