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:
Sep. 25, 1979
Filed:
Sep. 16, 1977
Applicant:
Inventors:
Klaus Unger, Darmstadt, DE;
Horst Kramer, Darmstadt, DE;
Herbert Rupprecht, Regensburg, DE;
Wolfgang Kircher, Munich, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; A01N / ; A61K / ;
U.S. Cl.
CPC ...
252316 ; 8 79 ; 71 6 / ; 252522 ; 424 19 ; 424 22 ; 424 32 ; 424247 ; 424260 ; 424330 ;
Abstract
A process for the incorporation of active materials into silicon dioxide-containing carrier materials, comprises encapsulating the active material with liquid polyalkoxysiloxane, polyorganoalkoxysiloxane or a mixture thereof and subsequently effecting hydrolytic polycondensation of the siloxane. The resultant enveloped active material has readily controllable release properties.