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Polyethylene-2,6-naphthalene dicarboxylate resin and preform and bottle molded thereof

  • US 5,837,800 A
  • Filed: 01/30/1998
  • Issued: 11/17/1998
  • Est. Priority Date: 02/03/1997
  • Status: Expired due to Term
First Claim
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1. A polyethylene-2,6-naphthalene dicarboxylate resin for molding a bottle, which comprises 2,6-naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component and contains a germanium compound as a polycondensation catalyst, and has an intrinsic viscosity of 0.55 to 0.75 dl/g, a terminal carboxyl group content of 32 eq/ton or less, an acetaldehyde content of 8 ppm or less and a diethylene glycol component content of 0.8 to 3.0 wt %.

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