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Patent Searching and Data


Title:
POLYVINYL ALCOHOL FILM AND METHOD FOR PRODUCING POLYVINYL ALCOHOL FILM
Document Type and Number:
WIPO Patent Application WO/2023/127874
Kind Code:
A1
Abstract:
The present invention provides: a PVA film which is able to be stretched at a high stretching ratio even at high temperatures; and a method for producing the PVA film. The present invention provides a PVA film which is characterized in that if the heat flow of this PVA film is measured by means of a differential scanning calorimeter in the presence of water, the melting end temperature thereof is not less than 93°C but less than 96°C.

Inventors:
KOBAYASHI SHINZO (JP)
KAZETO OSAMU (JP)
ISOZAKI TAKANORI (JP)
Application Number:
PCT/JP2022/048148
Publication Date:
July 06, 2023
Filing Date:
December 27, 2022
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
C08J5/18; G02B5/30; G02F1/1335
Domestic Patent References:
WO2019054487A12019-03-21
WO2012132984A12012-10-04
WO2013146147A12013-10-03
Foreign References:
JP2012032789A2012-02-16
JPH10325905A1998-12-08
Attorney, Agent or Firm:
LIGHTHOUSE INTERNATIONAL PATENT FIRM (JP)
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