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:
Nov. 25, 2003
Filed:
Mar. 27, 2002
Applicant:
Inventors:
Uwe Budde, Wandlitz, DE;
Andreas Briel, Berlin, DE;
Georg Rossling, Glienicke, DE;
Kai Lovis, Berlin, DE;
Wolfgang Schmidt, Berlin, DE;
Hans-Ulrich Moritz, Bendestorf, DE;
Michael Gottfried, Hamburg, DE;
Jan-Peter Ingwersen, Berlin, DE;
Assignee:
Schering Aktiengesellschaft, Berlin, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01J 1/302 ; B32B 1/502 ;
U.S. Cl.
CPC ...
B01J 1/302 ; B32B 1/502 ;
Abstract
The invention relates to a multi-stage method for producing gas-filled microcapsules. In one stage of the method, the substance that forms the coat is polymerized. The microcapsules are formed in a physically and/or temporally separate stage, by means of a structuring process. The polymerization is carried out with moderate stirring, while the microcapsules are structured in dispersing conditions.