Title:
AQUEOUS DISPERSION
Document Type and Number:
WIPO Patent Application WO/2023/048069
Kind Code:
A1
Abstract:
According to the present invention, a polylactic acid film obtained by modifying an aqueous dispersion containing a polylactic acid as a dispersion and a polyvinyl alcohol as a dispersing agent achieves high heat sealability and water resistance. The aqueous dispersion, which is for forming a film that contains a polylactic acid in an amount of at least 3 g/m2 (dry weight) with respect to a substrate, comprises a polylactic acid, a polyvinyl alcohol, and water, wherein the polyvinyl alcohol has an average saponification degree of 60.0-82.0 mol%, and the mixing ratio (mass ratio) of the polylactic acid and the polyvinyl alcohol is 98/2-90/10.
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Inventors:
HIRAMATSU HIROSHI (JP)
KATOU YUUKI (JP)
SATOU SEIJI (JP)
ABE YOSHIYUKI (JP)
KAWAMURA SHOUGO (JP)
HAYASHI WAKANA (JP)
KATOU YUUKI (JP)
SATOU SEIJI (JP)
ABE YOSHIYUKI (JP)
KAWAMURA SHOUGO (JP)
HAYASHI WAKANA (JP)
Application Number:
PCT/JP2022/034645
Publication Date:
March 30, 2023
Filing Date:
September 15, 2022
Export Citation:
Assignee:
CHUKYO YUSHI CO LTD (JP)
International Classes:
B32B27/30; B32B27/36; B65D65/40; C09D129/04; C09D167/04; C09J7/35; C09J129/04; C09J167/04
Foreign References:
| JP2000136299A | 2000-05-16 | |||
| JP2004331847A | 2004-11-25 | |||
| JP2004168927A | 2004-06-17 | |||
| JP2004256642A | 2004-09-16 | |||
| JP2020128616A | 2020-08-27 | |||
| JP2001248016A | 2001-09-14 | |||
| JP2004285144A | 2004-10-14 |
Other References:
COLOR MATERIAL, vol. 67, no. 7, 1994, pages 463 - 473
Attorney, Agent or Firm:
KONISHI Tomimasa (JP)
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