Compositions – Preservative agents – Anti-corrosion
Patent
1994-01-27
1996-04-02
Lovering, Richard D.
Compositions
Preservative agents
Anti-corrosion
25231501, 2523153, 2523154, 501 12, 106162, 106209, 75252, B01J 1300, C03C 102
Patent
active
055037712
ABSTRACT:
A method for producing a highly loaded, aqueous suspension having a pourable viscosity and containing from 20 to 50 volume percent colloidal ceramic or metal particles. A biologically produced polymer dispersant having a high density of carboxyl functional groups and an average molecular weight of at least 1,000 is solubilized in water in a quantity of less than 1.0 percent dry weight basis of particles. The ceramic or metal particles are then introduced to the solution, and agitated to form a substantially nonagglomerated suspension. The polymer dispersant may be produced by a bacterium grown in situ with the particles. A biologically produced polymer gelling agent that is miscible with the polymer dispersant may be admixed into the suspension, which is then maintained in a nongelled state while being supplied to a mold. The suspension is then exposed to a gel-triggering condition to form a gelled, sinterable article.
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Aksay Ilhan A.
Graff Gordon L.
Pellerin Nancy B.
Ren Tao
Staley James T.
Lovering Richard D.
Metzmaier Daniel S.
Washington Technology Center
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