Metallic filled pastes
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United States of America Patent
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-
Oct 7, 2003
Grant Date -
Nov 28, 2002
app pub date -
Apr 3, 2002
filing date -
Jul 20, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A paste composition, including a binding agent charged with metallic powder, to be used in a solid freeform fabrication procedure, comprising: a) a solidifiable binding agent comprised of at least one polymerizable resin, with a viscosity of less than 4000 mPa.s, measured at 25.degree. C.; b) at least one initiator, in a concentration greater than about 0.1% by mass with respect to the mass of the resin; and c) a mixture of at least two metallic powders, said mixture having a volumetric concentration greater than 40% with respect to the composition, wherein said mixture of metal powders is either i) a bimodal or trimodal mixture in nature, or ii) is a majority of stainless steel with an amount of NiB or NiP and combinations thereof effective to lower the sintering temperature.
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