Antiblock agent for polyolefin films

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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Details

524444, 524445, 524447, C08J 510, C08K 334, C08L 2300

Patent

active

059088907

ABSTRACT:
The invention relates to the production and use of an agent for use in polymers as an antiblock agent. Pumice with very low amounts of crystalline silica is processed from pumice stone to produce a fine ground pumice with a narrow particle size range. When incorporated into a polyolefin film, the fine ground pumice acts as an antiblock agent while not significantly contributing to haze.

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