COMPOSITION FOR PRODUCING SINTERED MOLDING INCLUDING EXTRACTION DEGREASING STATE AND PRODUCTION OF SINTERED MOLDING BY USING THE SAME

Japanese Patent JP3822293

B2

PROBLEM TO BE SOLVED: To provide a compsn. for production of a sintered molding with which a degreasing stage of a green molding is rapidly and efficiently executable and a homogeneous sintered molding having high dimensional accuracy is obtainable without the occurrence of craze, blister, deformation, etc., in the molding in a heating and degreasing stage and a process for producing the sintered molding by using the same.
SOLUTION: This compsn. for production of the sintered molding including the extraction degreasing by water or a hydrophilic solvent contains a polyacetal resin (A) and a water-soluble or hydrophilic solvent-soluble org. compd. having a m.p. or softening point of ≥30°C, for example, ethylene glycol, methyl cellulose, etc., and further, a resin which may be arbitrarily heated and degreased (C). This process for producing the sintered molding consists in molding the compsn. described above, bringing the resulted green molding and the water or the hydrophilic solvent into contact with each other, extracting and degreasing the water-soluble or hydrophilic solvent- soluble org. compd. (B) from the green molding, then removing the remaining components exclusive of the sinterable powder by heating and further, sintering the sinterable powder.

Akira Fusamoto
Yoshikawa Samukawa
Takamori Seiji

JP30707696A

September 13, 2006

November 01, 1996

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Polyplastics Co., Ltd.
Taisheng Industry Co., Ltd.

B22F3/02; C04B35/632; B22F3/10; C04B35/638; C08L23/26; C08L59/02; C08L59/04; (IPC1-7): B22F3/02; B22F3/10; C04B35/632; C04B35/638; C08L23/26; C08L59/02; C08L59/04

JP2101101A
JP2145704A
JP8283801A

Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa

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