Continuous process for producing, reheating, and blow molding pa

Details Continuous process for producing, reheating, and blow molding pa Continuous process for producing, reheating, and blow molding pa

1975-02-11

1976-04-13

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

219354, 219388, 264 40, 264 99, 264327, 425DIG208, 425DIG231, 432 11, B29C 1707

Patent

active

039504590

ABSTRACT:
The process comprises heating a hollow thermoplastic parison to orientation temperature ranges by selectively applying radiant heat to at least three portions of the parison. The thus irradiated parison is passed to a molding zone, and therein subjected to a pressure differential sufficient to expand the parison into conformity with a molding zone cavity.

REFERENCES:
patent: 3294883 (1966-12-01), Polka
patent: 3368241 (1968-02-01), Williams
patent: 3591767 (1971-07-01), Mudie
patent: 3715109 (1973-02-01), Gilbert
patent: 3775524 (1973-11-01), Seefluth
R. E. Schanzle & C. W. Hurst, "Rapid, Easily Programmed Parison Control," MODERN PLASTICS, Jan. 1969, pp. 137 and 138.

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