Invention Grant
- Patent Title: Optical film
- Patent Title (中): 光学胶片
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Application No.: US13613699Application Date: 2012-09-13
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Publication No.: US08455611B2Publication Date: 2013-06-04
- Inventor: Tetsuya Motoyoshi , Masatoshi Ando , Akiko Washizu
- Applicant: Tetsuya Motoyoshi , Masatoshi Ando , Akiko Washizu
- Applicant Address: JP Tokyo
- Assignee: Teijin Chemicals Ltd.
- Current Assignee: Teijin Chemicals Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2008-310734 20081205; JP2009-076412 20090326
- Main IPC: C08G64/00
- IPC: C08G64/00
Abstract:
An optical film comprising a copolycarbonate composed of 25 to 90 mol % of unit (A) of the following formula, and 10 to 75 mol % of unit (B) of the following formula, wherein the substituents are defined herein, and the optical film satisfies the following expression (1), R(450)
Public/Granted literature
- US20130005939A1 OPTICAL FILM Public/Granted day:2013-01-03
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