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:
Feb. 21, 2012
Filed:
Mar. 14, 2007
Alfred Reimer, Furth im Wald, DE;
Reiner Sauerwein, Steinberg, DE;
Manfred Sorgalla, Schwandorf, DE;
Ludwig Edenharter, Burglengenfeld, DE;
Alfred Reimer, Furth im Wald, DE;
Reiner Sauerwein, Steinberg, DE;
Manfred Sorgalla, Schwandorf, DE;
Ludwig Edenharter, Burglengenfeld, DE;
Nabaltec AG, Schwandorf, DE;
Abstract
Method for the production of a finely crystalline boehmite and application of said boehmite as flame retardant in plastics. The method involves mixing aluminum monohydrate with a boehmite crystal structure in water to form an aqueous dispersion of said aluminum monohydrate in said water, and then grinding the dispersion while maintaining the dispersion in a pH range of 2 to 4 and forming boehmite seed crystals. The boehmite seed crystals can then optionally be mixed with a hydrate and a basic aqueous solution to form a dispersion which may be heated to convert at least a substantial portion of the aluminum monohydrate to boehmite.