Polycarbamic Patents (Class 560/158)
  • Patent number: 6316505
    Abstract: Block copolymers containing a fluorinated hydrocarbon unit, a hydrocarbon unit, and a poly(oxyethylene) unit are useful in fluid formulations of pharmaceutical agents. A typical embodiment is: C11H23—CONHC2H4NHCO—C8F16—CONHC2H4NHCOO—(C2H4O)34—H.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Supratek Pharma, Inc.
    Inventors: Alexander V. Kabanov, Serguei V. Vinogradov
  • Publication number: 20010039325
    Abstract: Unique masked isocyanates well suited for formulation into a variety of coating compositions, for example paint powders, are prepared by condensing an isocyanate with a ring-hydroxylated aromatic compound bearing at least one substituent which comprises a carbonyl or nitrile functional group and the apparent melting point of which being at least 30° C.
    Type: Application
    Filed: October 29, 1997
    Publication date: November 8, 2001
    Inventors: PIERRE ARDAUD, JEAN-MARIE BERNARD
  • Patent number: 6313060
    Abstract: A resilient polyurethane foam produced by using a polyether polyol produced by reacting alkylene oxides with a polyhydroxy compound having at least 2 hydroxyl groups as an initiator in the presence of the catalyst for alkylene oxide ring-opening polymerization of the present invention, which is excellent in foam physical properties, vibration characteristics and molding properties.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: November 6, 2001
    Assignee: Asahi Glass Company, Limited
    Inventors: Kayoko Sugiyama, Hiroki Fukuda, Akio Horie, Hiroshi Wada
  • Patent number: 6310172
    Abstract: This invention relates to water-dispersible polyisocyanates obtained by reacting a) at least one bishydroxy-functional compound of the formula (I) HO—R1,—[O—CR2R3—O—R1]n—OH  (I)  wherein R1, R2, R3, and n are defined herein, with b) at least one polyisocyanate of the formula (II) Q[NCO]q  (II)  wherein Q and q are defined herein, and subsequently, in any order, with c) at least one monofunctional polyether alcohol of the formula (III) R4—[O—R5]m—O—H  (III)  wherein R4, R5, and m are defined herein, and optionally with d) at least one compound of the formula (IV) H—O—[R5—O]o—N+R6R7R8 X−  (IV)  wherein R5, R6, R7, R8, O, and X− are defined herein.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: October 30, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Jansen, Bernd Thiele, Thomas Roick
  • Publication number: 20010034429
    Abstract: Polyisocyanates of the formula (I) (polyisocyanate I),
    Type: Application
    Filed: January 26, 2001
    Publication date: October 25, 2001
    Applicant: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Hans Renz, Gunter Mohrhardt, Hubert Baumgart, Simone Bitter
  • Publication number: 20010027242
    Abstract: Low-monomer, NCO-containing prepolymers based on 1,4-diisocyanato-2,2,6-trimethylcyclohexane, a process for their preparation, and their use.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 4, 2001
    Applicant: Degussa AG
    Inventor: Emmanouil Spyrou
  • Patent number: 6284811
    Abstract: A polyester-polyol being liquid at 40° C. and having a viscosity of not more than 10,000 mPa·s at 60° C., prepared by polycondensation of an acid component including at least one phthalic acid component selected from phthalic anhydride and o-phthalic acid, and an aliphatic polybasic acid, with a polyhydric alcohol; a process for preparing a polyurethane foam including reacting a polyisocyanate component with a polyol component including the polyester-polyol; a process for preparing an isocyanate prepolymer from a polyisocyanate component and a polyol component including the polyester-polyol; and a process for preparing a polyurethane foam including reacting an isocyanate prepolymer prepared from a polyisocyanate component and a polyol component including the polyester-polyol, with a polyol component. The resulting polyurethane foam shows remarkably improved physical properties such as tensile strength and tear strength, while having low density, acceptable appearance and texture.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: September 4, 2001
    Assignee: Kao Corporation
    Inventors: Minoru Sawai, Makoto Okubo, Kenichi Miyamoto, Kazunari Takemura, Masahiro Mori
  • Patent number: 6274693
    Abstract: The present invention relates to coating materials with hydroxyl-containing polymers and di- and/or polyisocyanates, at least some of whose isocyanate groups are blocked with a mixture of from 30 to 85% by weight of one or more dialkyl malonates in which at least one of the ester radicals is an aliphatic, cycloaliphatic and/or araliphatic secondary alkyl radical having at least 3 carbon atoms and 70 to 15% by weight of at least one other dialkyl malonate. Preparation and the blocked polyisocyanates and coating materials and use of the coating materials is also provided.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: August 14, 2001
    Assignee: BASF Coatings AG
    Inventors: Ulrich Poth, Bärbel Wiatr
  • Patent number: 6262296
    Abstract: A polyisocyanate prepolymer with isocyanate group on terminal obtainable by reaction of (A) polyoxyalkylenepolyol, (B) polyhydric alcohol having a molecular weight of 90 to 250 and the number of hydroxyl group of 2 to 3 with branched alkyl group and/or cyclohexane ring and (C) organic polyisocyanate composed of bis(isocyanatemethyl)cyclohexane, wherein NCO group content in the polyisocyanate prepolymer is 8% by weight or above and urethane group content in the polyisocyanate prepolymer is 8% by weight or above and sum total of NCO group content and urethane group content is 16 to 30% by weight and a concentration of unreacted (C) organic polyisocyanate remained in the polyisocyanate prepolymer is 1% by weight or below.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: July 17, 2001
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takeshi Nomura, Takeshi Koyama, Yutaka Kono
  • Publication number: 20010007900
    Abstract: Amine-terminated urethane oligomer compositions are described that include very high oligomer concentrations. The compositions are melts of the amine-terminated oligomers. The compositions can include one or more property modifiers. The compositions are useful in the formation of crosslinked copolymers, especially with epoxy resins. The resulting copolymers are useful in the formation of coatings.
    Type: Application
    Filed: February 26, 2001
    Publication date: July 12, 2001
    Inventors: Joseph S. Keute, Anne-Marie Thunnissen, Robert J. Tweedy
  • Patent number: 6258976
    Abstract: Disclosed are processes for the preparation of compounds of the formula (I): H2N—(CH2)n—A—(CH2)m—NH2, or (II): H2N—(CH2)n—NH—C(═NR1)—NH—(CH2)m—NH2, wherein n and m are each independently an integer from 2 to 8; A is selected from the group consisting of —NR1—, —NR1—(CH2)r—NR1— and —NR1—(CH2)r—NR1—(CH2)z—NR1—, wherein r and z are an integer ranging from 2 to 8; and R1 is hydrogen or a protecting group having a carbonyl group.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: July 10, 2001
    Inventors: Francis Johnson, Ramesh C. Gupta
  • Patent number: 6258898
    Abstract: A crosslinking agent comprising one or more carbamate groups or groups convertible to carbamate and two or more polyfunctional amino moieties having the formula wherein L is selected from the group consisting of alkyl or aryl, cycloalkyl and alkylaryl having a carbon chain length between 1 and 6 carbon atoms and N is a polyfunctional amino moiety. L may also have additional bridging groups such as esters, ethers, ureas, or urethanes groups. Also included is a method of making the crosslinker, a coating composition containing the crosslinker and a method for coating a substrate with the composition.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: July 10, 2001
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Walter H. Ohrbom, Donald L. St. Aubin
  • Patent number: 6242530
    Abstract: The present invention relates to (cyclo)aliphatic polyisocyanates which have a content of blocked and unblocked isocyanate groups (calculated a NCO) of 5 to 25 wt. %, in which at least 95% of the isocyanate groups are present in a form blocked with blocking agents, and which also contain 0.1 to 5.0 wt. % of amines having a structural unit corresponding to formula (I) The present invention also relates to the use of the blocked polyisocyanates according to the invention as crosslinking agents for organic polyhydroxyl compounds in 1C-PUR stoving lacquers, especially for automotive clearcoats and coil coating lacquers.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: June 5, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eberhard König, Karl-Ludwig Noble, Theodor Engbert
  • Patent number: 6221116
    Abstract: Aminocarbamates of polyalkylphenoxyalkanols having the formula: wherein R is a polyalkyl group having an average molecular weight in the range of about 600 to 5,000; R1 and R2 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; and A is a polyamine moiety having at least one basic nitrogen atom, wherein the polyamine is connected to the carbonyl group through one of its nitrogen atoms to form a carbamate linkage. The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: April 24, 2001
    Assignee: Chevron Chemical Company
    Inventor: Richard E. Cherpeck
  • Patent number: 6218500
    Abstract: Amine-terminated urethane oligomer compositions are described that include very high oligomer concentrations. The compositions are melts of the amine-terminated oligomers. The compositions can include one or more property modifiers. The compositions are useful in the formation of crosslinked copolymers, especially with epoxy resins. The resulting copolymers are useful in the formation of coatings.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: April 17, 2001
    Assignee: Tennant Company
    Inventors: Joseph S. Keute, Anne-Marie Thunnissen, Robert J. Tweedy, Jr.
  • Patent number: 6166236
    Abstract: Novel monomers of the general formula ##STR1## where b is 0 or 1, a is 1, 2, 3 or 4, R.sup.2 is a monovalent alkyl radical and R is an organic radical. The novel monomers may be employed to produce novel copolymers useful as hydrogel, soft non-hydrogel and/or rigid gas permeable contact lens materials.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: December 26, 2000
    Assignee: Bausch & Lomb Incorporated
    Inventors: Ronald E. Bambury, David E. Seelye
  • Patent number: 6150542
    Abstract: The invention relates to agents preventing (the formation of) human malodor. In particular, the invention relates to the use of several classes of compounds which can act as such agents in cosmetic products, such as deodorants and antiperspirants. These compounds are normally odorless or nearly so, but upon contacting the skin as for example, in skin care compositions or in personal care compositions, they prevent malodor.The compounds under consideration are compounds of the formula:X--(Z).sub.n --CO--NH--CH--(COO--Y)--CH.sub.2 CH.sub.2 CONH.sub.2I.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: November 21, 2000
    Assignee: Givaudan Roure (International) SA
    Inventors: Gonzalo Acuna, Georg Frater, Peter Gygax
  • Patent number: 6150457
    Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6.The present invention also relates to one-component, thermoset coating compositions containing the compounds of formula I and a cross-linking component that is reactive with these compounds. Finally, the present invention relates coatings, sealants and adhesives prepared from these thermoset compositions.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: November 21, 2000
    Assignees: Bayer Corporation, Bayer Aktiengesellscaft
    Inventors: Sze-Ming Lee, Douglas A. Wicks, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson
  • Patent number: 6147163
    Abstract: A durability enhancing agent comprising the reaction product of an acrylic oligomer or acrylic polymer and an ultraviolet light absorbing compound, a hindered amine light stabilizer or mixture thereof, said durability enhancing agent further comprising more than one carbamate functional group, or group convertible to a carbamate group, and optionally, including other reactive functionality capable of undergoing a crosslinking reaction. Also included is a curable coating composition comprising the durability enhancing agent, a method for obtaining a coated substrate and the coated article obtained thereby.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: November 14, 2000
    Assignee: BASF Corporation
    Inventors: John E. Boisseau, Donald L. St. Aubin, Patricia K. Oberg, John W. Rehfuss
  • Patent number: 6143919
    Abstract: Polymerizable urethane acid compounds are provided. Preferred compounds additionally comprise a hydroxy functionality. These compounds are made by reaction of hydroxy functional acid compounds with isocyanates.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: November 7, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Byron Ciping Shen, Charles M. Leir, Amy M. DeVries
  • Patent number: 6133415
    Abstract: Polyurethane prepolymer which can be converted into a final product by reaction with a curative or chain extending agent is made by reacting polyisocyanate with polyol in the presence of an amount of an aliphatic hydrocarbon which is a solvent for the polyisocyanate but a non-solvent for the prepolymer. In order to minimize the formation of unwanted oligomers the polyisocyanate is present in stoichiometric excess with respect to the polyol and the amount of hydrocarbon solvent present in the reaction mixture is limited so that a single liquid phase is present in the mixture during most of the synthesis. Solvent containing dissolved isocyanate is then removed from the prepolymer by liquid phase separation. A portion of the solvent can be distilled from this isocyanate solution for use in liquid--liquid extraction of residual isocyanate from the prepolymer, and the remaining solution of isocyanate in hydrocarbon solvent can be used in prepolymer synthesis.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: October 17, 2000
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thomas John Markley, Lloyd Mahlon Robeson
  • Patent number: 6127341
    Abstract: Compounds of the general formula I ##STR1## compositions containing them, and their use for treating medical disorders resulting from a deficiency in growth hormone are described.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: October 3, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Thomas Kruse Hansen, Jesper Lau, Bernd Peschke, Michael Ankersen, Kjeld Madsen, Nils Langeland Johansen
  • Patent number: 6111048
    Abstract: Disclosed is a novel blocked polyisocyanate obtained by blocking the terminal isocyanate groups of a non-blocked polyisocyanate with a thermally dissociative blocking agent, wherein the non-blocked polyisocyanate is obtained by reacting at least one diisocyanate selected from the group consisting of an aliphatic diisocyanate and an alicyclic diisocyanate with a polyhydroxy compound having an average number of hydroxyl groups as many as 4.5 to 10, and removing substantially all unreacted diisocyanate monomers. A coating composition comprising the blocked polyisocyanate of the present invention as a curing agent and a polyol as a main agent not only has excellent curability even under low temperature conditions, but is also capable of forming a coating which has excellent impact resistance.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: August 29, 2000
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Yoshiyuki Asahina, Taketoshi Usui
  • Patent number: 6107286
    Abstract: Cationic lipids of general formula (I), wherein m is an integer from 2 to 6 inclusive; n is an integer from 1 to 9 inclusive, preferably 1-5, where, when n is 2-9, a single R grouping other than hydrogen is present in the general formula, and m has variable or identical values within the groupings (a) or --(CH.sub.2).sub.m ; R is a hydrogen atom or a radical of general formula (II), wherein X or X.sup.1, which are the same or different, are an oxygen atom, a methylene grouping --(CH.sub.2).sub.q -- where q is 0, 1, 2 or 3, or an amino grouping --NH-- or NR.sup.1 --, where R is a C.sub.1-4 alkyl grouping; Y and Y.sup.1, which are the same or different, are a hydrogen atom or an optionally substituted C.sub.1-4 alkyl radical, and p is 0-5; and R.sub.6 is a cholesterol derivative or an alkylamino grouping --NR.sub.1 R.sub.2, where R.sub.1 and R.sub.2 are, independently of each other, a straight or branched, saturated or unsaturated C.sub.12-22 aliphatic radical.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: August 22, 2000
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Gerardo Byk, Daniel Scherman, Catherine Dubertret
  • Patent number: 6100428
    Abstract: An improved method for guanylating amines is provided. Broadly, the amines are reacted with a guanylating agent in the presence of a nickel catalyst. Preferably, the nickel catalyst comprises nickel in the zero oxidation state. Suitable nickel(0) catalysts are derived from nickel-boride alloys, nickel-phosphide alloys, aluminum-nickel alloys, nickel on kieselguhr, and nickel on silica/alumina catalysts. Preferred guanylating agents are thioureas and isothioureas. In one embodiment, protecting groups are selectively attached to the guanylating agents to yield particular substituted guanidines. The preferred protecting groups are Boc groups, Cbz groups, and arylsulfonyl groups. The reactions are particularly well suited for guanylating primary and secondary amines. The methods of the invention can be carried out under ambient conditions to provide high yields of the corresponding guanidines, with the nickel catalyst being essentially completely recoverable for reuse.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: August 8, 2000
    Assignee: The University of Kansas
    Inventors: Laxminarayan Bhat, Gunda I. Georg
  • Patent number: 6080831
    Abstract: Cellulose-containing, optionally wood-containing materials which have been obtained using water-dispersible polyisocyanates which in turn have been prepared by reaction of the following starting components:a) modified polyisocyanates of the formula (I) ##STR1## in which: R.sup.1 denotes an aliphatic hydrocarbon radical having 2 to 18 carbon atoms; a cycloaliphatic hydrocarbon radical having 4 to 15 carbon atoms; an aromatic hydrocarbon radical having 6 to 15 carbon atoms or an araliphatic hydrocarbon radical having 8 to 15 carbon atoms,R.sup.2 denotes an aliphatic hydrocarbon radical which has 10 to 35 carbon atoms and optionally contains double bonds,R.sup.3 denotes a hydrocarbon radical which is at least divalent and can also be heterocyclic, with inclusion of the ester oxygen or amide nitrogen from X, ##STR2## where R.dbd.H or C.sub.1 -C.sub.4 -alkyl, or R is a constituent of a cyclic structure,n denotes a number .gtoreq.2 and y denotes a number .gtoreq.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: June 27, 2000
    Assignee: Bayer Aktiengesellshaft
    Inventors: Bernhard Jansen, Joachim Konig, Bernd Thiele, Jurgen Reiners, Rolf-Volker Meyer
  • Patent number: 6071568
    Abstract: The invention provides composite color-plus-clear coatings having improved appearance, especially with respect to wrinkling, and to methods and compositions for providing such coatings. The method of the invention utilizes a second coating composition comprising (A) a film forming component comprising (a) a first component comprising a compound having appended thereto at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group, and (b) a second component comprising a compound reactive with said carbamate or urea groups on component (a), (B) a cyclic anhydride, and (C) a catalyst.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 6, 2000
    Assignee: BASF Corporation
    Inventors: Herbert L. Harmon, Timothy P. Kandow, Gregory G. Menovcik
  • Patent number: 6072075
    Abstract: Trisubstituted N-protected guanidines and methods for use as guanidinylating reagents to yield N-protected guanidine derivatives.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: June 6, 2000
    Assignee: The Regents of the University of California
    Inventors: Murray Goodman, Konrad Feichtinger, Todd T. Romoff
  • Patent number: 6063954
    Abstract: This invention relates to non-ionic emulsifiers based on fatty acid esters of polyalkoxylated polyhydric alcohols as fundamental constituents. At least two fundamental constituents are linked to each other by the reaction of hydroxyl groups with a polyisocyanate, with the formation of urethane bonds.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: May 16, 2000
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Wolfgang Diener, Volker Duecoffre, Carmen Flosbach, Gerhard Hey, Walter Schubert
  • Patent number: 6060573
    Abstract: The present invention relates to a stabilized, aliphatic and/or cycloaliphatic, blocked polyisocyanates which havei) isocyanate groups blocked with CH-acidic esters,ii) a content of blocked isocyanate groups (calculated as NCO, MW 42) of 5 to 20, preferably 7 to 15 wt. %, based on the solids content of the blocked polyisocyanate andiii) a content of formaldehyde of 0.1 to 5 wt. %, based on the solids content of the blocked polyisocyanate.The present invention also related to a process for the preparation of these stabilized, blocked polyisocyanates and to their use in one-component polyurethane stoving compositions, which may be cured at relatively low stoving temperature of about 100.degree. C., as crosslinking agents for organic polyhydroxy compounds.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: May 9, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eberhard Konig, Claus Kobusch, Wolfram Kuttner
  • Patent number: 6051674
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenol blocked isocyanate having reactive aliphatic hydroxyl groups. The phenol blocked isocyanate may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group and one phenolic hydroxyl group.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: April 18, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Albert I. Yezrielev, Frank N. Jones, Ramachandran P. Subrayan, Vijay Swarup
  • Patent number: 6045872
    Abstract: The curable coating composition of the invention comprises a film forming component (A) and a wrinkle reducing catalyst (B) comprising a compound of the formula:M.sub.y (L).sub.xwherein M is a metal having an empty or full d orbital and wherein the pk.sub.a of the aqua ion of M is less than or equal to 12; L is a ligand wherein the pk.sub.a of the parent acid is .gtoreq.-10 and is .ltoreq.4; and x is an integer which is a multiple of the charge of M, y is an interger which is a multiple of the charge of L, x and y selected so that ML is charge balanced. Film forming component (A) has first component (a) with a compound having appended thereto at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group, and a second component (b) with a compound reactive with said carbamate or urea groups on component (a).
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: April 4, 2000
    Assignee: BASF Corporation
    Inventors: Herbert L. Harmon, Donald H. Campbell, Rodney L. Briggs
  • Patent number: 6036879
    Abstract: Polyoxyalkylene polyols containing double metal cyanide complexes or residues thereof as are produced during the preparation of polyoxyalkylene polyols by the double metal cyanide complex catalyzed oxyalkylation of a suitably functional hydric initiator are stable without catalyst removal. Isocyanate-terminated prepolymers prepared from such polyols are surprisingly viscosity-stable relative to similar prepolymers prepared from polyols not containing double metal cyanide complexes or residues thereof.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: March 14, 2000
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Bruce D. Lawrey, Stephen D. Seneker, Nigel Barksby
  • Patent number: 6034135
    Abstract: The present invention provides novel dimeric cationic lipids. The present invention further provides compositions of these lipids with anionic or polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: March 7, 2000
    Assignee: Promega Biosciences, Inc.
    Inventors: David Aaron Schwartz, Brian Patrick Dwyer, William J. Daily, Kumar Srinivasan, Bob Dale Brown
  • Patent number: 6028212
    Abstract: Solid vinyl ether terminated curing agents for powder coatings can be prepared by reacting an aliphatic diisocyanate with a polyol and then with a hydroxy vinyl ether, or by reacting an aliphatic polyisocyanate with a hydroxy vinyl ether. Powder coatings based on the so prepared curing agents are extremely useful for coating heat sensitive substrates by exposure to ultraviolet light, heat, or both.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: February 22, 2000
    Assignee: Morton International, Inc.
    Inventors: Navin B. Shah, Andrew T. Daly
  • Patent number: 6013731
    Abstract: Stabilizer precursors and preformed stabilizers having induced unsaturation, and prepared from low intrinsic unsaturation-containing polyoxyalkylene polyether polyols may be used to form polymer polyols of higher solids content, lower viscosity, and superior filterability and particle size than polymer polyols prepared from stabilizers derived from polyols having higher intrinsic unsaturation, even when the latter are coupled to form high molecular weight stabilizers.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: January 11, 2000
    Assignee: ARCO Chemical Technology L.P.
    Inventors: Ulrich B. Holeschovsky, Donald W. Simroth
  • Patent number: 5998470
    Abstract: Disclosed herein is a compound of the formula ##STR1## known as 2-[N-(N-benzyloxycarbonyl-L-leucinyl)]-2'-[N'-[4-(N,N-dimethylaminomethyl) benzyloxy]carbonyl-L-leucinyl]carbohydrazide; and pharmaceutically acceptable salts, hydrates and solvates thereof.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: December 7, 1999
    Assignee: SmithKline Beecham Corporation
    Inventors: Stacie Marie Halbert, Scott Kevin Thompson, Daniel Frank Veber
  • Patent number: 5990340
    Abstract: A di-hydroxy-functionalized linear non-crosslinked polyolefin is disclosed having no pendant chain-branched groups which is prepared by reacting 1,4-diacetoxy-2-butene with 1,5-cyclooctadiene in the presence of a catalyst comprising a ruthenium metal carbene complex, characterized in that the functionality number of said polyolefin as determined by NMR is 2.0 and the viscosity of said polyolefin ranges from about 800 to 16000 mPa.s @25.degree. C. at a number average molecular weight ranging from 2,600 to 6,500 g/mole. A prepolymer comprising the reaction of a polyisocyanate with the polyolefin is also disclosed.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: November 23, 1999
    Assignee: Bayer Corporation
    Inventors: Karl W. Haider, Jack C. Chan, E. Haakan Jonsson, Uli W. Franz, Mark A. Peters, Ronald P. Taylor
  • Patent number: 5977398
    Abstract: A viscosity conditioner is disclosed which is comprised of a compound represented by the following formula ##STR1## where R.sup.1 to R.sup.3 each are hydrocarbyl groups which may be identical or different, m ranges from 2 to 4, and n ranges from 1 to 1,000. The specified viscosity conditioner is by nature non-ionic and excellent in leveling.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: November 2, 1999
    Assignee: Asahi Denka Kogyo K.K.
    Inventor: Kaoru Komiya
  • Patent number: 5973072
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenolic urethane reactive diluent. The phenolic urethane reactive diluent may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 26, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Frank N. Jones, Vijay Swarup, Ramachandran P. Subrayan, Suru Zhang
  • Patent number: 5963373
    Abstract: Provided is a primer composition which gives a cured film having a high refractive index and impact resistance, the primer composition containing, as main film-forming components, a bromine compound containing a unit derived from tetrabromobisphenol A and a polyisocyanate, or a prepolymer obtained by reacting them.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: October 5, 1999
    Assignee: Nippon Arc Co., Ltd.
    Inventor: Hisayuki Kayanoki
  • Patent number: 5962721
    Abstract: A method of preparing carbamates by reacting amine with alcohol and mixed gas of CO/O.sub.2 in the presence of one or more catalyst selected from the group consisting of monovalent copper halide having the structural formula of Cu?NCMe.sub.4 !X, K?CuX.sub.2 !, ?CuX(S)! (wherein X=Cl, Br, or I; S=solvent) or monovalent copper compound having carbonyl group having the structural formula of ?Cu(CO)X.sub.a L.sub.b !.sub.m Y.sub.n (wherein, X=CF.sub.3 CO.sub.2, Cl, HB(pz).sub.3 (wherein, pz=pyrazoyl,C.sub.3 H.sub.3 N.sub.2), LBF.sub.2, {LBF.sub.2 =difluoro-3,3'-(trimethylenedinitrilo)bis(2-butanone oximato)borate}; L=en, diene; Y=BPh.sub.4, AsF.sub.6 ; a,b=0,1; m=1-4; n=0,1).
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: October 5, 1999
    Assignee: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Sang Deuk Lee, Hyun-joo Lee, In-Seok Seo, Yong Jin Kim
  • Patent number: 5961878
    Abstract: The invention relates to non-crystallising, amine-blocked polyisocyanates, to the preparation thereof and to their in one-component polyurethane stoving compositions, in particular for coil-coating applications.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: October 5, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eberhard Konig, Karl-Ludwig Noble, Christian Fussel
  • Patent number: 5955561
    Abstract: Novel hydroxy ester, hydroxy amide, and amide functional compounds are provided comprising the reaction product of:(a) an active ester functional material having the structure: ##STR1## wherein R.sup.1 is derived from a polyisocyanate; m is at least 2; R.sup.2 is a lower alkyl or alkoxy group; and R.sup.3 is a lower alkyl group; and(b) ammonia, a diol, or an amino functional material having the structure:R.sup.4 --NH--(R.sup.5).sub.x --(R.sup.6 OR.sup.7).sub.ywherein R.sup.4 is --H or alkanol; R.sup.5 is a polyvalent linking group comprising alkylene, alkylamino, urethane, or amido; x is 0 or 1; R.sup.6 is a divalent linking group comprising alkylene, silane, or siloxane; R.sup.7 is H or a lower alkyl; and y is 1 to 3. The compound is useful in curable film-forming compositions.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 21, 1999
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Padmanabhan Sundararaman
  • Patent number: 5951911
    Abstract: The present invention relates to ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and havea) a content of .beta.,.gamma.-ethylenically unsaturated ether groups (calculated as C.dbd.C, MW 24) incorporated through allophanate groups of 0.5 to 10% by weight,b) an allophanate group content (calculated as N.sub.2 C.sub.2 HO.sub.3, MW 101) of 1 to 20% by weight andc) a total content of ethylenically unsaturated groups of (calculated as C.dbd.C, MW 24) of 1 to 15% by weight.The present invention also relates to ethylenically unsaturated polyisocyanates which contain allophanate groups and havei) an NCO content of 5 to 25% by weight,ii) a content of .beta.,.gamma.-ethylenically unsaturated ether groups (calculated as C.dbd.C, MW 24) incorporated through allophanate groups of 0.5 to 15% by weight andiii) an allophanate group content (calculated as N.sub.2 C.sub.2 HO.sub.3, MW 101) of 1 to 30%.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: September 14, 1999
    Assignee: Bayer Corporation
    Inventors: Lanny D. Venham, Arthur W. Mason, Michael K. Jeffries, Michael J. Dvorchak
  • Patent number: 5945531
    Abstract: A polyisocyanate composition, comprising:A) from 55 to 87% by weight of a polyisocyanate which contains uretdione groups;B) from 10 to 30% by weight of blocking agent,C) from 3 to 30% by weight of polyol having more than two hydroxyl groups and/or chain extender having more than two hydroxyl groups, wherein the polyisocyanate contains more than two terminal, partially or fully blocked isocyanate groups and has a molecular weight of from 1000 to 10,000.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: August 31, 1999
    Assignee: Huels Aktiengesellschaft
    Inventor: Rainer Gras
  • Patent number: 5942540
    Abstract: Methods are disclosed for prophylactically and chronically preventing symptomatic depression, neuronal cell injury and cell death in systemic and neurological conditions, populations with cerebrovascular risk factors, and invasive vascular procedures, employing a glycine-site antagonist at the NMDA (N-methyl-D-aspartate) complex e.g., 2-phenyl-1,3-propanediol dicarbamate (felbamate).
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: August 24, 1999
    Inventor: Walter E. Kozachuk
  • Patent number: 5936055
    Abstract: Disclosed is an acid-funtionalized polyurethane adduct and a process for the preparation of such adduct. The adduct having a linear or preferably branched structure comprises a plurality of internal urethane linkages and one or more terminal carboxylic acid groups per molecule. Such acid-funtionalized polyurethane adducts find value in the manufacture of crosslinked aqueous rubber latexes such as might be used in paint compositions.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: August 10, 1999
    Assignee: The Dow Chemical Company
    Inventors: Michael J. Elwell, Hanno R. van der Wal, Camiel F. Bartelink, Henri J. Grunbauer
  • Patent number: 5925339
    Abstract: The invention relates to agents preventing (the formation of) human malodor. In particular, the invention relates to the use of several classes of compounds which can act as such agents in cosmetic products, such as deodorants and antiperspirants. These compounds are normally odorless or nearly so, but upon contacting the skin as for example, in skin care compositions or in personal care compositions, they prevent malodor. The compounds under consideration are compounds of the formulaX--(Z).sub.n --CO--NH--CH--(COO--Y)--CH.sub.2 CH.sub.2 CONH.sub.2IThe definition of the substituents is given in the specification.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 20, 1999
    Assignee: Givaudan Roure SA
    Inventors: Gonzalo Acuna, Georg Frater, Peter Gygax
  • Patent number: 5919888
    Abstract: Polyoxyalkylene polyols containing double metal cyanide complexes or residues thereof as are produced during the preparation of polyoxyalkylene polyols by the double metal cyanide complex catalyzed oxyalkylation of a suitably functional hydric initiator are stable without catalyst removal. Isocyanate-terminated prepolymers prepared from such polyols are surprisingly viscosity-stable relative to similar prepolymers prepared from polyols not containing double metal cyanide complexes or residues thereof.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: July 6, 1999
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Bruce D. Lawrey, Stephen D. Seneker, Nigel Barksby