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Patent Searching and Data


Title:
WATER-SOLUBLE FILM AND PACKAGE
Document Type and Number:
WIPO Patent Application WO/2020/138440
Kind Code:
A1
Abstract:
[Problem] To provide a water-soluble film with which it is possible to inhibit the occurrence of adhesion between films while maintaining an excellent water solubility, and a package in which the water-soluble film is used. [Solution] This water-soluble film contains a polyvinyl alcohol-based resin. Where Fd1 represents the crystallinity index calculated using a diamond prism and Fg1 represents the crystallinity index calculated using a germanium prism when FT-IR measurement is made using the ATR method on a first surface of the water-soluble film, Fd1 and Fg1 satisfy the relationships Fd1 ≤ 0.65 and Fd1/Fg1 < 1. Fd1 preferably satisfies Fd1 ≥ 0.25.

Inventors:
OKAMOTO MINORU (JP)
SHIMIZU SAYAKA (JP)
KAZETO OSAMU (JP)
Application Number:
PCT/JP2019/051489
Publication Date:
July 02, 2020
Filing Date:
December 27, 2019
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
B65D65/46; C08J5/18
Domestic Patent References:
WO2014050696A12014-04-03
WO2016084836A12016-06-02
WO2016190235A12016-12-01
Foreign References:
JP2014016649A2014-01-30
JP2015003524A2015-01-08
JPH06138321A1994-05-20
Other References:
N.A. PEPPAS, MACROMOL. CHEM., vol. 178, 1977, pages 595
See also references of EP 3904232A4
Attorney, Agent or Firm:
KOMAI Shinji et al. (JP)
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