Reactant Contains At Least One Heterocyclic Ring Patents (Class 528/73)
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Patent number: 7026430Abstract: Disclosed herein is a method of making a golf ball by mixing a polyisocyanate copolymer and at least one other reactant, such as a polyol, to form a reaction product and reaction injection molding the reaction product to form at least one of a core and cover component. Preferably, the polyisocyanate copolymer includes an aromatic polyisocyanate and an aliphatic polyisocyanate. Most preferably, the polyisocyanate copolymer includes a copolymer of toluene diisocyanate and hexamethylene diisocyanate.Type: GrantFiled: April 2, 2004Date of Patent: April 11, 2006Assignee: Callaway Golf CompanyInventors: Viktor Keller, Thomas J. Kennedy, III, William M. Risen, Jr., Michael J. Tzivanis
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Patent number: 7026371Abstract: An electron-beam curable polyurethane resin for magnetic recording media is produced by modifying a polyurethane resin having active hydrogen in the molecule thereof with a compound having at least two acrylic double bonds, wherein the modification is performed on the active hydrogen so that the polyurethane resin becomes electron-beam curable. By subjecting a known thermosetting polyurethane resin to electron-beam sensitive modification, the resulting resin is highly crosslinked and is thus capable of being suitably used for magnetic recording media. Also, an electron-beam curable polyurethane resin having excellent crosslinking characteristics can easily be produced from the known thermosetting polyurethane resin. Furthermore, by using the electron-beam curable polyurethane resin, a high-performance magnetic recording medium can be provided.Type: GrantFiled: March 27, 2003Date of Patent: April 11, 2006Assignee: TDK CorporationInventors: Hideki Sasaki, Hiroyuki Yamada, Kenichi Kitamura, Kazushi Tanaka
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Patent number: 7022767Abstract: The present invention provides a composition of matter having the structure: where Q is a multi-valent organic moiety containing isocyanurate functionality; X is H, —CH2OH, or —CH2OR?; R? is an alkyl or aryl group having from 1 to 12 carbon atoms; and y is at least 2. Also provided is a curable composition containing the composition of matter.Type: GrantFiled: February 5, 2004Date of Patent: April 4, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Michael A. Mayo, Steven V. Barancyk, Jane N. Valenta, Sherry M. Gaggini, William A. Humphrey
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Patent number: 7022804Abstract: The invention relates to a moisture-crosslinkable hot-melt adhesive which is composed of a polyurethane prepolymer obtained by polyaddition of at least one polyol to at least one isocyanate chosen from the group of diisocyanates trimerized as isocyanurates and reaction products of diisocyanates with water, the prepolymer having a content of free NCO group of between 1 and 25% by weight. The adhesive according to the invention may be used for the adhesive bonding of fixing components of the Velcro® type to articles intended for hygiene.Type: GrantFiled: June 4, 2003Date of Patent: April 4, 2006Assignee: Bostik SAInventors: Michel Miskovic, François Bauduin, Patrick Bouttefort, Jean-François Chartrel
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Patent number: 7001974Abstract: The present invention provides a process for producing plastic lenses, which are transparent, less colored, are not remarkably deteriorated in basic physical properties such as mechanical strength and impact resistance, and have higher refractive index and Abbe's number, and plastic lenses.Type: GrantFiled: May 30, 2003Date of Patent: February 21, 2006Assignee: HOYA CorporationInventor: Masahisa Kosaka
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Patent number: 7001930Abstract: A non-aqueous, solvent-free formulation for producing clear, transparent, heat-resistant elements, suitable for use as lenses in optoelectronic devices, consists essentially of an acidic, nonpolymerizing acrylic resin; THFA, DMA, HEMA, HBA, or an equivalent polymerizable diluent in which the acrylic resin is dissolved; and a free-radical photoinitiator.Type: GrantFiled: January 14, 2003Date of Patent: February 21, 2006Assignee: Dymax CorporationInventors: John R. Arnold, Maria Fe Aton Audia
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Patent number: 7001972Abstract: The present invention provides polyamines which contain urea groups, a process for the preparation thereof and their use to produce adhesives, sealants, embedding compounds, moulded items or coatings.Type: GrantFiled: July 17, 2000Date of Patent: February 21, 2006Assignee: Bayer AktiengesellschaftInventors: Jörg Tillack, Lutz Schmalstieg, Wolfgang Puetz, Gerhard Ruttmann
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Patent number: 6992164Abstract: In a uniformly copolymerized one-part polyurethane resin composition with improved processing behaviors and chemical resistance, the one-part polyurethane resin composition comprises about 20 to 50% by weight of a hard segment and about 50 to 80% by weight of a soft segment. The hard segment reduces drying time and recoating time of a film coated by the composition, and the soft segment improves processing behaviors of the film including rolling and spraying properties. The one-part polyurethane resin composition may further comprise a catalyst. The catalyst may regulate film drying time and improve gloss of a coated film. Thus, the resin composition may be applied in various fields.Type: GrantFiled: June 27, 2003Date of Patent: January 31, 2006Assignee: DPI Co., Ltd.Inventors: Ju-Kil Lee, Hee-Jong Kim
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Patent number: 6987158Abstract: Polyaddition compounds containing uretdione groups prepared by reacting uretdione polyisocyanates formed from diisocyanates having exclusively secondary- and/or tertiary-attached isocyanate groups with a molar fraction of isocyanurate structures, based on the sum of uretdione groups and isocyanurate groups, of not more than 10%, with compounds reactive towards isocyanates. The polyaddition compounds can be use as a starting component in the preparation of polyurethane plastics, in particular as crosslinkers for heat-crosslinkable powder coating materials. The compounds may be used as starting components in the preparation of moldings and shaped parts, and as starting components in the preparation of coating materials and coatings.Type: GrantFiled: July 3, 2003Date of Patent: January 17, 2006Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Laas, Reinhard Halpaap, Peter Thometzek, Michael Grahl, Hans-Ulrich Meier-Westhues
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Patent number: 6979719Abstract: The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for making a bicyclo-orthoester-functional compound from the corresponding oxetane compound is described.Type: GrantFiled: February 22, 2000Date of Patent: December 27, 2005Assignee: Akzo Nobel N.V.Inventors: Klaus Hobel, Huig Klinkenberg, Arie Noomen
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Patent number: 6960640Abstract: The composition for optical materials of the present invention comprises a compound having in one molecule at least one structure represented by the following formula (1): wherein R1, R2, R3, R4, X, Y and n are as defined in the disclosure, an amine compound and an isocyanate compound. Resins obtained by curing the composition by polymerization are useful as well-balanced optical materials having a high impact resistance, a high refractive index and a sufficiently high Abbe's number.Type: GrantFiled: August 27, 2002Date of Patent: November 1, 2005Assignee: Mitsubishi Gas Chemical Co., LTD.Inventors: Yuichi Yoshimura, Motoharu Takeuchi, Kazumoto Nakagawa
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Patent number: 6956066Abstract: A fully imidized, solvent-free polyimide foam having excellent mechanical, acoustic, thermal, and flame resistant properties is produced. A first solution is provided, which includes one or more aromatic dianhydrides or derivatives of aromatic dianhydrides, and may include one or more aromatic diamines, dissolved in one or more polar solvents, along with an effective amount of one or more blowing agents. This first solution may also advantageously include effective amounts respectively of one or mores catalysts, one or more surfactants, and one or more fire retardants. A second solution is also provided which includes one or more isocyanates. The first and second solutions are rapidly and thoroughly mixed to produce an admixture, which is allowed to foam—in an open container, or in a closed mold—under ambient conditions to completion produce a foamed product. This foamed product is then cured by high frequency electromagnetic radiation, thermal energy, or a combination thereof.Type: GrantFiled: February 11, 2004Date of Patent: October 18, 2005Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Juan M. Vazquez, Roberto J. Cano, Brian J. Jensen, Erik S. Weiser
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Patent number: 6946538Abstract: The invention concerns a method for catalytic (cyclo)condensation of monomer isocyanates, characterised in that it comprises: a) reacting starting monomer isocyanates with a catalyst comprising a mineral or organic salt of a compound of formula (I), wherein Y? is selected among: a negatively charged oxygen atom, and a carbonaceous radical comprising a negative charge borne by an atom of column VB of the periodic table or by an oxygen atom advantageously by a nitrogen atom and whereof the bond with the silicon of formula (I) is borne by an atom of column VB of the periodic table, advantageously by a nitrogen atom; wherein R1, R2 and R3, identical or different, represent a monovalent hydrocarbon radical having advantageously 1 to 30 carbon atoms, or a precursor of said compound, at a temperature of at least 20° C. and advantageously of at least 40° C. and not more than 200° C., advantageously not more than 150° C.Type: GrantFiled: December 28, 2001Date of Patent: September 20, 2005Assignee: Rhodia ChimieInventors: Jean-Marie Bernard, Damien Bonneau, Marc Visseau
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Patent number: 6936678Abstract: The invention relates to a novel process for preparing low-monomer-content trimers based on 2,4- and 2,6-diisocyanatotoluene (TDI) and to the use thereof in coatings. The trimers are produced from a mixture of from 20 to 80% by weight of diisocyanate component containing at least 80% by weight of 2,4- and/or 2,6-diisocyanatotoluene and from 20 to 80% by weight of solvents and/or diluents and also phenolic catalysts containing dialkylaminomethyl groups.Type: GrantFiled: June 30, 2003Date of Patent: August 30, 2005Assignee: Bayer AktiengesellschaftInventors: Martin Brahm, Joachim Simon, Oswald Wilmes, Jürgen Walloschek
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Patent number: 6930196Abstract: A prepolymer is prepared by reacting a mixture containing (a) at least one multifunctional compound, (b) at least one diisocyanate, and (c) at least one diol. The diol has a weight average molecular weight of at most 6000. The prepolymer, when reacted with an excess of water, forms a hydrogel polymer. The mixture of the prepolymer and water may be reaction molded, and used to form a contact lens.Type: GrantFiled: June 26, 2001Date of Patent: August 16, 2005Assignee: Novartis AGInventors: Gregory Carlson, Edgar Allan Blair, Peter Wachtel, Michael Quinn, Joshua Wallach
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Patent number: 6916897Abstract: Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coating films of high gloss, and the powder coatings produced accordingly are provided.Type: GrantFiled: May 13, 2003Date of Patent: July 12, 2005Assignee: Degussa AGInventor: Rainer Gras
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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: 6911237Abstract: Water-soluble polyurethanes prepared by reacting a polyisocyanate and a polyalkylene oxide polyol at a molar ratio sufficient to form an isocyanate-terminated polymer, and reacting the isocyanate-terminated polymer with an epoxy alcohol to form a water-soluble, epoxy-terminated polyurethane, are disclosed. Also disclosed are aqueous fiber sizing compositions including the water-soluble polyurethanes described.Type: GrantFiled: July 3, 2002Date of Patent: June 28, 2005Assignee: Cognis CorporationInventor: Douglas F. Fry
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Patent number: 6908980Abstract: Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coating films of high gloss, and the powder coatings produced accordingly are provided.Type: GrantFiled: May 13, 2003Date of Patent: June 21, 2005Assignee: Degussa AGInventor: Rainer Gras
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Patent number: 6908957Abstract: Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring.Type: GrantFiled: August 3, 2001Date of Patent: June 21, 2005Assignee: National Starch and Chemical Investment Holding CorporationInventors: Osama M. Musa, Donald E. Herr, Nikola A. Nikolic
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Patent number: 6894124Abstract: This invention provides high solid paint compositions comprising as the basic components a hydroxyl-containing compound having a weight-average molecular weight of not more than 1,000 and a hydroxyl value of 200-800 mgKOH/g, and a polyisocyanate compound, and a process for forming multi-layered coating film using any of said compositions.Type: GrantFiled: October 31, 2001Date of Patent: May 17, 2005Assignee: Kansai Paint Co., Ltd.Inventors: Yoshizumi Matsuno, Hiroyuki Onoda, Takashi Noguchi, Hisashi Isaka
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Patent number: 6891012Abstract: A solid isocyanate-based composition having a glass transition temperature of at least 30° C. is produced by at least partially blocking the isocyanate groups of a polyisocyanate with a compound corresponding to the specified Formula I. This blocked isocyanate composition is useful in the production of powder coatings which are capable of being cured at temperatures of from 80 to 220° C.Type: GrantFiled: May 23, 2003Date of Patent: May 10, 2005Assignee: Bayer Materialscience LLCInventors: Thomas Faecke, Ramesh Subramanian, James W. Rawlins, Eric J. Vidra
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Patent number: 6887965Abstract: The present invention relates to polythiophenes, particularly regioregular head-to-tail poly(3-alkylthiophenes) (HT-PATs), block copolymers made therefrom, and their methods of formation. The present invention provides HT-PATs with well-defined, specific end-groups, functionalization of the defined HT-PATs, and incorporation of end group functionalized HT-PATs into block copolymers with structural polymers. The intrinsically conductive diblock and triblock copolymers, formed from the HT-PATs, have excellent conductivity and low polydispersities that are useful in a number of applications. The block copolymers of the present invention have been found to exhibit conductivities that range from a low of 10?8 S/cm for certain applications to as high as several hundred S/cm or more.Type: GrantFiled: August 4, 2003Date of Patent: May 3, 2005Assignee: Carnegie Mellon UniversityInventors: Richard D. McCullough, Jinsong Liu, Paul C. Ewbank, Elena E. Sheina
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Patent number: 6875837Abstract: The present invention provides a coated golf ball having good appearance, excellent durability after repeated hitting, excellent abrasion resistance after washing by brushing and excellent stain resistance with a grass. The present invention relates to a coated golf ball formed by applying a paint on the surface of a golf ball body, wherein the paint comprises polyol containing urethane polyol as a main material and polyisocyanate curing agent, and the curing agent comprises 25 to 35% by weight of isocyanurate polyisocyanate derived from hexamethylene diisocyanate, 25 to 35% by weight of biuret polyisocyanate derived from hexamethylene diisocyanate and 35 to 50% by weight of isocyanurate polyisocyanate derived from isophorone diisocyanate.Type: GrantFiled: August 29, 2003Date of Patent: April 5, 2005Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kazuhiko Isogawa, Seiichiro Endo
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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: 6872796Abstract: A sealing gasket for closure, made of a polyurethane elastomer obtained by reacting the following (A) and (B): (A) a polyisocyanate component having an isocyanate group content of 5 to 38% by weight and average 2 to 3 functional groups, obtained by modifying an aliphatic isocyanate and/or an alicyclic isocyanate, and (B) a polyol component having a hydroxyl value of 20 to 350 mgKOH/g and average 2 to 3 functional groups; and a process for producing a closure using such a sealing gasket. The closure sealing gasket made of a polyurethane elastomer, obtained by the present invention, when used for a closure (e.g. a metal closure of food container), causes no yellowing by ultraviolet light, has a strength at least equal to those of sealing gaskets produced from an aromatic isocyanate.Type: GrantFiled: October 15, 2001Date of Patent: March 29, 2005Assignees: Toyo Seikan Kaisha, Ltd., Nippon Polyurethane Industry Co, Ltd.Inventors: Toshinori Moriga, Hiroei Yokota, Toshihiko Tsuchida, Noriyoshi Yano
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Patent number: 6855779Abstract: A low VOC clear coat composition which comprises an epoxy compound, a melamine component and an aliphatic polyisocyanate having an average of 2 to 6 isocyanate functionalities, and optionally contains a catalyst (e.g., organotin catalysts, acid catalysts and combinations); a polyhydroxyl functional compound (e.g., polycarbonate polyol); or other additives (e.g., light absorbers and light stabilizers). Also disclosed is an article coated with the clear coat composition, a process of making the composition, and a process of applying the composition to, for example, an automobile body.Type: GrantFiled: March 16, 2000Date of Patent: February 15, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Isao Nagata, Peter William Uhlianuk, Donald A. White
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Patent number: 6852831Abstract: The present invention relates to alkylenedioxythiophenes of the formula I having urethane-containing side groups: to their preparation and to their oligo- and polymeric derivatives (oligo- and poly(alkylenedioxythiophene)s).Type: GrantFiled: April 8, 2003Date of Patent: February 8, 2005Assignee: Bayer AktiengesellschaftInventor: Knud Reuter
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Patent number: 6849705Abstract: A polyaddition compound having uretdione and carboxyl groups, and having a melting range of between 40 and 200° C., a free NCO group content of from 0 to 5% by weight and an NCO functionality of at least 1.5, and a number-average molar mass of between 1000 and 10,000, may be prepared by reacting at least one polyisocyanate containing uretdione groups, at least one hydroxycarboxylic or mercaptocarboxylic acid, and one or more of at least one monofunctional compound having a functional group which is reactive toward an isocyanate, at least one aliphatic and/or cycloaliphatic polyol, at least one polyol having functional groups, and at least one aliphatic and/or cycloaliphatic polyamine. Polyurethane plastics, especially polyurethane powder coating materials may be prepared from the polyaddition compound of the present invention.Type: GrantFiled: May 12, 2003Date of Patent: February 1, 2005Assignee: Degussa AGInventor: Andreas Wenning
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Patent number: 6846849Abstract: An embodiment of the present invention includes a foam prepared from a resin comprising: one or more saccharides; one or more isocyanates; one or more resin polyols; and water. The foam may be for example polyurethane foam or polycyanurate foam, either flexible or rigid. Another embodiment includes a method for preparing a foam comprising: forming a resin by mixing one or more saccharides with one or more isocyanates and then mixing the one or more saccharides and the one or more isocyanates with water; and admixing one or more foam polyols to the resin. Another embodiment includes a method for manufacturing a foam derived from an isocyanate, comprising replacing all or a portion of the isocyanate with a resin comprising: one or more saccharides; one or more isocyanates; one or more resin polyols; and water. Another embodiment includes an article of manufacture comprising such foam.Type: GrantFiled: January 15, 2003Date of Patent: January 25, 2005Assignee: Temple-Inland Forest Products CorporationInventor: Charles L. Capps
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Patent number: 6822042Abstract: A novel resin for binding composite lignocellulosic, cellulosic and non-cellulosic products is disclosed. The resin is comprised of one or more isocyanates, one or more saccharides, one or more polyols, and water. Preferaby, the saccharide is a polysaccharide comprised of corn syrup. Preferably, the isocyanate is a polyisocyanate and the polyol is an ethylene glycol. Also disclosed are methods for preparing and applying the resin as well as the products prepared from the resin.Type: GrantFiled: October 24, 2002Date of Patent: November 23, 2004Assignee: Temple-Inland Forest Products CorporationInventor: Charles L. Capps
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Patent number: 6818725Abstract: The invention relates to dental materials which contain an iminooxadiazine dione derivative with at least two free isocyanate groups and a hydroxyl compound with at least two OH groups.Type: GrantFiled: February 10, 2003Date of Patent: November 16, 2004Assignee: Ivoclar Vivadent AGInventors: Martin Klare, Andreas Radl, Volker Rheinberger
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Patent number: 6812315Abstract: Disclosed is an oxazolidine compound represented by the following formula (1). [R1 represents a hydrocarbon group having 1 to 6 carbon atoms; R2 and R3 independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R2 and R3 combine to form an alicyclic ring or an aromatic ring; R4 and R5 independently represent a methyl group or an ethyl group; R6 represents a single bond or —(R7—NHCOO—R8—OCONH)p—, R7 and R8 independently represent a divalent organic group, and p represents an integer of 1 to 15; m represents 2 or 3; n represents an integer of 1 to 3]. A curable resin composition using the oxazolidine compound as a latent curing agent have excellent curability and excellent storage stability, in particular, excellent storage stability in a state where the resin composition contains only the curable ingredient(s) and the latent curing agent.Type: GrantFiled: March 4, 2003Date of Patent: November 2, 2004Assignee: The Yokohama Rubber Co., Ltd.Inventor: Kazuo Suga
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Patent number: 6806340Abstract: Polyurethane coatings which are the reaction product of A) an aliphatic, isocyanate-containing prepolymer having an isocyanate content of 1-8 wt. % and a free monomeric diisocyanate content of less than 2 wt. %, and containing 0.1 to 1.5 moles of per 1000 g of prepolymer of aliphatically bound uretdione and oxadiazinetrione groups, and B) a polyol component B) comprising at least 50 equivalent % of a compound corresponding to the formula HO—X—Y—X—OH where Y represents methylene, ethylene, —C≡C—, cyclohexylene-1,4, -1,3, -1,2, or phenylene-1,4, -1,3, -1,2 and X represents methylene, —OCH2CH2— (the oxygen being bound to the Y), or cyclohexylene-1,4, -1,3, -1,2, and where the equivalent ratio of the free NCO groups to isocyanate-reactive groups is 0.90 to 1.5. The coatings are applied to flexible substrates such as textile or leather by the casting or knife coating process by means of reactive compositions.Type: GrantFiled: August 27, 2002Date of Patent: October 19, 2004Assignee: Bayer AktiengesellschaftInventors: Stefan Groth, Detlef-Ingo Schütze
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Publication number: 20040197481Abstract: The present invention provides a urethane prepolymer and method of making said prepolymer useful in forming a moisture curable coating on an object. The prepolymer of the present invention is made by the process comprising reacting a HDI-uretidione with a polyol such that a moisture-curable urethane prepolymer having a viscosity at 25° C. less than about 3000 cP is formed. Moreover, the HDI-uretidione and the polyol are of sufficient amounts that the reaction index is at least about 2. The present invention also provides a method of coating a substrate with the prepolymer of the present invention.Type: ApplicationFiled: April 2, 2003Publication date: October 7, 2004Inventors: Peter J. Whitman, Daniel B. Pourreau, Michael J. Morgan, Stephen L. Goldstein
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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: 6797800Abstract: The invention relates to a method of preparing a polyisocyanate with at least one uretdione group by oligomerizing part of the isocyanate groups of isophorone diisocyanate in the presence of a catalyst which accelerates the dimerization of isocyanate groups, wherein the oligomerization catalyst comprises a saline compound comprising from 10 to 100 wt. % of 1,2,3- and/or 1,2,4-triazolate structures (calculated as C2N3; molecular weight=66) in the anion, and the products prepared by this method.Type: GrantFiled: May 13, 2002Date of Patent: September 28, 2004Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Laas, Reinhard Halpaap, Frank Richter, Jürgen Köcher
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Publication number: 20040147708Abstract: The composition for optical materials of the present invention comprises a compound having in one molecule at least one structure represented by the following formula (1): 1Type: ApplicationFiled: May 12, 2003Publication date: July 29, 2004Inventors: Yuichi Yoshimura, Motoharu Takeuchi, Kazumoto Nakagawa
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Patent number: 6756464Abstract: The invention relates to a primer containing a solvent-containing two-component polyurethane binder comprising I) a curing component (A), comprising an addition product of at least one organic polyisocyanate (B) with an average NCO functionality of 2.5 to 5.0 and an isocyanate content of 8 to 27 wt. % and an alkoxysilane (C) of formula (I) with at least one isocyanate-reactive group, Q—Z—SiXaY3−a (I), in which Q represents an isocyanate-reactive group, Z represents a linear or branched C1-C12 alkylene group, X represents a hydrolyzable group, Y represents identical or different C1-C4 alkyl groups and a is an integer from 1 to 3, and II) a lacquer resin (D) which can react with isocyanate groups as adhesion promoter.Type: GrantFiled: January 22, 2002Date of Patent: June 29, 2004Assignee: Bayer AktiengesellschaftInventors: Steffen Hofacker, Markus Mechtel, Wieland Hovestadt, Claus Kobusch
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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: 6756072Abstract: Multicomponent coating materials, adhesives and sealing compounds comprising a (meth)acrylate (A) containing, based on (A), up to 90% by weight of hydroxyl-containing monomers in copolymerized form, of which (a1) from 20-90% by weight, based on (A), are 4-hydroxybutyl (meth)acrylate and/or 2-alkylpropane-1,3-diol mono(meth)acrylate, and (a2) from 0-40% by weight based on (A), are other hydroxyl-containing monomers; and (B) an adduct preparable from (b1) a diisocyanate, and (b2) a compound of the general formula I having an isocyanate-reactive group: wherein R1 and R2 are hydrogen or alkyl radicals, X and Y are oxygen, sulfur or >N—R6 where R6 is alkyl radical or aryl radical, R3 is alkylene radical and R4 and R5 are hydrogen, isocyanate-reactive groups or radicals R6; where R4, R5 or R6 contains an isocyanate-reactive group or R4 or R5 is an isocyanate-reactive functional group, and where R4, R5 or R6, where present, contain no isocyanate-reactive groups and the molar ratio of isocyType: GrantFiled: October 4, 2002Date of Patent: June 29, 2004Assignee: BASF Coatings AGInventors: Hubert Baumgart, Heinz-Peter Rink, Simone Jurczik, Edeltraud Hagemeister
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Patent number: 6753386Abstract: The present invention relates to a film forming composition, a method of forming the composition, and application of the composition to coating formulations which provide a cured coating having acid rain resistance. A film-forming polyurethane polyol composition comprises a reaction product of an n-functional isocyanate (wherein n is a number ranging from about 2 to about 5) with at least one diol or triol or mixtures thereof and a compound containing isocyanate-reactive functional groups, preferably a monofunctional alcohol or thiol. The low viscosity polyurethane polyol of the present invention is typically crosslinked/cured using a melamine to produce a cured coating which is highly acid etch resistant as well as having other desirable physical-mechanical properties. The coating compositions have improved flow characteristics compared to compositions containing polyurethane polyols prepared without the monofunctional alcohols or thiols.Type: GrantFiled: December 16, 1997Date of Patent: June 22, 2004Assignee: Akzo Nobel N.V.Inventors: Alexander Leo Yahkind, Ian Wagstaff, Frederick Herbert Walker
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Publication number: 20040110918Abstract: The present invention relates to a process for producing uretdione group-containing polyaddition products, which are solid below 40° C. and liquid above 125° C.Type: ApplicationFiled: December 1, 2003Publication date: June 10, 2004Inventors: Hans-Josef Laas, Oswald Wilmes, Hans-Ulrich Meier-Westhues, Martin Ullrich, Konrad Fischer, Ulrich Freudenberg
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Publication number: 20040110915Abstract: The invention relates to polyisocyanates which contain uretdione groups, have a particularly low monomer content and are stable towards redissociation and also to their use.Type: ApplicationFiled: December 3, 2003Publication date: June 10, 2004Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking
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Patent number: 6743886Abstract: Plastic lenses for spectacles having a high refractive index and a high Abbe's number, and having good transparency, heat resistance, mechanical strength and impact resistance are produced. Plastic lenses for spectacles are produced through polymerization of an epithio group-having compound (a), a polythiol compound (b) and a polyisocyanate compound (c) whereby the ratio (by mol) of the polythiol compound (b) to the polyisocyanate compound (c) is at least 1.2 calculated on the basis of —SH and —NCO groups. The invention also provides a process for preparing such lenses and a catalyst for use in said process.Type: GrantFiled: March 15, 2001Date of Patent: June 1, 2004Assignee: HOYA CorporationInventor: Masahisa Kosaka
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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: 6730405Abstract: This invention relates to a polyisocyanate composition having a mean functionality of greater than 3, obtained by polycondensation of diisocyanate or triisocyanate monomers. The invention also relates to a reactive coating composition comprising the isocyanate composition defined above and a polyol having a hydroxyl number of between approximately 50 and approximately 250 and a number [lacuna] molar mass of between approximately 500 and approximately 15 000, said coating composition exhibiting a good pot life and a rapid rate of crosslinking at ambient temperature, to produce a crosslinked coating possessing good properties of surface hardness, of flexibility and of impact resistance.Type: GrantFiled: March 27, 2002Date of Patent: May 4, 2004Assignee: Rhodia ChimieInventors: Jean-Marie Bernard, Ming J. Chen, Qiwen Han
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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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Publication number: 20040073046Abstract: Modified stable polyisocyanates are described having at least one isocyanate function modified by a group having cross-linking functionality.Type: ApplicationFiled: June 30, 2003Publication date: April 15, 2004Applicant: RHODIA CHIMIEInventor: Jean-Marie Bernard
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Publication number: 20040068081Abstract: The present invention concerns a process for producing low-viscosity polyisocyanates or secondary products thereof, which carry activated, radiation-curable double bonds and can optionally also cure thermally, and low-viscosity polyisocyanate mixtures or secondary products thereof and their use in coating compounds.Type: ApplicationFiled: September 29, 2003Publication date: April 8, 2004Inventors: Thomas Facke, Jan Weikard, Wolfgang Fischer