Material Is Organic Nitrogen-containing Compoud Patents (Class 528/52)
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Patent number: 7073277Abstract: The invention relates to the field of shoes in general, and more specifically to the application of microspheres in shoe material formulations to yield desired shoe properties. Even more specifically, the invention relates to a shoe component prepared from a closed cell foam incorporating microspheres to yield controlled cell size, cell size distribution and expansion characteristics. In another embodiment, the invention also relates to an inner sole for a shoe prepared from the reaction product of a polymer matrix component and a curing agent where the curing agent is incorporated in microspheres to yield a material conformable to the user's foot shape.Type: GrantFiled: June 25, 2004Date of Patent: July 11, 2006Assignee: Taylor Made Golf Company, Inc.Inventors: Robert Erb, Hyun Jin Kim, Marco Grott
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Patent number: 7060817Abstract: The present invention relates to the use of sulphonamide salts as catalysts for oligomerizing isocyanates and also to a process for NCO oligomerization using the catalysts of the invention.Type: GrantFiled: August 4, 2004Date of Patent: June 13, 2006Assignee: Bayer MaterialScience AGInventors: Jürgen Köcher, Reinhard Halpaap
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Patent number: 7038002Abstract: A fraction of diisocyanates of the diphenylmethane series containing at least 95 wt. % binuclear methylenediphenyl diisocyanate is obtained by a) reacting aniline and formaldehyde in the presence of an acid catalyst to produce diamines and polyamines of the diphenylmethane series containing binuclear methylenediphenyl diamine, b) phosgenating the diamines and polyamines produced in a), optionally in the presence of a solvent, to produce a crude diisocyanate and polyisocyanate, and c) separating a fraction containing at least 95 wt. % binuclear methylenediphenyl diisocyanate with a 4,4?-MDI content of over 60 wt. %, a 2,4?-MDI content of 4 to 35 wt. % and a 2,2?-MDI content of 0.01 to 10 wt. %, relative to the mass of the fraction, and a maximum of 20 ppm phenyl isocyanate and optionally a maximum of 50 ppm solvent from the crude diisocyanate and polyisocyanate produced in b) in a single distillation step with optional upstream and/or downstream separation of low-boiling components.Type: GrantFiled: July 21, 2004Date of Patent: May 2, 2006Assignee: Bayer Materialscience AGInventors: Hans-Georg Pirkl, Ulrich Liman, Robert Vieler, Ralf Echterhoff
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Patent number: 7001973Abstract: A low-viscosity polyisocyanate of reduced color, containing isocyanurate groups is prepared by partially trimerizing an aliphatic and/or cycloaliphatic diisocyanate in the presence of 0.02 to 2% weight, based on the weight of the diisocyanate starting material, of at least one trimerization catalyst containing a quarternary amine component and then removing excess diisocyanate from the reaction medium.Type: GrantFiled: March 26, 2003Date of Patent: February 21, 2006Assignee: Degussa AGInventors: Stephan Kohlstruk, Ingo Bockhoff, Michael Ewald, Rainer Lomoelder
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Patent number: 6995192Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: August 13, 2003Date of Patent: February 7, 2006Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
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Patent number: 6956074Abstract: There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that (A) a hindered phenol antioxidant, and (B) an amide represented by the following general formula (I): R1—CONH2??(I) wherein R1 represents an alkyl group having 12 to 21 carbon atoms is compounded in the polyurethane.Type: GrantFiled: August 19, 1999Date of Patent: October 18, 2005Assignee: Sumitomo Chemical Company, Ltd.Inventors: Kenji Kimura, Kanako Fukuda, Mutsuko Higo, Kunihito Miyake
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Patent number: 6936677Abstract: The invention concerns the use of a compound comprising a nitrogenous heterocyclic group with five cyclic members including, at least two nitrogen atoms, one of the nitrogen atoms bearing a hydrogen atom to promote the opening/closing reaction of uretidione cycles in the presence of a nucleophile compound provided that, when the nitrogenous heterocyclic group is imidazole, the opening/closing reaction is not the closing reaction of the uretidione cycle in the presence of a quaternary ammonium salt.Type: GrantFiled: December 26, 2001Date of Patent: August 30, 2005Assignee: Rhodia ChimieInventor: Jean-Marie Bernard
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Patent number: 6914115Abstract: Polyurethane powder coating compositions containing uretdione groups and curing at low temperatures are provided, along with processes for preparing such compositions, and their use as powder coatings, wherein the compositions generally contain: A) a uretdione-containing powder coating hardener derived from aliphatic, (cyclo)aliphatic, cycloaliphatic or aromatic polyisocyanates and hydroxyl-containing compounds, and having a melting point from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) a hydroxyl-containing polymer having a melting point from 40 to 130° C., and an OH number between 20 and 200 mg KOH/gram, and C) a catalyst of the formula [NR1R2R3R4]+[R5]?, in which R1-R4 simultaneously, or independently of one another, are alkyl, aryl, aralkyl, heteroaryl or alkoxyalkyl radicals, and each R1-R4 is aromatic, linear or branched, unbridged or bridged with other radicals, R1-R4.Type: GrantFiled: November 27, 2002Date of Patent: July 5, 2005Assignee: Degussa AGInventors: Emmanouil Spyrou, Holger Loesch, Andreas Wenning
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Patent number: 6875243Abstract: Catalysts and processes for preparing polyisocyanates containing isocyanurate groups, and their use, wherein the catalysts are represented by the following formula (1): [Hl?Xm?Fn?]p·[R(4?q)Si(NR1R2)q]r??(I), wherein n=m+l with 1?m/n>0, and l?0, p>0 and r>0, and the ratio p/r is any value, q=1 or 2, and R, R1, R2 and X are as defined.Type: GrantFiled: November 27, 2002Date of Patent: April 5, 2005Assignee: Degussa AGInventors: Michael Ewald, Manuela Windmueller, Waltraud Poersch, Stephan Kohlstruk
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Patent number: 6846550Abstract: An adhesive film for underfill which relaxes the stress formed in the wiring circuit substrate, semiconductor element and electrode parts for connection. The adhesive film is a quickly hardening type, and forms a highly heat resistant sealing resin layer quickly between the wiring circuit substrate and semiconductor element of a semiconductor device.Type: GrantFiled: November 12, 2003Date of Patent: January 25, 2005Assignee: Nitto Denko CorporationInventors: Akiko Matsumura, Kazuki Uwada, Naoki Sadayori, Yuji Hotta
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Publication number: 20040266971Abstract: Golf equipment having improved cure characteristics that includes a polyurea-based composition formed of a prepolymer and a curing agent, wherein the curing agent is a polyamine adduct formed by a condensation reaction between a low molecular weight polyamine and a carbonyl compound.Type: ApplicationFiled: July 26, 2004Publication date: December 30, 2004Inventor: Shenshen Wu
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Patent number: 6833044Abstract: The solvent-free two-component adhesive composition of the present invention is prepared by a polyol component (A) and a polyisocyanate component (B), wherein the composition comprises at least one polyol component having crystallinity and selected from the group consisting of a polyester polyol, a polyether polyol, a polycarbonate polyol and a polyurethane polyol in an amount of 3 to 50% by weight relative to the total weight of the components (A) and (B). The adhesive composition has the initial viscosity of about 100 to 1,500 mPa·s (in particular, 100 to 1,000 mPa·s) at 70° C. immediately after the components (A) and (B) are mixed together, and the increasing ratio of viscosity after the composition is stood at 70° C. for 10 minutes to the initial viscosity of 120% or less. According to the present invention, a composite laminated film having the good external appearance can be produced simply and effectively.Type: GrantFiled: February 26, 2002Date of Patent: December 21, 2004Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Akihiro Imai, Kazuaki Imamura, Taiji Morimoto
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Patent number: 6815528Abstract: The invention provides generally a new type of organic electrochromic Near Infrared (NIR)-active materials capable of absorbing and attenuating the light in the NIR region around 1550 nm and forming thin films on electrodes for variable optical attenuator (VOA) applications. They have utility in planar VOA devices. The materials are ruthenium complexes. Unsymmetrical complexes having two different substituents are disclosed, where one substituent is more electron-donating than the other. Complexes which are dimers or trimers (symmetrical or unsymmetrical) are disclosed, as are polymeric complexes. Crosslinked polymeric complex films are also disclosed.Type: GrantFiled: May 22, 2002Date of Patent: November 9, 2004Assignee: TWLinks Inc.Inventor: Zhi Yuan Wang
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Patent number: 6815467Abstract: A method for producing a polyoxyalkylene polyol which comprises subjecting propylene oxide and ethylene oxide to ring-opening addition polymerization with an initiator in the presence of a catalyst, wherein the polyoxyalkylene polyol is a polyoxyalkylene polyol obtained by subjecting propylene oxide to ring-opening addition polymerization with an initiator in the presence of a double metal cyanide complex catalyst to form an oxypropylene block chain, subjecting ethylene oxide and propylene oxide to ring-opening addition polymerization randomly to form an oxyalkylene random chain, changing the catalyst and subjecting ethylene oxide to ring-opening addition polymerization in the presence of an alkali metal catalyst to form an oxyethylene block chain, and the polyoxyalkylene polyol is a polyoxyalkylene polyol having a hydroxyl value of from 5 to 56 mgKOH/g, a proportion of an initiator residue of at most 25 mass %, a proportion of the oxypropylene block chain of from 5 to 50 mass %, a total oxyethylene group cType: GrantFiled: July 18, 2002Date of Patent: November 9, 2004Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Akio Horie, Hiroshi Wada, Kayoko Sugiyama, Etsuko Akagi
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Patent number: 6803445Abstract: A moisture curable polyurethane composition comprising (A) a urethane prepolymer having two or more isocyanate groups in the molecule, (B) an inorganic filler as a storage stabilizer, (C) an N-silylamide compound represented by the formula (1), (D) an epoxy resin, and/or (E) a moisture latent curing agent, and a moisture curable epoxy resin composition comprising (D) an epoxy resin, (C) an N-silylamide compound, and (E) a moisture latent curing agent. (R1—CONH)4-n—Si—R2n (1) wherein R1 is a hydrocarbon group having 5 to 21 carbon atoms optionally containing a heteroatom, provided that when n is 0, 1 or 2, R1s may be the same or different; and R2 is an alkyl or alkoxy group having 1 to 3 carbon atoms; and n is 0, 1, 2 or 3. The moisture curable compositions are excellent in storage stability and thixotropic properties, have high curing rates at the time of working, and can give rise to cured products having excellent mechanical properties such as tensile strength.Type: GrantFiled: August 6, 2002Date of Patent: October 12, 2004Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazunori Ishikawa, Hiroyuki Hosoda
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Patent number: 6800714Abstract: The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.Type: GrantFiled: February 4, 2003Date of Patent: October 5, 2004Assignee: Degussa AGInventors: Stephan Kohlstruk, Lutz Mindach, Michael Ewald
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Patent number: 6777469Abstract: Aqueous or solid nitrogen containing compound compounds are produced by heating urea with wet solid sewer sludge thereby producing a urea-urea condensate-sewer sludge composition in a process to dry out the sewer sludge. The urea reacts with itself and with the compounds in the sewer sludge. The urea and/or urea condensate reacts with the sulfur containing compounds thereby reducing the odor from heating the sewer sludge. The urea-urea condensate-sewer sludge composition is useful as a bio-fertilizer, may be utilized to fight grass, forest, building fires, flame retard other flammable organic material by applying it on or incorporating it in these flammable organic materials and may be reacted with aldehydes to produce resins. Carbonization auxiliaries, such as phosphorus containing compounds, metal containing compounds that will accelerate carbonization, heat reflector, surfactant and fillers may be added to or reacted with the aqueous or solid urea-urea condensate-sewer sludge composition.Type: GrantFiled: October 9, 2001Date of Patent: August 17, 2004Inventor: David H. Blount
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Patent number: 6777494Abstract: A monomer composition characterized by being curable to form a resin suitable for optical products having a balanced refractive index and Abbe's number range and good tintability comprising a polyene monomer; and polyisocyanate, polyisothiocyanate, or an isocyanate monomer containing at least one isothiocyanate group; and a monomer having two or more active hydrogen groups such as polythiols, polyamines, and polyols. The invention also provides a special process for making the composition and for curing the composition to form a resin product.Type: GrantFiled: March 29, 1999Date of Patent: August 17, 2004Assignee: Optima Inc.Inventors: Zhou Yang, Yin-Nian Lin, Zhenya Zhu, Brian George Risch
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Publication number: 20040147705Abstract: A method for producing a polyurethane resin, which comprises reacting a polyol with a polyisocyanate in the presence of a catalyst selected from the group consisting of a catalyst (A) containing an amine compound of the following formula (1): 1Type: ApplicationFiled: January 15, 2004Publication date: July 29, 2004Applicant: Tosoh CorporationInventors: Takahiro Masuda, Hiroaki Nakamura, Yutaka Tamano
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Patent number: 6756468Abstract: Cmpositions for coatings having a dry content higher than 80%, preferably of about 85-90% by weight, based on polyisocyanates and PFPEs, completely crosslinkable also in a range of temperatures between 5° C. and 20° C., comprising the following components: Component 1): mixture comprising: 1.a) Partially fluorinated prepolymers, having free NCO groups, obtained by reaction of (per)fluoropolyethers (PFPEs) diols having number average molecular weight Mn in the range 800-1,300 with the cyclic trimer of the isophorondiisocyanate, 1.b) non cyclic isocyanic trimer of hexamethylendiisocyanate, Component 2): (per) fluoropolyether (PFPE) diol with Mn in the range 350-700, preferably 500-650, component 3): inert organic solvent in crosslinking conditions, complement to 100% by weight of the composition.Type: GrantFiled: January 12, 2001Date of Patent: June 29, 2004Assignee: Ausimont S.p.A.Inventors: Stefano Turri, Carlo Pogliani
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Patent number: 6737471Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.Type: GrantFiled: December 14, 2001Date of Patent: May 18, 2004Assignee: Bayer AktiengesellschaftInventors: Klaus Lorenz, Marc Schütze, Erhard Michels, Alexander Eckhardt
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Patent number: 6730628Abstract: The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.Type: GrantFiled: February 4, 2003Date of Patent: May 4, 2004Assignee: Degussa AGInventors: Stephan Kohlstruk, Lutz Mindach, Michael Ewald
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Patent number: 6723819Abstract: Polyurethane resins are produced by reacting a polyol with a polyisocyanate in the presence of an amine catalyst of one of the formulae:Type: GrantFiled: May 21, 2002Date of Patent: April 20, 2004Assignee: Tosoh CorporationInventors: Takahiro Masuda, Hiroaki Nakamura, Yutaka Tamano
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Patent number: 6703471Abstract: Low-odor, storage-stable monomer-containing polyisocyanurate is prepared from isophorone diisocyanate by conducting a partial trimerization for 3 minutes to 3 hours in the presence of 0.05-2% by weight of a catalyst, based on the weight of the diisocyanate, the catalyst having the formula [R—NX3]m⊕mY⊖ wherein Y⊖ is a carboxylic acid anion of 4-8 carbons, R is a &bgr;-hydroxyalkyl group of 2-6 carbons, X is an alkylene group of 2-3 carbons and m is a number from 1.0 to 2.0. The three radicals X form a ring with the quaternary nitrogen by way of a common nitrogen atom, which may be partly &bgr;-hydroxyalkylated, said ring optionally having an OH group positioned &agr;, &bgr; or &ggr; to the nitrogen. The reaction proceeds at a temperature of 0-160° C.Type: GrantFiled: June 27, 2002Date of Patent: March 9, 2004Assignee: Degussa AGInventors: Stephan Kohlstruk, Manfred Kreczinski, Rainer Lomölder
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Patent number: 6660376Abstract: The present invention relates to a hot melt moisture cure adhesive composition well suited for bonding porous substrates such as fabric, methods of adhesively bonding substrates and corresponding articles. The adhesive composition exhibits a combination of flexibility, high green strength, low molten viscosity and high heat resistance. In view of these properties, the adhesive is particularly amendable to hot melt adhesive application techniques wherein small individual discrete deposits of adhesive are applied to a substrate. The adhesive composition prepolymer is preferably the reaction product of at least one polyol, at least one polyisocyanate and at least one high molecular weight thermoplastic polyurethane lacking hard segments.Type: GrantFiled: June 6, 2000Date of Patent: December 9, 2003Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: John M. Zimmel, William L. Bunnelle, Brendon J. Kryzer
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Patent number: 6646106Abstract: The invention concerns optically active polymers, obtainable by polymerizing chiral diphosphine having a C2 axis of symmetry, excluding all other symmetry element, with one or several polymerizable monomers, said chiral diphosphine consisting of a chiral body bearing two identical functional groups capable of reacting with said polymerizable monomers.Type: GrantFiled: December 11, 2001Date of Patent: November 11, 2003Assignees: Rhodia Chimie, Centre National de la Recherche Scientifique (CNRS)Inventors: Marc Lemaire, Rob Ter Halle, Emmanuelle Schulz, Benoît Colasson, Michel Spagnol, Christine Saluzzo, Thierry Lamouille
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Patent number: 6642283Abstract: Polyurethane article black colorants which comprise a novel blue polymeric anthraquinone colorant, rather than the previous standard polymeric triphenylmethane blue-type colorants are provided. Such a novel blend of colorants to produce black colorations within the target polyurethane foams exhibits very low color degradation within polyurethane foams, primarily due to the stability and resiliency of the novel anthraquinone-based polymeric colorant in the presence of high isocyanate levels, as well as large amounts of reactive tertiary amines (from catalyst residue, for example). A black colorant comprising such a novel blue polymeric colorant, as well as polyurethane foams comprising such a novel black coloring agent and methods of producing such foams are all contemplated within this invention.Type: GrantFiled: October 26, 2001Date of Patent: November 4, 2003Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Sandy G. Belue
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Publication number: 20030204041Abstract: The invention relates to novel ionic liquids, to a process for their preparation, and to their use as solvents or catalysts for chemical reactions, especially as catalysts for the oligomerisation of isocyanates.Type: ApplicationFiled: April 22, 2003Publication date: October 30, 2003Inventors: Hans-Josef Laas, Reinhard Halpaap, Frank Richter, Jurgen Kocher
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Publication number: 20030187178Abstract: A low-viscosity polyisocyanates and polyisocyanates of reduced color containing isocyanurate groups is prepared by a process comprising, partially trimerizing aliphatic and/or cycloaliphatic diisocyanates in the presence of 0.Type: ApplicationFiled: March 26, 2003Publication date: October 2, 2003Applicant: DEGUSSA AGInventors: Stephan Kohlstruk, Ingo Bockhoff, Michael Ewald, Rainer Lomoelder
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Patent number: 6624279Abstract: The invention provides water-soluble, &bgr;-hydroxy carbamate-functional materials and coating compositions, especially waterborne coating compositions, containing the carbamate-functional materials. The invention further provide a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.Type: GrantFiled: January 9, 2002Date of Patent: September 23, 2003Assignee: BASF CorporationInventors: Walter H. Ohrbom, David J. Law, Patricia A. Herrel
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Patent number: 6613863Abstract: A low-viscosity polyisocyanate of reduced color, containing isocyanurate groups is prepared by partially trimerizing an aliphatic and/or cycloaliphatic diisocyanate in the presence of 0.02 to 2% by weight, based on the weight of the diisocyanate starting material, of at least one trimerization catalyst containing a quarternary amine component and then removing excess diisocyanate from the reaction medium.Type: GrantFiled: December 21, 2001Date of Patent: September 2, 2003Assignee: Degussa AGInventors: Stephan Kohlstruk, Ingo Bockhoff, Michael Ewald, Rainer Lomoelder
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Publication number: 20030158368Abstract: The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.Type: ApplicationFiled: February 4, 2003Publication date: August 21, 2003Applicant: DEGUSA AGInventors: Stephan Kohlstruk, Lutz Mindach, Michael Ewald
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Publication number: 20030153714Abstract: The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.Type: ApplicationFiled: February 4, 2003Publication date: August 14, 2003Applicant: DEGUSA AGInventors: Stephan Kohlstruk, Lutz Mindach, Michael Ewald
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Patent number: 6593435Abstract: The invention relates to methods for producing storage-stable, latent-reactive layers and powders of surface-deactivated, solid polyisocyanates and dispersions or aqueous solutions of isocyanate reactive polymers, which can be used as adhesives and coverings. Said dispersions, suspensions or aqueous solutions can applied to a substrate in an appropriate form. Water can then be eliminated at a temperature inferior to the reaction temperature of the isocyanates and this operation can take place at a temperature above the softening temperature of the polymers. This process produces, at ambient temperature, dry and substantially water free layers which are storage stable and can react with the polymers at the polyisocyanate reaction temperature.Type: GrantFiled: February 19, 2002Date of Patent: July 15, 2003Assignee: Bayer AGInventor: Thomas Abend
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Patent number: 6590057Abstract: The invention provides polyurethane elastomers (PU elastomers), a process for their production using special catalyst mixtures and their use in particular for the manufacture of shoe soles.Type: GrantFiled: August 27, 2002Date of Patent: July 8, 2003Assignee: Bayer AktiengesellschaftInventors: Klaus Brecht, Wolfgang Grimm, Stephan Schleiermacher, Marc Schütze
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Patent number: 6559274Abstract: The present invention relates to a composition comprising monoaspartic acid esters and polyaspartic acid esters as well as an addition product prepared from an unsaturated dicarboxilic acid compound and a thiol, a process for their production, and their use as reactive component for polyisocyanates in two-component polyurethane systems.Type: GrantFiled: October 10, 2001Date of Patent: May 6, 2003Assignee: Bayer AktiengesellschaftInventors: Rolf Gertzmann, Lutz Schmalstieg, Stefan Groth
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Patent number: 6552154Abstract: The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.Type: GrantFiled: September 18, 2000Date of Patent: April 22, 2003Assignee: Degussa AGInventors: Stephan Kohlstruk, Lutz Mindach, Michael Ewald
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Patent number: 6525107Abstract: Novel acid-blocked amine catalysts and their use in the preparation of polyurethanes. The acid-blocked amine catalysts have the general structure shown below: wherein A is the residue of an organic acid anhydride; R1 is H or C1 to C6 alkyl; R2 is H or C1 to C6 alkyl; n is an integer of 0 to 10; and B is a compound containing a protonated amine and one or more primary amine, secondary amine, or tertiary amine groups.Type: GrantFiled: June 18, 2002Date of Patent: February 25, 2003Assignee: Air Products and Chemicals, Inc.Inventors: Stephan Herman Wendel, Reza Fard-Aghaie
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Patent number: 6503997Abstract: A polyurethane/polyurethane urea resin obtained by reacting an isocyanate group-terminated polyurethane prepolymer (A) obtained by reaction of high molecular weight active hydrogen compound and a polyisocyanate compound, with a chain extender (B), in a solvent and thereafter by removing the solvent, wherein the isocyanate group-terminated polyurethane prepolymer (A) is an isocyanate group-terminated polyurethane prepolymer obtained by reacting the following polyol (1) with a polyisocyanate compound in the presence of an excess amount of an isocyanate group, followed by reacting the following polyol (2) with the reaction product of polyol (1) in the presence of an excess amount of an isocyanate group; Polyol (1): a polyoxyalkylene polyol having a hydroxyl group value of at most 70, a total unsaturation degree of at most 0.Type: GrantFiled: November 17, 2000Date of Patent: January 7, 2003Assignee: Asahi Glass Company, LimitedInventors: Joichi Saito, Josho Kashiwame
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Patent number: 6500513Abstract: The invention provides a two-part adhesive composition making it possible to mutually bond disk substrates within a relatively short time and to produce an optical disk, and an optical disk having a metal film, corrosion of which is restricted under a high-temperature high-humidity condition, and which is produced by using the two-part adhesive composition. A two-part adhesive composition of the invention comprises first and second parts each containing urethane acrylate having a polytetramethylene glycol skeleton and an acrylate having a hydroxyl group in its molecule, wherein the first part further contains a diacyl peroxide and the second part further contains a tertiary amine. Organic peroxide is preferably diacyl peroxide and a setting promoter is preferably a tertiary amine. Either one, or both, of the first and second parts may further contain a photo-polymerization initiator.Type: GrantFiled: November 29, 2000Date of Patent: December 31, 2002Assignee: 3M Innovative Properties CompanyInventors: Sana Fujii, Sumita B. Mitra, Katsuya Takamori, Kazuta Saito
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Patent number: 6492484Abstract: A polycarbodiimide represented by the formula (I): wherein R1 is an alkylene group having 2 to 10 carbon atoms, R2 is a divalent aromatic group, R3 is a monovalent aromatic group, k is 0 or an integer of 1 to 30, m is an integer of 2 to 100, and n is 0 or an integer of 1 to 30, a process for preparing the same and uses of the polycarbodiimide. The polycarbodiimide is favorably used in the form of films such as adhesive films for die bonding and adhesive films for underfilling, which can be used in semiconductor devices.Type: GrantFiled: August 30, 2001Date of Patent: December 10, 2002Assignee: Nitto Denko CorporationInventors: Sadahito Misumi, Yuji Hotta, Akiko Matsumura
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Patent number: 6452003Abstract: The present invention provides a process, which includes: partially trimerizing isophorone diisocyanate in the presence of a catalyst having the formula: [R—NX3]⊕Y⊖ wherein R and X are butyl groups and Y− is CH3COO−; or wherein R is a benzyl group, Y− is a carboxylate anion having from 4 to 8 carbon atoms and each X is an alkylene group having from 2 to 3 carbon atoms, wherein the three alkylene groups share a common carbon atom and, together with the N atom in the formula, form a tricyclic structure, and wherein at least one alkyene group has at least one OH group in an &agr; or &bgr; &ggr; position relative to the N atom, to obtain a monomer-containing polyisocyanurate mixture. The present invention also provides a monomer-containing polyisocyanurate mixture made from the above process.Type: GrantFiled: July 6, 2001Date of Patent: September 17, 2002Assignee: Degussa AGInventors: Michael Ewald, Rainer Lomoelder, Stephan Kohlstruk
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Publication number: 20020123598Abstract: Polyol blend comprising a polyester polyol, a tertiary amine catalyst and an organic carboxylic acid wherein said carboxylic acid contains at least one OH, SH, NH2 or NHR functional group, wherein R is an alkyl, cycloalkyl or aryl group and the use of said polyol blend in the manufacture of rigid polyurethane foams.Type: ApplicationFiled: March 6, 2002Publication date: September 5, 2002Applicant: Imperial Chemical Industries PLCInventors: Thomas Heinrich Sieker, Franco Gabrieli, Saskia Rachel Walraedt
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Publication number: 20020123608Abstract: 1Type: ApplicationFiled: September 17, 2001Publication date: September 5, 2002Inventor: Grover Latham Howard
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Publication number: 20020120027Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.Type: ApplicationFiled: December 14, 2001Publication date: August 29, 2002Inventors: Klaus Lorenz, Marc Schutze, Erhard Michels, Alexander Eckhardt
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Publication number: 20020120028Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one disulphonates or polysulphonates.Type: ApplicationFiled: December 14, 2001Publication date: August 29, 2002Inventors: Klaus Lorenz, Marc Schutze, Erhard Michels, Alexander Eckhardt
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Publication number: 20020120089Abstract: A low-viscosity polyisocyanates and polyisocyanates of reduced color containing isocyanurate groups is prepared by a process comprising, partially trimerizing aliphatic and/or cycloaliphatic diisocyanates in the presence of 0.Type: ApplicationFiled: December 21, 2001Publication date: August 29, 2002Applicant: DEGUSSA AGInventors: Stephan Kohlstruk, Ingo Bockhoff, Michael Ewald, Rainer Lomoelder
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Patent number: 6432541Abstract: A resin composition including from about 1 to about 100 weight percent of a thermoplastic oxazolidone ring-containing compound having a molecular weight of at least 5000, which is the reaction product of: a) from about 20 to about 43 weight percent, based on the polyepoxide and polyisocyanate reactants, of a polyisocyanate having an isocyanate-functionality of from about 1.8 to about 2.2; b) from about 80 to about 57 weight percent, based on the polyepoxide and polyisocyanate reactants, of a polyepoxide having an epoxide functionality of from about 1.8 to about 2.2; and optionally, c) a chain extender. The resin composition is used as an adhesive to adhere a copper foil to a prepreg or a laminate, with improved peel strength and Tg.Type: GrantFiled: December 10, 1999Date of Patent: August 13, 2002Assignee: Dow Global Technologies Inc.Inventor: Joseph Gan
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Patent number: 6403216Abstract: A synthetic fiber which is excellent in moisture-absorbing/releasing property and exhibits high elongation and high stretch recovery, characterized in that it has moisture absorption ratios of 0.5 to 4.0% by weight in environments of 20° C.×65% RH and that of 4.5% by weight or more in environments of 30° C.×90% RH, respectively, and also has a difference between the absorption ratios in both the environments of 4.0% by weight or more. The representative examples of such fibers include polyurethane synthetic fiber and polyether synthetic fiber. The synthetic fiber maintains a high strength at break of an elastic fiber component thereof also in the state of having absorbed moisture, is excellent in color fastness to rubbing, and can be used for manufacturing a stretch fiber fabric product excellent in comfort through blending with another fiber material.Type: GrantFiled: August 9, 2001Date of Patent: June 11, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Masanori Doi, Takeshi Sugaya, Sueo Ohashi
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Patent number: 6395861Abstract: A fast-curing polyurethane coating system for a game ball is described herein. The coating system comprises a mixture of a polyol, an isocyanate, a solvent and a surprisingly high level of catalyst which accelerates the curing process. The coating is a two-part polyurethane system which is preferably applied by spraying. The coating is particularly well-suited for use on golf balls, and also can be applied to other game balls such as softballs, baseballs, and cricket balls.Type: GrantFiled: March 1, 1996Date of Patent: May 28, 2002Assignee: Spalding Sports Worldside, Inc.Inventor: Thomas J. Kennedy, III