Preform of a thermoplastic

Details Preform of a thermoplastic Preform of a thermoplastic

1981-05-18

1983-07-05

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

264248, 264267, 264516, 264523, 428480, 4285428, B65D 1116, B29F 110, B32B 904

Patent

active

043918611

ABSTRACT:
A preform of thermoplastic material composed of a number of separate part-preforms fitted into one another in readiness for blow moulding to form a finished container. At least one of the part-preforms is stretched in the axial direction to provide crystallinity by monoaxial orientation. The part-preforms are singly or jointly provided with barrier layers. Different plastic materials can be used for the part-preforms as well as reprocessed plastic for one of the part-preforms. Through suitable selection of the material of the part-preforms as well as of the material of the barrier layers, it is possible to mould containers suitable for a great variety of different fields of application.

REFERENCES:
patent: 4061705 (1977-12-01), Marcus
patent: 4254170 (1981-03-01), Roullet et al.
patent: 4267143 (1981-05-01), Roullet
patent: 4289817 (1981-09-01), Valyi
patent: 4307137 (1981-12-01), Ota et al.
patent: 4307138 (1981-12-01), Powers et al.
patent: 4311250 (1982-01-01), Ravve et al.
Reference Disclosure "Laminar Preform for Blow Moulding" Mar. 1977, No. 155.

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