Method for the preparation of hollow plastic articles

Details Method for the preparation of hollow plastic articles Method for the preparation of hollow plastic articles

1977-04-11

1979-03-20

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264516, 264520, 264530, B29C 1707

Patent

active

041453921

ABSTRACT:
Method and apparatus for the preparation of hollow plastic articles wherein an improved injection blow molding process is obtained and improved temperature control of the parison is obtained by the use of a plurality of molds and cores. At least one temperature controlled mold and core is used to adjust the temperature of the parison. The temperature adjusted parison is then stretched and/or blown in at least one second mold by a second core, cooled therein and transferred by at least one third ejector core to additional finishing molds for further cooling or to removal means.

REFERENCES:
patent: 3776991 (1973-12-01), Marcus
patent: 3819314 (1974-06-01), Marcus
patent: 3944643 (1976-03-01), Sato et al.
patent: 4061705 (1977-12-01), Marcus

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