Patents Represented by Attorney, Agent or Law Firm Harry J. Gwinnell
  • Patent number: 6201139
    Abstract: Disclosed are processes for the isomerization of epoxyalkenes to dihydrofurans by contacting an epoxyalkene with a catalyst comprising a quaternary organic onium iodide compounds, optionally deposited on a non-acidic support and/or in combination with a Lewis acid co-catalyst. The catalyst may comprise a supported catalyst, an unsupported catalyst or a solution of the catalytically-active components in an inert, organic solvent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 13, 2001
    Assignee: Eastman Chemical Company
    Inventors: Stephen Neal Falling, Patricia Lopez-Maldonado
  • Patent number: 6197887
    Abstract: A novel composition is disclosed comprising about 85 to about 99 weight percent based on the composition of a polymeric ethylenic containing component having a density no greater than 0.94 g/cc, and about 1 to about 15 weight percent based on the composition, of a propylene polymer comprising 0 to less than about 1 weight percent based on the polymer, of olefin comonomer units and from about greater than 99 to 100 weight percent propylene, based on the polymer, the propylene polymer having a viscosity of about 1 to about 2,000 mPa.s at 190° C. and a needle penetration of about 5 to about 50 dmm at 23° C. Also disclosed are films produced from the composition, both blown and cast, and both monolayer and multilayer. Also disclosed are processes for stretch wrapping and forming blown film.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: March 6, 2001
    Assignee: Eastman Chemical Company
    Inventor: Marc Stacey Somers
  • Patent number: 6197223
    Abstract: The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, with b) an organic compound of Formula II X—B—X1 wherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formula and a cyclic compound having the general formula wherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remaining portion of A
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Chemical Company
    Inventors: Max Allen Weaver, James John Krutak, Sr., Brian Edison Maxwell, Gerry Foust Rhodes, Samuel David Hilbert, Jean Carroll Fleischer, William Whitfield Parham
  • Patent number: 6197856
    Abstract: The invention relates to binder fibers made from copolyesters, the copolyesters themselves and catalysts and processes for producing the copolyesters. More particularly, the invention relates to copolyesters formed from 1,4-cyclohexanedimethanol, ethylene glycol and terephthalic acid, napthalenedicarboxylic acid, 1,4-cyclohexane dicarboxylic acid and esters or anhydrides thereof. Such copolyesters may be formed into a variety of products, especially binder fibers for nonwoven fabrics.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: March 6, 2001
    Assignee: Eastman Chemical Company
    Inventors: Leron R. Dean, Michael D. Lambert, William A. Haile, F. Henry Dillow, Mark E. Tincher
  • Patent number: 6197851
    Abstract: The present invention relates to a container preform comprising: a polymer suitable for the production of a stretch blow molded bottle and at least one organic or metallated organic near infrared absorbing compound which absorbs at least twice as much light between about 700 nm and about 1200 nm as between about 400 mn and about 700 nm wherein said near infrared absorbing compound is present in an amount sufficient to improve reheat rate of said preform. Suitable near infrared absorbing compounds include phthalocyanines, 2,3-napthalocyanines, squaraines (squaric acid derivatives), croconic acid derivatives, substituted indanthrones and certain highly substituted anthraquinones. A process for improving the reheat rate of a container preform is also disclosed.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: March 6, 2001
    Assignee: Eastman Chemical Company
    Inventors: Brian Edison Maxwell, Max Allen Weaver, James John Krutak, Sr., William Whitfield Parham, Gerry Foust Rhodes, Jean Carroll Fleischer
  • Patent number: 6193498
    Abstract: A die plate is shown suitable for extruding a viscous material into a convenient form for the preparation of small pellets or particles. The die plate includes solid support portions and perforated portions. Each perforated portion of the die plate includes a major portion of holes through the die plate spaced from each other by a first distance and a transition portion separating the major portion from the solid support portions, with the transition portions having holes spaced from each other by a distance that is greater than the first distances.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: February 27, 2001
    Assignee: Eastman Chemical Company
    Inventors: Amy E. Castle, Mark A. Thrasher, Shane K. Kirk
  • Patent number: 6194615
    Abstract: The present invention relates to the composition, process of preparation, and use of novel derivatives prepared from 1,5-bis-(4′-carbomethoxyphenyl)-1,4-pentadien-3-one. These novel compositions can act as crosslinkers with polyfunctional monomeric, oligomeric, and/or polymeric anhydrides, esters, carboxylic acids, isocyantes, epoxies, carbonates, acetoacetates, and alkoxylated melamines.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: February 27, 2001
    Assignee: Eastman Chemical Company
    Inventors: Philip Conrad Heidt, Matthew Lynn Elliott
  • Patent number: 6193841
    Abstract: This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture of APG and polyether glycol in paper composed of cellulose ester fibers and cellulose fibers and to calendaring of such paper is also disclosed.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: February 27, 2001
    Assignee: Eastman Chemical Company
    Inventors: Charles Michael Buchanan, Eric Eugene Ellery, Matthew Davie Wood
  • Patent number: 6191300
    Abstract: Disclosed is a process for the preparation and recovery of cyclopropylacetonitrile by a novel combination of process steps beginning with a mixture of cyclopropylmethyl halide, a cyclobutyl halide and a 4-halo-1-butene. The process permits the recovery of substantially pure cyclopropylacetonitrile and cyclobutyl halide, e.g., cyclopropylacetonitrile and cyclobutyl halide each having a purity greater than about 95%.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Chemical Company
    Inventor: John Anthony Hyatt
  • Patent number: 6191306
    Abstract: Disclosed is a process for the preparation of cyclopropylglycine by a 5-step process wherein cyclopropanecarboxaldehyde is reacted with an &agr;-aminoalkylaromatic compound to obtain an imine which is reacted with a cyanide to produce an aminonitrile compound; the aminonitrile compound is hydrolyzed to the corresponding aminocarboxylic acid and finally the arylalkyl residue is removed from the amino group by hydrogenolysis.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Chemical Company
    Inventors: Daniel John Bayston, Jonathan Luke William Griffin, Arne Gruman, Mario Eugenio Cosimino Polywka, Ronald Michael Scott
  • Patent number: 6191239
    Abstract: A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more olefin comonomer(s) under polymerization conditions with a Ziegler-Natta type catalyst, trimethylaluminum and tetrahydrofuran. Also provided are films and articles produced therefrom.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Chemical Company
    Inventors: Randal Ray Ford, William Albert Ames, Kenneth Alan Dooley, Jeffrey James Vanderbilt, Alan George Wonders
  • Patent number: 6191238
    Abstract: A novel process for producing homopolymers and interpolymers of olefins which involves contacting an olefin and/or an olefin and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta catalyst and dinitrogen monoxide in an amount sufficient to reduce the electrostatic charge in the polymerization medium. Also provided is a process for reducing electrostatic charge in the polymerization of an olefin by adding dinitrogen monoxide.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Chemical Company
    Inventors: Randal Ray Ford, Jeffrey James Vanderbilt, Roxanna Lea Whitfield, Glenn Edward Moore
  • Patent number: 6187870
    Abstract: Disclosed is a process for the production of low molecular weight grafted polyolefins in which a molten polyolefin is grafted by reactive processing in a screw extruder at an elevated pressure. The molten polyolefin has a low viscosity and flows easily around the screw, thus the pressure is maintained in the screw extruder apparatus by the use of a pressure control device at the exit end of the extruder.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: February 13, 2001
    Assignee: Eastman Chemical Company
    Inventors: Richard K. Stuart, Jr., Randal R. Ford
  • Patent number: 6187879
    Abstract: A novel process for producing homopolymers and interpolymers of olefins which involves contacting an olefin and/or an olefin and at least one or more other olefin(s) under polymerization conditions with an olefin polymerization catalyst and dinitrogen monoxide in an amount sufficient to reduce the electrostatic charge in the polymerization medium. Also provided is a process for reducing electrostatic charge in the polymerization of an olefin by adding dinitrogen monoxide.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Chemical Company
    Inventors: Randal Ray Ford, Jeffrey James Vanderbilt, Roxanna Lea Whitfield, Glenn Edward Moore
  • Patent number: 6187385
    Abstract: This invention provides esters of acetoacetic acid useful as adhesion promoters for waterborne coatings compositions applied to corroded or rusty metal substrates. The esters of acetoacetic acid also function as a coalescing aid in the coating composition.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Chemical Company
    Inventor: Douglas Grant Atkins
  • Patent number: 6184394
    Abstract: Disclosed is a two-step process wherein a 4-acyl-2,3-dihydrofuran is converted to a 2-alkoxy-3-acyl-3-halotetrahydorfuran which then is contacted with an strong base to produce an alkyl 3-furoate. Also disclosed are novel 2-alkoxy-3-acyl-3-halotetrahydrofuran intermediates.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 6, 2001
    Assignee: Eastman Chemical Company
    Inventor: Stephen Neal Falling
  • Patent number: 6183848
    Abstract: An amorphous copolyester having a maximum melt viscosity at 1 radian/second and at about 260 to about 290° C. of about 12000 poise, a glass transition temperature ranging from about 88° C. to about 120° C., and an inherent viscosity of at least about 0.6 dl/g. The amorphous copolyesters comprise the reaction product of a diol component and a dicarboxylic acid component. The diol component comprises residues of from about 5.0 to about 50 mole % of 2,2′-(sulfonylbis (4,1-phenyleneoxy))-bis(ethanol) which has the following chemical formula: and from about 50 to about 95 mole % of a mixture of at least two diols selected from the group consisting of ethylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, and mixture thereof. The dicarboxylic acid component comprises residues of terephthalic acid, isophthalic acid, 1,4-cyclohexandedicarboxylic acid, 2,6-naphthalene dicarboxylic acid and mixtures thereof.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: February 6, 2001
    Assignee: Eastman Chemical Company
    Inventors: S. Richard Turner, Bobby J. Sublett, Gary W. Connell
  • Patent number: 6180559
    Abstract: Disclosed are certain catalysts and catalyst support materials and processes for the preparation of the catalyst support materials and for the selective hydrogenation of 3,4-epoxy-1-butene (EpB) to 1,2-epoxy-butane (butylene oxide—BO). The catalyst support materials have micropores filled with one or more inorganic oxides and the supported catalysts comprise one or more Group VIII metals deposited on the support materials. The rhodium-containing supported catalysts are especially useful for the selective hydrogenation of EpB to BO.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 30, 2001
    Assignee: Eastman Chemical Company
    Inventors: Brian Dale Roberts, John Robert Monnier, David Martin Hitch
  • Patent number: 6180748
    Abstract: The invention relates to a process of deactivating a polycarbonate, by mixing a polycarbonate having an active alkali metal catalyst residue therein with a deactivator represented of a formula of: wherein, R1-R7 and R9 are, independently, hydrogen; aliphatic hydrocarbon of from 1 to 20 carbon atoms; substituted aromatic hydrocarbon of from 6 to 20 carbon atoms; or unsubstituted aromatic hydrocarbon of from 6 to 20 carbon atoms; R8 and R10-R13 are, independently, substituted or unsubstituted aromatic hydrocarbon of from 6 to 20 carbon atoms; or aliphatic hydrocarbon of from 1 to 20 carbon atoms; A is a tetrafunctional hydrocarbon group; and x is an integer of from 1 to 3, at a temperature and time sufficient to deactivate the alkali metal catalyst to form a deactivated polycarbonate, wherein the deactivated catalyst is not removed from the deactivated polycarbonate. The invention also relates to a polycarbonate having a deactivated metal catalyst.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: January 30, 2001
    Assignee: Eastman Chemical Company
    Inventors: William R. Darnell, Theodore R. Walker, Jean C. Fleischer
  • Patent number: 6177574
    Abstract: Disclosed is a process for the preparation of a mixture of benzoxazolyl-stilbene compounds by the reaction of unsubstituted 4,4′-bis(benzoxazol-2-yl)stilbene with a substituted o-aminophenol or o-aminonaphthol to obtain a mixture comprising the unsubstituted 4,4′-bis(benzoxazol-2-yl)stilbene and at least one substituted 4,4′-bis(benzoxazol-2-yl)stilbene, 4-naphthoxazol-2-yl-4′-benzoxazol-2-ylstilbene and/or 4,4′-bis(naphthoxazol-2-yl)stilbene. These mixtures are useful as fluorescent brightening agents and light stabilizers for synthetic polymeric materials such as polyesters, polyamide and polyolefin textile materials and shaped articles.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: January 23, 2001
    Assignee: Eastman Chemical Company
    Inventor: Kim Steven Chamberlin