Injection molding of ceramic articles using aqueous based thermo

Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – With subsequent uniting of the particles

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264 63, 2643282, C04B 3330, C04B 3332

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active

053666690

ABSTRACT:
Polyvinyl alcohol copolymers are used as binder in an aqueous ceramic particle slurry for injection molding green ceramic bodies. The slurry is dried to form a coated powder which is then heated and injection molded into a desired shape. The molded shape is then fired to remove the binder and produce a dense ceramic part. The dense parts do not show any knit lines from the injection molding step.

REFERENCES:
patent: 4496506 (1985-01-01), Sakato et al.
patent: 4618648 (1986-10-01), Marten
patent: 4675360 (1987-06-01), Marten
patent: 4968460 (1990-11-01), Thompson et al.

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