CPC C08L 71/02 (2013.01) [B60K 15/01 (2013.01); B60K 15/03177 (2013.01); B60K 2015/03493 (2013.01); B60R 13/04 (2013.01); B60Y 2410/122 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2205/24 (2013.01)] | 25 Claims |
1. A polymer composition comprising:
a polyoxymethylene polymer present in the polymer composition in an amount of at least 80% by weight;
an acid neutralizing agent, the acid neutralizing agent being present in the polymer composition in an amount from greater than 5% to 10% by weight, wherein the acid neutralizing agent comprises magnesium oxide or a mixture of magnesium oxide and zinc oxide, the magnesium oxide having a BET surface area of greater than 25 m2/g;
a plasticizer, wherein the plasticizer comprises a polyalkylene glycol, the polyalkylene glycol being present in the polymer composition in an amount from about 2% to 12% by weight;
a sterically hindered phenol antioxidant; and
a Charpy notched impact strength at 23° C. of greater than 5 kJ/m2, a tensile stress of greater than 54 MPa, and a tensile modulus of greater than 2,500 MPa.
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