Copolyester resin and articles using the same

Details Copolyester resin and articles using the same Copolyester resin and articles using the same

2005-08-02

2005-08-02

Boykin, Terressa (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

C264S176100, C264S219000, C428S034100, C428S035700, C528S271000, C528S300000, C528S307000

Reexamination Certificate

active

06924349

ABSTRACT:
Disclosed is a copolyester resin composed mainly of terephthalic acid, ethyleneglycol, 1,4-cyclohexanedimethanol, polyethyleneglycol bisphenol-A and a multifunctional monomer. According to the current invention, the multifunctional monomer and polyethyleneglycol bisphenol-A are additionally copolymerized along with 1,4-cyclohexanedimethanol, whereby the resultant copolyester resin can have low haze and high melt viscosity and melt strength, with superior moldability due to low melt pressure. In addition, extrusion blow molded articles and profile extruded articles, such as bottles and tubes, are provided by use of the copolyester resin having superior properties.

REFERENCES:
patent: 5686553 (1997-11-01), Tai et al.

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