Micronized perlite filler product
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United States of America Patent
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Mar 3, 2009
Grant Date -
Apr 13, 2006
app pub date -
Sep 28, 2004
filing date -
Sep 28, 2004
priority date (Note) -
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Abstract
Micronized perlite filler product, methods of producing the micronized expanded perlite products, and methods of use thereof are provided. The micronized expanded perlite product has, for example, a small median particle size (for example, less than 11 microns), a high blue light brightness (for example, higher than 84) and low oil absorption (for example, less than 70 percent in volume). The micronized expanded perlite product may be used in a variety of applications such as anti-block filler in plastic films and reinforcement filler in polymers.
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