As a chip resistance revised medicine the hydrocarbon rubber and the chip resistance hard PVC composition which uses the chlorination polyethylene

摘要

This invention regards especially, the revised polyvinyl chloride composition which is superior in shock resistant strength. The olefin polymer which is chlorinated to random as for details, as for the chip resistance composition, a) the vinyl chloride polymer, b) at least being one ethylene/ orehuin copolymer, it possesses the density of 0.91g/cc from 0.858g/cc, I₂ values 50, the ethylene/ orehuin copolymer which from I₁₀ values 0.1 I₂ values 30, possesses the melt index up to I₂ values 20 desirably more desirably from I₁₀ values 0.1, and c) possesses the chlorine content of one, 20 - 40 percentages by weight at least from I₁₀ values, 0.1 and it possesses the melt index up to I₂ values 10 from I₁₀ values 0.1It includes. Optional it is possible to make the inorganic bulking agent of 50 sections to these chip resistance polyvinyl chloride compositions contain, from 5 sections according to need, vis-a-vis the polyvinyl chloride polymer 100 section.