摘要 |
PURPOSE:To obtain a molded form having no shrinkage, no warpage and excel lent dimensional stability by using polyacetal resin molding material containing predetermined quantities of additive and polyplefin by mixing. CONSTITUTION:An additive of 0.01-5wt.% is mixed in a polyacetal resin molding material in order to improve thermal stability, thermal aging resistance and weather resistance, and polyolefin of 0.01-5wt.% is further mixed. An injection blow molded form is obtained by using the molding material thereby to obtain a molded form of the polyacetal resin having low shrinkage, low warpage and excellent dimensional stability. |