| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a urethane resin composition which can form a porous body which has outstanding flexibility, a characteristics in which a hole can recover in an original shape and size when released from pressure, and durability of a level which can maintain the characteristic even if being unattended for a fixed period under wet heat environment, and which is suitable for processing by a wet film formation method chiefly. <P>SOLUTION: The urethane resin composition for wet film formation includes: a urethane resin (A) which is obtained by reacting a polyol containing an aliphatic polyester polyol (a1) with a polyisocyanate (a2) containing an aromatic polyisocyanate; a carbodiimide compound (B); and an organic solvent (C), wherein the carbodiimide compound (B) is included in a range of 0.1-5 pts.mass based on 100 pts.mass of the urethane resin (A). In addition, the porous body, the polishing pad, and the methods of manufacturing them are disclosed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
