C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01) B29C 49/00 (2006.01) B29C 49/06 (2006.01) C08G 63/181 (2006.01) C08K 3/08 (2006.01) C08G 63/83 (2006.01) C08G 63/85 (2006.01) C08G 63/86 (2006.01)
Patent
CA 2044683
H 35786 Abstract POLYESTER POLYMER PRODUCTS 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 partially 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.
Jones Kenneth M.
Kerr Graham P.
Tindale Neil
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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