Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Reexamination Certificate
2011-04-19
2011-04-19
King, Roy (Department: 1733)
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
Reexamination Certificate
active
07927399
ABSTRACT:
A composition for forming a green body is provided. The composition for forming the green body contains powder constituted of a metallic material and a binder containing a first resin which is decomposable by ozone and a second resin which is also decomposable by ozone but decomposed later than the first resin. The green body formed of the composition is used in producing a brown body, wherein the brown body is produced by first exposing the green body to a high ozone content atmosphere to decompose the first resin and remove the decomposed first resin and then decompose the second resin and remove the decomposed second resin, and then at least once exposing the thus obtained green body to a low ozone content atmosphere whose ozone concentration is lower than an ozone concentration of the high ozone content atmosphere. By using the composition mentioned above, it is possible to produce the green body and the brown body from which a metal sintered body having a reduced metal oxide amount and improved properties (dimensional accuracy) can be produced safely, easily and cost-effectively. Such a brown body and a metal sintered body are also provided.
REFERENCES:
patent: 5032354 (1991-07-01), Nakanishi et al.
patent: 5080846 (1992-01-01), Kim et al.
patent: 5362791 (1994-11-01), Ebenhoech et al.
patent: 6051184 (2000-04-01), Kankawa
patent: 6846862 (2005-01-01), Schofalvi et al.
patent: 6939509 (2005-09-01), Kochanek
patent: 2006/0099103 (2006-05-01), Wohlfromm et al.
patent: 05-043304 (1993-02-01), None
patent: 06-263548 (1994-09-01), None
patent: 3190371 (2001-05-01), None
patent: 2006-265659 (2006-10-01), None
patent: 2006-265660 (2006-10-01), None
patent: 2006-265661 (2006-10-01), None
patent: 2006-283159 (2006-10-01), None
Hayashi Junichi
Sakata Masaaki
Harness & Dickey & Pierce P.L.C.
King Roy
Mai Ngoclan T
Seiko Epson Corporation
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