Phenolic Reactant Contains A Single Phenolic -oh Group Or A Single Inorganic Phenolate Thereof Patents (Class 528/212)
  • Patent number: 6255405
    Abstract: A high-performance anti-reflective coating which highly absorbs a given light, e.g., deep ultraviolet rays, tenaciously adheres to substrates upon coating formation, is satisfactory in covering, and eliminates the influence of standing waves in the production of integrated circuits; novel light-absorbing polymers for forming the anti-reflective coating; and a process for producing the polymers. One of the polymers is produced by esterifying a copolymer comprising carboxylic anhydride groups and/or dicarboxylic acid groups such as maleic acid as basic recurring units with a hydroxylated aromatic chromophore. The unreacted carboxylic acid groups or acid anhydride groups remaining in the esterified light-absorbing polymer may be amidated and/or imidized with an aminated aromatic compound.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: July 3, 2001
    Assignee: Clariant International, Ltd.
    Inventors: Wen-Bing Kang, Yoshinori Nishiwaki, Ken Kimura, Syoko Matsuo, Hatsuyuki Tanaka
  • Patent number: 6251175
    Abstract: The present invention provides a jet ink composition and a method of jet printing onto non-porous substrates such as glass, metal, ceramics, and plastics images which have improved adhesion. The jet ink composition, which has short dry times, comprises an organic solvent, colorant, and a hydroxyaromatic resin with its hydroxyaromatic units being linked by a linkage other than alkylene ether linkage. The hydroxyaromatic units of the hydroxyaromatic resin are linked by, for example, an alkylene linkage. An example of a suitable hydroxyaromatic unit is a phenol. An example of the organic solvent is ethanol. The jet ink composition provides short dry times on non-porous substrates. In some embodiments of the ink composition, the image adhesion can be further improved by the use of an adhesion promoter such as a silane, a dendrimer, or a combination thereof.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: June 26, 2001
    Assignee: Marconi Data Systems Inc.
    Inventors: Linfang Zhu, Mohammed Siddiqui
  • Publication number: 20010003774
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Application
    Filed: February 4, 1999
    Publication date: June 14, 2001
    Inventors: JOSEPH A. AKKARA, DAVID L. KAPLAN, MADHO AYYAGARI
  • Patent number: 6242558
    Abstract: A 1,3-propanediol-based aromatic polyester such as polytrimethylene terephthalate is modified by reaction with a hindered phenolic acid or ester to provide an endcapped polyester which has improved resistance to generation of acrolein when heated in air.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: June 5, 2001
    Assignee: Shell Oil Company
    Inventor: Donald Ross Kelsey
  • Publication number: 20010002417
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(n-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Application
    Filed: February 4, 1999
    Publication date: May 31, 2001
    Inventors: JOSEPH A. AKKARA, DAVID L. KAPLAN, MADHU AYYAGARI
  • Publication number: 20010000520
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species.
    Type: Application
    Filed: December 13, 2000
    Publication date: April 26, 2001
    Applicant: General Electric Co.
    Inventors: Adrianus J.F.M. Braat, Hugo Ingelbrecht, Ruud Trion
  • Patent number: 6211328
    Abstract: The present invention relates to a phenol resin, in particular a phenol resin for resists suitable for forming resist patterns. The phenol resin of the present invention is obtained by reacting at least two components, i.e., a compound (A) such as 4-hydroxymethyl-2,6-dimethylphenol and a polymerizable phenol compound such as parahydroxystyrene or a polymer (B), which is a polymer of the polymerizable phenol compound, in a ratio of 1 to 50 moles of the compound (A) to 100 moles of the polymerizable phenol compound or 100 moles of structural unit of the polymerizable phenol compound contained in the polymer (B) in the presence of an acid and having a molecular weight of 2,000 to 20,000. Such a phenol resin provides good pattern shape, heat resistance, resolution, and sensitivity in resists for lithography.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 3, 2001
    Assignee: Gun Ei Chemical Industry Co., LTD
    Inventors: Yoshiaki Kurimoto, Katsuhiro Maruyama, Akira Yoshitomo, Satoru Yoshida, Satoru Kitano
  • Patent number: 6211327
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: April 3, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo Ingelbrecht, Ruud Trion
  • Patent number: 6207790
    Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers consisting essentially of recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, an aromatic diacid, at least a portion of which comprises 2,6-naphthalene dicarboxylic acid, and an aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4′-biphenol; which comprises incorporating into such polymers recurring units derived from resorcinol, wherein each of said recurring units is present in the polymer in specified amounts.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: March 27, 2001
    Assignee: Ticona LLC
    Inventors: H. Clay Linstid, III, Derrick B. McKie
  • Patent number: 6177182
    Abstract: Provided herein are novel polymeric coating materials for direct digital imaging by laser. More specifically the novel coating materials are thermally reactive near infrared absorption polymers designed for use with near infrared laser imaging devices. This invention further extends to the preparation and methods of use of the novel materials. The invention is particularly useful in the preparation of lithographic printing plates for computer-to-plate and digital-offset-press technologies. The invention extends to photoresist applications, to rapid prototyping of printed circuit boards and to chemical sensor development.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: January 23, 2001
    Assignee: American Dye Source, Inc.
    Inventor: My T. Nguyen
  • Patent number: 6166168
    Abstract: A novel polyalkyl ether/polyaryl ether sulfone or ketone copolymer and a specific polyether ester copolymer are useful for producing a medical material to be used to contact the blood; and methods for producing the medical material comprising said polyalkyl ether/polyaryl ether sulfone or ketone copolymer or a specific polyether ester copolymer.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: December 26, 2000
    Assignee: Teijin Limited
    Inventors: Hiroaki Kuwahara, Takeyuki Kawaguchi, Satoru Ohmori, Shunichi Matsumura
  • Patent number: 6150491
    Abstract: Polyaromatic compound made by polymerizing one or more aromatic monomers, least one of the one or more aromatic monomers having the following structure: ##STR1## wherein X is selected from the group consisting of OH and NH.sub.2, Y is selected from the group consisting of a halogen, a halogen-containing group, a boron-containing group, a phosphorus-containing group, a carboxyl group, a hydroxyacid group, a carboxyacid group, an amino group, an amino acid group, an amide group, an ester group, a hydroxyl group and a sulfonic acid group, R is an alkyl, phenyl, naphthyl, hydroxyphenyl, hydroxy naphthyl or hydroxy (.alpha., .beta., .gamma.) alkyl group, and n is an integer from 0 to 12. The (R).sub.n --Y group is preferably either ortho or para to X and more preferably is para to X.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 21, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Joseph A Akkara
  • Patent number: 6140455
    Abstract: Provided is a liquid crystalline polyester resin for extrusion molding having a solder heat resistant temperature of 250.degree. C. or more, wherein the ratio ((viscosity 2b)/(viscosity 1b)) of the melt viscosity (viscosity 1b) under a shearing speed of 1000/sec at the flow initiation temperature and the melt viscosity (viscosity 2b) under the same shearing speed at a temperature 20.degree. C. higher than the flow initiation temperature is from 0.10 to 0.70. The extrusion molding material of the above-described liquid crystalline polyester resin has excellent heat resistance, and can provide an extrusion molded article, especially a film having excellent appearance.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: October 31, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tohru Nagashima, Koichi Mizumoto, Manabu Hirakawa
  • Patent number: 6132884
    Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers having recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, at least one aromatic diacid and an aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4'-biphenol, which comprises incorporating into such polymers recurring units derived from resorcinol and at least one additional monomer that provides the resulting polymer with selected meta linkages, wherein each of said recurring units is present in the polymer in specified amounts.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: October 17, 2000
    Assignee: Ticona LLC
    Inventors: H. Clay Linstid, III, Dominick L. Cangiano, Ronald N. DeMartino, James E. Kuder, Vincent J. Provino
  • Patent number: 6127511
    Abstract: A preparation process of phenol aralkyl resin from phenol compound and aralkyl compound by controlling the temperature of reaction mass in the range of 70 to 240.degree. C. and simultaneously controlling the temperature of vapor phase potion and vapor-liquid interface portion of manufacturing equipment so as to keep the wall surface of the vapor phase portion and vapor-liquid interface portion in a wet state. The invention can prevent scale adhesion to the interior of manufacturing equipment, remarkably reduce the number of washing and scale removing procedures on the manufacturing equipment, and enable efficient manufacture of phenol aralkyl resin. When the phenol aralkyl resin obtained is used for a molding material, molded articles having excellent heat resistance and high reliability can be provided.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: October 3, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tomoyuki Kawabata, Yuzo Ono, Teruo Yuasa, Yukio Fukui
  • Patent number: 6124425
    Abstract: Provided herein are novel polymeric coating materials for direct digital imaging by laser. More specifically the novel coating materials are thermally reactive near infrared absorption polymers designed for use with near infrared laser imaging devices. This invention further extends to the preparation and methods of use of the novel materials. The invention is particularly useful in the preparation of lithographic printing plates for computer-to-plate and digital-offset-press technologies. The invention extends to photoresist applications, to rapid prototyping of printed circuit boards and to chemical sensor development.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: September 26, 2000
    Assignee: American Dye Source, Inc.
    Inventor: My T. Nguyen
  • Patent number: 6114490
    Abstract: A novel polymer comprising oligo-p-phenylene units and having formula (A.sub.k B).sub.n is disclosed, wherein A and B have the following chemical structure: ##STR1## Y are identical or different and are each (E)--CR.sup.9 .dbd.CR.sup.10 --, --C.dbd.C-- or --CHR.sup.11 --CHR.sup.12 ;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 are, independently of one another, identical or different in the individual structural elements and are each H, a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, or an aryl or aryloxy group, or Br, Cl, F, CN or alkyloxycarbonyl having from 2 to 23 carbon atoms;k is from 1 to 25,n is from 1 to 200.The polymer of the present invention may be used as an electroluminescence material.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: September 5, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Willi Kreuder, Dieter Neher, Marcus Remmers
  • Patent number: 6114492
    Abstract: A potassium catalyst is used in combination with a cobalt catalyst to increase the reaction rate and/or reduce the reaction temperature of a melt polymerization process for producing an anisotropic melt-phase forming polymer derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, aromatic hydroxycarboxylic acid, aromatic diol, at least a portion of which is resorcinol and at least one aromatic dicarboxylic acid, compared to a like process wherein either catalyst is used alone.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: September 5, 2000
    Assignee: Ticona LLC
    Inventors: H. Clay Linstid, III, Vincent J. Provino
  • Patent number: 6096859
    Abstract: A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 1, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph A. Akkara, David L. Kaplan, Madhu Ayyagari
  • Patent number: 6069223
    Abstract: A process for making a crystallizable aromatic polymer comprises polycondensing difunctional monomers in the presence of a base and adding to the reaction mixture a nucleating agent. The nucleating agent comprises a nucleophilic group and a group of formula --A--X, where X is a metal cation and A is an anion. It is selected to give an increase in the peak crystallization temperature of the nucleated polymer compared to the unnucleated polymer.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: May 30, 2000
    Assignee: Victrex Manufacturing Limited
    Inventors: John Jamieson Liggat, Catherine Jane Wilde, Philip Anthony Staniland
  • Patent number: 5998566
    Abstract: The improved phenol derivatives having a phenolic structure as part of the molecular backbone are produced by reacting condensed polycyclic aromatic hydrocarbons, either individually or in combination with unsaturated cyclic aliphatic hydrocarbons, with phenols in the presence of Friedel-Crafts catalysts and have softening points of no more than 150.degree. C., number average molecular weights of 250-800 and phenolic hydroxyl equivalents of 140-850 g/eq. These phenol derivatives are useful either as starting materials for the manufacture of heat-resistant thermosetting resins or as modifiers thereof. They can be produced by reacting the indicated components in the presence of Friedel-Crafts catalysts, typically a mixture of hydrogen fluoride and boron trifluoride, at temperature of 0-350.degree. C.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: December 7, 1999
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takashi Kojima, Takafumi Yoshimura
  • Patent number: 5977287
    Abstract: There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent (e.g. acetic anhydride), etherification agent (e.g. dichloromethane or quaternary organic amine such as N-(3-chloro-2-hydroxypropyl) trimethyl ammonium chloride) to form the corresponding ester, or ether, through said hydroxyl group, and (b) derivatized. The chemically modified tannin is derivatized by reaction with aldehyhde (e.g. formaldehyde), or aldehyde and at least one member selected from the group consisting of ammonia and organic amine containing at least one primary or secondary nitrogen (e.g. cyclohexyl amine); said derivatized tannin being water soluble or dispersable at a pH below 7 and water insoluble at a pH above 7.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: November 2, 1999
    Assignee: BetzDearborn Inc.
    Inventors: David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai
  • Patent number: 5910560
    Abstract: A thermoplastic resin composition comprising an aromatic polycarbonate resin and an aromatic polysulfone resin and having the specific melt viscosity ratio between the two resins in the composition. This composition is excellent in heat resistance and gives a molded article of especially high temperature of deflection under load.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: June 8, 1999
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Tohru Nagashima, Hiroshi Nakamura, Hideo Nomura, Mituo Maeda
  • Patent number: 5863465
    Abstract: Emulsion-polymerization of electrically conductive polyaniline salts is disclosed. The process comprises combining water, a water-solubilizing organic solvent, an organic acid that is soluble in the organic solvent, an aniline monomer, and a radical initiator. An organic phase forms which contains the polyaniline salt of the organic acid wherein the organic phase is separable from an aqueous phase. The polyaniline salt so formed is soluble in organic carrier solvents at a concentration of 25 w/w % or greater.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: January 26, 1999
    Assignee: Monsanto Company
    Inventor: Patrick J. Kinlen
  • Patent number: 5824414
    Abstract: Phenols are reacted with hydrogen peroxide in a solution comprising an organic solvent compatible with water, water, a peroxidase and a dispersing agent to obtain spherical polyphenol particles.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: October 20, 1998
    Assignees: Mitsui Chemicals, Inc., Shiro Kobayashi
    Inventors: Shiro Kobayashi, Hiroshi Uyama, Sunao Maeda, Shinichirou Tawaki
  • Patent number: 5824808
    Abstract: A cyclic phenol sulfide represented by the following formula (1) is described: ##STR1## wherein X represents a hydrogen atom, a hydrocarbon group, or an acyl group; Y.sub.1 represents a hydrogen atom, a hydrocarbon group, a halogenated hydrocarbon group, --COR.sup.1, --OR.sup.2, --COOR.sup.3, --CN, --CONH.sub.2, --NO.sub.2, --NR.sup.4 R.sup.5, a halogen atom, --SO.sub.4 R.sup.6, or --SO.sub.3 R.sup.7, in which R.sup.11, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 each represents a hydrogen atom or a hydrocarbon group; n is an integer of 3 or more; and m is an integer of 1 to 7, provided that the plural m's of the S.sub.m 's are the same or different; the plural X's are the same or different; and the plural Y.sub.1 's are the same or different. A process for producing the cyclic phenol sulfide is also described.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: October 20, 1998
    Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.
    Inventors: Takashi Hori, Hitoshi Kumagai, Mitsuharu Hasegawa, Yoko Sato, Hiroshi Munakata, Yoshihiro Sugawa
  • Patent number: 5804100
    Abstract: Deaggregated substituted and unsubstituted polyparaphenylenes, polyparaphenylevevinyles, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polypyrroles, polyselenophene, polyacetylenes formed from soluble precursors and combinations thereof and copolymers thereof and methods of fabrication are described. The deaggregated polymer molecules when subsequently doped show higher electrical conductivity. Agents such as lithium chloride, m-cresol and nonylphenol are used to deaggregate the polymer molecules. The deaggregating agents can be added prior to or during doping the molecules.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 8, 1998
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Bruce K. Furman
  • Patent number: 5792830
    Abstract: Described is a process for preparing polyaniline polymer which includes contacting aniline monomers with (a) hydrogen peroxide, (b) at least one acid, including hydrogen chloride, hydrogen bromide, or a mixture thereof, and (c) a catalytic amount of at least one metal-containing compound or complex, under reaction conditions sufficient to form a polymerization reaction product containing a polyaniline polymer. It has been discovered that the processes described herein provide means to prepare polyaniline having a relatively high conductivity at a high degree of aniline monomer conversion using hydrogen peroxide as an oxidant.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: August 11, 1998
    Assignee: The Dow Chemical Company
    Inventors: Stephen A. Noding, Susan J. Babinec, Carey L. Scortichini
  • Patent number: 5789496
    Abstract: A method for the removal, separation, and concentration of cesium cations from a source solution which may contain larger concentrations of other alkali metal ions comprises bringing the source solution into contact with a polymeric resin containing poly(hydroxyarylene) ligands. The poly(hydroxyarylene) ligand portion(s) of the polymeric resins has affinity for cesium, thereby removing cesium from the source solution. The source solutions from which the cesium has been removed may then be treated or disposed of as desired and the cesium cations are then removed from the polymeric resin through contact with a much smaller volume of a receiving solution in which these cesium cations are soluble and has greater affinity for such cations than does the poly(hydroxyarylene) ligand or protonates the ligand, thereby quantitatively stripping the completed cesium cations from the ligand and recovering them in concentrated form in said receiving solution.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: August 4, 1998
    Assignee: IBC Advanced Technologies, Inc.
    Inventors: Bryon J. Tarbet, Garren Maas, Krzysztof E. Krakowiak, Ronald L. Bruening
  • Patent number: 5760171
    Abstract: Polyphenylene ethers are decolorized by contact in the melt or in solution with a hydroxy compound containing either another hydroxy group or a double or aromatic bond in a specific location in the molecule. Illustrative decolorizing compounds are benzopinacol, benzoin and acetoin.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: June 2, 1998
    Assignee: General Electric Company
    Inventors: Dwain Montgomery White, Gary William Yeager
  • Patent number: 5760170
    Abstract: A polymer composition comprises (a) a stereospecific, preferably fermentation derived, polyester of molecular weight Mw over 100000 consisting of repeating units of formula --O--C.sub.m H.sub.n --CO-- in which n=2m and units with m=3 and m=4 with respectively a C.sub.1 and C.sub.2 side group on the carbon atom next to oxygen in the polymer chain are copolymerised together, m being 3 in 70-95 mol percent of such units; and (b) at least one alkyl phenol in which the alkyl group preferably contains at least one tertiary carbon atom adjacent to or within 4 carbon atoms of the phenol nucleus. The alkyl phenol may be hindered and may contain a C.sub.1-6 alkoxy group para to the phenolic hydroxy group. Suitable alkyl phenols include 2-tert-butyl-4-hydroxy-anisole and alpha- or delta- tocopherol and others usable as antioxidants in foods, oils and polymer systems.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: June 2, 1998
    Assignee: Monsanto Company
    Inventors: Timothy Hammond, John Michael Vivian Blanshard, Shuzo Fujita
  • Patent number: 5747175
    Abstract: Liquid-crystalline polymer blends comprising two or more cholesteric liquid-crystalline polymers or at least one nematic liquid-crystalline polymer and at least one cholesteric liquid-crystalline polymer.All hues can be produced specifically and in a reproducible manner by variation in the blend components and in the mixing ratio. The polymer blends are suitable as materials or as effect pigments.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: May 5, 1998
    Inventors: Erwin Dietz, Axel Schonfeld
  • 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: 5726321
    Abstract: Process for carrying out gas/liquid reactions at from (-50.degree.) to 300.degree. C. and from 0.1 to 100 bar by carrying out the reaction in the absence of a continuous gas phase, and, as a special case, a process for the batchwise reaction of acetylene in the liquid phase at from 0.degree. to 300.degree. C. and from 2 to 30 bar, in which acetylene is introduced a) in the absence of a continuous gas phase and b) under isobaric conditions to a degree of saturation of from 5 to 100%.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 10, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Bittins, Marc Heider, Martin Schmidt-Radde, Jochen Kellenbenz, Kurt Josef Wagner, Peter Zehner, Stefan Berg
  • Patent number: 5717053
    Abstract: There is provided a co-condensation product obtainable by subjecting a p-alkylphenol to reaction with formaldehyde in the presence of an alkali catalyst to prepare a resol type condensate, and subjecting the resulting resol type condensate to reaction with a m-substituted phenol such as resorcin in the presence of an acid catalyst, wherein the content of the m-substituted phenol is not higher than 4% by weight, and the content of a component having a molecular weight not higher than 1,000 excluding both the p-alkylphenol and the m-substituted phenolis at least 25% by weight based on the total weight of the co-condensation product. This co-condensation product is low in fuming and in hygroscopic properties, exhibits excellent adhesiveness in vulcanizing adhesion between rubber and a reinforcing material, and further provides a vulcanized rubber article of high hardness.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: February 10, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Inui, Hideo Nagasaki, Manji Sasaki, Kazuaki Yamamoto, Hironobu Iyama
  • Patent number: 5710237
    Abstract: Liquid crystalline polyesters made from hydroquinone, terephthalic acid, 2,6-naphthalene dicarboxylic acid and 4-hydroxybenzoic acid, and having a selected composition range, have melting points of about 350.degree. C. or less, good physical properties, and are readily manufactured. The polymers are useful as molding resins.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: January 20, 1998
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Marion Glen Waggoner, Michael Robert Samuels
  • Patent number: 5693740
    Abstract: An aromatic polyethersulphone incorporating sub-unit (1) where A is an electron withdrawing group, the designation "o,p" represents that the bond is at the ortho or para position to the A group, and X is selected from: OH; --O M where M is an organic or inorganic cation (other than hydrogen) and n is at least 1; --NR1R2 where R1 and R2 are the same or different and are selected from hydrogen and alkyl, aryl, aminoalkylene or ammonoalkylene groups; and --OR3 where R3 is an alkyl or aryl group; either as the only sub-units of the polymer or in combination with comonomer units.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 2, 1997
    Assignee: United Utilites PLC
    Inventors: Howard Matthew Colquhoun, David Frank Lewis
  • Patent number: 5693742
    Abstract: A method for making polyarylene ethers comprises the step of melt polymerizing phenolic monomers in the presence of oxygen and oxidative coupling catalysts without employing environmentally unfriendly solvents.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: December 2, 1997
    Assignee: General Electric Company
    Inventors: Dwain Montgomery White, Margaret Louise Blohm, David Winfield Woodruff, Sterling Bruce Brown
  • Patent number: 5659002
    Abstract: The invention is a process for preparing alkylated tannin Mannich polymers by reacting a tannin Mannich condensation polymer, prepared from a condensed tannin, and amine, and formaldehyde, with an alkylating agent at a pH between 5 and 14. Optionally, the alkylated tannin Mannich polymer may be reacted further with formaldehyde to increase its viscosity.The invention further comprises a method of removing color form waste water utilizing the alkylated tannin Mannich polymer produced by the above process.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: August 19, 1997
    Assignee: Nalco Chemical Company
    Inventors: Peter E. Reed, Martha R. Finck
  • Patent number: 5659006
    Abstract: A method for making polyarylene ethers comprising the step of melt polymerizing 2,6-disubstituted-4-alkylphenols in the presence of an oxidative coupling catalyst and in the absence of environmentally unfriendly solvents.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 19, 1997
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 5656702
    Abstract: A method for the removal separation, and concentration of cesium cations from a source solution which may contain larger concentrations of other alkali metal ions comprises bringing the source solution into contact with a polymeric resin containing poly(hydroxyarylene) ligands. The poly(hydroxyarylene) ligand portion(s) of the polymeric resins has affinity for cesium, thereby removing cesium from the source solution. The source solutions from which the cesium has been removed may then be treated or disposed of as desired and the cesium cations are then removed from the polymeric resin through contact with a much smaller volume of a receiving solution in which these cesium cations are soluble and has greater affinity for such cations than does the poly(hydroxyarylene) ligand or protonates the ligand, thereby quantitatively stripping the complexed cesium cations from the ligand and recovering them in concentrated form in said receiving solution.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: August 12, 1997
    Assignee: IBC Advanced Technologies, Inc.
    Inventors: Bryon J. Tarbet, Garren Maas, Krzysztof E. Krakowiak, Ronald L. Bruening
  • Patent number: 5648449
    Abstract: A copolyester consisting essentially of ethylene terephthalate units and further comprising 0.01 to 1 mole % based on the sum of the moles of total diol units and the moles of triol units of a triol unit represented by the following formula (I) and/or a triol unit represented by the following formula (II). ##STR1## wherein A is a group represented by formula --CH.sub.2 CH.sub.2 -- or formula --CH(CH.sub.3)CH.sub.2 --, B is a divalent hydrocarbon group, --CO--, --SO.sub.2 --, --0-- or a direct bond (-), and p, q, r, s, t and u are each an integer of 1 to 8. A process for producing the same and molded articles (in particular extrusion blow molded articles) therefrom. The copolyesters of the present invention are applicable to melt moldings accompanying melt extrusion, in particular extrusion blow molding, where parisons therefrom have good draw-down tendency and blow moldability.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: July 15, 1997
    Assignee: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Tetsuya Hara, Akira Kageyu, Tsugunori Kashimura
  • Patent number: 5629405
    Abstract: A method for making polyarylene ethers is described and the method comprises the step of polymerizing hydroxyaromatic monomers or oligomers prepared therefrom in the presence of pyridine catalysts.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: May 13, 1997
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 5618469
    Abstract: The invention provides a solution comprising a proton-doped polyaniline in combination with a protonic acid which is a solvent thereof, and an article coated with an optically-transparent, electrically-conductive layer, formed from the solution, and comprising a proton-doped poiyaniline. The invention also provides a method for preparing a processable solution of a proton-doped polyaniline for use in the preparation of electrically-conductive and optically-transparent coatings, comprising oxidatively polymerizing aniline in the presence of a second protonic acid to yield a solid polyaniline; and dissolving the solid polyaniline in the first protonic acid.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 8, 1997
    Assignee: Al-Coat Ltd.
    Inventors: Eli Harlev, Tamilla Gulakhmedova, Ilya M. Rubinovich
  • Patent number: 5612442
    Abstract: A bis(methoxymethyl)biphenyl having the formula (I): ##STR1## which is capable of producing by a dehalogenating coupling of a halogenated methoxymethylbenzene and which is useful as an intermediate for a phenol novolak condensate, an epoxy resin curing agent, an epoxy resin composition, or a phenol resin composition.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: March 18, 1997
    Assignees: Ube Industries, Ltd., Meiwa Plastic Industries, Ltd.
    Inventors: Katuhiko Okazaki, Mikito Kashima, Yumiki Noda, Hiroshi Jibiki, Takashi Honma
  • Patent number: 5587007
    Abstract: The specification describes a method for preparing a phenol-modified dicyclopentadiene resin. The method comprises reacting (a) dicyclopentadiene, (b) a phenol selected from the group consisting of an alkyl phenol having the formula CH.sub.3 C.sub.n H.sub.2n C.sub.6 H.sub.4 OH, where n is from 1 to 9, and a bisphenol having the formula HOC.sub.6 H.sub.4 (CR.sub.2).sub.x C.sub.6 H.sub.4 OH, where R is independently hydrogen or a C.sub.1 -C.sub.6 alkyl group and x is from 1 to 4, or mixtures thereof; (c) a fatty acid or a derivative thereof selected from the group consisting of tall oil, a tall oil derivative, dimer fatty acid, linseed oil and mixtures thereof; and (d) an unsaturated organic diacid or an anhydride thereof, at a temperature and autogenous pressure sufficient to produce a phenol-modified dicyclopentadiene resin. The resin product exhibits improved compatibility with ink vehicles and formulations, particularly ARLO or alkyd modified inks.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: December 24, 1996
    Assignee: Arizona Chemical Company
    Inventor: Daniel R. Curvin
  • Patent number: 5571887
    Abstract: A new thermoplastic homopolymer of o-cresol which is a poly(2-methylphenylene oxide) having a high molecular weight distribution is described. The polymer is prepared using a 2 and/or 6 substituted pyridine catalyst to the molecular weight distribution. The homopolymer can be blended with other thermoplastic polymers. The homopolymer is rapidly biodegraded, particularly in soil containing soil microorganisms.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: November 5, 1996
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Li-Xia Li, Patrick J. Oriel, Eric A. Grulke
  • Patent number: 5567356
    Abstract: Electrically-conductive polyaniline salts that are soluble in xylene and an emulsion-polymerization process for producing the salts is disclosed. The process comprises the steps of combining water, a water soluble organic solvent, a hydrophobic organic acid, an aniline monomer, and a radical initiator and allowing the mixture to form the electrically-conductive polyaniline salt of the acid.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: October 22, 1996
    Assignee: Monsanto Company
    Inventor: Patrick J. Kinlen
  • Patent number: 5563300
    Abstract: The present invention provides a unique and novel way of producing carbinols such as 4-hydroxyphenylmethylcarbinol (HPMC). In this new process, a ketone such as 4-hydroxyacetophenone (4-HAP) is heated under suitable hydrogenation conditions of temperature and pressure in the presence of a suitable catalyst and a basic material, and for a sufficient period of time to form HPMC.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: October 8, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: James R. Sounik, Graham N. Mott, Charles B. Hilton, Mohammad Aslam
  • Patent number: 5554719
    Abstract: A new polyhydroxystyrene having a novolak type structure which is prepared by the process which comprises the step of polymerizing a mixture of carboxylic acid and at least one substituted phenyl carbinol whose formula is: ##STR1## wherein (a) R.sub.1 is selected from the group consisting of H, alkyl C.sub.1 -C.sub.20, substituted and unsubstituted phenyl, and C(O)R.sub.8 (where R.sub.8 is alkyl C.sub.1 -C.sub.20); (b) R.sub.2 is selected from the group consisting of H and alkyl C.sub.1 -C.sub.20 ; and (c) R.sub.3 -R.sub.7 are each independently selected from the group consisting of H, alkyl C.sub.1 -C.sub.20, OR.sub.9 (where R.sub.9 is H, alkyl C.sub.1 -C.sub.20, esters thereof, or substituted and unsubstituted phenyl), halogen, BZT, nitro, or amino, with the proviso that at least one of R.sub.3 -R.sub.7 is OR.sub.9, in the presence of a suitable catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form said polyhydroxystyrene.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: September 10, 1996
    Assignee: Hoechst Celanese Corporation
    Inventor: James R. Sounik