METHOD FOR PRODUCING MULTILAYER BODY, MULTILAYER BODY AND PACKAGING MATERIAL

WIPO Patent Application WO/2021/100584

A1

The present invention provides: a multilayer body which has excellent gas barrier properties; and a packaging material which uses this multilayer body.　A method for producing a multilayer body which has a first base material, a sealant layer and a bonding layer that is arranged between the first base material and the sealant layer, said method comprising: a step wherein a two-pack type adhesive, which contains a polyol composition (I) containing a polyester polyol (A), a polyisocyanate composition (II) and an ester solvent, is applied onto the sealant layer; a step wherein the sealant layer is carried into a drying device and heated, so that the solvent is evaporated from the two-pack type adhesive; a step wherein the sealant layer and the first base material are bonded to each other; and a step wherein the two-pack type adhesive is cured, thereby forming the bonding layer.

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ARAI MASAMITSU (JP)
TAKEDA HIROYUKI (JP)

PCT/JP2020/042184

May 27, 2021

November 12, 2020

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DAINIPPON INK & CHEMICALS (JP)

B32B27/00; B32B27/36; B32B27/40; B65D65/40; C08G18/42; C09J175/06

JP2019156416A	2019-09-19
JP2016037508A	2016-03-22
JP2014189639A	2014-10-06
JP2015157363A	2015-09-03
JP2012071845A	2012-04-12

OGAWA Shinji (JP)

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