Refillable bottle of polyethylene terephthalate copolymer and it

Details Refillable bottle of polyethylene terephthalate copolymer and it Refillable bottle of polyethylene terephthalate copolymer and it

1994-02-10

1995-04-25

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524434, 528283, 528285, 528308, 5283081, 5283082, 215 1C, C08J 510, C08K 308, C08L 3108

Patent

active

054099838

ABSTRACT:
Refillable polyethylene terephthalate (PET) bottles are made by injection stretch blow moulding and comprise a threaded neck of transparent amorphous substantially non-oriented PET; a substantially cylindrical body of transparent biaxially oriented amorphous PET from 0.4 to 0.9 mm thick and an area expansion ratio of at least 7; and a base of transparent amorphous substantially non-oriented or partly oriented PET in which the PET is a polyethylene terephthalate polymer randomly modified by replacing from 1 to 6 mole % of the terephthalate units with units of a chain orientation disrupting aromatic dicarboxylic acid, such as iso-phthalic acid, having an Intrinsic Viscosity of at least 0.75. The polymer particularly includes fine metal particles especially of antimony to reduce the reheat, and optionally includes a level of diethylene glycol residues greater than normally present in PET to improve the blowing performance of the polymer.

REFERENCES:
patent: 4574148 (1986-03-01), Wicker, Jr. et al.
patent: 4604257 (1986-08-01), Smith et al.
patent: 4609721 (1986-09-01), Kirshenbaum et al.
patent: 4692506 (1987-09-01), Yatsu et al.

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