| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sealing material, especially a sealing material for hemming in an automobile body process, having a short curing time and excellent physical properties after curing, especially excellent followability, adhesion, and extensibility. <P>SOLUTION: The sealing material composition for hemming contains (A) 6-40 wt.% of an acrylic polymer based on the total amount of the sealing material composition, (B) 20-120 pts.wt. of epoxy resin based on 100 pts.wt. of the acrylic polymer (A), and (C) 2-20 pts.wt. polyfunctional acid anhydride based on 100 pts.wt. of the acrylic polymer (A), wherein the epoxy resin (B) has a number average molecular weight of 500-1,500 and an epoxy equivalent of 250-750. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
