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:
Oct. 30, 2012
Filed:
Aug. 09, 2005
Applicants:
Karl Koehler, Diekhozen, DE;
Ferdinand Hardinghaus, Bad Honnef, DE;
Inventors:
Karl Koehler, Diekhozen, DE;
Ferdinand Hardinghaus, Bad Honnef, DE;
Assignee:
Solvay Infra Bad Hoenningen GmbH, Hannover, DE;
Primary Examiner:
Int. Cl.
CPC ...
A61K 8/81 (2006.01); C08K 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses dispersions of preferably modified strontium carbonate in organic liquids, for example in alcohols, ketones or particularly methylene chloride. The dispersions are usable for the preparation of polymers which have reduced birefringence or no birefringence and are therefore suitable for optical applications. The powder obtainable after the removal of the organic liquid can surprisingly be converted back to a dispersion with little energy.