Method for making a hollow polyethylene terephthalate blow molde

Details Method for making a hollow polyethylene terephthalate blow molde Method for making a hollow polyethylene terephthalate blow molde

1990-04-20

1991-02-12

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264515, 425112, 4251291, 425525, B29C 4514, B29C 4920

Patent

active

049922300

ABSTRACT:
A method and apparatus for making a hollow blow molded article with an integral external projection such as a handle thereon. The method includes blow molding the hollow article and then injection molding the integral projection thereon. The apparatus includes a combination mold having separate and independent blow mold and injection mold cavities which communicate at an interface therebetween. In a preferred embodiment, the blow molded article with integral handle is polyethlene terephthalate (PET).

REFERENCES:
patent: 4659531 (1987-04-01), Ezaki
patent: 4727997 (1988-03-01), Nakamura

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