| 摘要 |
PURPOSE:To provide the titled compsn. which does not suffer discoloration nor deterioration during molding and is freed from deposition of fine powdered materials on the inner surface of a mold, by incorporating melem in a polyacetal resin. CONSTITUTION:Melem (which is obtd. by firing area, has the structure of the formula, does not have any definite melting point, is hardly decomposed by heat, and is a weakly basic compd.) is used as a heat stabilizer. 0.001-2pts.wt. melem is blended with 100pts.wt. polyacetal resin. Pref. 0.01-10pts.wt. polyamide resin is used together. |
