Polycarbamic Patents (Class 560/158)
  • Patent number: 6586466
    Abstract: The present invention provides compounds which inhibit proteases, including cathepsin K, pharmaceutical compositions of such compounds, and methods for treating diseases of excessive bone loss or cartilage or matrix degradation, including osteoporosis; gingival disease including gingivitis and periodontitis; arthritis, more specifically, osteoarthritis and rheumatoid arthritis; Paget's disease; hypercalcemia of malignancy; and metabolic bone disease, comprising inhibiting said bone loss or excessive cartilage or matrix degradation by administering to a patient in need thereof a compound of the present invention.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: July 1, 2003
    Assignee: SmithKline Beecham Corporation
    Inventor: Dennis Shinji Yamashita
  • Patent number: 6583309
    Abstract: The present invention relates to novel carbamates, ureas, and pharmaceutically acceptable salts thereof, compositions comprising the carbamate, urea, or a pharmaceutically acceptable salt thereof, and methods for treating or preventing cancer, inflammation, or a viral infection comprising administering to a patient in need of such treatment or prevention a therapeutically effective amount of the carbamate, urea, or pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: June 24, 2003
    Assignee: University of Medicine and Dentistry of New Jersey
    Inventors: Tariq M Rana, Seongwoo Hwang, Natarajan Tamilarasu
  • Patent number: 6569411
    Abstract: Serine carbonates of formula I are precursors for organoleptic compounds, masking agents and antimicrobial agents. Further they are alternative substrates for malodor producing enzymes. The symbols in formula I are defined in claim 1.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: May 27, 2003
    Assignee: The Gillette Company
    Inventors: Georg Frater, Denise Anderson, Frank Kumli, Jens Wittenberg, Virginia Streusand Goldman
  • Patent number: 6569352
    Abstract: Disclosed are polyester-ether polyols and their use in urethane prepolymers, urethane foams and non-foam urethane coatings, adhesives, sealants and/or elastomers. Methods for producing such polyester-ether polyols are disclosed, along with methods for producing urethane prepolymers. The polyester-ether polyols of the instant invention are preferably the reaction product of phthalic anhydride, diethylene glycol, and propylene oxide. These polyester-ether polyols are useful as either the primary polyol in urethane compositions or in combination with conventional auxiliary polyester- and/or polyether-based polyols. The polyester-ether polyols impart greatly improved solubility and compatibility to mixtures of either polyether and/or polyester polyols. The polyester-ether polyols of the instant invention are desirably of lower viscosity than their precursor intermediate polyester polyols and are generally soluble in either polyester- and/or polyether-based polyols.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: May 27, 2003
    Assignee: Stepan Company
    Inventors: Douglas K. Hillshafer, George Magnus
  • Patent number: 6566506
    Abstract: Branched, substantially non-antigenic polymers are disclosed. Conjugates prepared with the polymers and biologically active molecules such as proteins and peptides demonstrate extended circulating life in vivo. Substantially fewer sites on the biologically active material are used as attachment sites. Methods of forming the polymer, conjugating the polymers with biologically active moieties and methods of using the conjugates are also disclosed.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: May 20, 2003
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Anthony J. Martinez
  • Patent number: 6562842
    Abstract: The present invention provides compounds which inhibit proteases, including cathepsin K, pharmaceutical compositions of such compounds, and methods for treating diseases of excessive bone loss or cartilage or matrix degradation, including osteoporosis; gingival disease including gingivitis and periodontitis; arthritis, more specifically, osteoarthritis and rheumatoid arthritis; Paget's disease; hypercalcemia of malignancy; and metabolic bone disease, comprising inhibiting said bone loss or excessive cartilage or matrix degradation by administering to a patient in need thereof a compound of the present invention.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: May 13, 2003
    Assignee: SmithKline Beecham Corporation
    Inventor: Dennis Shinji Yamashita
  • Patent number: 6559260
    Abstract: The present invention is for a new class of allyl urethane resin which can be cured with peroxide at high temperature alone or in combination with some accelerators. These allyl urethane resins can be sued alone or in combination with other free radically polymerizable materials such as allyl monomers and ligomers or (meth)acrylate monomers and oligomers. These new allyl urethane resins contain at least two allyl functional groups.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 6, 2003
    Assignee: Sartomer Technology Company, Inc.
    Inventors: Mingxin Fan, Gary W. Ceska, James Horgan
  • Publication number: 20030083519
    Abstract: Compounds which inhibit tumor growth and angiogenesis, of general formula (II) are provided. These compounds include glycyl lysine derivatives bound to a central aromatic linking core.
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Dale L. Boger, David A. Cheresh
  • Publication number: 20030078450
    Abstract: The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from a five-membered N-heterocycles and the N-heterocycle comprises at least one N-H function in the five-membered ring, to the products produced in this way and to polymers prepared from these products.
    Type: Application
    Filed: May 13, 2002
    Publication date: April 24, 2003
    Inventors: Jurgen Kocher, Frank Richter, Hans-Josef Laas, Matthias Wintermantel
  • Publication number: 20030065213
    Abstract: The present invention relates to a dimeric urethane compounds derived from monohydric alcohols, generally fatty alcohols, and a diisocyanate according to the following reaction scheme: 1
    Type: Application
    Filed: April 15, 2002
    Publication date: April 3, 2003
    Inventor: Albert Zofchak
  • Patent number: 6538024
    Abstract: The present invention relates to novel felbamate derivatives and their use to treat neurological diseases such as epilepsy and to treat tissue damage resulting form ischemic events. The felbamate derivatives are modified to prevent the formation of metabolites that are believed responsible for the toxicity associated with felbamate therapy.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: March 25, 2003
    Assignee: University of Virginia Patent Foundation
    Inventors: Timothy L. MacDonald, Thomas A. Miller, Charles D. Thompson, Christine M. Dieckhaus
  • Patent number: 6538094
    Abstract: The invention provides a process for preparing an allophanate-containing compound in the presence of a metal catalyst and a tertiary amine. In a preferred process, the tertiary amine compound also has a hydroxyl group. The hydroxyl group can react with the isocyanate functionality. Also disclosed is a process in which an allophanate-containing compound is prepared with copper acetate monohydrate as a catalyst. The allophanate-containing compound is used as a curing agent in coating compositions, particularly electrocoat coating compositions. The coating compositions are used to coat articles.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: March 25, 2003
    Assignee: BASF Corporation
    Inventor: Charles L. Tazzia
  • Publication number: 20030055214
    Abstract: Trisubstituted N-protected guanidines and methods for use as guanidinylating reagents to yield N-protected guanidine derivatives.
    Type: Application
    Filed: April 30, 2002
    Publication date: March 20, 2003
    Applicant: The Regents of The University of California
    Inventors: Murray Goodman, Konrad Feichtinger, Todd T. Romoff
  • Patent number: 6525161
    Abstract: A powder coating composition comprising a powdered solid ethylenically unsaturated material having a melting point from 60° to 120° C. obtained by reacting a polyisocyanate with an at least stochiometric amount of an alcoholic component comprising: at least a monovalent alcohol, a part of which bears an ethylenic unsaturation derived from acrylic acid or methacrylic acid, and optionally at least a monomeric polyol. This composition is useful for coating substrates.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: February 25, 2003
    Assignee: Cray Valley Iberica
    Inventor: Stephen Anthony Hall
  • Publication number: 20030032623
    Abstract: A purpose of the present invention is to provide TNF-&agr; production inhibitors being useful as therapeutic agents for autoimmune diseases such as rheumatoid arthritis.
    Type: Application
    Filed: June 21, 2002
    Publication date: February 13, 2003
    Inventors: Masakazu Ban, Hiroshi Suhara, Masato Horiuchi, Noriyoshi Yamamoto, Hiroshi Enomoto
  • Publication number: 20030026997
    Abstract: Fluorochemical urethane compositions comprising one or more compounds or oligomers having at least on fluorine-containing repeatable unit and at least one fluorine-containing terminal group are described. The compositions are useful as coatings or incorporated as melt additives. The fluorochemical compositions impart oil and water repellency to the substrate. In other aspects, this invention relates to processes for imparting oil and water repellency characteristics to substrates and articles.
    Type: Application
    Filed: March 9, 2001
    Publication date: February 6, 2003
    Inventors: Zai-Ming Qiu, John C. Clark, Wayne W. Fan
  • Patent number: 6515164
    Abstract: A low-monomer PU prepolymer containing free NCO groups which is obtained from polyhydric alcohols and diisocyanates differing in their reactivity and which is distinguished by the ratio of the NCO groups of the partly slower-reacting diisocyanate to the NCO groups of the faster-reacting diisocyanate. It is greater than 6:1. Nevertheless the prepolymer according to the invention cures more quickly than a known prepolymer predominantly containing fast-reacting NCO groups. In a preferred embodiment, TDI is used as the partly slower-reacting diisocyanate while MDI is used as the faster-reacting diisocyanate. The prepolymer is produced in two stages. The prepolymer according to the invention is suitable for bonding plastic articles, metals and paper, especially films. The accelerated absence of migration is particularly noticeable in this regard.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: February 4, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Gerd Bolte, Guenter Henke, Markus Kruedenscheidt, Astrid Omoruyi
  • Patent number: 6515177
    Abstract: A method of forming a methylol urea prepolymer and a particle coated in with the prepolymer. The method involves providing a source of methylol urea and a source of aldehyde and reacting the urea and the aldehyde in the presence of an excess of urea to form the methylol urea prepolymer. The coated particle is preferably a controlled-release fertilizer particle. The particle is a substrate coated with a substantially uniform coating comprising a total nitrogen content ranging from about 39N to about 42N. The coating includes a low molecular weight methylene urea compounds.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: February 4, 2003
    Assignee: The Homestead Corporation
    Inventor: James M. O'Donnell, Sr.
  • Patent number: 6515019
    Abstract: Methods are disclosed for prophylactically and chronically preventing symptomatic depression, neuronal cell injury and cell death in systemic and neurological conditions, populations with cerebrovascular risk factors, and invasive vascular procedures, employing a glycine-site antagonist at the NMDA (N-methyl-D-aspartate) complex e.g., 2-phenyl-1,3-propanediol dicarbamate (felbamate).
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: February 4, 2003
    Inventor: Walter E. Kozachuk
  • Publication number: 20030023017
    Abstract: The invention relates to positional isomer diethyloctandioldicarbamates and diethyloctandioldiallophanates, to a method for the production thereof and to the use thereof as synthetic building blocks and constituents of adhesives, luting compounds and coating materials.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 30, 2003
    Inventors: Heinz-Peter Rink, Jochem Henkelmann, Werner-Alfons Jung, Paul J Harris, Swaminathan Ramesh
  • Publication number: 20030018190
    Abstract: This invention pertains generally to valency molecules, such as valency platform molecules which act as scaffolds to which one or more molecules may be covalently tethered to form a conjugate. More particularly, the present invention pertains to valency platform molecules which comprise a carbamate linkage (i.e., —O—C(═O)—N<). In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae I, II, or III, shown in FIG. 1. In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae IV, V, or VI, shown in FIG. 8. The present invention also pertains to methods of preparing such valency platform molecules, conjugates comprising such valency platform molecules, and methods of preparing such conjugates.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 23, 2003
    Inventor: David S. Jones
  • Patent number: 6509433
    Abstract: The present invention relates to blocked fluorine-containing polyisocyanates which have a fluorine content, calculated as F=19, of 1.0 to 20.0 wt. %, preferably 4.0 to 10.0 wt. %, and are suitable for preparing stoving coatings having a water- and soil-repellent surface, wherein the fluorine-containing polyisocyanates are based on the reaction product of aliphatic polyisocyanates or polyisocyanate mixtures having an NCO content of 10 to 25 wt. % and a functionality of at least 2.5 with monofunctional isocyanate blocking agents and a fluorinated monoalcohols wherein i) 75 to 95 equivalent-% of the isocyanate groups are reacted with isocyanate blocking agents, ii) 5 to 25 equivalent-% of the isocyanate groups are reacted with fluorinated monoalcohols and iii) the equivalents of i) and ii) add up to 100%.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: January 21, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eberhard Koenig, Beate Baumbach, Christian Füssel, Juan Gonzalez-Blanco
  • Patent number: 6506899
    Abstract: Pigment dispersants prepared by reacting an isocyanate oligomer having an average functionality of at least three with a polyester or polyacrylate, a poly(ethylene glycol)alkyl ether, and a diamine having a primary amine and a tertiary amine have excellent stabilizing properties and offer a wide formulation latitude with a variety of solvent systems, including polar solvents and water, and are particularly useful as pigment dispersants for paints and coating applications.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: January 14, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: John A. Simms
  • Patent number: 6495680
    Abstract: Helical oligomer and polymer compositions that form nanotubes are described. The compositions comprise a plurality of aromatic substituents linked by at least one amide group. The compositions have a curved backbone due to intramolecular hydrogen bonds that rigidify the amide linkage of each amide group to each aromatic substituent and due to an interaction between the aromatic substituents such that the curved backbone is stabilized. The helical compositions are formed by ridigifying the amide group, which is flanked on each side by the aromatic substituents, by introducing intramolecular hydrogen bonds into a linkage between the amide group and each aromatic substituent such that the compositions fold into a helical shape when the amide linkages are meta to each other.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 17, 2002
    Assignee: The University of Toledo
    Inventor: Bing Gong
  • Publication number: 20020156070
    Abstract: The present invention relates to novel felbamate derivatives and their use to treat neurological diseases such as epilepsy and to treat tissue damage resulting form ischemic events. The felbamate derivatives are modified to prevent the formation of metabolites that are believed responsible for the toxicity associated with felbamate therapy.
    Type: Application
    Filed: December 17, 2001
    Publication date: October 24, 2002
    Inventor: Timothy L. Macdonald
  • Patent number: 6458953
    Abstract: This invention pertains generally to valency molecules, such as valency platform molecules which act as scaffolds to which one or more molecules may be covalently tethered to form a conjugate. More particularly, the present invention pertains to valency platform molecules which comprise a carbamate linkage (i.e., —O—C(═O)—N<). In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae I, II, or III, shown in FIG. 1. In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae IV, V, or VI, shown in FIG. 8. The present invention also pertains to methods of preparing such valency platform molecules, conjugates comprising such valency platform molecules, and methods of preparing such conjugates.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: October 1, 2002
    Assignee: La Jolla Pharmaceutical Company
    Inventor: David S. Jones
  • Publication number: 20020111365
    Abstract: Novel (hydroxyethyl)ureas are described. These compounds are effective inhibitors of certain aspartyl proteases, notably secretases involved in the enzymatic cleavage of amyloid precursor protein (APP) to yield amyloid-&bgr; peptide. Methods are provided for administering the novel compounds to treat &bgr;-amyloid-associated diseases, notably Alzheimer's disease.
    Type: Application
    Filed: August 10, 2001
    Publication date: August 15, 2002
    Inventors: Michael S. Wolfe, Dennis J. Selkoe
  • Patent number: 6426414
    Abstract: The present invention relates to water dispersible polyisocyanate mixtures prepared from aliphatic, cycloaliphatic, araliphatic and/or aromatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of 5.0 to 25.0 wt. %, based on resin solids, of isocyanate groups (calculated as NCO; molecular weight=42) and c) a content of 2 to 50 wt. %, based on resin solids, of ethylene oxide units calculated as C2H2O; molecular weight 44) incorporated within polyether chains containing an average of 5 to 35 ethylene oxide units, wherein at least 60 mole % of the polyether chains are connected via allophanate groups to two polyisocyanate molecules which are each prepared from at least two diisocyanate molecules. The present invention also relates to a process for the preparation of these water dispersible polyisocyanate.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: July 30, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Laas, Reinhard Halpaap, Christian Wamprecht
  • Patent number: 6420508
    Abstract: The present invention relates to polyisocyanate mixtures prepared from aliphatic and/or cycloaliphatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of isocyanate groups (calculated as NCO; molecular weight=42) of 4.0 to 28.0 wt. % and c) a content of alkoxy groups having up to 36 carbon atoms of 2.0 to 37.5 wt. %, wherein the alkoxy groups are constituents of allophanate groups or optionally urethane groups, provided that >50 mol % of the alkoxy groups are a constituent of allophanate groups that are connected to at least two polyisocyanate molecules which are each prepared from at least two diisocyanates. The present invention also relates to a process for preparing these polyisocyanate mixtures and to coating compositions, which are highly diluted or dilutable with non-polar solvents and contain these polyisocyanate mixtures and lacquer binders or binder components optionally containing isocyanate-reactive groups.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: July 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Danielmeier, Lutz Schmalstieg, Hans-Josef Laas, Harald Mertes, Reinhard Jahn
  • Patent number: 6416686
    Abstract: Polyisocyanates are prepared by a process which comprises (i) preparation of an addition product (A) which contains one group which is reactive toward isocyanate and one isocyanate group by reacting (a) a diisocyanate I with (b) compounds containing two groups which are reactive toward isocyanate, where at least one of the components (a) or (b) has functional groups having differing reactivities toward the functional groups of the other component, (ii) if desired, intermolecular addition reaction of the addition product (A) to form a polyaddition product (P) which contains one group which is reactive toward isocyanate and one isocyanate group and (iii) reaction of the addition product (A) and/or the polyaddition product (P) with a diisocyanate or polyisocyanate II which is different from diisocyanate I.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 9, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Hans Renz, Rainer Königer, Ulrike Ehe, Ulrich Treuling, Rudolf Müller-Mall
  • Patent number: 6417313
    Abstract: Low-monomer, NCO-containing prepolymers based on 1,4-diisocyanato-2,2,6-trimethylcyclohexane, a process for their preparation, and their use.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 9, 2002
    Assignee: Degussa AG
    Inventor: Emmanouil Spyrou
  • Patent number: 6410778
    Abstract: Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: June 25, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Laqua, Ulrich Schoner, Andreas Otterbach, Hans Volkmar Schwarz
  • Patent number: 6395713
    Abstract: This invention features permeability enhancer molecules, and methods, to increase membrane permeability of negatively charged polymers thereby facilitating cellular uptake of such polymers.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: May 28, 2002
    Assignee: Ribozyme Pharmaceuticals, Inc.
    Inventors: Leonid Beigelman, Jasenka Matulic-Adamic, Alex Karpeisky, Peter Haeberli, David Sweedler, Mark Reynolds, Nilabh Chaudhary, John Min
  • Patent number: 6392087
    Abstract: The present invention relates to a dimeric urethane compounds derived from monohydric alcohols, generally fatty alcohols, and a diisocyanate according to the following reaction scheme: wherein R1 is selected from the group of saturated, unsaturated or halogen substituted linear, cyclic or branch-chained hydrocarbons and R2 is a linear, cyclic or branch-chained alkyl or aminoalkyl group ranging from two to 200 carbon atoms, preferably two to 50 carbons, more preferably 6 to 36 carbons, said urethane compound being substantially free from terminal hydroxyl groups.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: May 21, 2002
    Assignee: Alzo, Inc.
    Inventors: Albert Zofchak, Madeline Kenney, John Obeji, Michael Mosquera
  • Patent number: 6392001
    Abstract: The present invention relates to a process for the production of polyisocyanates containing allophanate groups and having aliphatically and/or cycloaliphatically bound isocyanate groups by reacting organic compounds containing urethane groups with organic polyisocyanates containing aliphatically and/or cycloaliphatically bound isocyanate groups in the presence of tin compounds and to the use of these polyisocyanates, optionally blocked with blocking agents for isocyanate groups, as an isocyanate component in the production of polyurethanes, in particular polyurethane coatings.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: May 21, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Mertes, Josef Pedain, Reinhard Halpaap
  • Patent number: 6384174
    Abstract: Fluorine-containing diols represented by the following formula are provided: wherein Rf represents a perfluoroalkyl or perfluoroalkenyl group having 1 to 20 carbon atoms; X represents a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms, a substituted or unsubstituted alkenylene group represented by —CH═CH—(CH2)n— in which n is from 1 to 10, or in which n is from 0 to 6; Y represents a direct bond, —O—, —NH—, or —R0—NH— in which R0 is an alkylene group having 1 to 6 carbon atoms; Z represents a direct bond or —N(R′)R— in which R is an alkylene group having 1 to 20 carbon atoms and R′ is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R1 and R2 divalent organic groups; and R3 represents a residual group of diisocyanate. These diols are useful for polyurethanes.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: May 7, 2002
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.
    Inventors: Kazuyuki Hanada, Kazuya Kimura
  • Patent number: 6380358
    Abstract: Trisubstituted N-protected guanidines and methods for use as guanidinylating reagents to yield N-protected guanidine derivatives.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: April 30, 2002
    Assignee: The Regents of the University of California
    Inventors: Murray Goodman, Konrad Feichtinger, Todd T. Romoff
  • Patent number: 6380423
    Abstract: The invention includes colorless compounds having a central core and at least two arms extending from the core. The core can comprise one or more atoms. The at least two arms have the formula In such formula, Z is a segment of one or more atoms; j is an integer from 1 to about 300 and can be different at one of the at least two arms than at another of the at least two arms; Q is an alkyl or aryl group and can vary amongst different alkyl and aryl groups within the colorless compound; and n is an integer greater than 1 and can be different at one of the at least two arms than at another of the at least two arms. In other aspects, the invention encompasses phase change inks incorporating the above-described colorless compound as toughening agent, and methods of printing with such phase change inks.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: April 30, 2002
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Donald R. Titterington, Wolfgang G. Wedler
  • Publication number: 20020049349
    Abstract: A low monomer 1:1-monoadduct from a diisocyanate and a hydroxy(meth)acrylate with a free diisocyanate content of less than 0.7% by weight and a free NCO content of 10.4-16.4% by weight can be used as a starting material for an acrylic or NCO functionalized crosslinker; a bonding agent for coatings and adhesives; and a linker for solid-phase synthesis of oligo-nucleotides, polynucleotides or peptides. The monoadduct is obtained by converting 5-20 mol diisocyanate with 1 mol hydroxy(meth)acrylate at a temperature of 40-120 ° C. in the presence of at least one inhibitor; subsequently separating a non-converted diisocyanate from a reaction product by short-path distillation at 80-220 ° C./0.1-10 mbar; feeding air, nitrogen monoxide or oxygen or a mixture containing (a) air, oxygen or nitrogen monoxide and (b) a proportion of 1-90% by volume of carbon dioxide, nitrogen, an inert gas or a mixture thereof through a reaction apparatus.
    Type: Application
    Filed: August 8, 2001
    Publication date: April 25, 2002
    Applicant: DEGUSSA AG
    Inventors: Stephan Kohlstruk, Lothar Hayen, Emmanouil Spyrou
  • Patent number: 6369188
    Abstract: Polyfunctional polymerizable urethane- or urea-containing oligomers allow the design, adjustment, and regulation of chemical and physical properties of the described oligomers. The invention discloses the formulas and compositions of these oligomers, methods of their synthesis, and methods of converting the described oligomers into useful polymeric products. The described oligomers can be used for many purposes, both directly and in combination with other chemicals in multiple applications such as adhesives, sealants, coatings, composites, etc., as well as in castable and moldable materials.
    Type: Grant
    Filed: March 27, 1999
    Date of Patent: April 9, 2002
    Assignee: Polymeright, Inc.
    Inventors: Leonid Rappoport, Alex Vainer, Aleksandr Yam
  • Patent number: 6362359
    Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer, X represents OR′ or NHR′ and R′ represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, and n is 2 to 6.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: March 26, 2002
    Assignee: Bayer Corporation
    Inventors: Sze-Ming Lee, Karen M. Henderson, Patricia B. Jacobs, Robert A. Sylvester, Douglas A. Wicks
  • Publication number: 20020035232
    Abstract: The invention concerns an isocyanate composition at least partially masked, characterized in that it is masked by at least two agents, one of which at least has a non-carbon carboxylic function. The invention is applicable to organic synthesis.
    Type: Application
    Filed: October 9, 2001
    Publication date: March 21, 2002
    Inventor: Jean-Marie Bernard
  • Patent number: 6355829
    Abstract: The present invention relates to aspartate-terminated urea/urethane prepolymers that are based on the reaction products of NCO prepolymers with compounds corresponding to the formula wherein X represents an organic group which has a valency of n and is inert towards isocyanate groups at a temperature of 100° C. or less, R1 and R2 may be identical or different and represent organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less, R3 and R4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n represents an integer with a value of at least 2, at an equivalent ratio of aspartate groups to isocyanate groups of 1.5:1 to 20:1. The present invention also relates to coating compositions containing the aspartate-terminated urea/urethane prepolymers and a polyisocyanate.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: March 12, 2002
    Assignee: Bayer Corporation
    Inventors: Richard R. Roesler, Lyubov K. Gindin, P. Richard Hergenrother
  • Patent number: 6350305
    Abstract: A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldehyde having a para-nitrogen and containing electron donating groups selected from the group consisting of alkyls, cycloalkyls, and oligomers or polymers derived from alkyleneoxy or aryleneoxy moieties. The colorant can be utilized in resins, waxes and inks.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: February 26, 2002
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Jeffery H. Banning
  • Patent number: 6346643
    Abstract: The present invention relates to a process for the preparation of diesters of poly (ethylene glycol) by reacting poly (oxyalkylene glycol) and amino acid hydrochloride in the presence of a condensing agent in a suitable solvent at a temperature in the range of 0° C. to room temperature for a period ranging between 1 hour to 24 hours. The reaction mixture is then filtered and the filtrate poured into another solvent, which is a nonsolvent for the products. The products precipitated thereby are then isolated.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: February 12, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Bhalchandra Shripad Lele, Mohan Gopalkrishna Kulkarni
  • Publication number: 20020007036
    Abstract: High-functionality polyisocyanates are prepared by a process which comprises
    Type: Application
    Filed: March 19, 2001
    Publication date: January 17, 2002
    Inventors: Bernd Bruchmann, Hans Renz, Rainer Koniger, Ulrike Ehe, Ulrich Treuling, Rudolf Muller-Mall
  • Publication number: 20020002300
    Abstract: The present invention relates to aspartate-terminated urea/urethane prepolymers that are based on the reaction products of NCO prepolymers with compounds corresponding to the formula 1
    Type: Application
    Filed: September 2, 1999
    Publication date: January 3, 2002
    Inventors: RICHARD R ROESLER, LYUBOV K GINDIN, P RICHARD HERGENROTHER
  • Publication number: 20010044553
    Abstract: A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula:
    Type: Application
    Filed: March 2, 2001
    Publication date: November 22, 2001
    Inventors: Kazuo Kabashima, Hiroshi Kobayashi, Tetsurou Iwaya
  • Patent number: 6316662
    Abstract: Carbamate solutions are obtainable by reacting at least one alkanolamine with carbon dioxide in, as solvent, at least one organic compound having a molecular weight of from 60 to 600 and containing at least one hydroxyl group, wherein the carbamate contains at least 0.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: November 13, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Woo, Anke Schulze, Edmund Stadler, Dieter Tintelnot, Udo Hadick, Ralf Hinrichs, Horst Hürkamp, Klaus Sobolewski
  • Patent number: 6316573
    Abstract: An adhesive paste, free of water, based on a reaction product of a polyisocyanate component and a co-reactant selected from the group consisting of a polyol, a monofunctional fatty derivative component and mixtures thereof, wherein the reaction product contains moisture reactive isocyanate groups.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: November 13, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Klauck, Wolfgang Maier