Sheets formed from polyesters including isosorbide

Details Sheets formed from polyesters including isosorbide Sheets formed from polyesters including isosorbide

1998-04-23

2000-02-15

Acquah, Samuel A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

528272, 528298, 528300, 528302, 528308, 5283086, B32B 702, C08G 6366

Patent

active

060250615

ABSTRACT:
A sheet made of a polyester which includes monomer units of terephthaloyl moieties, ethylene glycol moieties and isosorbide moieties is described. The polyester has an inherent viscosity of at least about 0.35 dL/g when measured as a 1% (weight/volume) solution of said polyester in o-chlorophenol at a temperature of 25.degree. C. The present invention also relates to a method of making the polyester sheet described above and a method of thermoforming the sheet into articles.

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