Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof

US8299204B2 · kind B2 · utility

Assignee

• Eastman Chemical Company · US

Inventors

• Ted Calvin Germroth · Kingsport, US
• Gary Wayne Connell · Church Hill, US
• Emmett Dudley Crawford · Kingsport, US
• Thomas Joseph Pecorini · Kingsport, US
• Douglas Stephen McWilliams · Elizabethton, US
• Benjamin Fredrick Barton · Kingsport, US
• Damon Bryan Shackelford · Kingsport, US

Key dates

• Filing date: Oct 27, 2006
• Grant date: Oct 30, 2012
• Expiry date: Oct 27, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Described as one aspect of the invention are polyester compositions containing: (I) at least one polyester which comprises: (a) dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbons atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising: (i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and (ii) 1 to 99 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %.