POLYURETHANE RESIN-FORMING COMPOSITION FOR CASTING AND SEALING MATERIAL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polyurethane resin-forming composition for casting which cures rapidly, has a low viscosity, shows an excellent castability and is free of substances eluting into blood, and a sealing material using the composition. SOLUTION: This polyurethane resin-forming composition for casting comprises a polyol component (A) containing a polyol (a) wherein an alkylene oxide is added to an alkyl amine of the formula (wherein R1 is an alkyl group having a carbon number of 2 or larger; R2 and R3 are each an alkylene group which is identical to or different from the others; and (m) and (n) are each an integer satisfying m+n = from 2 to 200) and a polyisocyanate component (B). A sealing material is prepared using this.