EP0581651A2 — Materials in the form of colored spherical fine particles, processes for producing the same and cosmetic compositions containing the particulate material
Assigned to SUZUKI YUSHI INDUSTRIES Co Ltd · Expires 1994-02-02 · 32y expired
What this patent protects
A colored particulate material in the form of almost perfectly spherical fine particles comprising an organic and/or inorganic pigment coated with a hydrated metal compound over the surface thereof, the coated pigment being enclosed with an inorganic porous wall substance, proces…
USPTO Abstract
A colored particulate material in the form of almost perfectly spherical fine particles comprising an organic and/or inorganic pigment coated with a hydrated metal compound over the surface thereof, the coated pigment being enclosed with an inorganic porous wall substance, process for producing the same, and a cosmetic composition comprising the same.
Drugs covered by this patent
- Benzamycin (BENZOYL PEROXIDE) · Mayne Pharma
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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