Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2005-04-21
2008-08-26
Green, Anthony J (Department: 1793)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C106S437000, C106S445000, C423S326000, C423S610000, C423S611000, C423S612000, C423S613000, C424S059000, C424S401000, C427S216000, C427S220000, C428S405000, C502S242000, C524S443000
Reexamination Certificate
active
07416600
ABSTRACT:
Silicon-titanium mixed oxide powder produced by flame hydrolysis, which consists of aggregates of primary particles, with a BET surface area of 90±15 m2/g, a titanium dioxide proportion of 50±8 wt. % and an anatase/rutile ratio of 60:40 to 70:30.It is produced in that a mixture of silicon halide, titanium halide, hydrogen and primary air is ignited in a burner and the flame is burned into a reaction chamber closed off from the surrounding air, and secondary air and a gas, which increases the temperature in the reaction chamber by combustion and/or which slows down the cooling in the reaction chamber because of low heat transfer, are additionally introduced into the reaction chamber.It can be used in toner compositions.
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Diener Uwe
Klotz Oswin
Moerters Martin
Schumacher Kai
Degussa - AG
Green Anthony J
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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