| 摘要 |
<p>A polyoxymethylene composition improved in respect of a reduction in malfunction caused by formic acid evolved from the composition (for example, contamination due to oozing-out from rubber or corrosion of a metallic magnetic material). The polyoxymethylene composition comprises polyoxymethylene (a) 0.01 to 3 % by weight, based on polyoxymethylene, of a sterically hindered phenolic antioxidant, (b) 0.001 to 0.3 % by weight, based on polyoxymethylene, of polyamide, and (c) 0.001 to 0.5 % by weight, based on polyoxymethylene, of magnesium oxide having a specific surface area of not less than 10 m2/g.</p> |
