Process and apparatus for obtaining plastic molded objects

Details Process and apparatus for obtaining plastic molded objects Process and apparatus for obtaining plastic molded objects

1987-05-12

1989-01-24

Hoag, Willard

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264337, 264DIG60, 264 41, 264 54, 264102, 264334, 4254051, 4251748E, 425 4R, 425817R, 425438, B29C 4506, B29C 4520, B29C 3942, B29C 3938

Patent

active

048000493

ABSTRACT:
A process and an apparatus obtain plastic molded objects according to a technique which consists of introducing the plastic into a silicone elastomer mold, then inserting this mold into a high frequency device comprising a turntable "carrousel", a series of high frequency heating presses and a cooling device.
The process is characterized by the introduction of plastic into one end of the mold in the form of liquid plastisol under low pressure, i.e., less than 1 Magapascal. The apparatus employs a carrousel, a mold having two male inserts and resting on the carrousel, vacuum-creating means and plastisol injection means.

REFERENCES:
patent: 3315016 (1967-04-01), Wersosky et al.
patent: 3865532 (1975-02-01), Sakuma
patent: 4441876 (1984-04-01), Marc

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