A polyoxymethylene resin composition comprising (A) 100 parts by weight of a polyoxymethylene resin, (B) 0.1-2.0 parts by weight of a sterically hindered phenol compound, (C) 0.01-5.0 parts by weight of an olefin resin, (D) 0.1-2.0 parts by weight of a specified polyalkylene glycol, (E) 0.01-5.0 parts by weight of a specified amide compound, (F) 0.01-2.0 parts by weight of melamine, and (G) 0-5.0 parts by weight of a polymer containing nitrogen atoms reactive with formaldehyde. The composition gives extruded moldings reduced in the content of whitened portions or cavities undesirable from the viewpoint of the material property or appearance.
一种
聚甲醛树脂组合物,包括(A)100 份(重量)
聚甲醛树脂,(B)0.1-2.0 份(重量)立体受阻
酚化合物,(C)0.01-5.0 份(重量)烯烃
树脂,(D)0.1-2.(E) 0.01-5.0 重量份的特定酰胺化合物,(F) 0.01-2.0 重量份的
三聚氰胺,以及 (G) 0-5.0 重量份的含有与
甲醛反应的氮原子的聚合物。从材料性能或外观的角度来看,这种组合物可以减少挤压成型的发白部分或空洞。