Title:
SHRINK FILM
Document Type and Number:
WIPO Patent Application WO/2022/138039
Kind Code:
A1
Abstract:
Provided is a shrink film in which a biomass-derived polystyrene resin is used and which has exceptional shrink finishing properties. This shrink film has thermal shrinkage properties mainly in one direction, the shrink film including a styrene-butadiene copolymer that has constituent units derived from biomass-derived styrene monomers, and being such that the content proportion of a resin that has a Vicat softening temperature of 75-90°C (inclusive) relative to the entire mass of the shrink film is 45 mass% or greater.
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Inventors:
FUSHIDA YUKI (JP)
MATSUOKA YO (JP)
DOBASHI HIDENORI (JP)
BANNO SHINJI (JP)
MATSUOKA YO (JP)
DOBASHI HIDENORI (JP)
BANNO SHINJI (JP)
Application Number:
PCT/JP2021/044198
Publication Date:
June 30, 2022
Filing Date:
December 02, 2021
Export Citation:
Assignee:
FUJI SEAL INT INC (JP)
International Classes:
B32B27/00; B29C61/02; B65D25/36; C08J5/18; C08L25/10; G09F3/04
Domestic Patent References:
WO2020080026A1 | 2020-04-23 |
Foreign References:
US3891721A | 1975-06-24 | |||
JP2016505645A | 2016-02-25 | |||
JP2015042711A | 2015-03-05 | |||
JP2014051617A | 2014-03-20 | |||
JP2016210079A | 2016-12-15 | |||
JP2015009515A | 2015-01-19 | |||
JP2020193274A | 2020-12-03 | |||
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JP2021126834A | 2021-09-02 |
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