Abstract: Disclosed herein is a polyoxymethylene resin composition which comprises 100 parts by weight of a polyoxymethylene polymer (A), 0.005-2 parts by weight of an amine-substituted triazine compound (B), 0.01-5 parts by weight of a compound (C) prepared by grafting 0.05-5 parts by weight of anhydrous maleic acid onto an ethylene-propylene copolymer and an ethylene-propylene terpolymer, and 0.001-2 parts by weight of 1,12-dodecanedicarboxylic acid dihydrazide (D). The polyoxymethylene resin composition is highly thermally stable, and shows reduced generation of formaldehyde gas, particularly, during molding and from final molded products.

Abstract: Disclosed is a polyoxymethylene composition having high fuel resistance, which includes a polyoxymethylene polymer, magnesium stearate, and an antioxidant. Also, a shaped article produced from the polyoxymethylene composition is provided, which is suitable for use in fuel feeding and circulation systems of automobiles.

Abstract: Disclosed is a polyacetal resin composition including a polyoxymethylene homopolymer or copolymer, an antioxidant, a thermal stabilizer, a polyethylene vinylacetate copolymer and hydroxyl pentacrythritol fatty acid ester. The polyacetal resin composition is excellent in mechanical properties, chemical resistance, heat resistance, dimensional stability, and electrical properties. Further, the composition is advantageous in terms of superior wear resistance and abruption-preventing effect.

Abstract: Disclosed is a polyacetal resin composition including a polyoxymethylene hornopolymer or copolymer, an antioxidant, a thermal stabilizer, a polyethylene vinylacetate copolymer and hydroxyl pentacrythritol fatty acid ester. The polyacetal resin composition is excellent in mechanical properties, chemical resistance, heat resistance, dimensional stability, and electrical properties. Further, the composition is advantageous in terms of superior wear resistance and abruption-preventing effect.

Abstract: Disclosed is a polyacetal resin composition stable to chlorine and chlorides, which is advantageous in terms of excellent thermal stability and chlorine resistance. The polyacetal resin composition consist of 100 parts by weight of polyoxymethylene or a copolymer thereof; 0.01-1.0 part by weight of an antioxidant; 0.01-1.0 part by weight of thermal stabilizer; 0.01-10.0 parts by weight of metal hydroxide selected from among magnesium hydroxide, calcium hydroxide, barium hydroxide, cadmium hydroxide, aluminum hydroxide and combinations thereof; and 0.01-5.0 parts by weight of metal oxide selected from synthetic aluminum silicate, calcium oxide, magnesium oxide, aluminum oxide and magnesium aluminate. An article prepared from such a polyacetal resin composition is also disclosed.

Abstract: A polyoxymethylene resin composition, having enhanced tensile elongation, thermal stability, processibility and impact resistance, comprises: (i) from 45 to less than 97% % by weight of a polyoxymethylene resin (Component A); (ii) from 1 to less than 20% by weight of a thermoplastic polyester elastomer (Component B); (iii) from 2 to 35% by weight of a thermoplastic polyurethane elastomer (Component C); and (iv) from 0.1 to less than 10% by weight of a maleic anhydride-grafted aliphatic polyolefinic rubbery polymer (Component D), based on the total weight of Components A, B, C and D.

Abstract: A polyoxymethylene resin composition, having enhanced tensile elongation, thermal stability, processibility and impact resistance, comprises: (i) from 45 to less than 97% % by weight of a polyoxymethylene resin (Component A); (ii) from 1 to less than 20% by weight of a thermoplastic polyester elastomer (Component B); (iii) from 2 to 35% by weight of a thermoplastic polyurethane elastomer (Component C); and (iv) from 0.1 to less than 10% by weight of a maleic anhydride-grafted aliphatic polyolefinic rubbery polymer (Component D), based on the total weight of Components A, B, C and D.