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Patent Searching and Data


Title:
POLYVINYL ACETAL RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2019/203349
Kind Code:
A1
Abstract:
Provided is a polyvinyl acetal resin film wherein: the average surface roughness Rz on at least one surface thereof is 3.0 μm or less; the birefringence Δn is 3.0 × 10-4 or less; and the average thickness is 200 μm or less.

Inventors:
ARISHIMA HIROYUKI (JP)
ISOUE KOICHIRO (JP)
YASUDA HIROTAKA (JP)
IGUCHI TOSHIYUKI (JP)
Application Number:
PCT/JP2019/016836
Publication Date:
October 24, 2019
Filing Date:
April 19, 2019
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
C08J5/18; B29C48/88; B32B15/082; B32B17/10; B32B27/30
Domestic Patent References:
WO2016159210A12016-10-06
WO2004063231A12004-07-29
WO2003020776A12003-03-13
Foreign References:
JP2003340851A2003-12-02
JP2016539905A2016-12-22
JP2013224025A2013-10-31
JP2014136796A2014-07-28
JP2013056811A2013-03-28
JP2013516043A2013-05-09
US20160288459A12016-10-06
EP1527107B12007-06-13
EP1606325A12005-12-21
EP1235683B12003-08-20
Other References:
See also references of EP 3783052A4
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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