US Patent 7993429 Lubricant for powder metallurgical compositions

Patent 7993429 was granted and assigned to Höganäs AB on August, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Höganäs AB

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7993429

Date of Patent

August 9, 2011

Patent Application Number

12085554

Date Filed

December 6, 2006

Patent Primary Examiner

Roy King

Patent abstract

An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided.