Patents Assigned to Eastman Chemical Company
  • POLYESTER BASED COBALT CONCENTRATES FOR OXYGEN SCAVENGING COMPOSITIONS
    Publication number: 20080045637
    Abstract: A solid concentrate is provided having a combination of a transition metal present in an amount ranging from 1,000 to 40,000 ppm (weight by metal) and a polyester polymer present in an amount of at least 40 wt. % based on the weight of the concentrate. Concentrates made with highly modified polyester polymers are easy to compound with transition metals forming less brittle polymer upon melt extrusion. Bottle preforms and oxygen scavenging bottles can be made from these concentrates by combining solid polyester particles, solid polyamide particles, and solid these concentrate particles c into an melt processing zone, forming a melt, and forming an article directly from the melt. The b* color and the L* color and the haze levels of the preforms are improved over the preforms made with liquid carriers instead of solid concentrates.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 21, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Mark Stewart, Emerson Sharpe, Benjamin Gamble, Steven Stafford, Robert Estep, James Williams, Thomas Clark
  • METHOD FOR INCORPORATING NITROGEN CONTAINING METHINE LIGHT ABSORBERS IN PET AND COMPOSITIONS THEREOF
    Publication number: 20080045629
    Abstract: The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group consisting of dicarboxylic acids, dicarboxylic acid derivatives, and mixtures thereof, an antimony containing compound, a phosphorus containing compound, a metal containing compound, and a nitrogen containing methine light absorber. The reaction mixture is polymerized in a polycondensation reaction system. In another embodiment the light absorber is added while the reaction products of one reactor are being transferred to the next reactor in the polycondensation reaction system. The present invention is also directed articles made from the polyester resin.
    Type: Application
    Filed: September 21, 2007
    Publication date: February 21, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Max Weaver, Jason Pearson, Dale Blakely, Frederick Colhoun
  • Process for production of a polyester product from alkylene oxide and carboxylic acid
    Patent number: 7332548
    Abstract: 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.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: February 19, 2008
    Assignee: Eastman Chemical Company
    Inventors: Alan Wayne White, Michael Paul Ekart, Larry Cates Windes, Richard Gill Bonner, Alan George Wonders
  • Methods of blocking stains on a substrate to be painted, and composites suitable for use in such methods
    Patent number: 7332046
    Abstract: Methods of blocking stains on a substrate to be painted are disclosed, as are stain-blocking composites that are useful according to the disclosed methods. In a broad aspect, the methods include the steps of contacting a stained portion of the substrate with a dry film layer; applying pressure to the dry film layer to cause the dry film layer to adhere to the stained portion of the substrate and to at least a portion of the substrate adjacent the stained portion of the substrate; and subsequently coating the dry film layer and the adjacent substrate with one or more additional liquid coating layers.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: February 19, 2008
    Assignee: Eastman Chemical Company
    Inventors: Eurell Thomas Eubanks, Charles Givan Ruffner, Jr., Mark Dwight Clark, Edward Enns McEntire
  • Aromatic-acrylate tackifier resins
    Patent number: 7332540
    Abstract: A tackifier resin is provided comprising monomer units from at least one aromatic monomer and at least one acrylate monomer; wherein the tackifier resin has a low residual monomer concentration. In other embodiments of the invention, the tackifier resin does not significantly decrease the moisture vapor transport rate of an adhesive composition comprising the tackifier resin, does not significantly increase fogging of an adhesive composition comprising the tackifier resin, and does not significantly exhibit skin sensitivity properties. A process to produce the tackifier resin is also provided. The process comprises contacting a tackifier resin product stream with at least one carrier at a temperature sufficient to remove a portion of at least one residual monomer from the tackifier resin product stream to produce the tackifier resin.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: February 19, 2008
    Assignee: Eastman Chemical Company
    Inventors: Michel Hendrikus Theelen, Derek William Bamborough, Elisabeth Eduarda Catharina Geertruida Gielens
  • VERSATILE OXIDATION BYPRODUCT PURGE PROCESS
    Publication number: 20080039648
    Abstract: Disclosed is a process and apparatus for treating a purge stream in a carboxylic acid production process. The process employs a purge process that allows for the separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts, thus providing flexibility in the treatment and use of such oxidation byproducts.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 14, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Philip Gibson, Kenny Parker
  • VERSATILE OXIDATION BYPRODUCT PURGE PROCESS
    Publication number: 20080039649
    Abstract: Disclosed is a process and apparatus for treating a purge stream in a carboxylic acid production process. The process employs a purge process that allows for the separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts, thus providing flexibility in the treatment and use of such oxidation byproducts.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 14, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Philip Gibson, Kenny Parker
  • VERSATILE OXIDATION BYPRODUCT PURGE PROCESS
    Publication number: 20080039650
    Abstract: Disclosed is a process and apparatus for treating a purge stream in a carboxylic acid production process. The process employs a purge process that allows for the separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts, thus providing flexibility in the treatment and use of such oxidation byproducts.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 14, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Philip Gibson, Kenny Parker
  • Thermal crystallization of polyester pellets in liquid
    Patent number: 7329723
    Abstract: A process for thermally crystallizing a polyester polymer by introducing pellets into a liquid medium having a temperature of at least 140° C. within a liquid medium zone and crystallizing the submerged pellets at or above the vapor pressure of the liquid medium without increasing the molecular weight of the pellets, and while the pressure on at least a portion of the pellets is equal to or greater than the vapor pressure of the liquid medium, separating at least a portion of said pellets and at least a portion of the liquid medium from each other. The crystallization is desirably conducted in the liquid medium zone without mechanically induced agitation. Optionally, the pellets are formed by an underfluid pelletizer.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: February 12, 2008
    Assignee: Eastman Chemical Company
    Inventors: Mary Therese Jernigan, Michael Paul Ekart, Luciano Dalmacio Samitier, Cory Lee Wells, Larry Cates Windes
  • BLENDS OF POLYESTERS WITH MODIFIED POLYCARBONATES
    Publication number: 20080033088
    Abstract: Disclosed are polymer blends comprising polycarbonate(s) and polyester(s) wherein the polycarbonate is a polycarbonate derived from dihydric phenols, aromatic dicarboxylic acid residues and carbonic acid residues and the polyester comprises residues of or is derived from one or more aromatic phthalic acid residues, 1,4-cyclohexanedimethanol, and alkylene glycols other than 1,4-cyclohexanedimethanol.
    Type: Application
    Filed: August 23, 2007
    Publication date: February 7, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventor: Wesley Hale
  • Optimized Liquid-Phase Oxidation
    Publication number: 20080031789
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Application
    Filed: August 29, 2007
    Publication date: February 7, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Alan Wonders, Howard Jenkins, Lee Partin, Wayne Strasser, Marcel deVreede
  • Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system
    Patent number: 7326808
    Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. A solvent purification system is employed to remove of at least one aromatic impurity present in a solvent purification feed. At least about 20 weight percent of the solvent purification feed originates from a cooled, post-digestion, TPA-containing slurry.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: February 5, 2008
    Assignee: Eastman Chemical Company
    Inventors: Alan George Wonders, Ronald Buford Sheppard, Martin De Boer, Lee Reynolds Partin, Raymond Elbert Fogle
  • Polycarboxylic acid production system with enhanced heating for oxidative digestion
    Patent number: 7326807
    Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes an novel method for heating the slurry and/or reaction medium subjected to oxidative digestion.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: February 5, 2008
    Assignee: Eastman Chemical Company
    Inventors: Alan George Wonders, Robert Lin, Leigh A. Alexander, Thomas Michael Pell, Jr.
  • VERSATILE OXIDATION BYPRODUCT PURGE PROCESS
    Publication number: 20080027243
    Abstract: Disclosed is a process and apparatus for treating a purge stream in a carboxylic acid production process. The process employs a purge process that allows for the separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts, thus providing flexibility in the treatment and use of such oxidation byproducts.
    Type: Application
    Filed: August 16, 2007
    Publication date: January 31, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Philip Gibson, Kenny Parker
  • POLYESTER BASED COBALT CONCENTRATES FOR OXYGEN SCAVENGING COMPOSITIONS
    Publication number: 20080021142
    Abstract: A solid concentrate is provided having a combination of a transition metal present in an amount ranging from 1000 to 40,000 ppm (weight by metal) and a polyester polymer present in an amount of at least 40 wt. % based on the weight of the concentrate. Concentrates made with highly modified polyester polymers are easy to compound with transition metals forming less brittle polymer upon melt extrusion. Bottle preforms and oxygen scavenging bottles can be made from these concentrates by combining solid polyester particles, solid polyamide particles, and solid these concentrate particles c into an melt processing zone, forming a melt, and forming an article directly from the melt. The b* color and the L* color and the haze levels of the preforms are improved over the preforms made with liquid carriers instead of solid concentrates.
    Type: Application
    Filed: August 22, 2007
    Publication date: January 24, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Mark Stewart, Emerson Sharpe, Benjamin Gamble, Steven Stafford, Robert Estep, James Williams, Thomas Clark
  • POLYESTER RESIN COMPOSITIONS FOR CALENDERING
    Publication number: 20080015297
    Abstract: A polyester resin composition is calendered to produce a film or a sheet. The polyester resin composition is a polyester having a crystallization half time from a molten state of at least 5 minutes combined with an additive for preventing sticking of the polyester to calendering rolls.
    Type: Application
    Filed: August 23, 2007
    Publication date: January 17, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Paul Flynn, Richard McConnell, Hubertus Jacobus Moolenaar, Timothy Sanders
  • Process to Produce an Enrichment Feed
    Publication number: 20080009650
    Abstract: A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
    Type: Application
    Filed: August 27, 2007
    Publication date: January 10, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Johannes Sluijmers, Kenny Parker, Philip Gibson, Marcel de Vreede, Ardie Heijblom
  • FLUIDIZABLE CARBON CATALYSTS
    Publication number: 20070299277
    Abstract: Disclosed are fluidizable catalysts comprising carbonized, polysulfonated vinylaromatic polymer particles. These carbonized polymer particles can be active catalysts by themselves or can act as supports for active catalyst components. These novel catalysts show excellent fluidization behavior over a wide range of gas velocities. Also disclosed are processes for making fluidizable catalysts, for fluidizing these catalysts, and for the preparation of carbonylation products with these catalysts.
    Type: Application
    Filed: September 12, 2007
    Publication date: December 27, 2007
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Gerald Tustin, Joseph Zoeller, Richard Colberg
  • HYDROCARBOXYLATION PROCESS
    Publication number: 20070299280
    Abstract: Disclosed is a hydrocarboxylation process for the production of carboxylic acid from olefins wherein an olefin, water, a Group VIII metal hydrocarboxylation catalyst, an onium salt compound are combined in a reaction zone and contacted with carbon monoxide under hydrocarboxylation conditions of pressure and temperature The process does not require or utilize the addition of a hydrogen halide or an alkyl halide exogenous or extraneous to the hydrocarboxylation process.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Joseph Robert Zoeller, Mary Kathleen Moore
  • Oxidation System with Internal Secondary Reactor
    Publication number: 20070292320
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Application
    Filed: August 29, 2007
    Publication date: December 20, 2007
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Alan Wonders, Thomas Woodruff, Ronald Sheppard, Wayne Strasser