Having -c(=x)-, Wherein X Is Chalcogen, Attached Indirectly To Silicon By Nonionic Bonding Patents (Class 556/418)
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Patent number: 6762172Abstract: The composition formed by mixing an organosilane with an organic carbonate. Water-stabilized organosilane compounds. A water stable composition made from the organic carbonate and organosilane composition and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article.Type: GrantFiled: September 28, 2001Date of Patent: July 13, 2004Assignees: Nova Biogenetics, Inc., International Biochemical Industries, Inc.Inventors: Jacques E. Elfersy, Joachim Berkner, Timothy C. Moses
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Publication number: 20040133024Abstract: Siloxane bischloroformates are prepared in a continuous process by phosgenating siloxane bisphenols in a flow reactor using a substantial excess of phosgene and sodium hydroxide. While very high levels (>95%) of conversion of the siloxane bisphenol to the corresponding siloxane bischloroformate are achieved using a flow reactor according to the method of the invention, only more modest conversion (˜90%) of the siloxane bisphenol to the corresponding siloxane bischloroformate is attained when analogous batch processes are employed. The process holds promise for use in the manufacture of silicone-containing copolycarbonates which requires high purity siloxane bischloroformate intermediates.Type: ApplicationFiled: December 17, 2003Publication date: July 8, 2004Inventors: James Manio Silva, David Michel Dardaris, Gary Charles Davis
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Patent number: 6626988Abstract: The invention relates to polyurethane materials, cross-linked by silane polycondensation, containing alkoxylsilane functional polyurethanes, alkaline fillers, phosphorous compounds aminosilanes, organometallic compounds and optionally additional auxiliary agents, to a method for their production and to the use thereof.Type: GrantFiled: November 15, 2001Date of Patent: September 30, 2003Assignee: Bayer AktiengesellschaftInventors: Lutz Schmalstieg, Ralf Lemmerz, Ulrich Walter, Alexander Eckhardt
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Patent number: 6576780Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.Type: GrantFiled: October 13, 2000Date of Patent: June 10, 2003Assignee: GD Searle & CompanyInventors: Rolando E. Gapud, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., Barnett S. Pitzele, Suzanne S. Metz, R. Keith Webber, Foe S. Tjoeng, Robert E. Manning, Mihaly V. Toth
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Patent number: 6545087Abstract: This invention relates to polyurethane prepolymers which comprise alkoxysilane terminal groups and which are based on special, very high molecular weight polyurethane prepolymers, to a method of producing them and to their use as binders for low-modulus sealing materials.Type: GrantFiled: April 12, 2001Date of Patent: April 8, 2003Assignee: Bayer AktiengesellschaftInventors: Lutz Schmalstieg, Ralf Lemmerz, Marie-Helene Walter, Oswald Wilmes
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Patent number: 6528673Abstract: Disclosed herein is a process for the manufacture of a blocked mercaptosilane wherein the process is selected from the group consisting of: (1) reacting a mercaptosilane and a monoacid anhydride corresponding to a thioester group present in the desired product; (2) reacting an alkali salt of a mercaptosilane with the appropriate acid anhydride or acid halide; (3) transesterifying a mercaptosilane and an ester in the presence of an alkali metal of an acid corresponding to the ester; (4) transesterifying a thioester silane and another ester; (5) transesterifying a 1-sila-2-thiacyclopentane or a 1-sila-2-thiacyclohexane and an ester; and (6) reacting an alkali metal salt of a thioacid with a haloalkylsilane.Type: GrantFiled: November 9, 2001Date of Patent: March 4, 2003Assignee: Crompton CorporationInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Patent number: 6489498Abstract: Silanes of the general formula are prepared, wherein R1, R2 and R3 in the molecule are the same or different and represent aliphatic or aromatic hydrocarbon groups, R4 is a divalent hydrocarbon group with 4 to 12 carbon atoms and a lateral hydroxyl group, wherein the hydrocarbon group can be interrupted by an ether oxygen, R5 is a hydrophilic, ionic group. A method for synthesizing these compounds is described. The silanes greatly lower the surface tension of aqueous solutions, the surface tension being reduced to values of about 23 mN/m. The silanes are biologically degradable and have pronounced surfactant properties.Type: GrantFiled: March 27, 2001Date of Patent: December 3, 2002Assignee: Th. Goldschmidt AGInventors: Klaus-Dieter Klein, Wilfried Knott, Götz Koerner, Manfred Krakenberg
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Patent number: 6489499Abstract: Novel compounds comprising siloxane modified carboxylic acid substituted amines and salts thereof are provided. The compounds according to the invention provide many of the desirable properties of ethylenediamine tetraacetic acid and its salts in a stationary phase. A process for synthesis of the compounds according to the invention are also provided.Type: GrantFiled: March 11, 2002Date of Patent: December 3, 2002Assignee: United Chemical Technologies, Inc.Inventors: Wayne King, John H. MacMillan, Michael J. Telepchak
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Patent number: 6482969Abstract: There are disclosed novel quaternary ammonium functional silicones and silanes and methods to make quaternary ammonium functional silicones and silanes. Quaternary ammonium functionality may be provided through the use of cationizing agents.Type: GrantFiled: October 24, 2001Date of Patent: November 19, 2002Assignee: Dow Corning CorporationInventors: Liza Ruth Helmrick, John Joseph Kennan
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Patent number: 6465671Abstract: Disclosed herein are a silane coupling agent and a method of preparing the same useful for a composite organic-inorganic material. The silane coupling agent is represented by the formula of R1R2R3Si—X, wherein R1, R2, and R3, respectively, represent straight or branched alkyl having 4 to 22 carbon atoms, alkoxy, phenyl, phenyl alkoxy, benzyloxy or phenyl alkyl group. The method comprises the steps of: dissolving a vinyl derivative in a solvent under a nitrogen or argon atmosphere; and reacting the resulting solution with an alkoxysilane derivative at a temperature of 20 to 200° C. for 1 to 72 hours in the presence of a metal catalyst. Alternatively, the method comprises the steps of: dissolving alkylmagnesium halide in a solvent under a nitrogen or argon; and reacting the resulting solution with haloalkoxysilane at a temperature of −78° C. to 50° C. for 0.1 to 5 hours.Type: GrantFiled: January 10, 2000Date of Patent: October 15, 2002Assignee: Korea Advanced Institute of Science and TechnologyInventors: Byeong Soo Bae, Yoon Ki Choi, Young Joo Eo, Oun Ho Park
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Patent number: 6441213Abstract: An adhesion promoter containing silane, and carbamate, thiocarbamate or urea functionality, and electron donor or electron acceptor functionality, displays low volatility.Type: GrantFiled: May 18, 2000Date of Patent: August 27, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Osama M. Musa, Colin McLean, Mark Bonneau, Nikola A. Nikolic
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Publication number: 20020115877Abstract: The invention provides a novel silicon-containing compound having an oxidation potential of 0.3 to 1.5 V on the basis of a standard hydrogen electrode, wherein at least one alkoxy group is bonded to a silicon atom and at least one aromatic amine group is also bonded to the silicon atom.Type: ApplicationFiled: February 5, 2002Publication date: August 22, 2002Applicant: Sumitomo Chemical Company, LimitedInventors: Masato Ueda, Isao Yahagi, Makoto Kitano
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Patent number: 6413945Abstract: A compound is disclosed havin the formula AW—SiR1R2R3 wherein R1 and R2 are independently alkyl, cycloalkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl, or a hydrophilic group; R3 is a hydrophilic group; and AW is the covalently bonded form of a drug AWH, wherein W is O, NH, S, or an enolate group. The hydrophilic group may be either non-neutral, or may be a polyol. This compound serves as a prodrug for the drug AWH. A method for preparing these compounds is also disclosed. Also disclosed is a method of treatment or prevention of gastric ulcers by administering the prodrug compounds.Type: GrantFiled: February 28, 2000Date of Patent: July 2, 2002Assignee: Pharmacia CorporationInventors: Samuel J. Tremont, Paul W. Collins, Ricky L. Fenton
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Patent number: 6379751Abstract: The invention relates to polysiloxanes containing carboxyl groups that are useful for imparting water-repellency to substrates, a process for their preparation, a water-repellent system containing such polysiloxanes, and a process for the production of hydrophobic substrates.Type: GrantFiled: December 11, 2000Date of Patent: April 30, 2002Assignee: Bayer AktiengesellschaftInventors: Walter Schäfer, Günter Sackmann, Jürgen Reiners, Tillmann Hassel, Manfred Schnee, Fritz Novotny
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Patent number: 6310169Abstract: The present invention relates to polymerizable terminal group-containing polyorganosiloxane having a number average molecular weight of 500 to 100000 represented by the following Formula (1): wherein R1, R2, R3, R4 and R5 each represent a linear or branched alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 4 to 10 carbon atoms or an aryl-containing group having 6 to 10 carbon atoms; R6 represents a hydrogen atom, a linear or branched alkyl group having 1 to 5 carbon atoms or an aryl-containing group having 6 to 10 carbon atoms; n represents 1 or more and m represents 0 or more, in which n+m represents an average polymerization degree and is 4 to 1100; X represents an alkylene group having 2 to 20 carbon atoms; Y represents —OCH2CH2—, —OCH(CH3)CH2— or —OCH2CH(CH3)—; p represents 3 or more; and Z represents an alkylene group having 1 to 20 carbon atoms.Type: GrantFiled: March 6, 2000Date of Patent: October 30, 2001Assignee: Chisso CorporationInventors: Kiichi Kawabata, Youichi Kimae
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Publication number: 20010018044Type: ApplicationFiled: February 2, 2001Publication date: August 30, 2001Inventors: Tetsuo Nakanishi, Ichiro Ono, Toru Shimizu
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Patent number: 6268454Abstract: The invention relates to a novel amino acid silicon polymer with good adhesion to the keratin layer of the skin, a method of preparing the amino acid silicon polymer, a cosmetic particles surface-treated with the amino acid silicon polymer, and a color cosmetic composition including the cosmetic particles. According to the present invention, the particles surface-treated up to 3% to the maximum with the amino acid silicon polymer prepared by reacting an amino acid and a functional silicon polymer in the manner of organic synthesis have water resistance and usability peculiar to silicon-treated pigments and take positive surface charges, thereby offering good adhesion to the skin and durability. Due to these characteristics, the cosmetic containing the surface-treated particles of the present invention is superior in the cosmetic effect to that containing the conventional surface-treated particles.Type: GrantFiled: February 17, 2000Date of Patent: July 31, 2001Assignee: Pacific CorporationInventors: Dong Hyuk Song, Yeong Jin Choi, Kil Joong Kim, Young Chul Lee
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Patent number: 6265514Abstract: Poly(siloxane-acrylate) elastomers with low weep characteristics are formed by the steps of: (A) forming an amine functional alkenyl-containing siloxane by mixing and heating: (a) a polydiorganosiloxane, (b) an amino-functional silane hydrolyzate, (c) an alkenylorganosiloxane, and (d) a base equilibration catalyst, then (B) reacting, at room temperature, the amine functional alkenyl-containing siloxane with an acrylate to form a curable alkenyl-containing poly(siloxane-acrylate) with oxycarbonylethyleneimino-containing organic groups, and (C) curing the alkenyl-containing poly(siloxane-acrylate) to form an poly(siloxane-acrylate) elastomer.Type: GrantFiled: February 17, 2000Date of Patent: July 24, 2001Assignee: Dow Corning CorporationInventors: Stephen Clay Warren, Michael Ward Skinner, Jon Vierling DeGroot, Jr.
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Patent number: 6255511Abstract: Silanes of the general formula are prepared, wherein R1, R2 and R3 in the molecule are the same or different and represent aliphatic or aromatic hydrocarbon groups, R4 is a divalent hydrocarbon group with 4 to 12 carbon atoms and a lateral hydroxyl group, wherein the hydrocarbon group can be interrupted by an ether oxygen, R5 is a hydrophilic, ionic group. A method for synthesizing these compounds is described. The silanes greatly lower the surface tension or aqueous solutions, the surface tension being reduced to values of about 23 mN/m. The silanes are biologically degradable and have pronounced surfactant properties.Type: GrantFiled: September 6, 1994Date of Patent: July 3, 2001Assignee: Th Goldschmidt AGInventors: Klaus-Dieter Klein, Wilfried Knott, Götz Koerner, Manfred Krakenberg
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Patent number: 6215011Abstract: Silane compositions are described which comprise (A) a silane coupling agent; and (B) a tris(silylorgano)amine or alkane characterized by the formulae [(RO)3SiR1]3N (I) or [(RO)3SiR1]3CR2 (II) wherein each R is independently an alkyl, alkoxyalkyl, aryl, aralkyl or cycloalkyl group of less than 20 carbon atoms; R1 is a divalent hydrocarbon or polyether group of less than 20 carbon atoms; and R2 is a functional group represented by CnH2nX wherein n is from 0 to 20 and X is selected from the group consisting of amino, amido, hydroxy, alkoxy, halo, mercapto, carboxy, acyl, vinyl, allyl, styryl, epoxy, isocyanato, glycidoxy, and acryloxy groups. The silane compositions of the present invention are adhesive compositions providing improved bonding of surfaces such as glass, metal and metal oxides to thermosetting resins. The silane compositions also exhibit improved moisture resistance.Type: GrantFiled: January 20, 1995Date of Patent: April 10, 2001Assignee: McGean-Rohco, Inc.Inventor: Craig V. Bishop
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Patent number: 6211393Abstract: Silicon compound of general formula a), in which A, B, C, D are radicals which are different from OH and are covalently bonded to Si; two or three of these bond that are linked to Si are Si—O—C, Si—S—C or Si—N—C type bonds and are hydrolyzable in vivo, forming Si—OH bonds that are biologically active especially when in contact with living tissue, the A and D bonds of formula b) being invariably hydrolyzable; at least one of the hydrolyzable bonds corresponds to an acyloxy, aryloxy or vinyloxy radical; at least one of the compounds obtained after hydrolysis of the hydrolyzable bonds is a stabilizer, and the non-hydrolyzable bonds, which are of the Si—C type, correspond to hydrocarbon or fluorocarbon radicals for which Si is not directly linked to the phenyl ring.Type: GrantFiled: July 22, 1996Date of Patent: April 3, 2001Assignee: Exsymol S.A.M.Inventors: Marie Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
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Patent number: 6203578Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.Type: GrantFiled: September 29, 1999Date of Patent: March 20, 2001Assignee: L'OrealInventors: Madeleine Leduc, Hervé Richard, Alain Lagrange
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Patent number: 6200684Abstract: A novel perfluoropolyether-modified aminosilane cures into a film having improved water and oil repellency, parting and anti-staining properties. A surface treating agent comprising the aminosilane, and an article with a coating of the aminosilane are also provided.Type: GrantFiled: May 19, 2000Date of Patent: March 13, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiromasa Yamaguchi, Kouichi Yamaguchi, Hirofumi Kishita
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Patent number: 6176885Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibers and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.Type: GrantFiled: September 29, 1999Date of Patent: January 23, 2001Assignee: L'OrealInventors: Madeleine Leduc, Herv{acute over (e)} Richard, Alain Lagrange
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Patent number: 6177534Abstract: A silylated resin suitable for use as an adhesive binder for composites and in sealant and adhesive dental applications is represented by the general formula (I): in which: R1 is an aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group; R2 is the same as R1 or a different aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group; M2 is the same as M1 or a different functional or nonfunctional group selected from the group consisting of: n is 1-3; x is 1-20; and y is 1-20; which comprises the reaction product of the exchange reaction of a hydroxylated, aminated, or carboxylated acrylic resin represented by the general formula (II): in which: R4 is an aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group with one or more protic functional groups selected from the group consisting of: OH, N—H, and CO2H R5 is H or CH3; and R6 is H or CH3; with a trialkoxyorganosilane or triacyloxyorganosiType: GrantFiled: December 17, 1998Date of Patent: January 23, 2001Assignee: The United States of America as represented by the Secretary of CommerceInventors: Joseph M. Antonucci, Jeffrey W. Stansbury, Bruce O. Fowler
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Patent number: 6172250Abstract: A process for the preparation of biologically active silicon compounds by hydrolysis of a precursor which produces a compound which prevents the formation of polymers from the silicon hydrolyzed bonds.Type: GrantFiled: July 16, 1996Date of Patent: January 9, 2001Assignee: Exsymol S.A.M.Inventors: Marie-Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
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Patent number: 6150548Abstract: The invention relates to a compound having the formula I ##STR1## wherein R.sup.1 is hydroxy, (1-6C)alkoxy or NR.sup.4 R.sup.5, R.sup.4 and R.sup.5 being independently hydrogen, (1-6C)alkyl, (3-7C)cycloalkyl, (2-6C)alkenyl, (4-6C)aryl or (5-7C)aralkyl, the aryl groups of which may be optionally substituted with halogen, (1-6C)alkyl or (1-6C)alkoxy;R.sup.2 is a halo atom, (1-8C)acyloxy, --O--C(O)--O-(1-6C)alkyl, --O--C(O)--O-(5-7C)aralkyl, --SR.sup.6, --S(O)R.sup.6, --SeR.sup.6 or --Se(O)R.sup.6, R.sup.6 being (1-6C)alkyl or (4-6C)aryl; andR.sup.3 is --Si(R.sup.7).sub.3, R.sup.7 being independently (1-6C)alkyl or (4-6C)aryl. The compounds of the invention may be used as protective groups or as linkers in solid phase organic chemistry.Type: GrantFiled: February 9, 1999Date of Patent: November 21, 2000Assignee: Akzo Nobel, N.V.Inventor: Wim-Jan Koot
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Patent number: 6147240Abstract: The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.Type: GrantFiled: April 5, 1999Date of Patent: November 14, 2000Assignee: Ugichem GmbHInventors: Ivar Ugi, Holger Bock, Thomas Lindhorst
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Patent number: 6124491Abstract: The invention includes hydrolyzable and polymerizable silanes, methods of making them and using them to obtain silicic acid(hetero)polycondensates and silicic acid(hetero)polymerizates. The hydrolyzable and polymerizable silanes have the formula I, ##STR1## wherein A=O, S, NH or C(O)O; wherein B=a straight chain or branched organic residue with at least one C.dbd.C double bond and from 4 to 50 carbon atoms;R is an alkyl group, alkenyl group, aryl group, alkylaryl group or an arylalkyl group;R' is a substituted or unsubstituted alkylene group, arylene group, arylenealkylene group or alkylenearylene group each having zero to ten carbon atoms, with the proviso that the substituted groups each have at least one oxygen atom, sulfur atom and/or amine group substituent;R.sup.Type: GrantFiled: February 25, 1997Date of Patent: September 26, 2000Assignee: Fraunhofer-Gesellschaft Zur Forderung der AngewandtenInventors: Herbert Wolter, Werner Storch
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Patent number: 6124490Abstract: Ionically cross-linked silicone polymers of a thickened gel-like consistency are made by reacting a diamino containing polysiloxane with an acid containing reactant selected from itaconic acid or the ester derivative thereof; substituted or unsubstituted cyclic and ankydride; substituted or unsubstituted conjugated olefinic acid or mixtures of the same at an elevated temperature in the presence of a low molecular weight silicone oil or other solvent until an ionically cross-linked zwitterionic siloxane polymer of a gel-like consistency is formed.Type: GrantFiled: October 26, 1999Date of Patent: September 26, 2000Assignee: Mona Industries, Inc.Inventors: John L. Gormley, Abe Berger, Dennis L. Fost
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Patent number: 6121404Abstract: A method of making .beta.-diketo functional silanes and siloxanes in which the acetoacetic ester moiety, i.e., .beta.-diketo CH.sub.3 COCH.sub.2 CO--, is attached to the oxygen or nitrogen atoms of C--OH or C--NH.sub.2 containing functional silanes or siloxanes, by reacting the organosilicon nucleophile with diketene, as illustrated below for the C--OH containing functional silane. ##STR1## The products can be formed into curable compositions, or used as additives in durable textile treatments, polyurethane foams, and hair care applications.Type: GrantFiled: July 6, 1998Date of Patent: September 19, 2000Assignee: Dow Corning CorporationInventor: Donald Taylor Liles
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Patent number: 6114559Abstract: Novel silicone-substituted cinnamamide/malonamide/malonate compounds having the structural formulae (1) and (2): ##STR1## in which A is a radical of formula (3): ##STR2## are well suited for the photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, and are also useful for photoprotecting such UV-sensitive substrates as plastics.Type: GrantFiled: November 28, 1997Date of Patent: September 5, 2000Assignee: Societe L'Oreal S.A.Inventors: Herve Richard, Madeleine Leduc
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Patent number: 6046348Abstract: The present invention provides a silane compound represented by general formula, I, below, a method for preparing the silane compound and a photoreceptor for use in electrostatic photography utilizing the silane compound. Accordingly, the present invention provides an electrophotographic photoreceptor having an enhanced mechanical strength, a high sensitivity and superior stability to environmental conditions.Type: GrantFiled: July 15, 1997Date of Patent: April 4, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Wataru Yamada, Katsumi Nukada, Masahiro Iwasaki
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Patent number: 6030959Abstract: A compound is disclosed having the formulaAW--SiR.sup.1 R.sup.2 R.sup.3wherein R.sup.1 and R.sup.2 are independently alkyl, cycloalkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl, or a hydrophilic non-neutral group; R.sup.3 is a hydrophilic non-neutral group; and AW is the covalently bonded form of a drug AWH, wherein W is O, CO.sub.2, NH, S, or an enolate group. This compound serves as a prodrug for the drug AWH. A method for preparing these compounds is also disclosed. Also disclosed is a method of treatment or prevention of gastric ulcers by administering the prodrug compounds.Type: GrantFiled: March 30, 1998Date of Patent: February 29, 2000Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Paul W. Collins
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Patent number: 6027537Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.Type: GrantFiled: October 30, 1997Date of Patent: February 22, 2000Assignee: L'OrealInventors: Madeleine Leduc, Herve Richard, Alain Lagrange
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Patent number: 6004540Abstract: Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel sulfonamido-functional polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent benzylidenecamphor radical which comprises a sulfonamido-functional bridging group, which is bonded directly to a silicon atom, and which has the formula. (4.Type: GrantFiled: June 23, 1997Date of Patent: December 21, 1999Assignee: Societe L'Oreal S.A.Inventors: Herve Richard, Madeleine Leduc, Alain Lagrange
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Patent number: 6001946Abstract: Certain members of the class of N-silylalkyl-aspartic acid esters, when used to endcap polyurethane polymers, offer moisture curable, one-part sealant formulations having significantly improved physical property improvements over other members of the same class of organofunctional silanes. More specifically, polyurethane polymers terminated with either the dibutyl or diethyl maleate/primary aminoalkyl silane addition product offer sealants which substantially outperform comparative sealants obtained using polymers endcapped with other olefinic carboxylate ester (dimethyl maleate, dimethyl crotonate) or nitrile (acrylonitrile)/primary aminoalkyl silane addition products. Additionally, sealant formulations incorporating the dibutyl or diethyl maleate/primary aminoalkyl silane terminated polymers demonstrate unexpected improvements in both elongation and tensile strength performance. The dibutyl maleate and dimethyl maleate based polymers give significant increase in tear resistance.Type: GrantFiled: September 18, 1997Date of Patent: December 14, 1999Assignee: Witco CorporationInventors: Bruce A. Waldman, Shayne J. Landon, Herbert E. Petty
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Patent number: 5998504Abstract: The present invention relates to colloidal metal oxides having blocked isocyanate groups, which are based on the reaction product ofA) blocked isocyanate group-containing silanes corresponding to formula (I) ##STR1## wherein R represents hydrogen or an organic group having 1 to 40 carbon atoms,X, Y and Z represent identical or different organic groups having 1 to 30 carbon atoms which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is a C.sub.1 -C.sub.4 -alkoxy group,Q represents an organic group which contains at least one isocyanate group reacted with a blocking agent andn is 2, 3 or 4 withB) colloidal metal oxides selected from Al, Si, Ti, Ta, W, Hf, Zr, Sn and Y.The present invention also relates to the use of modified metal oxides, either alone or in combination with compounds containing at least two isocyanate-reactive groups, for the preparation of optionally expanded polyurethane plastics, lacquers or coating agents.Type: GrantFiled: April 3, 1998Date of Patent: December 7, 1999Assignee: Bayer AktiengesellschaftInventors: Stefan Groth, Claus Kobusch, Lutz Schmalstieg, Lothar Puppe, Theodor Engbert, Manfred Bock, Gerhard Jonschker
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Patent number: 5990334Abstract: Ionic organosilicon compounds comprising siloxane units of the formulaA.sub.a R.sub.b X.sub.c SiO.sub.(4-a-b-c)/2 (I),in whichR is an identical or different, optionally halogenated hydrocarbon radicals having 1 to 12 carbon atoms or radicals of the formulae--R'--((NHCH.sub.2 CH.sub.2).sub.o --(N.sup.+ H.sub.2 CH.sub.2 CH.sub.2).sub.p --N.sup.(x+q-2)+ H.sub.x R".sub.q).sub.d-1 (II)--R'--(SH).sub.d-1 (III)or--R'--(Z--C (O)--CR'"=CH.sub.2).sub.d-1 (IV)in whichR', R", Z, R'", o, p, q, x, d, X and A have the meaning given in claim 1 anda is 0 or 1,b is 0, 1, 2 or 3,c is 0, 1, 2 or 3and the sum a+b+c is.ltoreq.Type: GrantFiled: December 9, 1997Date of Patent: November 23, 1999Assignee: Wacker-Chemie GmbHInventors: Thomas Hierstetter, Jochen Dauth, Birgit Peschanel, Bernward Deubzer
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Patent number: 5981511Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.Type: GrantFiled: March 5, 1997Date of Patent: November 9, 1999Assignee: G.D. Searle & Co.Inventors: Rolando E. Gapud, Timothy J. Hagen, Ann E. Hallinan, Donald W. Hansen, Jr., Robert E. Manning, Suzanne Metz, Barnett S. Pitzele, Foe S. Tjoeng, Mihaly V. Toth, R. Keith Webber
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Patent number: 5976558Abstract: The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.Type: GrantFiled: January 8, 1998Date of Patent: November 2, 1999Assignee: L'OrealInventors: Herve Richard, Madeleine LeDuc, Alain LaGrange
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Patent number: 5962724Abstract: The present invention relates to a highly enantioselective process for the preparation of enantiomerically pure cyclopentane- and -pentene .beta.-amino acids of the general formula (I) ##STR1## in which A and L, A and D or E and L, D and E, R.sup.2, R.sup.3, T and R.sup.1 have the meaning given in the description.Type: GrantFiled: July 5, 1996Date of Patent: October 5, 1999Assignee: Bayer AktiengesellschaftInventors: Joachim Mittendorf, Hermann Arold, Peter Fey, Michael Matzke, Hans-Christian Militzer, Klaus-Helmut Mohrs
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Patent number: 5948927Abstract: Bis-silyl tertiary amines of the formula (I) ?((R.sup.1).sub.b Y).sub.a R.sup.2.sub.3-a SiR.sup.3 !.sub.2 NX wherein R.sup.1 and R.sup.2 are monovalent radicals, R.sup.Type: GrantFiled: April 1, 1998Date of Patent: September 7, 1999Assignee: Witco CorporationInventors: Michael Lee Gunther, Eric Raymond Pohl
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Patent number: 5945408Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.Type: GrantFiled: August 8, 1996Date of Patent: August 31, 1999Assignee: G.D. Searle & Co.Inventors: R. Keith Webber, Foe S. Tjoeng, Robert E. Manning
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Patent number: 5917075Abstract: The hydrolyzable and polymerizable silanes have the formula I, ##STR1## wherein X is hydrogen, a halogen, a hydroxy, an alkoxy group, an acyloxy oup, an alkylcarbonyl group, an alkoxycarbonyl group or --NR.sup.2.sub.2 group; wherein R.sup.Type: GrantFiled: December 22, 1997Date of Patent: June 29, 1999Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung, e.V.Inventor: Herbert Wolter
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Patent number: 5906812Abstract: The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.Type: GrantFiled: August 14, 1998Date of Patent: May 25, 1999Assignee: L'OrealInventors: Herve Richard, Madeleine LeDuc, Alain LaGrange
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Patent number: 5900231Abstract: The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.Type: GrantFiled: August 14, 1998Date of Patent: May 4, 1999Assignee: L'OrealInventors: Herve Richard, Madeleine LeDuc, Alain LaGrange
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Patent number: 5859277Abstract: A compound of the formula ##STR1## where R is a solid support; R.sub.1 and R.sub.2 are alkyl, unsubstituted alkyl, or phenyl, and where R.sub.1 and R.sub.2 can be the same or different, for use in solid-phase synthesis.Type: GrantFiled: June 25, 1997Date of Patent: January 12, 1999Assignee: Wisconsin Alumni Research FoundationInventors: Howard W. Whitlock, Karin Kay Maxson
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Patent number: 5840961Abstract: The invention herein is directed to a process for the preparation of ethyl 3S-amino-4-pentynoate which involves treating 3-(trimethylsilyl)-2-propynal with L-phenylglycinol in toluene to produce .alpha.S-??3-(trimethylsilyl)-2-propynylidene amino!benzenethanol; reacting .alpha.S-??3-(trimethylsilyl)-2-propynylidene!amino!benzenethanol with BrZnCH.sub.2 CO.sub.2 t-Bu in THF/NMP to produce 1,1-dimethylethyl 3S-?(2-hydroxy-1S-phenylethyl)amino!-5-(trimethylsilyl)-4-pentynoate; reacting the 1,1-dimethylethyl 3S-?(2-hydroxy-1S-phenylethyl)amino!-5-(trimethylsilyl)-4-pentynoate with sodium periodate to form 1,1-dimethylethyl 3S-?(phenylmethylene)amino!-5-(trimethylsilyl)-4-pentynoate; hydrolyzing 1,1-dimethylethyl 3S-?(phenylmethylene)amino!-5-(trimethylsilyl)-4-pentynoate to produce 1,1-dimethylethyl 3S-amino-5-(trimethylsilyl)-4-pentynoate; transesterifying 1,1-dimethyl 3S-amino-5-(trimethylsilyl)-4-pentynoate and desilylating to produce ethyl 3S-amino-4-pentynoate.Type: GrantFiled: July 10, 1997Date of Patent: November 24, 1998Assignee: G. D. Searle & Co.Inventors: James Richard Behling, Mark Laurence Boys, Kimberly Jo Cain-Janicki, Pierre-Jean Colson, Wendel William Doubleday, Joseph Edward Duran, Payman N. Farid, Carl Matthew Knable, Frank Walter Muellner, Sean Thomas Nugent, Ravindra S. Topgi
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Patent number: 5739369Abstract: A surface treating agent comprising a reaction product of (A) a fluoroalkyl group-containing alkoxysilane with (B) an amino group-containing alkoxysilane and optionally further with (C) an alkyl group-containing alkoxysilane is water soluble. The agent is diluted with water to form a solution for treating glass and other substrates to impart durable water repellency and other improved properties to the substrates.Type: GrantFiled: April 19, 1996Date of Patent: April 14, 1998Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuyuki Matsumura, Mitsuo Asai, Shoji Ichinohe