Mixture comprising polyolefin particles and fibrous basic magnesium sulfate aggregated particles
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United States of America Patent
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Jul 11, 2017
Grant Date -
Mar 3, 2016
app pub date -
Mar 18, 2014
filing date -
Mar 28, 2013
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Abstract
A resin composition having high compositional uniformity can be advantageously prepared in industry by depositing a mixture comprising polyolefin particles and fibrous basic magnesium sulfate aggregated particles which satisfies the condition that a value resulting from calculation of formula of DA2×ρA/DB2×ρB is in the range of 0.2 to 5 in a hopper of a melt kneader through a supply port of the hopper and introducing the deposited mixture into the melt kneader so as to melt and knead the mixture therein, in which
- DA is a mean particle size (unit: cm) of the polyolefin particles,ρA is a density (unit: g/cm3) of the polyolefin,DB is a mean particle size (unit: cm) of the fibrous basic magnesium sulfate aggregated particles, andρB is an apparent density (unit: g/cm3) of the aggregated particles.
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