Micronized polyolefins for preparing pigment concentrates
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United States of America Patent
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app pub date -
Mar 4, 2002
filing date -
Nov 28, 1998
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Abandoned
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Abstract
The present invention relates to the use of micronized polyolefin powders to prepare pigment concentrates for coloring polyolefins. The micronized polyolefins and/or polyolefin waxes are prepared by grinding polyolefins and/or polyolefin waxes to prepare pigment concentrates, wherein the proportion of the particle size fraction smaller than 10 .mu.m is at least 1% by weight, the proportion of the particle size fraction smaller than 100 .mu.m is at least 10% by weight, and the proportion of the particle size fraction smaller than 500 .mu.m is at least 90% by weight.
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