Process and apparatus using liquefied gas for making plastic par

Details Process and apparatus using liquefied gas for making plastic par Process and apparatus using liquefied gas for making plastic par

1994-06-15

1996-12-10

Dawson, Robert A.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By impinging plural liquid masses

425 7, 264 41, B29B 910

Patent

active

055827799

ABSTRACT:
The invention relates to a process for the solvent-free and dry production of particles from plastics. According to the invention, the plastic is heated to form a viscous material, in this form, is conveyed as material stream through an outlet into a comminution device and there, with spraying of a pressurized liquid atomization medium against it, is comminuted into fibrids and/or fine particles.

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patent: 4052183 (1977-10-01), Levecque et al.
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patent: 4642262 (1987-02-01), Piotrowski et al.
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patent: 5260003 (1993-11-01), Nyssen et al.
patent: 5296286 (1994-03-01), Allen et al.
patent: 5322650 (1994-06-01), Endo et al.

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