The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2012
Filed:
Feb. 10, 2005
Applicant:
Armin Kuebelbeck, Bensheim, DE;
Inventor:
Armin Kuebelbeck, Bensheim, DE;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/12 (2006.01); C04B 14/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to processes for the production of monodisperse SiOparticles by hydrolytic polycondensation of tetraalkoxysilanes and/or organotrialkoxysilanes, in which the hydrolytic polycondensation is carried out in a medium comprising water, one or more solubilizers and one or more amines, and in which highly monodisperse, non-porous particles are obtained. The present invention likewise relates to powders obtainable by the processes, and to the use thereof.