Patent · US Expired

Surface-modified pyrogenically produced titanium dioxide

US5372905A · kind A · utility

13Cited by

1References

1Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Hans Deusser · Karlstein, DE
Dieter Kerner · Midland Park, US
Jurgen Meyer · Aschaffenburg, DE
Gunther Michael · Karlstein, DE
Andreas Stubbe · Rodenbach, DE

Key dates

Filing date	Oct 26, 1993
Grant date	Dec 13, 1994
Priority date	—
Expiry date	Oct 26, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31663
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Surface-modified, pyrogenically produced titanium dioxide which is has the following physico-chemical properties: ______________________________________ Surface (m.sup.2 /g) 5 to 120 Stamping density (g/l) 50 to 250 Drying loss (%) <5 Annealing loss (%) 3.5 to 15 Carbon content (%) 0.5 to 12 pH 4 to 10. ______________________________________

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.