POLYISOCYANATE COMPOSITION, POLYURETHANE RESIN FORMING COMPOSITION, MEMBRANE SEALING MATERIAL AND MEMBRANE MODULE

WIPO Patent Application WO/2023/190720

A1

The present invention provides a polyisocyanate composition which contains a diphenylmethane diisocyanate (a1), an isocyanate-terminated prepolymer (a2) that is a reaction product of a polyisocyanate (a2-1) and a polyol (a2-2), and a modified isocyanate (a3), wherein: the polyisocyanate (a2-1) contains a diphenylmethane diisocyanate (a2-1-1) and a modified isocyanate (a2-1-2); the modified isocyanate (a2-1-2) is at least one compound that is selected from the group consisting of a carbodiimide-modified diphenylmethane diisocyanate and a uretonimine-modified diphenylmethane diisocyanate; the modified isocyanate (a3) is a modified diphenylmethane diisocyanate; and the content of the modified isocyanate (a2-1-2) in the polyisocyanate (a2-1) is 4.5% by mass to 15% by mass.

WO/2022/136583	A HEMOSTATIC TISSUE ADHESIVE COMPOSITION COMPRISING AN NCO-TERMINATED URETHANE PREPROLYMER
WO/2019/216893	CURABLE COMPOSITIONS AND THEIR USE AS COATINGS AND FOOTWEAR COMPONENTS
WO/2023/210300	POLYURETHANE AQUEOUS DISPERSION, ADHESIVE, SYNTHETIC LEATHER AND PAINT

KAMIYA AYAMI (JP)

PCT/JP2023/012884

October 05, 2023

March 29, 2023

Click for automatic bibliography generation  

TOSOH CORP (JP)

C08G18/72; B01D63/00; B01D63/02; C08G18/10; C08G18/34; C08G18/38; C08G18/76; C08G18/79; C09K3/10

WO2017006650A1

2017-01-12

JPH10195160A	1998-07-28
JP2011063645A	2011-03-31
JP2017088790A	2017-05-25
JPH08151424A	1996-06-11

HASEGAWA Yoshiki et al. (JP)

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