Cosmetic composition containing spindle shaped fine particles of titanium dioxide
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United States of America Patent
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Sep 26, 2000
Grant Date -
N/A
app pub date -
Jul 14, 1997
filing date -
Nov 22, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention relates to a cosmetic composition having a UV blocking action in a wide region from UVB to UVA and capable of preventing erythema and melanism due to burning by the sun. The conventional fine particles of titanium dioxide are insufficient in the effect for blocking ultraviolet ray and, furthermore, the feeling to the skin becomes poorer, and the finish becomes powdery. This invention resides in the formulation, into a cosmetic composition, of spindle shaped fine particles of titanium dioxide having an average short diameter of 0.03 to 0.06 .mu.m, an average long diameter of 0.08 to 0.12 .mu.m, and an aspect ratio (long diameter/short diameter) of 2 to 4 or the spindle shaped fine particles and a metal oxide having an average particle size of 0.2 .mu.m or more.
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