Eastman Chemical Company

Eastman-kodak Company

Other

Alan W White

Charles Michael Buchanan

Robert M Gardner

Barry G Pearcy

Matthew Davie Wood

Steven C Gedon

Fred D Barlow, Jr

Allan S Jones

Marc Alan Strand

Joey C Carico

Richard L McConnell

Joseph Robert Zoeller

Mary Therese Jernigan

William Alston Haile

John C Hubbs

Larry Cates Windes

Leron R Dean

Mark Elliott Tincher

Marti N Harrison

Jonathan Terrill Milburn

David C Herting

Alan George Wonders

Gary Wayne Connell

Bruce Roger DeBruin

Michael Paul Ekart

John Anthony Hyatt

Jimmy R Trotter

Stephen Weinhold

Richard Gill Bonner

Thomas Lloyd Yount

Jason Christopher Jenkins

Cheuk C Yau

Douglas Weldon Carico, Jr

Rodney Scott Armentrout

Randy S Beavers

Zhiyong Xia

Steven Paul Bellner

Carol J Greene

Douglas C Hoffman

Howard Smith Carman, Jr

Perry Michael Murdaugh, Sr

Roy Douglas Flores

There is provided an article comprising a copolyester containing residues of neopentyl glycol, 2,2,4,4-tetraalkyl 1,3-cyclobutanediol such as 2,2,4,4-tetramethyl 1,3-cyclobutanediol, tin atoms, aluminum atoms, an alkali or alkaline earth metal atoms such as lithium atoms, optionally phosphorus atoms, and having an It.V. of at least 0.55 dL/g, and Tg of at least 90&#xb0; C. Such higher It.V. copolyesters can now be made having high Tg, good thermal stability, and higher insertion of 2,2,4,4-tetraalkyl 1,3-cyclobutanediol.

Copolyesters containing neopentyl glycol and 2,2,4,4-tetraalkyl 1,3-cyclobutanediol

There is provided a copolyester containing residues of neopentyl glycol, 2,2,4,4-tetraalkyl 1,3-cyclobutanediol such as 2,2,4,4-tetramethyl 1,3-cyclobutanediol, tin atoms, aluminum atoms, an alkali or alkaline earth metal atoms such as lithium atoms, optionally phosphorus atoms, and having an It.V. of at least 0.55 dL/g, and Tg of at least 90&#xb0; C. Such higher It.V. copolyesters can now be made having high Tg, good thermal stability, and higher insertion of 2,2,4,4-tetraalkyl 1,3-cyclobutanediol.

Processes for producing polyethylene terephthalate copolyesters are disclosed, that include the steps of:

Copolyesters having improved thermal stability and methods for making them

A horizontal trayed reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The reactor can include a plurality of vertically spaced trays disposed within the horizontally elongated vessel shell. The reaction medium can flow in generally opposite directions on vertically adjacent trays so that the reaction medium flows generally back-and-forth through the reactor.

Horizontal trayed reactor

A stable catalyst solution suitable for catalyzing the polycondensation of reactants to make polyester polymers comprising: The hydroxyacid compounds enhance to solubility of M and Al in ethylene glycol, even at even at molar ratios of M:Al approaching 1:1. There is also provided a method for the manufacture of the composition, its feed to and use in the manufacture of a polyester polymer, and polyester polymers obtained by combining certain ingredients or containing the residues of these ingredients in the composition.

Non-precipitating alkali/alkaline earth metal and aluminum compositions made with organic hydroxyacids

Polyester compositions are disclosed that include polyester polymers or copolymers having incorporated therein carbon-coated iron particles that improve the reheat properties of the compositions. Processes for making such compositions are also disclosed. The carbon-coated iron particles may be incorporated in the polyester by melt compounding, or may be added at any stage of the polymerization, such as during the melt-phase of the polymerization. A range of particle sizes may be used, as well as a range of particle size distributions. The polyester compositions are suitable for use in packaging made from processes in which a reheat step is desirable.

Polyester polymer and copolymer compositions containing carbon-coated iron particles

A process to produce polyester product from alkylene oxide and carboxylic acid. More specifically this process relates to a process to produce polyethylene terephthalate where terephthalic acid and ethylene oxide are reacted to form a partially esterified terephthalic acid product and then the partially esterified product is further reacted with ethylene glycol to produce polyethylene terephthalate.

Process for production of a polyester product from alkylene oxide and carboxylic acid

This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, nonwovens, molded objects, and films prepared therefrom.

Copolyesters and fibrous materials formed therefrom

The process for producing polyesters, and in particular, polyethylene terephthalate (PET) which includes the use of antimony catalyst that is acidic phosphorus additive involves the addition of the catalyst prior to or together with the additive. Moreover, the amount of additive is selected so as to provide a resin that is at least substantially free of non-acidic inorganic compounds such as antimony phosphate which can be formed by the reaction of the catalyst with the additive. The process preferably includes an esterification step, a prepolymer step, and a polymerization step with the antimony catalyst being added prior to, during, or after, the esterification step while the phosphorus-containing additive is introduced prior to or during the prepolymer stage. Polyesters having low levels of elemental phosphorus are also disclosed.

Method for making polyesters employing acidic phosphorus-containing compounds

This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, molded objects, and films prepared therefrom.

Aliphatic aromatic copolyesters

Cellulose ester blends

Aliphatic-aromatic copolyesters and cellulose ester/polymer blends

Disclosed are poly(ethylene-co-diethylene terephthalate) polyesters useful for making thin films. The polyesters have a diethylene glycol repeat unit component of about 10-30 mol %. These polymers can be converted into thin films and are useful as protective barrier films, especially in packaging applications. These copolyesters can be used to make biaxially oriented films for metal lamination.

Polyesters for metal lamination

Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.

Biodegradable poly (3-Hydroxyalkanoate) compositions and blends

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Kingsport, TN, United States of America

Alan W White