POLYACETAL RESIN COMPOSITION

PROBLEM TO BE SOLVED: To provide a polyacetal resin composition excellent in heat stability, flowability (low melt viscosity) and mechanical physical property.SOLUTION: There is provided a polyacetal resin composition containing 100 pts.mass of (A) a polyacetal resin, 0.01 to 10 pts.mass of (B) at least one kind of siloxane-based compound represented by the formula (I). (I), where Ris each independently a C1 to 11 alkyl group, Ris each independently a C12 to 36 alkyl group, n, m and p are 0 to 58, m or p are not 0 at same time and N represented by n+m+p+2 is 15 to 75.SELECTED DRAWING: None 【課題】熱安定性、流動性（低溶融粘度）、機械的物性に優れたポリアセタール樹脂組成物を提供する。【解決手段】（Ａ）ポリアセタール樹脂１００質量部と、（Ｂ）式（Ｉ）で示されるシロキサン系化合物の少なくとも１種を０．０１〜１０質量部と、を含有するポリアセタール樹脂組成物。（Ｒ１は各々独立にＣ１〜１１のアルキル基；Ｒ２は各々独立にＣ１２〜３６のアルキル基；ｎ、ｍ、ｐは、０〜５８；ｍ又はｐは同時に０ではなく、ｎ＋ｍ＋ｐ＋２で表されるＮは１５〜７５）【選択図】なし