Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1994-03-30
1996-10-08
Acquah, Samuel A.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
525437, 524222, 524323, 524375, 524413, 428402, 2642101, 264291, D02G 300
Patent
active
055629849
ABSTRACT:
A polyester film contains a polyester having an intrinsic viscosity (IV) in the range from 0.65 to 0.8 and an antioxidant. The polyester has an endothermic high temperature peak at a temperature of (A).degree.C. and an endothermic low temperature peak at a temperature of (B).degree.C., both peaks being measured by differential scanning calorimetry (DSC), and the value of (A-B) is in the range from 25.degree. C. to 50.degree. C. The polyester film is suitable for use an insulation film, exhibiting improved ageing properties.
REFERENCES:
patent: 5124388 (1992-06-01), Pruett et al.
Japanese Abstract Publication No. JP 04316829/A dated Nov. 9, 1992.
Research Disclosure 14434 (Apr. 1976).
WO 92/13021 (Aug. 1992).
Lewis Barry J.
Mortlock Simon V.
Acquah Samuel A.
Imperial Chemical Industries plc
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