Metal Atom Has Atomic Number Of 57-71, Or 89 And Higher Patents (Class 528/278)
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Publication number: 20120271030Abstract: A catalyst composition comprises the reaction product of an alkoxide or condensed alkoxide of a metal M, selected from titanium, zirconium, hafnium, aluminium, or a lanthanide, an alcohol containing at least two hydroxyl groups, a 2-hydroxy carboxylic acid and a base, wherein the molar ratio of base to 2-hydroxy carboxylic acid is in the range 0.01-0.79:1. The composition is useful as a catalyst for esterification reactions, especially for the production of polyesters such as polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate.Type: ApplicationFiled: July 9, 2012Publication date: October 25, 2012Applicant: DORF KETAL CHEMICALS (INDIA) PVT LTDInventors: Charles Mark LINDALL, Neville SLACK, Martin Graham PARTRIDGE
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Patent number: 8110609Abstract: The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polytrimethylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof; and contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component.Type: GrantFiled: August 9, 2010Date of Patent: February 7, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Michael Determan, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah
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Patent number: 7527809Abstract: A structure containing polyhydroxyalkanoate and a magnetic substance includes an external phase part containing polyhydroxyalkanoate and an internal phase part contained in the external phase part, at least one of the external phase part and the internal phase part containing a magnetic substance. Accordingly, provided is a microcapsule, which can be suitably used for formation of an active ingredient of a sustained release pharmaceutical preparation or an ultrasonic contrast agent.Type: GrantFiled: April 30, 2004Date of Patent: May 5, 2009Assignee: Canon Kabushiki KaishaInventors: Tetsuya Yano, Tsuyoshi Nomoto, Shinya Kozaki, Takeshi Imamura, Tsutomu Honma
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Publication number: 20080246192Abstract: A polyester composition comprising a reaction product of: 65-94.5 weight percent of a polyester having a weight average molecular weight of greater than or equal to 70,000 g/mol, of the formula wherein each T is a C6-10 aromatic group derived from a dicarboxylic acid and D is a C2-4 aliphatic group derived from a dihydroxy compound; 5-30 weight percent of an impact modifier copolymer comprising units derived from a C2-20 olefin and units derived from a glycidyl(meth)acrylate; and 0.5-5 weight percent of a particulate fluoropolymer encapsulated by a copolymer having a Tg of greater 10° C. and comprising units derived from a monovinyl aromatic monomer and units derived from a C3-6 monovinylic monomer; and wherein the composition has less than 70 weight percent of a polyester derived from a dicarboxylic acid and an aliphatic diol selected from the group consisting of 1,3-propylene glycol, neopentyl glycol, 1,5-pentanediol, 1,6-hexanediol, decamethylene glycol, cyclohexanediol, and 1,4-cyclohexanedimethanol.Type: ApplicationFiled: April 6, 2007Publication date: October 9, 2008Inventors: Sung Dug Kim, Subir Debnath
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Patent number: 7279234Abstract: Disclosed are methods of using a transparent, luminescent polymer for transparent marking and/or labeling for identity verification purposes. Also disclosed are sheets, films, markers, labels and taggants comprising transparent, luminescent polymers. Also disclosed are articles labeled with a transparent, luminescent polymer. This invention particularly relates to use of transparent, luminescent polymer compositions comprising ethylene (meth)acrylic acid copolymers and rare earth ions and transparent, luminescent polymer compositions comprising methyl (meth)acrylate/(meth)acrylic acid copolymers, fatty acids and rare earth ions for these purposes.Type: GrantFiled: August 18, 2004Date of Patent: October 9, 2007Assignee: E.I. du Pont de Nemours and CompanyInventor: David M. Dean
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Patent number: 7201859Abstract: The present invention discloses a hole transport layer of an organic EL display, comprising: a material including one of a PEDOT which is a mixture of a poly (3,4)-ethylenedioxythiophene and a polystyrenesulfonate, a PANI which is a mixture of a polyaniline and a polystyrenesulfonate, and an aromatic amine derivative; and an organic compound derivative having the general structure, R1R2MR3R4, where “M” denotes one metal selected from a group consisting of Ti, Pt and one metal among elements belonging to groups 3A and 4A of periods 3 to 5.Type: GrantFiled: June 18, 2002Date of Patent: April 10, 2007Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Yeob Lee, Young-Sook Choi, Michael Redecker, Kerstin Nolte
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Patent number: 7052765Abstract: A method for manufacturing antibacterial polyester master batches and fibers containing nano-silver particles, the method includes the acts of: mixing a reducing agent, glycol and a silver precursor together to compose a first mixture; esterifying terephthalic acid and glycol to compose a second mixture containing block polymers; mixing the first and second mixtures to make the block polymers further polymerize to achieve a polyester liquid containing nano-silver particles; optionally, cooling the polyester liquid to solidify; and selectively, granulating the solidified polyester to obtain a polyester master batches or melting spinning the polyester to obtain polyester fibers. By reducing the silver ions during polymerizing reaction, the reduced silver particles are separated by polymerized polyester molecules so that the silver particles are evenly distributed inside the polyester master batches without coagulation.Type: GrantFiled: March 9, 2005Date of Patent: May 30, 2006Assignee: Taiwan Textile Research InstituteInventors: Jia-Peng Lin, Yu-Chi Tseng, Huan-Sheng Chien
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Patent number: 6780962Abstract: Described are methacrylate or acrylate binders e.g. obtainable by the steps of (i) generating OH-precursors from at least one aromatic polyester, and (ii) reacting said OH-precursors of step (i) with methacrylic acid and/or acrylic acid to form a respective ester, whereby step (i) comprises reacting an aromatic polyester, or a mixture of aromatic polyesters with at least one polyol and/or at least one aminopolyol to generate hydroxy terminated oligomers. Optionally, a modified product can be obtained by performing a further reaction in step (i), namely by reacting said hydroxy terminated oligomer with at least one polycarboxylic acid and/or at least one polycarboxylic anhydride to generate said hydroxy terminated binder precursor oligomer.Type: GrantFiled: July 31, 2001Date of Patent: August 24, 2004Assignee: Sika Schweiz AGInventors: Dally Moya, Ria De Cooman, Werner Meyer
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Patent number: 6657044Abstract: An improved process for the polymerization of polytrimethylene terephthalate by esterification of terephthalic acid or dimethylterephthalate with 1,3-propanediol (PDO), precondensation of the esterification product to produce a precondensation product, and polycondensation of the precondensation product to produce polytrimethylene terephthalate wherein excess PDO is removed from the esterification and/or polycondensation stages and PDO vapor is separated from the high boiling fraction (solid byproduct). The improvement comprises: (a) heating the solid byproduct in the presence of about 5 ppm to about 5000 ppm, based on metal, of a metal catalyst selected from the group consisting of one or more 3rd, 4th, or 5th row metal compounds from Groups 3-12 and Groups 14-15 of the Periodic Table (IUPAC 1989) at a temperature of from about 100° C. to about 240° C.Type: GrantFiled: October 18, 2002Date of Patent: December 2, 2003Assignee: Shell Oil CompanyInventors: Donald Ross Kelsey, Kathleen Suzanne Kiibler, Wen Tzung Tang
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Patent number: 6657036Abstract: The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one hetergeneous catalyst. The invention also relates to polyaddition resins which are prepared by polyaddition in the presence of at least one heterogeneous catalyst. The invention further relates to the use of said polycondensation resins and polyaddition resins for the preparation of moulded parts, adhesives and coating materials.Type: GrantFiled: October 4, 2001Date of Patent: December 2, 2003Assignee: BASF Coatings AGInventors: Werner-Alfons Jung, Heinz-Peter Rink, Eberhard Fuchs, Wolfgang Straehle
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Patent number: 6482915Abstract: 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: GrantFiled: July 19, 2001Date of Patent: November 19, 2002Assignee: Polyplastics Co., Ltd.Inventor: Toshiaki Yokota
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Publication number: 20020002218Abstract: Polymers for cement dispersing admixtures, which show different performing properties in concrete are described.Type: ApplicationFiled: March 29, 2001Publication date: January 3, 2002Inventors: Ulf Velten, Ueli Sulser, Jurg Widmer, Irene Schober, Theodor A. Burge
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Patent number: 5880224Abstract: A process for producing an aliphatic polyester carbonate which comprises reacting (1) an aliphatic dicarboxylic acid compound containing succinic acid as a main component, (2) an aliphatic dihydroxy compound containing 1,4-butanediol as a main component, and (3) (a) a polyhydric alcohol having 3 or more hydroxyl groups in a molecule, (b) a polybasic carboxylic acid compound having 3 or more carboxyl groups in a molecule, or (c) a polybasic carboxylic acid having one or more hydroxyl groups in a molecule to obtain an aliphatic polyester oligomer and reacting the obtained aliphatic polyester oligomer and a carbonate compound, wherein the aliphatic polyester carbonate has a melt tension of 1.5 g or more at 190.degree. C.Type: GrantFiled: July 28, 1997Date of Patent: March 9, 1999Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Mitsuo Miura, Kyohei Takakuwa, Takayasu Fujimori, Maki Ito
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Patent number: 5670607Abstract: This invention relates to compositions of miscible electrically conductive polyaniline and to conductive articles formed from such compositions. Specifically, the invention relates to polyaniline dioctylsulfosuccinate which is miscible with some common organic solvents. UV-Visible spectra of dilute solutions of this polymer show a linear dependence of absorbance on concentration. Solution with high concentrations of polymer, >50 w %, can be prepared and uniform films can be cast from these solutions without any loss in electrical conductivity. The solutions and films are stable.Type: GrantFiled: June 7, 1996Date of Patent: September 23, 1997Assignee: Gumbs Associates, Inc.Inventor: ChenChang Chen
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Patent number: 5623047Abstract: A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about 10 to about 1,000 ppm; (b) a metal salt catalyst of at least one of cobalt, magnesium, zinc, manganese, calcium, and lead, present in a range from about 10 to about 500 ppm; and (c) an alkali metal acetate, present in a range from about 10 to about 500 ppm; all amounts are based on the metallic elements relative to the theoretical yield of the poly(ethylene terephthalate), by weight, to be made from the terephthalic acid. The catalyst composition was found to have increased the reaction rate in the production of poly(ethylene terephthalate), as well as improved the color of the produced product, by reducing the degree of yellowness in the final poly(ethylene terephthalate) product. Attenuation of the yellowish color indicates a reduction in the amount of undesired side reaction product.Type: GrantFiled: March 28, 1995Date of Patent: April 22, 1997Assignee: Industrial Technology Research InstituteInventors: Wu-Bin Yuo, Jong-Wu Chen, Yu-Shan Chao
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Patent number: 5614008Abstract: The present invention provides inks which contain a near infrared fluorophoric compound incorporated into a water-dissipatible polyester backbone. The inks of the present invention are preferably colorless or "invisible" but could be made slightly colored if desirable. Specifically, the inks of the present invention comprise:A. between about 1 and 10 weight percent of at least one water-dissipatable polyester having from about 0.1 ppm by weight to about 10% by weight of a thermally stable near infrared fluorophoric compound copolymerized therein;B. between about 5 and 75 weight percent of at least aliphatic humectant;C. between about 0 and 15 weight percent of at least one lower aliphatic alcohol of no more than 3 carbon atoms;D. water and optionally up to about 2 weight percent of one or more additives;wherein the weight percentages of components A-D equal 100%.Type: GrantFiled: October 23, 1995Date of Patent: March 25, 1997Inventors: Nelson Z. Escano, James J. Krutak, Sr.
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Patent number: 5608032Abstract: A catalyst composition for use in a polycondensation reaction for making poly(ethylene terephthalate) from terephthalic acid comprising: (a) an antimony salt catalyst present in a range from about 10 to about 1,000 ppm; (b) a metal salt catalyst of at least one of cobalt, magnesium, zinc, manganese, calcium, and lead, present in a range from about 10 to about 500 ppm; and (c) a phosphorus salt co-catalyst selected from the group consisting of alkali metal phosphates, alkali metal phosphites, alkali metal hypophosphites and alkali metal polyphosphates, present in a range from about 10 to about 500 ppm; all amounts are based on the metallic or phosphorus element relative to the theoretical yield of the poly(ethylene terephthalate), by weight, to be made from the terephthalic acid.Type: GrantFiled: March 28, 1995Date of Patent: March 4, 1997Assignee: Industrial Technology Research InstituteInventors: Wu-Bin Yuo, Jong-Wu Chen, Yu-Shan Chao
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Patent number: 5423432Abstract: Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for marking articles for identification/authentication purposes. Also provided is a method for invisibly marking such articles and a method for detecting and sorting articles by utilizing the near infrared flourophoric ink or coating compositions.Type: GrantFiled: May 5, 1994Date of Patent: June 13, 1995Assignee: Eastman Chemical CompanyInventors: James J. Krutak, Michael R. Cushman, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
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Patent number: 5407657Abstract: Novel MRI contrast agents that comprise one or more metal-ion chelates in juxtaposition with one or more free-radical nitroxide compounds in a polymeric or oligomeric molecule. Both the chelate units and the free radical units may, independently, be inside the main chain of the polymer or in a side chain of the linkage portion of the polymer. The number of combined units of chelates and free radicals in the polymer or oligomer is at least two.Type: GrantFiled: February 28, 1994Date of Patent: April 18, 1995Inventors: Evan C. Unger, GuanLi Wu
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Patent number: 5340909Abstract: A process for producing poly(1,3-propylene terephthalate) from the reaction of either terephthalic acid or a lower dialkyl ester of terephthalic acid and 1,3-propanediol and polymerization of the monomer produced therefrom using a novel catalyst system. The novel catalyst composition includes employing an effective catalytic amount tin in the polycondensation reaction. Using the catalyst system and Hostaperm.RTM. pigments allows for the production of poly(1,3-propylene terephthalate) having yellowness of less than 4 and an IV of at least 0.80 dl/g.Type: GrantFiled: December 18, 1991Date of Patent: August 23, 1994Assignee: Hoechst Celanese CorporationInventors: Marvin L. Doerr, Joseph J. Hammer, J. R. Dees
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Patent number: 5292855Abstract: Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for marking articles for identification/authentication purposes. Also provided is a method for invisibly marking such articles and a method for detecting and sorting articles by utilizing the near infrared flourophoric ink or coating compositions.Type: GrantFiled: February 18, 1993Date of Patent: March 8, 1994Assignee: Eastman Kodak CompanyInventors: James J. Krutak, Michael R. Cushman, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
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Patent number: 5288841Abstract: An improved process for the ring-opening polymerization of ring-opening polymerizable cyclic compounds using a fluidized bed.Type: GrantFiled: November 30, 1992Date of Patent: February 22, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Howard E. Bellis, Donald C. Paul
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Patent number: 5008366Abstract: A process is disclosed for preparing adhesives from polyethylene terephthalate which comprises reacting a trimellitic acid polyester ether with polyethylene terephthalate to prepare a nonlinear copolymer with crosslinking characteristics suitable for use as an adhesive either as a hot-melt adhesive or as a pressure-sensitive adhesive.Type: GrantFiled: April 25, 1990Date of Patent: April 16, 1991Assignee: Amoco CorporationInventor: Oscar M. Bathe
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Patent number: 4921929Abstract: Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free.Type: GrantFiled: March 28, 1989Date of Patent: May 1, 1990Assignee: The Goodyear Tire & Rubber CompanyInventors: John R. Wilson, Marian M. Rousek, Fred L. Massey
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Patent number: 4501878Abstract: Disclosed is an improved process for the preparation of high molecular weight linear polyesters. In the preparation of polyesters by formation of a bis-dihydroxy ester prepolymer by transesterifying dimethyl terephthalate with a glycol in the presence of a catalyst followed by polycondensing the prepolymer in the presence of certain phosphorous-containing compounds and a transition metal-containing catalyst which remains active in the presence of said phosphorous compound, an improved rate of polycondensation is achieved by introducing the phosphorous compounds after first polycondensing the prepolymer to a low molecular weight linear polyester having an average degree of polymerization of about 2 to about 10. The improved process further requires that the catalyst employed in the formation of the prepolymer be substantially inactive in the presence of said phosphorous compounds.Type: GrantFiled: January 30, 1984Date of Patent: February 26, 1985Assignee: Eastman Kodak CompanyInventor: L. Jane Adams