| 摘要 |
<p>A copolyacetal which is obtained by copolymerizing (A) 100 parts by weight of trioxane with (B) 0.01 to 10 parts by weight of at least one compound selected among glycidyl ether compounds represented by general formulae (I), (II), and (III) and (C) 0 to 20 parts by weight of a cyclic ether compound copolymerizable with trioxane (other than the compounds (B)). It is a polyacetal resin having high rigidity, excellent creep properties, a high surface hardness, and excellent sliding properties. In formula (I) (R1 represents C¿1-12? alkyl, aryl, or substituted aryl). In formula (II) (R?2¿ represents a C¿2-20? poly(alkylene oxide) glycol residue). In formula (III) (R?4¿ represents C¿1-30? alkyl and R?5¿ represents C¿1-30? alkylene).</p> |
