Blow-molded multi-ply vessel

Details Blow-molded multi-ply vessel Blow-molded multi-ply vessel

1982-01-21

1985-08-20

Price, William

Bottles and jars

Ejecting

Siphon type

428 35, B65D 2300, B32B 2700

Patent

active

045359016

ABSTRACT:
A blow-molded multi-ply vessel having excellent physical properties and good appearance which comprises two or more kinds of thermoplastic resins, at least one of which is a thermoplastic polyester resin, said vessel having a multi-ply structure of three or more layers at least at the thin wall part of the body thereof and a single layer structure at least at the open end of the mouth part thereof, and at least the thin wall part of the body being biaxially orientated. The vessel is produced by sequently and alternatively injecting two or more kinds of molten thermoplastic resins into one mold with shifting injection timing from a molding machine having plural injection cylinders with one mold closing operation to form a multi-ply parison and then blow-molding the parison at an orientating temperature.

REFERENCES:
patent: 4398642 (1983-08-01), Okudaira et al.

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