Patent 7238220 was granted and assigned to Höganäs AB on July, 2007 by the United States Patent and Trademark Office.
The invention concerns a powder composition including an iron or iron based powder and a lubricating amount of an alkylalkoxy or polyetheralkoxy silane, wherein the alkyl or polyether group has between 8 and 30 carbon atoms and the alkoxi group includes 1-3 carbon atoms.