ADHESIVE, LAMINATE, AND PACKAGING MATERIAL

WIPO Patent Application WO/2022/172760

A1

Provided is a two-pack curable adhesive which is less apt to cause appearance failures due to bubbles or dissolution of a print layer.　The two-pack curable adhesive comprises: a polyisocyanate composition (A) including a urethane prepolymer (A1) which is a product of reaction among a polyester polyol (a1), a polyether polyol (a2), and a polyisocyanate compound (a3); and a polyol composition (B) including a polyester polyol (B1). The polyester polyol (a1) was synthesized from at least one polyhydric alcohol (a1-2) and the polyester polyol (B1) was synthesized from at least one polyhydric alcohol (b1-2), the alcohols (a1-2) and (b1-2) each comprising 80 mass% or more diethylene glycol. The proportion of the polyester polyol (a1) in the sum of the polyester polyol (a1) and the polyether polyol (a2) was 50-90 mass%.

JPWO2021106583	Reactive adhesives, laminates and packaging
WO/2022/162106	SILANE-TERMINATED POLYMERS
WO/2023/224903	FAST CURING AND HIGH PERFORMANCE LAMINATING ADHESIVES

TOMITA DAIKI (JP)
TAKEDA MIHO (JP)
KUROI TAKESHI (JP)
KARIMATA TOSHIHIRO (JP)

PCT/JP2022/002992

August 18, 2022

January 27, 2022

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DAINIPPON INK & CHEMICALS (JP)

C09J175/06; B32B7/12; B32B27/00; B65D65/40; C09J7/30; C09J11/04; C09J11/06; C09J175/08

WO2020097900A1

2020-05-22

JP2020066639A	2020-04-30
JP2018162420A	2018-10-18
JP2021102307A	2021-07-15

"Handbook of Painting Material", 1970

OGAWA Shinji (JP)

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