| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a jig material which can have both high dimensional stability and outstanding cutting workability. <P>SOLUTION: A urethane resin-formable composition for cutting includes: a polyol (A); a polyisocyanate (B); a hollow glass balloon (C1) whose glass thickness is 0.3-1.0 μm ; a hollow glass balloon (C2) whose glass thickness is 1.1-1.6 μm; and an inorganic filler (D) whose Mohs hardness is 1-3. A molding for cutting is obtained by carrying out the reaction curing of the urethane resin-formable composition to be molded. The volume average particle diameter of the (C1) is desirably 50-70 μm, and the volume average particle diameter of the (C2) is desirably 30-49 μm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
