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Patent Searching and Data


Title:
RESIN COMPOSITION, AND FILM FOR COVER MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/196157
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a resin composition and a film for a cover material film, which have excellent sealing properties and adhesiveness to a plastic container, especially a container made from a polyethylene terephthalate, a polylactic acid, a polystyrene, or a polypropylene, and which can be suitably used as a sealant layer of a cover material for a container. This resin composition includes: 60-95 parts by weight of an ethylene-vinyl acetate copolymer (A) having a vinyl acetate content (VA) of 3-13 wt%, a ratio Qw of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn) of 1.5-4.5; and 5-40 parts by weight of a tackifier resin (B) (where, the sum of (A) and (B) is 100 parts by weight).

Inventors:
HEMMI TAKASHI (JP)
MORISHITA ISAO (JP)
KOUDA SHINGO (JP)
Application Number:
PCT/JP2020/011976
Publication Date:
October 01, 2020
Filing Date:
March 18, 2020
Export Citation:
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Assignee:
TOSOH CORP (JP)
International Classes:
C08L31/04; C09J7/30; C09J123/08; C09K3/10
Foreign References:
JP2018076398A2018-05-17
JPH08253631A1996-10-01
JPH11181176A1999-07-06
JPH11206869A1999-08-03
JP2005035567A2005-02-10
JP2016188337A2016-11-04
JPH11269319A1999-10-05
JP4438108B22010-03-24
JP2019056363A2019-04-11
Other References:
See also references of EP 3950830A4
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