POLYURETHANE RESIN-FORMING COMPOSITION AND HYDROINFLATING WATER-SEALING MATERIAL FOR STEEL SHEET PILE

WIPO Patent Application WO/2011/122180

A1

Disclosed is a polyurethane resin-forming composition containing: an aromatic isocyanate-terminated pre-polymer (a1); one or more aliphatic organic polyisocyanate compounds (a2) chosen from a specified group; and an organic polyisocyanate composition for waterproofing (A) with an isocynanate group content and ratio number within a set range and an amine polyol (B) with a nominal average functionality of 3-6, wherein the ratio of isocyanate group to hydroxyl group thereof is within a specified range. Here, the pre-polymer (A1) is a reaction product of an aromatic polyisocyanate (a11) and a polyether polyol (a12), and the polyether polyol (a12) comprises a polyethyl polyol (a12-1) with a nominal average functionality of 2 and oxyethylene group content within a specified range, and a polyethyl polyol (a12-2) with a nominal average functionality of 3 and oxyethylene group content within a specified range.

JP4884824	UV curable hot melt type sealant
WO/2003/000759	AQUEOUS RESIN DISPERSION, PROCESS FOR PRODUCING THE SAME, AND USE
WO/2019/240484	SEALANT COMPOSITION

HIGASHIKUBO ICHIRO (JP)
TANAKA KAZUYUKI (JP)

PCT/JP2011/054028

October 06, 2011

February 23, 2011

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NIPPON POLYURETHANE KOGYO KK (JP)
HIGASHIKUBO ICHIRO (JP)
TANAKA KAZUYUKI (JP)

C09K3/10; C08G18/10; C08G18/48

JP2000038567A	2000-02-08
JPH08169930A	1996-07-02
JPH08151424A	1996-06-11
JPH06157708A	1994-06-07
JPH05209165A	1993-08-20
JPS5794056A	1982-06-11

CENTCREST IP ATTORNEYS (JP)
Patent business corporation cent Crest international patent firm (JP)

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