Powder injection molding binder, powder injection molding compos

Details Powder injection molding binder, powder injection molding compos Powder injection molding binder, powder injection molding compos

1995-03-20

1998-04-28

Yoon, Tae

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524401, 524439, 524559, 524560, 524904, 523139, 525934, C08K 308, C08K 310, C08L 3100

Patent

active

057445320

ABSTRACT:
An injection molding binder permitting formation of a molded article incapable of sustaining such defects as a crack or an expansion at the degreasing step and allowing the degreasing treatment to be completed quickly, an injection molding composition, and a method for the production of a sintered member are disclosed. The powder injection molding binder contains a polymer (I) which is obtained by polymerizing a monomer component composed of 50 to 100% by weight of a long side chain-containing monomer and 0 to 50% by weight of other polymerizable monomer. The powder injection molding composition comprises the binder, a binder auxiliary, and a powdery material capable of sintering. The method for the production of a sintered member comprises the steps of injection molding the composition, subjecting the molded mass to a degreasing treatment, and sintering the degreased molded mass.

REFERENCES:
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patent: 4374939 (1983-02-01), Fisk, Jr. et al.
patent: 4506041 (1985-03-01), Tanigawa et al.
patent: 5057360 (1991-10-01), Osaka et al.
patent: 5147744 (1992-09-01), Sacripante et al.
CRC Handbook of Chemistry & Physics, 62nd Edition, pp. B203-B207, 1981-1982 .

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