POLYURETHANE RESIN-FORMABLE COMPOSITION FOR MEMBRANE SEAL MATERIAL, AND MEMBRANE SEAL MATERIAL AND MEMBRANE MODULE USING SAID COMPOSITION

WIPO Patent Application WO/2019/022103

A1

The purpose of the present invention is to provide: a polyurethane resin-formable composition for membrane seal materials, which is of low viscosity and helps in forming a membrane seal material that exhibits a reduced rate of dissolution of low-molecular reactants therefrom; and a membrane seal material and a membrane module that use said polyurethane resin-formable composition. This polyurethane resin-formable composition for membrane seal materials comprises a main agent (A) and a curative agent (B), wherein: the main agent (A) includes an isocyanate-terminated prepolymer (A1); the isocyanate-terminated prepolymer (A1) is a reaction product of an isocyanate group-containing compound (a1) and an active hydrogen-containing compound (a2); the main resin (A) contains diphenylmethane diisocyanate; the monomer content in said diphenylmethane diisocyanate is at most 35 mass%; and the curative agent (B) contains a compound (b1) represented by formula (1). In formula (1), R represents an alkyl group having two or more carbon atoms.

YOSHIDA KOUJI (JP)
IKEMOTO MITSUSHIGE (JP)
OOTA FUTOSHI (JP)

PCT/JP2018/027798

January 31, 2019

July 25, 2018

Click for automatic bibliography generation  

TOSOH CORP (JP)

C09K3/10; B01D63/00; B01D63/02; C08G18/10; C08G18/36; C08G18/38; C08G18/78

WO2017006650A1	2017-01-12
WO2011074238A1	2011-06-23

JP2000297134A	2000-10-24
JPH11322881A	1999-11-26
JP2015142908A	2015-08-06
US4598136A	1986-07-01
JPH07213871A	1995-08-15
JP2017143363A	2017-08-17
JP2018138313A	2018-09-06

See also references of EP 3660120A4

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