Use of ethylene/vinyl acetate polymer binders as drying pressing

Details Use of ethylene/vinyl acetate polymer binders as drying pressing Use of ethylene/vinyl acetate polymer binders as drying pressing

1993-10-01

1994-11-29

Reddick, Judy M.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

C04B 3564

Patent

active

053687957

ABSTRACT:
Aqueous ceramic slurries suitable for use in the forming of sintered ceramic bodies are formed by combining a) ceramic particles, b) an aqueous polymer emulsion containing an ethylene/vinyl acetate polymer, and c) water. The slurry is dried to form a free flowing powder which is then dry pressed to form a shape. The shape is then fired to remove the polymer and to sinter the ceramic particles thereby forming the sintered ceramic body. These binder systems do not require the use of organic solvents. The binder systems provide improved formability and green strength.

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patent: 5034451 (1991-07-01), Tanaka et al.
patent: 5043118 (1991-08-01), Kim et al.
patent: 5086093 (1992-02-01), Miller
patent: 5155158 (1992-10-01), Kim

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