Rapid setting compositions and method of making and using same

Details Rapid setting compositions and method of making and using same Rapid setting compositions and method of making and using same

1994-11-25

1996-10-22

Jordan, Charles T.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making porous product

419 5, 419 41, 419 38, 75246, 264 62, 264 63, 264441, 501 89, B22F 310

Patent

active

055686524

ABSTRACT:
A method of making a homogeneous formable mixture involves simultaneously mixing organic binder which can be cellulose ethers, cellulose ether derivatives, and combinations of these, powder material capable of being formed into a body when combined with the organic binder, water-insoluble wax, and vehicle of which at least about 90 wt % is water, at a temperature which is at least as high the temperature at which the wax begins to deform under shear. A method of making a shaped body involves shaping the above-described mixture into a green body, followed by drying and heating the green body at a temperature and for a time sufficient to form the product body. Preferably the mixture is extruded at a temperature between room temperature and the melting point of the wax, into a honeycomb. The honeycomb has no voids and a smooth skin. A formable mixture made up of organic binder, powder, and wax as described above, wherein the wax which makes up at least 3 wt. % as a superaddition based on the inorganic solid components in the mixture.

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