Title:
POLYESTER FILM FOR MOLD RELEASE FILM
Document Type and Number:
WIPO Patent Application WO2005056291
Kind Code:
A8
Abstract:
A polyester film for mold release film that realizes implementation of precision inspection in the inspection of polarizing plate according to the cross-Nicol method, inhibiting the transfer of polyester oligomer to pressure sensitive adhesive layer. There is provided a polyester film for mold release film characterized in that at least one surface of the polyester film has a coat layer of 50 or less defects/m<2>, the amount of polyester oligomer extracted from the coat layer after heating at 150°C for 10 min being 0.3 mg/m<2> or less, and that the polyester film has a slope of orientation main axis (orientation angle) of 8° or less. Further, there are provided a mold release film for polarizing plate separator characterized in that a mold release layer is superimposed on the polyester film and a polyester film for polarizing plate protection film comprised of the polyester film.
Inventors:
OKUMURA HIROTERU (JP)
Application Number:
PCT/JP2004/017377
Publication Date:
September 01, 2005
Filing Date:
November 24, 2004
Export Citation:
Assignee:
MITSUBISHI POLYESTER FILM CORP (JP)
OKUMURA HIROTERU (JP)
OKUMURA HIROTERU (JP)
International Classes:
B32B27/00; B32B27/36; C08J7/043; C08J7/044; C08J7/046; C09J7/02; (IPC1-7): B32B27/36
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