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Title:
RESIN COMPOSITION AND METHOD FOR RECYCLING POLY(VINYL ACETAL) RESIN
Document Type and Number:
WIPO Patent Application WO/2021/181999
Kind Code:
A1
Abstract:
In the present invention, obtained is a resin composition in which bleeding of a plasticizer or the like from the composition is controlled even in cases where a raw material containing a large amount of a plasticizer is contained therein, such as an intermediate sheet, and which enables use of a raw material resin in recycling. This resin composition is characterized by: containing a polyolefin-based resin and a poly(vinyl acetal) resin (excluding a poly(vinyl formal) resin) that contains a plasticizer; and further containing at least one type of flexible resin selected from the group consisting of a synthetic rubber, an elastomer and a copolymer olefin resin. When the poly(vinyl acetal) resin containing a plasticizer and the polyolefin-based resin are kneaded, at least one type of flexible resin selected from the group consisting of a synthetic rubber, an elastomer and a copolymer olefin resin is added as a bleeding control agent.

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Inventors:
KOKURYO KAZUTO (JP)
MASUDA YUKITSUGU (JP)
HIRAO KOICHI (JP)
KANZAWA TAKESHI (JP)
WAKIZAKA HIROYUKI (JP)
KAMITANAKA TAKASHI (JP)
Application Number:
PCT/JP2021/005046
Publication Date:
September 16, 2021
Filing Date:
February 10, 2021
Export Citation:
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Assignee:
GLASS TECHNO SYNERGY CO LTD (JP)
MASUDA SHOJI CO LTD (JP)
SHIGA PREFECTURE (JP)
International Classes:
C08K5/10; C08L21/00; C08L23/02; C08L23/06; C08L23/12; C08L29/14
Domestic Patent References:
WO2012026501A12012-03-01
WO2017200052A12017-11-23
WO2019098187A12019-05-23
WO2019065920A12019-04-04
WO2017200053A12017-11-23
Foreign References:
CN109880196A2019-06-14
JP2013141794A2013-07-22
Attorney, Agent or Firm:
SHIRAI Hiroki et al. (JP)
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