Eastman Chemical Company

James T Tanner, Iii

Max Allen Weaver

Wayne P Pruett

Mark Rule

Jean Carroll Fleischer

James Christopher Matayabas, Jr

David E Mills

Robert M Finch

L Shane Moody

A segmented copolyester-ether polymer comprises 9.5 to 33 percent by weight hard segment residues of polybutylene terephthalate and 0.5 to 67 percent by weight soft segment residues of a polyether polyol comprised of n units of residue (1) and m units of residue (2), wherein the total value of n+m is in the range 2 to 70, m/(n+m) is in the range 0.05 to 0.98, and residues (1) and (2) have the structures: ##STR1## The polyether polyol is further characterized in that at least 95 percent of the hydroxyl groups are primary hydroxyl groups.

Copolyester-ether polymers

This invention relates to polymer compositions containing naphthalenedicarboxylic acid residues and having reduced fluorescence due to the presence of aromatic thioether compounds. More specifically, the polymer compositions contain poly(ethylene 2,6-naphthalene dicarboxylate) and 0.1 to 5 mole percent of an aromatic thioether compound. The pollers are useful for packaging applications where clarity and/or aesthetic appeal is important.

Naphthalenedicarboxylic acid polymers containing aryl thioethers and

Disclosed is a process for preparation of an aromatic thiol corresponding to the structure

Process for preparation of aromatic thiols

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Kingsport, TN, United States of America

James T Tanner, Iii