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Title:
COMPOSITION FOR FORMING POLYURETHANE RESIN FOR CASTING
Document Type and Number:
Japanese Patent JPH0625383
Kind Code:
A
Abstract:

PURPOSE: To provide the subject composition composed of a compound containing NCO group, a compound containing t-amino group and a specific compound, having low soluble material content, low viscosity and excellent workability and suitable as a sealing material for membrane module such as blood-treating apparatus and artificial organ.

CONSTITUTION: This composition is composed of (A) a compound having NCO group (preferably a combination of diphenylmethane diisocyanate with an NCO- terminated urethane prepolymer derived from castor oil polyol), (B) a polyol having t-amino group (preferably tetrakis[2-hydroxypropyl]-ethylenediamine) and (C) a block compound of an isocyanate compound blocked with an ester of a castor oil fatty acid and a monool (preferably tolylene diisocyanate completely blocked with a castor oil fatty acid methyl ester). The NCO/OH equivalent ratio of the total component of the composition is preferably 0.8-1.3.


Inventors:
OHIRA KAZUAKI
SAITO MUTSUO
SHIMADA TOSHIRO
Application Number:
JP1992000108656
Publication Date:
February 01, 1994
Filing Date:
March 31, 1992
Export Citation:
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Assignee:
SANYO CHEMICAL IND LTD
International Classes:
B01D63/00; B01D63/02; C08G18/32; C08G18/80; C09K3/10; (IPC1-7): C08G18/80; B01D63/00; C08G18/32; C09K3/10



 
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