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:
Jun. 26, 2012
Filed:
Feb. 22, 2005
Stefan Kammermeier, Groebenzell, DE;
Till Merkel, Neu-Ulm, DE;
Katharina Schmid, Aschaffenburg, DE;
Achim Müller, Grossostheim, DE;
Stefan Kammermeier, Groebenzell, DE;
Till Merkel, Neu-Ulm, DE;
Katharina Schmid, Aschaffenburg, DE;
Achim Müller, Grossostheim, DE;
EyeSense AG, Basel, CH;
Abstract
The invention relates to a process for preparing microspheres comprising an ionically crosslinked polymer, the process comprising: (a) producing liquid aerosol droplets () from a solution () comprising an ionically crosslinkable polyionic polymer into a continuous gas stream by using an ultrasonic nebulizer; (b) transferring the gas stream into a gelling solution () comprising di-, multi- or polyvalent ions, whereby crosslinked polymer microspheres () are formed, (c) separating the microspheres from the gelling solution, and (d) optionally, filtering the microspheres through a screen.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile