Additive comprising porous calcium phosphate for synthetic resins, and synthetic resin composition
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United States of America Patent
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Dec 16, 2003
Grant Date -
N/A
app pub date -
Aug 20, 2001
filing date -
Feb 22, 1999
priority date (Note) -
Expired
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Abstract
An additive for synthetic resins is provided which comprises composite particles obtained by depositing a calcium phosphate compound (R) on support particles (M) of a petaloid porous structure. The additive of the present invention provides synthetic resin compositions having excellent transparency, anti-scratch property, anti-blocking property and less discoloration caused by deterioration of resin.
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