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. 09, 2010
Filed:
Oct. 12, 2006
Thomas Dittmar, Cologne, DE;
Bernhard Hentschel, Cologne, DE;
Genoveva Bilandzic, Cologne, DE;
Mario Neuenhaus, Elsdorf, DE;
Rene Herbiet, Eupen, BE;
Thomas Dittmar, Cologne, DE;
Bernhard Hentschel, Cologne, DE;
Genoveva Bilandzic, Cologne, DE;
Mario Neuenhaus, Elsdorf, DE;
Rene Herbiet, Eupen, BE;
Albemarle Corporation, Baton Rouge, LA (US);
Abstract
The invention relates to a flame-retardant filler based on aluminium hydroxide, its use in polymers and a method for its production, in which aluminium hydroxide in the form of bayerite or a bayerite/gibbsite mixture is modified under pressure at temperatures of at least 170° C. in the presence of water and crystal growth regulator, the aluminium hydroxide used as starting material having an average particle size dfrom 0.1 to 4 μm.