Method for blow molding a reinforced plastic bottle

Details Method for blow molding a reinforced plastic bottle Method for blow molding a reinforced plastic bottle

1977-08-05

1978-10-24

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 89, 264 98, 425523, 425530, B29C 1707, B29D 302

Patent

active

041221427

ABSTRACT:
A method is disclosed for reinforcing bottles with a tubular netting embedded in an exterior surface of the bottle. A tubular netting section is initially compressed in an axial direction to increase its diameter. The compressed netting is positioned over a preformed parison of a thermoplastic material. The compressed netting is then released to re-expand axially and contract diametrically, until the netting contacts the parison. The parison is finally transferred to a blow mold and blown into a finished bottle. During the blowing operation, the netting is embedded into and reinforces the walls of the blown bottle. Depending upon the materials from which the netting and bottle are formed, the netting may also weld to the bottle wall to further increase the strength of the bottle.

REFERENCES:
patent: 2792593 (1957-05-01), Hardgrove, Jr.
patent: 2805787 (1957-09-01), Sherman
patent: 3010867 (1961-11-01), Sannipoli et al.
patent: 3223760 (1965-12-01), Roberts et al.
patent: 3423494 (1969-01-01), Roberts

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