Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-01-25
2005-01-25
Sanders, Kriellion A. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S284000, C524S285000, C524S290000, C524S394000, C524S430000, C524S439000, C524S442000
Reexamination Certificate
active
06846862
ABSTRACT:
The present invention relates to a binder composition comprising an aliphatic polyester polymer: an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.
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Hammond Dennis Lee
Philipp Warren Henry
Schofalvi Karl-Heinz
Apex Advanced Technologies, LLC
Renner , Otto, Boisselle & Sklar, LLP
Sanders Kriellion A.
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