Preparation of thermoplastics containing ceramic powders as fill

Details Preparation of thermoplastics containing ceramic powders as fill Preparation of thermoplastics containing ceramic powders as fill

1990-09-11

1991-12-17

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

264211, 26421123, B29C 4700, B29C 4776

Patent

active

050733206

ABSTRACT:
Thermoplastic materials containing ceramic powders as fillers are prepared by introducing the thermoplastics into a mixing zone comprising a plurality of zones. The thermoplastics are melted in a first zone. In the subsequent second zone, the molten plastic is mixed with a suspension of a ceramic powder in an organic solvent, and the solvent is removed by distillation under reduced pressure in the third zone. In the fourth zone, the melt containing the ceramic powder is compressed and extruded. The process is suitable for the preparation of thermoplastic materials having a degree of filling of from 40 to 80% by volume of ceramic powders.

REFERENCES:
patent: 4965039 (1990-10-01), Schuetz

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