Ferrous powder compositions containing a polymeric binder-lubric

Details Ferrous powder compositions containing a polymeric binder-lubric Ferrous powder compositions containing a polymeric binder-lubric

1998-05-18

1999-11-09

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75255, C22C 100

Patent

active

059806036

ABSTRACT:
Complexable polymeric binder-lubricant blends are disclosed for production by powder metallurgy techniques of ferrous compositions with remarkably high green strength upon compaction, or soft magnetic ferrous powder/resin composites with improved processability and magnetic properties. An exemplary composition consists of a ferrous powder, a thermoset phenolic resin and poly(ethylene oxide), both polymers exhibiting, when intimately mixed, strong intermolecular acid-base interactions giving rise to an interpolymer complex which imparts a high strength to the resulting ferrous powder compact.

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Katime et al, Hydrogen-Bonded Blends, The Polymeric Materials Encyclopedia 1996, CRC Press, Inc.
Acid-Base Interactions, Encyclopedia of Polymer Scienee & Engineering, John Wiley & Sons, 1985 Suppl. Volume.

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