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:
Dec. 07, 2010
Filed:
Dec. 01, 2004
Ferdinand Hardinghaus, Bad Honnef, DE;
Christopher David Glende, Goettingen, DE;
Karl Hoehler, Diekholzen, DE;
Won Jai Park, Goettingen, DE;
Rainer Stahl, Arnsberg, DE;
Andreas Poppe, Sendehorst, DE;
Ferdinand Hardinghaus, Bad Honnef, DE;
Christopher David Glende, Goettingen, DE;
Karl Hoehler, Diekholzen, DE;
Won Jai Park, Goettingen, DE;
Rainer Stahl, Arnsberg, DE;
Andreas Poppe, Sendehorst, DE;
Solvay Infra Bad Hoenningen GmbH, Hannover, DE;
Abstract
The invention discloses deagglomerated barium sulphate which has an average primary particle size of less than 0.5 μm and is coated with a dispersant. The dispersant has preferably reactive groups which are able to interact with the surface of the barium sulphate; particularly preferred dispersants are those which are able to endow the barium sulphate with a hydrophilic surface and have reactive groups for coupling to or into polymers. Also disclosed is a plastics premix comprising the deagglomerated, coated barium sulphate.