Flaky powder of zinc oxide and its composition for external use

Details Flaky powder of zinc oxide and its composition for external use Flaky powder of zinc oxide and its composition for external use

1988-11-14

1992-03-03

Lewis, Michael

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423101, 423102, 424641, 424642, 424 63, 424 69, 514844, C01G 902, A61K 3332, A61K 7021, A61K 7035

Patent

active

050930990

ABSTRACT:
Flaky fine particles of zinc oxide have an average particle diameter of 0.1 to 1 micron, an average particle thickness of 0.01 to 0.2 micron and a mean platy ratio (aspect ratio) of at least 3. They are useful as an ingredient for an external composition containing a medicine or cosmetic.

REFERENCES:
patent: 3453072 (1969-07-01), Vian-Ortuno
patent: 4255418 (1981-03-01), Bailey
patent: 4261965 (1981-04-01), Fukuda et al.
patent: 4512978 (1985-04-01), Inwood
patent: 4544761 (1985-10-01), Taylor et al.
patent: 4603047 (1986-07-01), Watanabe et al.
patent: 4713242 (1987-12-01), Trenzeluk
patent: 4772331 (1988-09-01), Noguchi et al.
patent: 4842848 (1989-06-01), Saita et al.

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