Copolyester for molding a bottle

Details Copolyester for molding a bottle Copolyester for molding a bottle

1998-08-14

1999-04-27

Acquah, Samuel A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

528280, 528283, 528286, 528298, 528302, 528308, 5283086, 528503, 524706, 524779, 524783, 524785, 428 369, 428 3692, B29D 2200, C08G 6302

Patent

active

058980601

ABSTRACT:
A copolyester for molding a bottle which comprises 95 to 87 mol % of naphthalenedicarboxylic acid and 5 to 13 mol % of terephthalic acid as dicarboxylic acid components and a diol component consisting essentially of ethylene glycol, has an acetaldehyde content of 20 ppm or less and an intrinsic viscosity of 0.40 to 0.85 dl/g, and produces acetaldehyde in an amount of 30 ppm or less when the copolyester is kept molten with stirring at 300.degree. C. for 5 minutes.

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patent: 5601780 (1997-02-01), Occhiello et al.
patent: 5648032 (1997-07-01), Nelson et al.
patent: 5650469 (1997-07-01), Long et al.
patent: 5656221 (1997-08-01), Schumann et al.
patent: 5736621 (1998-04-01), Simon et al.

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