Polyolefin composition

摘要

Polyolefin compositions comprising (I) crystalline polyolefin and (II) a mixture of inorganic fillers 5 to 45% by weight based on the total weight of said polyolefin and mixture, said mixture comprising (1) 40 to 95% by weight of a powder of a mixture of predominant calcium metasilicate and 0.2 to 20% by weight of calcium carbonate, said powder being in the long and narrow shape and more than 98% by weight thereof being passable through a 200-mesh Tyler's standard sieve, and (2) 60 to 5% by weight of hydrated magneium silicate powder which is passable through a 325-mesh Tyler's standard sieve.