Synthetic resin additive and synthetic resin composition containing particles of porous hydroxyapatite
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Jun 25, 1999
filing date -
Dec 27, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An additive for synthetic resins is provided which comprises particles of a petaloid hydroxyapatite represented by a chemical formula Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2, having the specified particle diameter, degree of dispersion: and specific surface area, and a synthetic resin composition blended with the additive is also provided. By the use of the additive of the present invention, a film satisfying anti-blocking property, transparency and anti-scratch property can be obtained.
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