Method of heating polyvinyl chloride using microwaves

Details Method of heating polyvinyl chloride using microwaves Method of heating polyvinyl chloride using microwaves

1983-11-29

1989-08-08

Goldberg, E. A.

Electric heating

Metal heating

Of cylinders

264 25, H05B 664

Patent

active

048555533

ABSTRACT:
A method of heating polyvinyl chloride (PVC) using microwaves which is suitable for application in a process for producing PVC film or sheet. The microwave energy is applied to the PVC after the temperature of the PVC has been raised to the point that its intermolecular bonding force has weakened and molecular vibration occurs readily. As a result, uniform heating is obtained throughout the PVC with high energy utilization efficiency.

REFERENCES:
patent: 3771234 (1973-11-01), Forster et al.
patent: 3884742 (1975-05-01), Roberts
patent: 4439381 (1984-03-01), Gagliani et al.
patent: 4444700 (1984-04-01), Fondren
patent: 4459249 (1984-07-01), Matsuda

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