Anti-friction and wear-resistant polyacetal molding compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524445, 524447, 524449, 524451, 524493, 524504, 524512, 524542, C08K 326

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051735326

ABSTRACT:
Polyacetal resin molding compositions and sliding members formed thereof exhibit anti-friction and abrasion-resistance properties. The polyacetal resin molding compositions include (A) 100 parts by weight of a polyacetal base resin, (B) between 0.5 to 40 parts by weight of a branched or cross-linked graft copolymer which is a graft-reaction product of (a) an olefin polymer, and (b) a vinyl or ether polymer, (C) between 0.1 to 20 parts by weight of a lubricant, and (D) between 0.5 to 30 parts by weight of an inorganic powder having a mean particle diameter of 50 .mu.m or less and a content of particles having a particle diameter of 100 .mu.m or less of at least 95%.

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