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:
Jun. 29, 2004
Filed:
Jul. 25, 2002
Applicant:
Inventors:
Hilmar Vidarsson, Höganäs, SE;
Per Knutsson, Ängelholm, SE;
Assignee:
Hëganäs AB, Hëganäs, SE;
Primary Examiner:
Int. Cl.
CPC ...
B22F 1/00 ; B22F 3/00 ;
U.S. Cl.
CPC ...
B22F 1/00 ; B22F 3/00 ;
Abstract
A powder composition for warm compaction comprising an iron-based powder and a lubricant powder consisting essentially of an amide described by the following formula D—C —B—A—B—C —D wherein D is —H, COR, CNHR, wherein R is a straight or branched aliphatic or aromatic group including 2-21 C atoms; C is the group —NH (CH) CO—; B is amino or carbonyl; A is alkylene having 4-16 C atoms optionally including up to 4 O atoms m is an integer 1-10 and n is an integer 5-11.