Title:
POLYVINYL ACETAL RESIN FILM AND MULTILAYER BODY CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2020/067176
Kind Code:
A1
Abstract:
The present invention relates to a polyvinyl acetal resin film which is composed of a polyvinyl acetal resin material, and which is configured such that: the relative diffuse reflectance of at least one surface at the wavelength of 550 nm is 3% or more; the absolute value of the difference between the relative diffuse reflectance of one surface at the wavelength of 550 nm and the relative diffuse reflectance of the other surface at the wavelength of 550 nm is 0.5% or more; and the amount of a plasticizer in the polyvinyl acetal resin film is 0-20% by mass based on the total mass of the polyvinyl acetal resin film.
Inventors:
KOBAYASHI TAKUYA (JP)
ISOUE KOICHIRO (JP)
YASUDA HIROTAKA (JP)
ISOUE KOICHIRO (JP)
YASUDA HIROTAKA (JP)
Application Number:
PCT/JP2019/037630
Publication Date:
April 02, 2020
Filing Date:
September 25, 2019
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08J5/18; B29C48/28; B29C48/35; B29C59/04; B32B27/30; C03C27/12
Domestic Patent References:
| WO2015019452A1 | 2015-02-12 | |||
| WO2015019445A1 | 2015-02-12 | |||
| WO2018181386A1 | 2018-10-04 | |||
| WO2004063231A1 | 2004-07-29 | |||
| WO2003020776A1 | 2003-03-13 |
Foreign References:
| JP2016539905A | 2016-12-22 | |||
| JPS6161835A | 1986-03-29 | |||
| JPH09164592A | 1997-06-24 | |||
| JPH06210729A | 1994-08-02 | |||
| JP2004155110A | 2004-06-03 | |||
| JP2011152693A | 2011-08-11 | |||
| JP2017214276A | 2017-12-07 | |||
| JP2000290046A | 2000-10-17 | |||
| EP1527107B1 | 2007-06-13 | |||
| EP1606325A1 | 2005-12-21 |
Other References:
See also references of EP 3858896A4
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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