EP1511802B1 — Powder comprising silica-coated zinc oxide, organic polymer composition containing the powder and shaped article thereof
Assigned to Resonac Holdings Corp · Expires 2010-09-08 · 16y expired
What this patent protects
A powder comprising silica-coated zinc oxide fine particles in which the surface of each particle is coated with silica, wherein large particles of 5 mum or more account for 0.1 mass % or less. A powder comprising surface-hydrophobicized silica-coated zinc oxide fine particles in…
USPTO Abstract
A powder comprising silica-coated zinc oxide fine particles in which the surface of each particle is coated with silica, wherein large particles of 5 mum or more account for 0.1 mass % or less. A powder comprising surface-hydrophobicized silica-coated zinc oxide fine particles in which the silica-coated zinc oxide fine particles whose surfaces have been coated with silica are further treated with a hydrophobicity-imparting agent, wherein large particles of 5 mum or more account for 0.1 mass % or less.
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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