Process for preparing poly(ethylene 2,6-naphthalene dicarboxylat

Details Process for preparing poly(ethylene 2,6-naphthalene dicarboxylat Process for preparing poly(ethylene 2,6-naphthalene dicarboxylat

1993-08-09

1995-02-21

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528299, 528302, 528305, 528308, 525437, 264 21, 264239, 264240, C08G 63189

Patent

active

053917022

ABSTRACT:
This invention relates to poly(ethylene 2,6-naphthalene dicarboxylate) blends having reduced fluorescence. More specifically, the process involves melt blending poly(ethylene 2,6-naphthalene dicarboxylate) with 0.1 to 5 weight percent of a fluorescence quenching compound selected from a halogen containing aromatic compound, an aromatic ketone or a naphthol compound and thermoforming the blend into an article. The blends are useful for packaging applications where clarity and/or aesthetic appeal are of concern.

REFERENCES:
patent: 4045513 (1977-08-01), Knopka
patent: 4059546 (1977-11-01), Knopka
patent: 4101528 (1978-07-01), Knopka
CA116(6):42677v.
CA86(24):172389a.
CA84(6):32474h.
CA83(20):165176p.
CA83(12):98441f.
CA83(16):132696e.
Chen Shangxian et al., "Fluorescence Spectra of Poly(Ethylene-2,6-Naphthalene Dicarboxylate)", Scientia Sinica, vol. XXIV, No. 5, May 1981.
CAO Ti et al., "Intermolecular Excimer Interaction in Poly(Polytetramethylene Ether Glycol Aryl Dicarboxylate", Acta Chimica Sinica, vol. 42, No. 1, 1984.

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