AU Patent

AU2018352064A1 — A method for manufacturing coated titanium dioxide particles, coated titanium dioxide particles and products comprising thereof

Assigned to Venator Germany GmbH · Expires 2020-05-21 · 6y expired

What this patent protects

The present disclosure provides a method for manufacturing pigmentary titanium dioxide particles coated with SiO2 coating layer. The method comprises the steps of (i) forming an aqueous dispersion containing rutile titanium dioxide particles having an average particle size of in …

USPTO Abstract

The present disclosure provides a method for manufacturing pigmentary titanium dioxide particles coated with SiO2 coating layer. The method comprises the steps of (i) forming an aqueous dispersion containing rutile titanium dioxide particles having an average particle size of in the range of 7–1000 nm, (ii) introducing to said dispersion of step (i) a silicon containing compound and a base, (iii) adding to the dispersion obtained from step ii acid, (iv) repeating the steps ii and iii at least once. Finally, the pH of the dispersion is lowered to a value within the range from 1.9 to 9.0 before filtering and washing thus obtained product.

Drugs covered by this patent

Patent Metadata

Patent number
AU2018352064A1
Jurisdiction
AU
Classification
—
Expires
2020-05-21
Drug substance claim
No
Drug product claim
No
Assignee
Venator Germany GmbH
Source
FDA Orange Book + USPTO grounding via Google Patents

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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