With Nonphenolic Compound Having At Least Two Hydroxyl Groups Or Salts Thereof As Reactant Patents (Class 528/209)
  • Patent number: 8846848
    Abstract: Provided are monodisperse synthetic dendrimer calibrants for mass spectrometry. The calibrants are distinguished by their relative ease and rapidity of synthesis, comparatively low cost, long shelf life, high purity, and amenability to batch synthesis as mixtures. The latter characteristic enables parallel preparation of higher molecular weight compounds displaying useful distributions of discrete molecular weights, thereby providing multi-point mass spectrometry calibration standards. Methods of making and using said calibrants are also provided.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: September 30, 2014
    Assignee: The Administrators of the Tulane Educational Fund
    Inventor: Scott M. Grayson
  • Patent number: 8703252
    Abstract: A multi-layer stretched film has 251 or more alternating layers which consist of first layers and second layers, wherein the first layers are made of a polyester which contains (i) 5 to 50 mol % of a naphthoic acid component as a dicarboxylic acid component and (ii) a diol having an alkylene group with 2 to 10 carbon atoms as a diol component; and the second layers are made of a thermoplastic resin having an average refractive index of 1.50 to 1.60 and differences in refractive index among a uniaxial stretching direction, a direction orthogonal to the uniaxial stretching direction and a film thickness direction of 0.05 or less before and after stretching, and the film has specific reflectance characteristics for a P polarization component and an S polarization component.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Teijin Limited
    Inventors: Taro Oya, Mitsumasa Ono, Tetsuo Yoshida
  • Publication number: 20140050692
    Abstract: The invention provides polymers and methods for the treatment of pain and inflammation.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 20, 2014
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Kathryn E. Uhrich, Roselin Rosario-Melendez
  • Publication number: 20130041045
    Abstract: The present invention relates to dephenolic compounds, an example of which is shown below, which are functionalized, and polymers formed from the same. Polymers formed from the functionalized diphenolics are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Application
    Filed: September 5, 2012
    Publication date: February 14, 2013
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 8349991
    Abstract: The present invention relates to amphiphilic polymers, and micelles and compositions comprising the same, and their use in a variety of biological settings, including imaging, targeting drugs, or a combination thereof for diagnostic and therapeutic purposes.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: January 8, 2013
    Assignees: Massachusetts Institute of Technology, University of Massachusetts Lowell
    Inventors: Clark K. Colton, Arthur Watterson, Rajesh Kumar, Virinder S. Parmar, Robert Fisher, Jayant Kumar
  • Patent number: 8216704
    Abstract: A biaxially oriented laminated polyester film which has excellent dimensional stability to environmental changes such as temperature and humidity variations and excellent flatness and windability. A biaxially oriented laminated polyester film comprising a film layer B on one side of a film layer A and having a surface roughness (RaB) on the film layer B side which is 1.0 nm or more larger than the surface roughness (RaA) on the film layer A side, wherein at least one of the film layers comprises an aromatic polyester (I) composed of a glycol component and a dicarboxylic acid component containing 5 mol % or more and less than 80 mol % of a recurring unit represented by the following formula (A): wherein RA is an alkylene group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: July 10, 2012
    Assignee: Teijin Limited
    Inventors: Eiji Kinoshita, Ieyasu Kobayashi, Mitsuo Tojo, Tomoyuki Kishino, Kazuteru Kohno
  • Patent number: 8017715
    Abstract: An object of the present invention is to provide a polyester film having excellent dimensional stability to temperature and humidity. The present invention is a polyester containing a dicarboxylic acid component and a diol component, wherein (i) the dicarboxylic acid component contains not less than 5 mol % and less than 50 mol % of a recurring unit represented by the following formula (A) and more than 50 mol % and not more than 95 mol % of a recurring unit represented by the following formula (B): wherein RA is an alkylene group having 2 to 10 carbon atoms, wherein RB is a phenylene group or naphthalenediyl group; and (ii) the diol component contains 90 to 100 mol % of a recurring unit represented by the following formula (C): —O—RC—O—??(C) wherein RC is an alkylene group having 2 to 10 carbon atoms, and a film comprising the same.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: September 13, 2011
    Assignee: Teijin Limited
    Inventors: Eiji Kinoshita, Tomoyuki Kishino, Kazuteru Kohno, Tatsuya Ogawa
  • Patent number: 7884173
    Abstract: To provide an aromatic polyester which is formed into a film having excellent heat resistance, color, mechanical properties, dimensional stability and gas barrier properties and a manufacturing process thereof; the aromatic polyester comprises a dicabroxylic acid component and a diol component, wherein (i) the dicarboxylic acid component contains 50 to 100 mol % of a recurring unit represented by the following formula (A): ?wherein R is an alkylene group having 2 to 10 carbon atoms, (ii) the aromatic polyester has an intrinsic viscosity measured at 35° C. by using a mixed solvent of P-chlorophenol and 1,1,2,2-tetrachloroethane (weight ratio of 40/60) of 0.4 to 3.0; (iii) the aromatic polyester has a content of a recurring unit represented by the following formula (D) of less than 10 mol %: —O—CH2CH2—O—CH2CH2—O—??(D) (iv) the aromatic polyester has a terminal carboxyl group concentration of 200 eq/ton or less; and (v) the aromatic polyester has an alkali metal content of 300 ppm or less.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: February 8, 2011
    Assignee: Teijin Limited
    Inventors: Kazuteru Kohno, Eiji Kinoshita, Tomoyuki Kishino
  • Publication number: 20100016539
    Abstract: To provide an aromatic polyester which is formed into a film having excellent heat resistance, color, mechanical properties, dimensional stability and gas barrier properties and a manufacturing process thereof; the aromatic polyester comprises a dicarboxylic acid component and a diol component, wherein (i) the dicarboxylic acid component contains 50 to 100 mol % of a recurring unit represented by the following formula (A): wherein R is an alkylene group having 2 to 10 carbon atoms, (ii) the aromatic polyester has an intrinsic viscosity measured at 35° C. by using a mixed solvent of P-chlorophenol and 1,1,2,2-tetrachloroethane (weight ratio of 40/60) of 0.4 to 3.0; (iii) the aromatic polyester has a content of a recurring unit represented by the following formula (D) of less than 10 mol %: —O—CH2CH2—O—CH2CH2—O—??(D) (iv) the aromatic polyester has a terminal carboxyl group concentration of 200 eq/ton or less; and (v) the aromatic polyester has an alkali metal content of 300 ppm or less.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 21, 2010
    Applicant: TEIJIN LIMITED
    Inventors: Kazuteru Kohno, Eiji Kinoshita, Tomoyuki Kishino
  • Patent number: 7511081
    Abstract: The present invention relates to a recycling method of a mixed waste of polyester and polyamide (hereinafter, referred to as “mixed waste”) in which polyesters including polyethylene terephthalate and polyamides are inseparable from one another. In accordance with the recycling method of the present invention, it is possible to prepare a solid block polymer having an acid value of 1 to 150 mgKOH/g, a weight average molecular weight of 3,000 to 50,000 and a softening point of 10 to 150° C., or a liquid polyester-amide block polymer composition having good compatibility, solubility and dispersibility. In addition, the polymer having an acid value of more than 20 mgKOH/g is reacted with a basic compound to form a neutralized salt which is then used to prepare a water-soluble polyester-amide block polymer composition.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: March 31, 2009
    Inventors: Do-Gyun Kim, Hyo-Sung Kim
  • Publication number: 20090036600
    Abstract: The present invention describes a polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, a process for the preparation thereof, the use of an aromatic diol having a single benzene ring for the preparation of polyhydroxycarboxylic acid, in particular polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, as well as a method of preparing injection-molded goods or blown film, polymer blends, composite materials or nanocomposite materials using said polyhdroxycarboxylic acid.
    Type: Application
    Filed: September 28, 2005
    Publication date: February 5, 2009
    Inventors: Nils Dan Anders Södergard, Erik Mikael Stolt
  • Publication number: 20080119631
    Abstract: A thermoplastic composition is disclosed, comprising: a polymer component comprising a polyestercarbonate copolymer comprising ester units and carbonate units; a polycarbonate copolymer comprising branched carbonate units and carbonate units; and 0.01 to 10 wt. %, based on the total weight of the polymer component, of a polymeric compound comprising at least two epoxy groups, wherein the polymeric compound has a weight average molecular weight of 1,500 to 18,000; wherein a test article having a thickness of 3.2 mm and molded from the thermoplastic composition retains more ductility after aging at 134° C. and 100% humidity for 48 hours than an article having a thickness of 3.2 mm and molded from the same thermoplastic composition without the polymeric compound comprising at least two epoxy groups, each measured in accordance with ASTM D3763-02.
    Type: Application
    Filed: August 27, 2007
    Publication date: May 22, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Brian D. Mullen
  • Patent number: 6624258
    Abstract: An agent for imparting flame retardancy to a thermoplastic resin contains a polyhydric phenol such as a tannin compound as an effective component. The thermal stability of the thermoplastic resin can be improved so as to elevate the decomposition temperature of the thermoplastic resin if a small amount of the flame retardancy imparting agent is added to the thermoplastic resin so as to suppress the combustibility of the thermoplastic resin.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 23, 2003
    Assignee: Tohoku Munekata Co., Ltd.
    Inventor: Susumu Nikkeshi
  • Patent number: 6482915
    Abstract: The invention provides a method for producing a thermotropic liquid crystalline polymer of high quality at high yield and in short polymerization time, which method includes polymerizing staring monomers I, II, III, and IV, i.e., (I) an aromatic hydroxycarboxylic acid, etc.; (II) an aromatic dicarboxylic acid and an alicyclic dicarboxylic acid; (III) an aromatic diol, an alicyclic diol, an aliphatic diol, etc.; and (IV) an aromatic hydroxylamine, an aromatic diamine, etc. in the presence of an acylating agent, wherein the starting materials are charged so as to satisfy the following equations (1) to (4): 0.0015≦((A)−(B))/((A)+(B))≦0.006  (1); 1.01≦(D)/(C)≦1.08  (2); 0≦(E)≦40  (3); and (D)/(C)≧−0.002 ×(E)+1.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: November 19, 2002
    Assignee: Polyplastics Co., Ltd.
    Inventor: Toshiaki Yokota
  • Patent number: 6172127
    Abstract: The invention herein relates to a process of preparing a novel polyimide foam having superior heat-resistance, flame retardancy, homogeneous size and distribution of cells, and low density, wherein a polyimide precursor in a granular form is prepared by means of using heterocyclic amine as catalyst and then foaming. According to the present invention, the preparing process of a polyimide foam comprises reacting aromatic carboxylic acid or the anhydrides thereof with an excess of aliphatic univalent alcohol to yield an aromatic ester solution. To the aromatic ester solution, divalent amines or the mixture thereof were added in the equivalent amount of said carboxylic acid or the anhydrides thereof in addition to a catalyst and surfactant to yield a polyimide. Then, the precursor in a granular form mixture was imidized while foaming by means of pre-heating and then heating in a microwave oven, after which was cured at a high temperature.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: January 9, 2001
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kil Yeong Choi, Jae Heung Lee, Sung Goo Lee, Mi Hie Yi, Seung Su Kim
  • Patent number: 5973072
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenolic urethane reactive diluent. The phenolic urethane reactive diluent may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 26, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Frank N. Jones, Vijay Swarup, Ramachandran P. Subrayan, Suru Zhang
  • Patent number: 5744125
    Abstract: Disclosed are cosmetic melanins of different colors produced by procedures involving oxidative polymerization of monomeric precursors of melanin and/or co-monomers that enhance substantivity or adherence of the melanins to the skin and hair. Also disclosed are methods for preparing cosmetic melanins and methods for using these compositions topically to produce a natural-appearing tan and to prevent damage to skin caused by UV exposure.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: April 28, 1998
    Assignee: Yale University
    Inventors: John M. Pawelek, James T. Platt
  • Patent number: 5631330
    Abstract: Non liquid-crystalline esterphenol-capped liquid polymer and polyol compositions in combination with an amino crosslinking agent endow coating compositions containing them with the ability of providing films having superior properties. The esterphenol-capped polymers and polyols can be prepared by direct esterification of hydroxybenzoic acid without its decarboxylation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Albert I. Yezrielev, William E. Wellman, Ralph M. Kowalik, George A. Knudsen, Michael G. Romanelli
  • Patent number: 5464926
    Abstract: Oligomeric monomers are produced by reaction of a bisphenol compound with ther a dihalobenzophenone or a (2,2)bis(4-halophenyl)hexafluoropropane and any other activated halogen containing aromatic compounds in the presence of a base and an appropriate solvent. The resulting oligomeric product, a dialkaline bisphenate terminated salt, is then reacted with 4-nitrophthalonitrile to form an oligomer-based phthalonitrile. These oligomers, in the presence or absence of an curing agent, may then be heated to form high temperature thermosetting polymers. These polymers can potentially be used as advanced materials for composites, as adhesives, and for microelectronic applications.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: November 7, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 5352760
    Abstract: Oligomeric monomers are produced by reaction of a bisphenol compound with ther a dihalobenzophenone or a (2, 2) bis (4-halophenyl) hexafluoropropane and any other activated halogen containing aromatic compounds in the presence of a base and an appropriate solvent. The resulting oligomeric product, a dialkaline bisphenate terminated salt, is then reacted with 4-nitrophthalonitrile to form an oligomer-based phthalonitrile. These oligomers, in the presence or absence of an curing agent, may then be heated to form high temperature thermosetting polymers. These polymers can potentially be used as advanced materials for composites, as adhesives, and for microelectronic applications.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: October 4, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 5338828
    Abstract: Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: August 16, 1994
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Jimmy D. Earls
  • Patent number: 5144055
    Abstract: Liquid crystalline bis-chlorocarbonic acid esters are 4-hydroxybenzoic acid-(4'-hydroxyphenyl) esters corresponding to the following formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 denote, independently of one another, hydrogen, a halogen atom or a C.sub.1 to C.sub.6 alkyl group. Preparation of (I) and liquid crystalline N-alkyl polyurethanes and polycarbonates prepared from (I) are other invention embodiments.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: September 1, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns P. Muller, Bernhard Jansen, Wolfgang Calaminus, Rolf Dhein
  • Patent number: 4980441
    Abstract: Liquid crystalline bis-chlorocarbonic acid esters are 4-hydroxybenzoic acid-(4'-hydroxyphenyl) esters corresponding to the following formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 denote, independently of one another, hydrogen, a halogen atom or a C.sub.1 to C.sub.6 alkyl group. Preparation of (I) and liquid crystalline N-alkyl polyurethanes and polycarbonates prepared form (I) are other invention embodiments.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: December 25, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns P. Muller, Bernhard Jansen, Wolfgang Calaminus, Rolf Dhein
  • Patent number: 4841012
    Abstract: Polyester resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of(A) a dicarboxylic acid corresponding to the structure ##STR1## and (B) a diol selected from the group consisting of ethylene glycol, 1,4-butane diol and 1,4-cyclohexanedimethanol.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: June 20, 1989
    Assignee: Eastman Kodak Company
    Inventor: Robert B. Barbee
  • Patent number: 4792598
    Abstract: New poly-dicarboxylic acid anhydrides, which are suitable as bio-degradable matrix materials for the controlled release of medicinal agents in humans. The anhydrides have the following formula: ##STR1## where ##STR2## where n=an integer of two or more, for the first three radicals, or one or more for the fourth.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: December 20, 1988
    Assignee: Sandoz Ltd.
    Inventor: Gerd Ziegast
  • Patent number: 4608428
    Abstract: Copolymers of an (ethylenedioxy)bis benzoate, an alkylene diol and a (2-alkenyl or alkyl) succinic anhydride, as well as surgical devices formed therefrom; especially, flexible monofilament surgical sutures having unique handling and knot-tying characteristics.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: August 26, 1986
    Assignee: Ethicon, Inc.
    Inventors: Shalaby W. Shalaby, Dennis D. Jamiolkowski
  • Patent number: 4587312
    Abstract: Sulfone-ester polymers containing pendent ethynyl groups and a direct and multi-step process for preparing same are disclosed. The multi-step process involves the conversion of a pendent bromo group to the ethynyl group while the direct route involves reacting hydroxy-terminated sulfone oligomer or polymers with a stoichiometric amount of 5-(4-ethynylphenoxy)isophthaloyl chloride. The 5-(4-ethynylphenoxy)isophthaloyl chloride and process for preparing same are also disclosed.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: May 6, 1986
    Assignee: The United States of America as represented by the National Aeronautics and Space Administration
    Inventors: Paul M. Hergenrother, Brian J. Jensen
  • Patent number: 4581438
    Abstract: A novel, substantially linear aromatic polyester comprising 6,6'-(ethylenedioxy)di-2-naphthoic acid as a main acid component and an aliphatic glycol having 2 to 10 carbon atoms in the main chain of the glycol as a main glycol component. The aromatic polyester is prepared by condensing an ethylene glycol diester of 6,6'-(ethylenedioxy)di-2-naphthoic acid, or a mixture of a major proportion of said naphthoate with a dicarboxylic acid, a diol, a hydroxycarboxylic acid or an ester-forming derivative thereof, at an elevated temperature. The aromatic polyester has excellent mechanical properties such as strength and Young's modulus.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: April 8, 1986
    Assignee: Teijin Limited
    Inventors: Hiroo Inata, Hiroyuki Umetani, Shunichi Matsumura
  • Patent number: 4574148
    Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 95 mole percent of a first diacid selected from [thiobis(p-phenyleneoxy)]diacetic acid, [sulfonylbis(p-phenyleneoxy)]diacetic acid, and mixtures thereof, and about 5 to about 95 mole percent of naphthalene dicarboxylic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: March 4, 1986
    Assignee: Eastman Kodak Company
    Inventors: Thomas H. Wicker, Jr., Robert B. Barbee
  • Patent number: 4552948
    Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 50 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and about 50 to about 95 mole percent of terephthalic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: November 12, 1985
    Assignee: Eastman Kodak Company
    Inventors: Robert B. Barbee, Thomas H. Wicker, Jr.
  • Patent number: 4518763
    Abstract: Disclosed are polyesters prepared from hetero-atom-containing dicarboxylic acids and hetero-atom-containing diols. These polyesters have low permeability to oxygen and carbon dioxide and are useful in packaging applications such as for food and beverages.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: May 21, 1985
    Assignee: Eastman Kodak Company
    Inventors: Robert B. Barbee, Burns Davis
  • Patent number: 4511706
    Abstract: Copolymers of an (ethylenedioxy)bis benzoate, an alkylene diol and a (2-alkenyl or alkyl) succinic anhydride, as well as surgical devices formed therefrom; especially, flexible monofilament surgical sutures having unique handling and knot-tying characteristics.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: April 16, 1985
    Assignee: Ethicon, Inc.
    Inventors: Shalaby W. Shalaby, Dennis D. Jamiolkowski
  • Patent number: 4510295
    Abstract: Absorbable, radiation sterilizable polymers, useful as sutures and other medical and surgical devices, are produced from polyesters of substituted benzoic acid, dihydric alcohols, and glycolide and/or lactide.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: April 9, 1985
    Assignee: Ethicon, Inc.
    Inventors: Rao S. Bezwada, Shalaby W. Shalaby, Dennis D. Jamiolkowski
  • Patent number: 4452965
    Abstract: This invention relates to random elastomeric copolyesters containing units of low molecular weight glycol, poly(alkylene oxide)glycol, dimer acid and 1,2 bis(4-carbomethoxy phenoxy)ethane.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: June 5, 1984
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: William C. T. Tung
  • Patent number: 4440922
    Abstract: The present invention provides containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 100 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and 0 to about 95 mole percent of terephthalic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: April 3, 1984
    Assignee: Eastman Kodak Co.
    Inventors: Robert B. Barbee, Thomas H. Wicker, Jr.
  • Patent number: 4433132
    Abstract: A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: February 21, 1984
    Assignee: Polaroid Corporation
    Inventors: Howard G. Rogers, Russell A. Gaudiana, Richard A. Minns
  • Patent number: 4426512
    Abstract: The present invention provides containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 60 mole percent of a first diacid selected from [thiobis(p-phenyleneoxy)]diacetic acid, [sulfonylbis(p-phenyleneoxy)]diacetic acid, and mixtures thereof, and about 40 to 95 mole percent of terephthalic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: January 17, 1984
    Assignee: Eastman Kodak Company
    Inventors: Robert B. Barbee, Thomas H. Wicker, Jr.
  • Patent number: 4414381
    Abstract: A melt-processable aromatic polyester anhydride characterized in that from 5 to 80% of the units linking the reactant residues in the polymer chain have the formula: ##STR1## the remaining linkages between the residues of the reactants being of the formula: ##STR2## optionally together with linkages of the formula: ##STR3## substantially all of said remaining linkages being disposed in coaxial or parallel and oppositely directed manner with respect to the residues to which they are linked, the polyester anhydride having a solubility of less than 5% by weight in dimethyl sulphoxide at room temperature.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: November 8, 1983
    Assignee: Imperial Chemical Industries PLC
    Inventors: Brian P. Griffin, William A. MacDonald
  • Patent number: 4395513
    Abstract: An improved high performance thermally stable polymer is provided. Such polymer is composed primarily of recurring 6-oxy-2-naphthoyl moieties and is preferably a homopolymer of 6-oxy-2-naphthoyl moieties, i.e. poly(6-oxy-2-naphthoate). It is particularly suited for use in the formation of plasma spray coatings and compression or impact molded articles, and has been found to offer a thermal stability which is superior to that of poly(4-oxybenzoate). Small amounts (as described) of other ester-forming moieties and/or amide-forming moieties optionally may also be present.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: July 26, 1983
    Assignee: Celanese Corporation
    Inventor: Gordon W. Calundann
  • Patent number: 4338247
    Abstract: Disclosed are highly stable copolyesters having inherent viscosities of at least 0.4 and containing in copolymerized form from about 0.3 to about 5.0% by weight of one or more of the stabilizing moieties having the general formula ##STR1## where R and R.sub.1 are each a chemical bond or an alkylene group of 1-6 carbons; R.sub.2 is alkyl, cycloalkyl, or aryl; R.sub.3 represents 1-5 groups each independently selected from H, Cl, F, alkyl, cycloalkyl, alkoxy, aryl or aryloxy; wherein all of the above alkyl and alkylene moieties comprising or being part of the R.sub.2 or R.sub.3 groups contain from 1-8 carbons; and wherein all of the above alkyl, alkylene, aryl and cycloalkyl moieties may be substituted with up to three substituents selected from halogen, alkyl of 1-8 carbons, alkoxy of 1-8 carbons, aryl, cycloalkyl and CN.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: July 6, 1982
    Assignee: Eastman Kodak Company
    Inventors: Joseph S. Zannucci, Bobby J. Sublett
  • Patent number: 4288607
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: September 8, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
  • Patent number: 4239882
    Abstract: A polyester is produced in an improved process by esterification or interesterification of an aromatic dicarboxylic acid or an alkyl ester thereof with 1,4-butanediol followed by polycondensation of the resulting ester characterized in reusing the 1,4-dibutanediol mixture distilled in the polycondensation step without purification as a starting material for production of more polyester.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: December 16, 1980
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Tsuneo Kimura, Katsuhisa Kohyama, Takehiro Okada, Katsuyuki Sakata
  • Patent number: 4152511
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: May 1, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer