Optical articles comprising isosorbide polyesters and method...

Details Optical articles comprising isosorbide polyesters and method... Optical articles comprising isosorbide polyesters and method...

C - Chemistry, Metallurgy

08

G

C08G 63/42 (2006.01) B32B 3/00 (2006.01) C08G 63/668 (2006.01) G11B 3/70 (2006.01) G11B 5/84 (2006.01) G11B 7/253 (2006.01) G11B 7/26 (2006.01)

Patent

CA 2328836

An optical article made of a transparent polymer which includes terephthaloyl moieties, optionally, other aromatic diacid moieties; ethylene glycol moieties; isosorbide moieties; and, optionally, one or more other diol moieties, wherein the polymer has an inherent viscosity of at least about 0.35 dL/g as measured on a 1% solution (weight/volume) in o- chlorophenol at 25 °C.

L'invention concerne un article optique fabriqué à partir d'un polymère transparent. Ce dernier comprend des fractions de térephthaloyl, éventuellement, d'autres fractions diacides aromatiques; des fractions d'éthylèneglycol; des fractions d'isosorbide; et, éventuellement, une ou plusieurs autres parties diol. Le polymère présente une viscosité inhérente d'au moins environ 0,35 dL/g mesurée sur une solution à 1 % (poids/volume) dans du o-chlorophénole à 25 DEG C.

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