Organic Nh, =nh, Or Hnh Nitrogen-containing Reactant Contains A Heterocyclic Ring Patents (Class 528/62)
  • Patent number: 11981825
    Abstract: Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) in combination with toughening agents for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: May 14, 2024
    Assignee: Stratasys Ltd.
    Inventors: Yuval Vidavsky, Lev Kuno
  • Patent number: 11001725
    Abstract: Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) in combination with toughening agents for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.
    Type: Grant
    Filed: February 5, 2017
    Date of Patent: May 11, 2021
    Assignee: Stratasys Ltd.
    Inventors: Yuval Vidavsky, Ira Yudovin-Farber, Asher Razlan, Lev Kuno, Eynat Matzner
  • Patent number: 9976051
    Abstract: There is provided a polymer composition comprising a first polymer phase and a second polymer phase, wherein: a) the first polymer phase comprises a thermoplastic polymer matrix modified with an adhesive functional group or a group which is a precursor of an adhesive functional group; and b) the second polymer phase comprises a thermoplastic polymer capable of acting as a self-healing agent and being chemically reactive on healing of the polymer composition.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 22, 2018
    Assignee: Petroliam Nasional Berhad (Petronas)
    Inventors: M. Shamsul Farid Samsudin, M. Azizol A. Wahab, Kok Hoong Leong, Zulkifli Ahamid, Russell John Varley, Carmelo Dell'olio, Stuart Arthur Bateman, Qiang Yuan
  • Patent number: 9000089
    Abstract: Polyurea systems comprising: (a) an amino-functional aspartic ester of the general formula (I) wherein X represents an n-valent organic radical derived from a corresponding n-functional primary amine X(NH2)n, R1 and R2 each independently represent an organic radical having no Zerevitinov active hydrogens and n represents an integer of at least 2; and (b) an isocyanate functional prepolymer having a residual monomer content of less than 1% by weight, the prepolymer prepared by reacting: (b1) an aliphatic isocyante; and (b2) a polyol component having a number average molecular weight of ?400 g/mol and an average OH functionality of 2 to 6, wherein the polyol component comprises one or more constituents selected from the group consisting of polyester polyols, polyester-polyether polyols and mixtures thereof; processes for making the same; postoperative adhesions barriers prepared therewith and dispensing systems for such polyurea systems.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: April 7, 2015
    Assignee: Medical Adhesive Revolution GmbH
    Inventors: Heike Heckroth, Hartmut Nefzger, Christian Wamprecht
  • Patent number: 8946373
    Abstract: The invention relates to a polyurea preparable from a) a component A comprising a1) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), obtainable from at least one polyetherpolyol 1 (PEP 1) and at least one amine 1, where PEP 1 has an equivalent weight of ?500, a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), obtainable from at least one polyetherpolyol 2 (PEP 2) and at least one amine 2, where PEP 2 has an equivalent weight of >500, a3) 5 to 30% by weight of at least one amine chain extender and b) a component B, which is a prepolymer, obtainable from b1) at least one polyetherpolyol (PEP 3) and b2) at least one isocyanate.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Berend Eling, Stephan Göttke, Ben Buylinckx, Wolfgang Mägerlein
  • Patent number: 8802770
    Abstract: The present invention discloses a semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a hydrophobic polyol, (2) a polyisocyanate, and (3) a linear chain extender containing 5 carbon atoms or 7 to 12 carbon atoms; wherein the hydrophobic polyol has a number average molecular weight which is within the range of about 1,000 to about 4,000; wherein the semicrystalline, thermoplastic polyurethane has a weight average molecular weight which is within the range of 50,000 to 1,000,000; and wherein the semicrystalline, thermoplastic polyurethane has a melting point which is within the range of 80° C. to 150° C. This hydrophobic thermoplastic polyurethane offers a unique array of characteristics that are highly desirable for utilization in manufacturing a variety of products. For instance, it can be used in overmolding soft grips onto consumer products, in adhesives, and in protective coatings.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 12, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Donald A. Meltzer, Jacques P. E. J. Horrion
  • Patent number: 8790488
    Abstract: Biocompatible macromer compositions are provided including an isocyanate-functional polyalkylene oxide combined with at least one multi-functional isocyanate as a first component, and a multi-amino functional compound possessing multiple primary amines as a second component. The isocyanate-functional polyalkylene oxide has pendant polyalkylene oxide groups. The resulting biocompatible macromer composition can be employed as an adhesive or sealant for medical/surgical uses.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: July 29, 2014
    Assignee: Covidien LP
    Inventors: Ahmad R. Hadba, Nadya Belcheva
  • Patent number: 8691930
    Abstract: A polymer represented by Formula 1 below: wherein functional groups and n are defined as in the specification.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Yong Lee, Hee-Yeon Kim, Seung-Gak Yang, Yoon-Hyun Kwak, Jeoung-In Yi
  • Patent number: 8604147
    Abstract: A porphyrin copolymer containing quinoxaline unit, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein R1, R2, R3, R4 are selected from C1˜C32 alkyl groups, and n is an integer between 1 and 100. The copolymer is useful in the fields of solar battery and the like.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 10, 2013
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Jie Huang, Yijin Liu
  • Patent number: 8598302
    Abstract: A perylenetetracarboxylic acid diimide organic semiconductive material is represented by the following formula (I), which belongs to the field of photoelectric material. In formula (I), n is an integer of 1-100, R1, R2 or R3 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl, phenyl or alkoxyphenyl, R4 or R5 is C1-C20 alkyl, R6 or R7 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl or phenyl.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 3, 2013
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Jie Huang, Rong Guan
  • Patent number: 8546512
    Abstract: A copolymer containing fluorenylporphyrin-benzene is disclosed, which comprises a copolymer represented by formula (1), in which R1, R2, R3 and R4, which may be identical or different, are C1-C16 alkyl, and n is an integer of 1 to 100. The preparation method of said copolymer containing fluorenylporphyrin-benzene and the use thereof in manufacture of solar batteries components, organic field effect transistors, organic electroluminescent components, organic optical storage components, organic non-linear materials or organic laser components are also disclosed.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: October 1, 2013
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Jie Huang, Yijin Liu
  • Patent number: 8507637
    Abstract: A porphyrin copolymer containing thienothiadiazole units, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein: R1, R2, R3, R4 are same or different and each represents a C1-C32 alkyl; n is an integer of 1-100. The copolymer comprises fluorene units, thienothiadiazole units and porphyrin units, which enhance the density of electron cloud in copolymer skeleton, make the band-gap of the copolymer become narrow, thereby broaden the spectral response range of the copolymer, and improve the photoelectric transformation efficiency.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: August 13, 2013
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Jie Huang, Yijin Liu
  • Patent number: 8500947
    Abstract: The present disclosure provides compositions having reduced viscosity which may be used as adhesives or tissue sealants, and includes methods for speeding the cure rate of such compositions.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: August 6, 2013
    Assignee: Covidien LP
    Inventor: Ferass Abuzaina
  • Patent number: 8476397
    Abstract: A polymer compound comprising a residue of a compound represented by the following formula (0): wherein Ar0 represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group and the like, or a group represented by the following formula (A), at least two Ar0s are groups represented by the following formula (A), R0 represents a substituent such as an alkyl group, an alkoxy group, an aryl group and the like, l and m represent an integer of 0 to 3, wherein A0 represents —N? or —C(R2)?. R2 represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group and the like.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 2, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Satoshi Kobayashi
  • Patent number: 8288504
    Abstract: The present invention is directed to a method for preparing a cyclic guanidine comprising reacting (i) a cyanamide, (ii) a polyamine, and (iii) a weak acid. The present invention is also directed to a coating composition comprising the cyclic guanidine.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 16, 2012
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Steven R. Zawacky, Charles R. Hickenboth, Richard F. Karabin, Gregory J. McCollum, Thomas C. Moriarity
  • Patent number: 8268952
    Abstract: The invention relates to supramolecular ionomers. i.e. polymers having quadruple hydrogen bonding units (4H-units) and ionic groups or ionogenic groups within their structure. The supramolecular ionomers can be dispersed or solubilized in water at high solids contents while maintaining low viscosities, facilitating easy use and processing of the resulting aqueous formulations. The aqueous supramolecular ionomer compositions have excellent film-forming properties. Moreover, the polymer materials have good mechanical properties after drying, as they are not tacky, show high elasticity and low or no creep.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: September 18, 2012
    Assignee: Suprapolix B.V.
    Inventors: Gaby Maria Leonarda Van Gemert, Ronny Mathieu Versteegen, Henricus Marie Janssen, Egbert Willem Meijer, Anton Willem Bosman
  • Patent number: 8188208
    Abstract: This invention relates to solid elastomers which exhibit reduced dimensional shrinkage, and to a process for the production of these elastomers. These elastomers comprise the reaction product of a polyisocyanate component or prepolymer, with an isocyanate-reactive component comprising a high molecular weight component having an EO cap having less than 17% by wt., a chain extender and optionally, a crosslinker, in the presence of at least one catalysts. These solid elastomers are produced via the reaction injection molding process in a closed mold, preferably at an isocyanate index of about 70 to about 130.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: May 29, 2012
    Assignee: Bayer MaterialScience LLC
    Inventors: Stephen J. Harasin, William D. Keller, Jr.
  • Patent number: 8178205
    Abstract: A multilayer polyurethane or polyurea erosion resistant coating with a matte topcoat over a primer layer and filled basecoat layer used to protect the leading edge against high speed liquid or solid particle erosion for helicopter rotor blades, propellers and other articles using polyurethane or polyurea compositions.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: May 15, 2012
    Assignee: Hontek Corporation
    Inventor: Shek C. Hong
  • Patent number: 8124235
    Abstract: A method of forming a matte topcoat for rotor blades, propellers and other articles used to protect a leading edge substrate against high speed liquid or solid particle erosion including premixing a concentrate of flatting agent dispersed in a solvent, reducing the moisture content using molecular sieves, blending the concentrate of flatting agent into a polyurethane or polyurea composition and forming a protective coating comprising a matte layer on the leading edge substrate.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: February 28, 2012
    Assignee: Hontek Corporation
    Inventor: Shek C. Hong
  • Patent number: 8076518
    Abstract: This invention provides chain extender compositions. These compositions comprise (i) an aliphatic secondary diamine, and (ii) a component selected from the group consisting of: (a) a cycloaliphatic primary diamine; (b) an aliphatic secondary diamine; (c) an aliphatic secondary diamine and an aliphatic primary diamine; (d) an aliphatic diimine; and (e) a combination of any two or more of (a) through (d), with the proviso that when (ii) is (a), (i) is a noncyclic aliphatic secondary diamine. Processes for producing polyurethanes, polyureas, and polyurea-urethanes are also provided.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: December 13, 2011
    Assignee: Albemarle Corporation
    Inventors: Paul L. Wiggins, John Y. Lee, Judit Orgad, David W. Owens
  • Patent number: 8048979
    Abstract: The present invention involves the design of a radiation curable organic pre polymer resin material based on urethane acrylic linkage synthesized from the natural renewable resource cardanol or a derivative thereof, for coating application. These new molecules have a faster and better curing rate compared to the starting renewable resource—cardanol. This is brought about by the hydrogen bonding of the urethane linkage which leads to a pre organization of the molecules in such a way as to bring the cross linkable double bonds closer to each other. The present invention also involves a UV curable formulation of the above mentioned resins along with 2-10 parts by weight of a photopolymerization initiator. The resin, either in a formulation or alone turns into a cross linked film upon photopolymerization in presence of photoinitiator under a UV curable radiation source like a mercury vapor pressure lamp.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: November 1, 2011
    Assignee: Council of Scientific and Industrial Research
    Inventors: Asha Syamakumari, Chennakkattu Krishna Sadasivan Pillai
  • Patent number: 7893158
    Abstract: Block poly(trimethylene-ethylene ether) glycols are disclosed. The block poly(trimethylene-ethylene ether) glycols can be prepared by the polycondensation of 1,3-propanediol reactant and polyethylene glycol reactant. The block poly(trimethylene-ethylene ether) glycols can be used in breathable membranes, synthetic lubricants, hydraulic fluids, cutting oils, motor oils, surfactants, spin-finishes, water-borne coatings, laminates, adhesives, packaging, films and foams, fibers and fabrics.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: February 22, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Hiep Quang Do
  • Patent number: 7868122
    Abstract: Compositions and methods of making urethane based nonionic associative thickeners are described herein. Uses of the nonionic associative thickeners are also described.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: January 11, 2011
    Assignee: Southern Clay Products, Inc.
    Inventors: Alan L. Steinmetz, Shakti L. Mukerjee
  • Publication number: 20100204356
    Abstract: A high-elasticity biodegradable polymer comprising PDC, which has excellent solubility in solvents and reactants, in their repeating unit structures is provided in an inexpensive manner. A polymer comprising a repeating unit represented by the following formula (I): wherein R1 and R2 each independently represent a divalent hydrocarbon residue with no active hydrogens in its structure and optionally containing a heteroatom; X represents O or NH; x represents an integer of at least 1; and m and n represent 0 or 1; and a process for their production.
    Type: Application
    Filed: September 4, 2008
    Publication date: August 12, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Yamamoto, Osamu Ohmori, Hitotoshi Murase, Hiroaki Takashima, Kohei Mase, Tomokuni Abe, Toshihisa Shimo
  • Publication number: 20100108260
    Abstract: Two-component adhesive for bonding wood materials, comprising an isocyanate-containing component A and an amine-containing component B, component A comprising an isocyanate-terminated prepolymer having an isocyanate functionality of ?1.7, preferably of 1.7<fNC0<3, more preferably in the range from 2 to 3; and component B comprising at least one diamine and/or polyamine, preferably a polyetherdiamine and/or polyether-polyamine. An adhesive of this kind permits not only surprisingly advantageous properties on the part of the resulting bond but also bonds which can be accomplished very rapidly.
    Type: Application
    Filed: February 5, 2008
    Publication date: May 6, 2010
    Applicant: NOLAX AG
    Inventors: Alfred Rasche, Catherine Baron, Fabian Leuthard, Damien Ferrand, Karl Huber, Adrian Schulthess
  • Publication number: 20100063239
    Abstract: A polyimide resin represented by the following general formula (I): wherein, R1 represents a divalent organic group having an aromatic ring or an aliphatic ring; R2 represents a divalent organic group having a weight average molecular weight of 100 to 10,000; R3 represents a divalent organic group having an aromatic ring, an aliphatic ring or an aliphatic chain; R4 represents a tetravalent organic group having 4 or more carbon atoms; n represents an integer of 1 to 100; m represents an integer of 2 to 100; and x represents an integer of 1 to 50. The polyimide resin has excellent pliability and flexibility while retaining strength and thermal resistance.
    Type: Application
    Filed: October 11, 2007
    Publication date: March 11, 2010
    Applicants: NITTA CORPORATION
    Inventors: Shinichi Inoue, Tomohiro Nishio, Kiyotaka Inoue
  • Patent number: 7576143
    Abstract: A polyurethane acrylate (A), comprises, as synthesis components, (a) at least one polyisocyanate which comprises isocyanurate groups, based on 1-isocyanato-3,3,5-trimethyl-5-(isocyanatomethyl)cyclohexane, (b) at least one polyisocyanate which comprises isocyanurate groups, based on hexamethylene diisocyanate, (c) at least one aliphatic and/or cycloaliphatic diisocyanate, (d1) at least one polyetherdiol or polyesterdiol having a molecular weight ranging from 500 to 2000, (d2) optionally, at least one diol having a molecular weight of less than 220 g/mol, (e) at least one compound having at least one group reactive toward isocyanate and at least one unsaturated group capable of free radical polymerization, and (f) optionally, at least one compound having exactly one group reactive toward isocyanate.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: August 18, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Erich Beck, Klaus Menzel
  • Patent number: 7157545
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hydroxyl groups and/or amine groups. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 2, 2007
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Shawn Ricci
  • Patent number: 6989431
    Abstract: A golf ball comprising a core and a cover, wherein the core or the cover comprises a thermoplastic or thermoset composition comprising a polyurea prepolymer formed from a reactant A comprising an isocyanate; and a reactant B comprising a polyether polyamine having a repeating branched oxyalkylene monomer unit, or a polymerized polyamine formed from a chiral diol or a chiral cyclic ether.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: January 24, 2006
    Assignee: Acushnet Company
    Inventors: Murali Rajagopalan, Shenshen Wu
  • Patent number: 6984708
    Abstract: The invention provides spandex having improved hysteresis and a method for making such spandex. The spandex of the invention comprises the polyurethaneurea reaction product of: (a) poly(tetramethylene ether) glycol (b) 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene wherein the mole ratio of diisocyanate to glycol is from about 1.52 to about 2.04; and (c) a mixture of chain extenders comprising: from about 35 to about 55 mole percent ethylene diamine; and from about 45 to about 65 mole percent 1,2-propanediamine.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: January 10, 2006
    Assignee: Invista North America S.a.r.l.
    Inventors: Hong Liu, Gregory L. Yoder, Robert O. Waldbauer, Jr.
  • Patent number: 6962744
    Abstract: A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3), (wherein —X— is represented by the formula (2?), and Y—O— is represented by the formula (3), R2, R3, R4, R8, R9, R10 and R11 in the formula (2?) and the formula (3?) being required not to be a hydrogen atom, and its use.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: November 8, 2005
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akikazu Amagai, Kenzi Ishii, Kiyonari Hiramatsu, Makoto Miyamoto, Daisuke Ohno, Katsutoshi Yamazaki, Yasumasa Norisue
  • Patent number: 6946539
    Abstract: Polyurethane or polyurethane-urea is comprised of poly(trimethylene-ethylene ether) glycol as a soft segment. The polyurethane or polyurethane-urea preferably comprises about 10 to about 90% soft segment and is prepared from: (a) poly(trimethylene-ethylene ether) glycol (b) diisocyanate; and (c) diol or diamine chain extender. The composition is particularly useful for making shaped articles.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: September 20, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Hari Babu Sunkara
  • Patent number: 6777524
    Abstract: Disclosed is a polyether polyurethane comprising (A) at least one polyisocyanate having two or more isocyanate groups, which is selected from the group consisting of an aromatic polyisocyanate and an aliphatic polyisocyanate; (B) a polyoxytetramethylene glycol (PTMG) having a number average molecular weight of from 500 to 4,000, a molecular weight distribution (Mw/Mn) of 1.75 or less, and a content of high molecular weight PTMG molecules of 10% by weight or less; and (C) at least one chain extender selected from the group consisting of a C2-C10 polyol having two or more hydroxyl groups and a C2-C10 polyamine having two or more amino groups. Also disclosed is a urethane prepolymer which comprises the above-mentioned components (A) and (B) and which has terminal isocyanate groups.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: August 17, 2004
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Atsushi Shimizu, Mutsuhisa Furukawa, Kiyoo Kato, Yoshiyuki Asahina
  • Publication number: 20040087755
    Abstract: A polymer having the following general formula: 1
    Type: Application
    Filed: May 23, 2003
    Publication date: May 6, 2004
    Inventors: Berend Eling, Christopher Ian Lindsay
  • Patent number: 6723821
    Abstract: The invention features a polyamine epoxide adduct, prepared by admixing a source of epoxy group with a polyamine, and allowing the epoxy groups to react with the terminal amino groups of the polyamine so as to form the polyamine epoxy adduct. The polyamine epoxide adduct of the invention can be used as a component for preparing a polyurea polymer, thereby providing the resulting polyurea polymer with improved adhesiveness and greater chemical resistance to acidic conditions. Polyurea polymer coatings prepared from polyamine epoxide adducts demonstrate better chemical resistance and adhesion when applied to substrates than do conventionally prepared polyurea formulations.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: April 20, 2004
    Assignee: Hehr, International Inc.
    Inventor: Stuart B. Smith
  • Patent number: 6613864
    Abstract: A polyurethane composition useful for the manufacture of an elastomeric part is provided. The polyurethane composition comprises a polyisocyanate prepolymer and an active hydrogen containing compound, wherein from about 10 to about 60 percent by weight of the composition is a butylene oxide adduct and from about 70 to about 100 percent of the butylene oxide adduct is present in the polyisocyanate prepolymer. A method for preparing a polyurethane polymer from the polyurethane composition is also provided. Also, a method for preparing a polyurethane article from the polyurethane composition is provided.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: September 2, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: James R. Porter, Allan James, Kenneth B. Arnold
  • Patent number: 6552155
    Abstract: The invention relates to polyaldimines of formula [1] and their use within moisture curable one part polyurea compositions. wherein j is an integer of 3 to 30 and R2 is unsubstituted homocyclic or heterocyclic aryl radical or alkyl, alkoxy, alkylthio or halogen substituted homocyclic or heterocyclic aryl radical.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: April 22, 2003
    Inventors: Arie Gutman, Gennadiy Nisnovich, Igor Zaltzman, Lev Judovich, Vladimir Kuznetsov
  • Patent number: 6531076
    Abstract: Described are photochromic organic resin compositions and the impact resistant polymerizates and coating compositions made therefrom. The organic resin composition comprises the reaction product of at least one polyol having greater than 1.0 hydroxyl groups; at least one polyisocyanate having greater than 1.0 isocyanato groups; and at least one polyamine curing agent having greater than 1.0 amino groups. The polymerizates are made photochromic either by the addition of organic photochromic compounds to the reactants used to form the polymerizate or by methods that imbibe or transfer the photochromic compounds into the polymerizate. Optically clear photochromic and impact resistant articles such as ophthalmic lenses and articles having photochromic coatings prepared from the photochromic organic resin compositions are also described.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: March 11, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John C. Crano, Carol L. Knox, Michael O. Okoroafor, Robert A. Smith, Rifat Tabakovic
  • Publication number: 20030032758
    Abstract: A golf ball comprising a core and a cover disposed concentrically about the core, wherein at least one of the core or the cover is formed of a polymer comprising thermally reversible covalent bonds. Additionally, a composition for sporting equipment formed of a polymer comprising thermally reversible covalent bonds.
    Type: Application
    Filed: August 28, 2002
    Publication date: February 13, 2003
    Inventors: Kevin M. Harris, Murali Rajagopalan
  • Patent number: 6489397
    Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: December 3, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann
  • Patent number: 6479611
    Abstract: Two types of aminotriazine-based crosslinking agents are provided. Crosslinking agent I includes the ungelled reaction product of (A) a reactive urethane group-containing reaction product and (B) an aminotriazine compound having one or less non-alkylated NH bond per triazine ring. The reactive urethane group-containing reaction product (A) is the reaction product of (1) a polyester polyol, and (2) a mono-isocyanate. The crosslinking agent I is essentially free of urethane NH functionality and has a glass transition temperature of at least 25° C. Crosslinking agent II includes the ungelled reaction product of (A) a reactive urethane group-containing reaction product and (B) an aminotriazine compound having one or less non-alkylated NH bond per triazine ring. The reactive urethane group-containing reaction product (A) is the reaction product of (1) a polyisocyanate and (2) a monohydric capping agent.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: November 12, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Ronald R. Ambrose, Anthony M. Chasser, Shengkui Hu, John R. Schneider, Jackie L. Smith
  • Patent number: 6353135
    Abstract: Aliphatic tetraketimine of the present invention are a novel class of compounds represented by the formula: wherein Et is ethyl, Me is methyl, and R is a residue of an aliphatic diisocyanate. The tetraketimine is made by condensing a novel ketimine with a diisocyanate. The ketimine has a free secondary amine after a polyamine selected from the group consisting of: H2N—C2H4—NH—C2H4—NH2, H2N—C2H4—NH—C2H4—NH—C2H4—NH2, H2N—(CH2)6—NH—(CH2)6—NH2, or tris(2-aminoethyl)amine is reacted with a ketone.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: March 5, 2002
    Assignee: The Boeing Company
    Inventor: Larry K. Olli
  • Patent number: 6262176
    Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: July 17, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann
  • Patent number: 6221998
    Abstract: An isocyanate-based one-part moisture curable composition having excellent storage stability and high curing rate, and use of this composition enables production of a cured product of high flexibility without using any plasticizer. The composition comprises (A) an isocyanate compound having a structure wherein all of the isocyanate (NCO) groups in the molecule have secondary or tertiary carbon bonded thereto, and (B) a ketimine having ketimine (C═N) bond derived from a ketone or an aldehyde and an amine having a structure wherein &agr;-position of at least one of the carbon or the nitrogen of the ketimine bond has a branched carbon atom or a ring member carbon atom bonded thereto. A urethane prepolymer having such structure is preferable for use as the isocyanate compound (A).
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: April 24, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hiroyuki Okuhira, Naoya Adachi
  • Patent number: 6174956
    Abstract: A polyurethane polymer and method of preparing it is described. The process requires the combination of a soluble polyol with a di- or polyisocyanate under densified fluid conditions. The process to prepare a waterborne polyurethane involves the utilization of a polyol containing ionic or latent ionic groups which must undergo preneutralization before combining with the di- or polyisocyanate under densified fluid conditions. The resulting polyurethane is substantially free of an organic solvent.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: January 16, 2001
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Judith Lynne Kerschner, Sharon Harriott Jureller, John Socrates Thomaides, Robert William Humphreys, Carmine Phillip Iovine
  • Patent number: 6136942
    Abstract: A one-component polyurethane composition is described that comprises a latent curing agent bonded to the prepolymer, from which curing agent aldehyde is liberated upon curing. Said aldehyde comprises two phenyl groups. By the specific design of the polyurethane composition, the application characteristics as well as the aging resistance of the cured polyurethane are improved.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: October 24, 2000
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventors: Ueli Pfenninger, Pierre-Andre Butikofer
  • Patent number: 6133398
    Abstract: The present invention is a one-part adhesive composition comprising:A) an isocyanate functional polyurethane prepolymer;B) a catalyst capable of catalyzing the reaction of isocyanate moieties with an isocyanate reactive compound;C) particles comprising a curing agent for an isocyanate functional. polyurethane prepolymer encapsulated within a coating material;wherein the prepolymer has a free isocyanate content of from about 0.8 to about 2.2 percent. In another embodiment the invention is a process for bonding two substrates together which comprises rupturing the encapsulated curing agent particles so as to contact the curing agent with the prepolymer in the adhesive composition, contacting the adhesive composition of the invention with at least one of the substrates and contacting the substrates together along the portion of the substrate(s) to which the adhesive has been applied before the adhesive applied cures and allowing the adhesive to cure and bond the substrates together.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: October 17, 2000
    Assignee: The Dow Chemical Company
    Inventors: Shailesh S. Bhat, Sidky D. Rizk, Dwight K. Hoffman
  • Patent number: RE37386
    Abstract: A two component type polyurethane adhesive is provided for fiberglass reinforced plastics which requires no cleaning, preparation or treatment of the surface, and the like. The curative component is a nitrogen-free liquid polyether or polyester in an amount such that in association with a urethane prepolymer component containing free NCO groups, the ratio of the free NCO groups in the prepolymer component to the OH groups in said curative component is at least 1.2 and desirably at least 1.35. Such high NCO/OH ratios have unexpectedly been found to provide good adhesion and especially good humidity adhesion and peel strength adhesion to fiberglass reinforced plastics or metal surfaces which are free from any surface treatment.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: September 18, 2001
    Inventors: Earl G. Melby, H. William Cocain
  • Patent number: RE39936
    Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: December 4, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann
  • Patent number: RE41615
    Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: August 31, 2010
    Assignee: BASF SE
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann