Plural Silicons Attached By A Chain Consisting Of Oxygen And Carbon, Which Chain May Be Part Of A Ring Patents (Class 556/443)
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Patent number: 6974500Abstract: To provide a primer composition having an excellent balance between storage stability and adhesiveness, while permitting a longer open time. The primer composition includes: a compound (a) represented by the following formula (1): and an organic solvent (b).Type: GrantFiled: August 18, 2003Date of Patent: December 13, 2005Assignee: The Yokohama Rubber Co., Ltd.Inventors: Akihiro Miyata, Kazunori Ishikawa, Hideyuki Matsuda
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Patent number: 6960679Abstract: By reacting ?,?-unsaturated carboxylic esters with hydrosilanes or hydrosiloxanes in the presence of a catalytic amount of tris(pentafluorophenyl)borane, silyl ketene acetals or disilyl ketene acetals with high purity are produced in high yields.Type: GrantFiled: April 22, 2004Date of Patent: November 1, 2005Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Ayumu Kiyomori, Tohru Kubota
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Patent number: 6943265Abstract: The invention relates to a method for the production of hydroxyalkyl polysiloxanes of general formula (V) (SiO4/2)k(R12SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2SiR32—(CR42)b—OH]5[O1/2H]t (V), wherein organosiloxanes of general formula (VI) (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r(VI) containing silanol are made to react with compounds having at least one unit of general formula (IV) [O—(CR42)b—SiR32]n—(IV).Type: GrantFiled: February 7, 2002Date of Patent: September 13, 2005Assignee: Consortium fur Elektrochemische Industrie, GmbHInventors: Oliver Schäfer, Thomas Kammel, Bernd Pachaly
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Patent number: 6918931Abstract: Yellow dye moiety-containing prepolymers with blue light absorbing priorities and methods for producing the same for use in the production of relatively high refractive index polymeric compositions are described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.Type: GrantFiled: September 8, 2003Date of Patent: July 19, 2005Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Dominic V. Ruscio
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Publication number: 20040249180Abstract: Monomers for polymers having high oxygen permeability, high water content and a low modulus of elasticity are provided, and polymers and ophthalmic lenses comprised of said monomers are provided.Type: ApplicationFiled: April 1, 2004Publication date: December 9, 2004Inventors: Masataka Nakamura, Mitsuru Yokota
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Patent number: 6790451Abstract: A cosmetic material comprising as essential cosmetic constituents (A) a silicone-branched silicone compound and (B) a silicone-branched polyether-modified silicone compound.Type: GrantFiled: December 11, 2001Date of Patent: September 14, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Tetsuo Nakanishi
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Patent number: 6784306Abstract: Fluorinated organosilicon compounds having at least one fluorinated organic group and at least three SiH groups in a molecule are capable of hydrosilylation reaction with such compounds as vinyl group-bearing fluoro-polymers in a stable manner and fully compatible therewith.Type: GrantFiled: February 20, 2002Date of Patent: August 31, 2004Assignee: Shin-etsu Chemical Co., Ltd.Inventors: Kenichi Fukuda, Koichi Yamaguchi
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Patent number: 6753401Abstract: A process for the production of a silicon-containing polymer having a main chain of oxygen atoms, organic groups and Si—H and a process for the production of a silicon-containing polymer having a main chain of oxygen atoms, organic groups and disubstituted silicon atoms are disclosed. The silicon-containing polymer may be produced by dehydrogenative polymerization of quinone and/or diol with trihydrosilane or dihydrosilane in the presence of a palladium-containing catalyst.Type: GrantFiled: August 6, 2002Date of Patent: June 22, 2004Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Poreddy Narsi Reddy, Teruyuki Hayashi, Masato Tanaka
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Publication number: 20040054210Abstract: Compounds that include diorgano groups having quaternary carbons, silicon-containing groups, and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.Type: ApplicationFiled: September 16, 2003Publication date: March 18, 2004Applicant: Medtronic, Inc.Inventors: Michael E. Benz, Christopher M. Hobot, Randall V. Sparer
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Publication number: 20030236425Abstract: UV curable compositions, polymeric photoinitiators and precursors therefor are described.Type: ApplicationFiled: June 18, 2003Publication date: December 25, 2003Inventors: Donald E. Herr, Ziyi Hu, Charles W. Paul, Robert W.R. Humphreys
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Publication number: 20030181749Abstract: A process for the purification of a silicone oil or fluid using neat supercritical carbon dioxide or a supercritical carbon dioxide mixture extraction to produce vitreoretinal silicone tamponades. The subject process is an economical, highly effective, reproducible, contaminant-free method by which unreacted relatively low molecular weight cyclic siloxanes and oligomers are removed from relatively high molecular weight silicone oil or fluid.Type: ApplicationFiled: June 7, 2002Publication date: September 25, 2003Inventors: Jay F. Kunzler, Joseph C. Salamone, Dharmendra Jani, Erik M. Indra
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Patent number: 6576623Abstract: A silicone compound useful in cosmetic materials and skin cleansing compositions which have no oily feel although they spread easily and smoothly, give moist, fresh and dry feelings to the users, have durable effects, and are highly stable to temperature changes and long-term storage. They additionally also absorb makeup cosmetics and sebum stains well when used in a skin-cleansing composition.Type: GrantFiled: July 31, 2000Date of Patent: June 10, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tetsuo Nakanishi, Ichiro Ono
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Patent number: 6570032Abstract: Compounds containing vinyl silane and electron donor or electron acceptor functionality can be used as adhesion promoters or as the main resin in curable compositions.Type: GrantFiled: September 28, 2001Date of Patent: May 27, 2003Assignee: National Starch and Chemical Investment Holding CorporationInventor: Osama M. Musa
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Patent number: 6552213Abstract: The present invention relates to a new stereoselective method for the preparation of tris-O-substituted-(E)-1-(3,5-dihydroxyphenyl)-2-(4-hydroxyphenyl)ethene derivative of the formula (I) which is a key intermediate in the synthesis of trans-resveratrol (I, R2=R2=R3=H). The invention also provides a method for the exclusive synthesis of trans-isomer of compounds of formula (I) without any contamination of cis-isomer.Type: GrantFiled: May 24, 2002Date of Patent: April 22, 2003Assignee: Orchid Chemicals & Pharmaceuticals Limited, IndiaInventors: Pandurang Balwant Deshpande, Udayampalayam Palanisamy Senthilkumar, Gnanaprakasam Andrew
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Patent number: 6258914Abstract: Alkoxy silane oligomers which have a non-hydrolyzable carbon bridged bond to another silane functionality are taught herein, as well as their manufacture and utility.Type: GrantFiled: October 15, 1999Date of Patent: July 10, 2001Assignee: C. K. Witco CorporationInventors: Shiu-Chin Huang Su, Herbert E. Petty, Fredrick D. Osterholtz
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Patent number: 6184422Abstract: Compounds of formula I wherein X is C═CH2 or CH2; Y and Z are independently of each other hydrogen, fluorine or hydroxy; A is —C≡C—, —CH═CH— or —CH2—CH2—, R1 and R2 are independently of each other alkyl or perfluoroalkyl; and R3 is lower alkyl are useful in the treatment or prevention of hyperproliferative skin diseases, particularly psoriasis, basal cell carcinomas, disorders of keratinization and keratosis; or for reversing the conditions associated with photodamage.Type: GrantFiled: February 18, 1999Date of Patent: February 6, 2001Assignee: Hoffman-La Roche Inc.Inventors: Pierre Barbier, Franz Bauer, Peter Mohr, Marc Muller, Wolfgang Pirson
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Patent number: 6075015Abstract: Vitamin D.sub.3 analogues of the formula (I): ##STR1## wherein R.sub.1 is hydrogen or hydroxy, R.sub.2 is (C.sub.1 -C.sub.3)alkyl, hydroxy(C.sub.1 -C.sub.3)alkyl, (C.sub.1 -C.sub.2)alkoxymethyl, (C.sub.2 -C.sub.3)alkenyl, or (C.sub.2 -C.sub.3)alkynyl, R.sub.3 is a branched or unbranched, saturated or unsaturated aliphatic 3- to 5- membered hydrocarbon or oxahydrocarbon biradical, having at least 3 atoms in the main chain and being optionally substituted with one or more substituents selected from epoxy, fluoro and hydroxy, R.sub.4 is sec. or tert. (C.sub.3 -C.sub.6)alkyl or (C.sub.3 -C.sub.6)cycloalkyl, A and B are each individually hydrogen or methyl, or A and B together from methylene.Type: GrantFiled: May 27, 1997Date of Patent: June 13, 2000Assignee: Duphar International Research B.V.Inventors: Jose P. Sestelo, Antonio Mourino, Jose L. Mascarenas, Sebastianus J. Halkes, Jan Zorgdrager, Gerhardus D. H. Dijkstra, Jan-Paul van de Velde
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Patent number: 6066727Abstract: Disclosed is a novel method for the preparation of an organo-polysiloxane-grafted polysaccharide compound which is particularly useful as an additive ingredient in various types of cosmetic and toiletry preparations. The method utilizes a reaction between epoxy groups of a diorganopolysiloxane, e.g., dimethylpolysiloxane, terminated at a single molecular chain end with a 2-(3,4-epoxycyclohexyl)ethyl group and carboxyl groups in a carboxyl group-containing polysaccharide compound such as hydroxypropyl methyl cellulose phthalate and hydroxypropyl methyl cellulose acetate succinate dissolved in an organic solvent. The reaction proceeds efficiently without addition of any catalytic compounds almost quantitatively under moderate reaction conditions.Type: GrantFiled: June 4, 1999Date of Patent: May 23, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Akira Yamamoto, Ichiro Ono
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Patent number: 6013823Abstract: Analogs of the prostaglandin PGE.sub.1 are disclosed. These compounds exhibit uterotonic properties, enhancing the response to PGF.sub.2 .alpha. in isolated rat uteri. The compounds also exhibit other pharmacological properties, as inhibitors of gastric acid secretion, hypotensives, and bronchodilators. Processes for making the analogs, useful intermediates, and pharmaceutical preparations are also presented.Type: GrantFiled: July 31, 1997Date of Patent: January 11, 2000Assignee: New Pharma International Corp.Inventors: Carlos Alberto Genaro Mamarella, Carlos Alberto Buschi, Silvia Susana Giarcovich
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Patent number: 5990332Abstract: Metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen, a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 may bind together to form an aromatic or aliphatic ring which may have one or more substituents of a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; M represents a metal; m represents an integer of 3 or more; n represents an integer of 2 or more.Type: GrantFiled: December 21, 1998Date of Patent: November 23, 1999Assignee: Orient Chemical Industries, Ltd.Inventors: Kazuaki Sukata, Tohru Tsuruhara, Shun-Ichiro Yamanaka, Shuji Sugawara, Masashi Yasumatsu
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Patent number: 5889132Abstract: A dental material is described which is characterized by a content of silicic acid condensates of norbornene or mercapto silanes, and which, after thiol-ene polymerisation with suitable reactants, shows only slight polymerisation shrinkage and produces polymerisates with high mechanical strength.Type: GrantFiled: May 2, 1997Date of Patent: March 30, 1999Assignee: Ivoclar AGInventors: Volker Rheinberger, Norbert Moszner, Ulrich Salz, Herbert Wolter, Werner Storch, Helma Baeuerlein
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Patent number: 5786493Abstract: Cyclic silane esters and solvolysis products thereof and processes for making these materials. The cyclic silanes and their solvolysis products are useful as adhesives, crosslinking agents and reagents for modifying polymers containing ester groups.Type: GrantFiled: July 16, 1997Date of Patent: July 28, 1998Assignee: Huels AktiengesellschaftInventors: Hartwig Rauleder, Hans-Joachim Koetzsch, Jaroslaw Monkiewicz, Claus-Dietrich Seiler, Hans-Guenther Srebny
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Patent number: 5733895Abstract: This invention relates to a filtering cosmetic composition characterized in that it is comprised, in a cosmetically acceptable carrier, at least one nanopigment of metal oxides selected amongst titanium, zinc, cerium, zirconium, iron oxides or mixtures thereof, having an average diameter lower than 100 nm, and at least one polymer carrying at least one ultraviolet absorbing group selected amongst liposoluble polymers having a hydrocarbonated structure and the polymers of siloxanic structure and such compositions are useful for the protection of human epidermis and hair against UV radiation or as make-up composition.Type: GrantFiled: April 23, 1993Date of Patent: March 31, 1998Assignee: L'OrealInventors: Serge Forestier, Isabelle Hansenne
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Patent number: 5719251Abstract: Organosilicon compounds are described which contain a cyclic organic moiety between at least two reactive silane groups. The compounds are useful in coatings, adhesives, and sealants, and the like.Type: GrantFiled: August 26, 1996Date of Patent: February 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Lech Wilczek, Idisor Hazan, Basil V. Gregorovich
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Patent number: 5705659Abstract: Intermediate compounds represented as formula (I) useful for the synthesis of 16-phenoxy-prostatrienoic acid derivatives and a preparing method thereof are disclosed. ##STR1## wherein R is tetrahydropyranyl, tetrahydrofuranyl, 2-ethoxyethyl, t-butyldimethylsilyl, triisopropylsilyl or triethylsilyl group; R.sup.1 and R.sup.2 are independently hydrogen or ester-forming group; P is hydrogen, trimethylsilyl or tri-n-butyltin; and wavy line means epi-stereoisomeric mixture.Type: GrantFiled: June 20, 1996Date of Patent: January 6, 1998Assignee: Korea Institute of Science and TechnologyInventors: Hokoon Park, Sun Ho Jung, Yong Sup Lee, Ki Hong Nam
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Patent number: 5616744Abstract: A 19-nor intermediate compound of the formula ##STR1## where R is the sidechain of a vitamin D derivative and where X.sub.1 and X.sub.2 are hydrogen or a hydroxy protecting group. The compounds are used in the preparation of 19-nor-vitamin D end products.Type: GrantFiled: May 23, 1995Date of Patent: April 1, 1997Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Fariba Aria
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Patent number: 5616759Abstract: Cyclohexylidene compounds of the structure: ##STR1## where X.sup.1 and X.sup.2, which may be the same or different, is hydrogen or a hydroxy-protecting group, and Y is --POPh.sub.2, or --PO (OAlkyl).sub.2, or --SO.sub.2 Ar, or --Si(Alkyl).sub.3. The compounds are used as intermediates in the preparation of 19-nor-vitamin D compounds.Type: GrantFiled: May 16, 1995Date of Patent: April 1, 1997Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5614596Abstract: A process for the preparation of polymetallooxanes employing inexpensive metal sources such as sand, alumina, and rutile involves dissolving one or more group IIIa, IVa, IVb metaloxy compounds such as metal oxides, metal hydroxides, or hydrates thereof with a di- or polyhydroxyl functional compound in the presence of an amine or alkanolamine. The polymetallooxane products are anionic, neutral, or mixed neutral/anionic moieties, which, when anionic, contain a metallic counterion (cation) or an ammonium or phosphonium ion. Mixed polymetallooxanes, as well as homo polymetallooxanes which may be prepared by the subject process, are suitable for use in preparing coatings, fibers, powders, ceramics, and glasses while being easily processable and economic to manufacture.Type: GrantFiled: January 12, 1995Date of Patent: March 25, 1997Assignee: Regents of University of MichiganInventors: Richard M. Laine, Clint R. Bickmore, Kurt F. Waldner
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Patent number: 5597932Abstract: The invention is drawn to a compound having the following formula ##STR1## in which X.sup.1 and X.sup.2, which may be the same or different, represent hydrogen or a hydroxy-protecting group, X.sup.4 is hydrogen, A is selected from --COOAlkyl and CH.sub.2 OH, and B is a hydroxy group, or A and B, when taken together, represent an oxo group. These compounds are useful as intermediates in the production of 19-nor vitamin D derivatives.Type: GrantFiled: May 16, 1995Date of Patent: January 28, 1997Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5581006Abstract: A convergent synthesis of 19-nor-vitamin D compounds, specifically 19-nor-1.alpha.,25-dihydroxyvitamin D.sub.3, is disclosed. The synthesis can also readily be utilized for preparing other 1.alpha.-hydroxylated 19-nor-vitamin D compounds. The key step in the synthesis is a suitable application of Lythgoe's procedure i.e. a Horner-Wittig reaction of the lithium anion of a phosphine oxide with a Windaus Grundmann ketone to give, after any necessary deprotection, the desired 19-nor-vitamin D compound.Type: GrantFiled: May 16, 1995Date of Patent: December 3, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5563286Abstract: A process is disclosed for the removal of the 4-protected hydroxy group from compounds of the following formula: ##STR1## where A is --COOAlkyl and B is hydroxy, or A and B together represent either oxo or .dbd.CHCOOAlkyl, where X.sup.1 and X.sup.2 are the same or different and represent hydrogen or a hydroxy-protecting group, and where X.sup.3 is ##STR2## with a hydrogen radical source, such as tributyltin hydride or tris(trimethylsilyl)silane, and a radical initiator, such as AIBN or irradiation.Type: GrantFiled: May 16, 1995Date of Patent: October 8, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5525745Abstract: The invention describes intermediates for use in the synthesis of 1.alpha.-hydroxy-19-nor-vitamin D compounds. The intermediates have the following formula: ##STR1## The disclosed process includes (a) the construction of a 5,8-diol-6-yne intermediate by joining ring-A and ring-C/D portions of the desired end product via the condensation of an acetylenic derivative containing the C/D-ring portion of the desired end product with a cyclic dihydroxy ketone representing the A-ring of the desired end product; (b) the partial reduction of the 6,7 acetylenic triple bond linkage between the A and C/D ring portions to obtain a 5,8-diol-6-ene intermediate; and (c) the reductive removal of the 5,8-oxygen functions to generate the required 5,7-diene end product from which the desired 7-trans(7E)-isomer is purified directly, or after optional double bond isomerization of the 7-cis(7Z)-isomer employing a novel thiophenol-promoted isomerization step.Type: GrantFiled: March 27, 1995Date of Patent: June 11, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Fariba Aria
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Patent number: 5492994Abstract: The novel organosiloxane compounds of the present invention are characterized by the presence of 1) a silicon atom containing at least two alkoxy or other hydrolyzable groups and the group --OR.sup.1 Si.dbd. wherein R.sup.1 represents a divalent organic group comprising carbon, hydrogen, and, optionally, oxygen, and 2) a silicon bonded hydrogen atom or alkenyl radical. A preferred method for preparing the compounds is by the reaction of 1) a silane containing a silicon-bonded alkenyloxy group and at least two silicon-bonded hydrolyzable groups or a precursor of said hydrolyzable groups and 2) an organohydrogensiloxane. The reaction is conducted in the presence of a hydrosilation catalyst.Type: GrantFiled: January 12, 1995Date of Patent: February 20, 1996Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5488183Abstract: A synthesis of 1.alpha.-hydroxy-19-nor-vitamin D compounds comprises (a) the construction of a 5,8-diol-6-yne intermediate by joining ring-A and ring-C/D portions of the desired end product via the condensation of an acetylenic derivative containing the C/D-ring portion of the desired end product with a cyclic dihydroxy ketone representing the A-ring of the desired end product; (b) the partial reduction of the 6,7 acetylenic triple bond linkage between the A and C/D ring portions to obtain a 5,8-diol-6-ene intermediate; and (c) the reductive removal of the 5,8-oxygen functions to generate the required 5,7-diene end product from which the desired 7-trans(7E)-isomer is purified directly, or after optional double bond isomerization of the 7-cis(7Z)-isomer employing a novel thiophenol-promoted isomerization step.Type: GrantFiled: May 23, 1995Date of Patent: January 30, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Fariba Aria
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Patent number: 5486565Abstract: The present invention relates to organosiloxane compositions that are reaction products of 1) a silane containing at least 3 hydrolyzable groups per molecule, 2) a monohydric or polyhydric alcohol containing at least one organofunctional group and 3) a polyhydric alcohol containing no organofunctional groups or ethylenic unsaturation, wherein said reaction products contain at least two silicon atoms. The organosiloxane compositions are particularly useful as adhesion promoting additives for curable organosiloxane compositions, particularly those that cure by a platinum group metal-catalyzed hydrosilation reaction.Type: GrantFiled: December 2, 1994Date of Patent: January 23, 1996Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5486636Abstract: New compounds of the formula ##STR1## where Y' represents hydroxy, protected-hydroxy, O-tosyl, O-mesyl, bromine, chlorine, or iodine and X.sup.1 and X.sup.2 may independently represent hydrogen or a hydroxy-protecting group are useful as intermediates for the production of 19-nor vitamin D derivatives, particularly 1.alpha.,25-dihydroxyvitamin D.sub.3, from (-)quinic acid.Type: GrantFiled: October 26, 1994Date of Patent: January 23, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5478955Abstract: The invention is drawn to cholesterol derivatives in which a cyclopentane ring has been introduced onto the 25-carbon of the side chain and to 24-epimers of these compounds. The compounds are useful intermediates in the production of 26,27-dimethylene-1.alpha.,25-dihydroxyvitamin D.sub.2 and 26,27-dimethylene-24-epi-1.alpha.,25-dihydroxyvitamin D.sub.2. These vitamin D derivatives are useful for the treatment of diseases such as osteoporosis.Type: GrantFiled: November 10, 1994Date of Patent: December 26, 1995Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Naoshi Nakagawa
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Patent number: 5475127Abstract: The invention relates to novel organosilyl and organosiloxanyl derivatives of glycerin ethers of the general formula ##STR1## wherein R represents --OH or the --OCH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.3 --CH.dbd.CH.sub.2 group or the --(R.sup.5).sub.a --R.sup.6 group or the --OCH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.5 --R.sub.4 group.Type: GrantFiled: April 3, 1995Date of Patent: December 12, 1995Assignee: Th. Goldschmidt AGInventors: Klaus-Dieter Klein, Wilfried Knott
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Patent number: 5466442Abstract: Silicone derivatives having polysiloxane units represented by the following general formulae (A), (B) and (C): ##STR1## are useful as ingredients in cosmetic compositions.Type: GrantFiled: December 27, 1993Date of Patent: November 14, 1995Assignee: Kao CorporationInventors: Yukihiro Ohashi, Akira Kawamata
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Patent number: 5440011Abstract: Tetra(alkylene oxide)silicate polymers are obtained by reacting pentacoordinate and hexacoordinate silicon complexes with tetra(alkylene) glycol, generally in accordance with the following reaction, as represented by the hexacoordinate species: ##STR1## The resulting polymers are represented by the following general formula: ##STR2## wherein R.sub.1 through R.sub.5 contain a carbon atom bonded directly to an oxygen atom of the above structure and are independently selected from the group consisting of ##STR3## can be taken together to be --CH.sub.2 CH.sub.2 --, with the proviso that at least three or R.sub.1 through R.sub.5 must be, ##STR4## x is 0 or 1, each R.sub.6 is independently selected from H, OH, C.sub.1-6 alkyl, O--C.sub.1-6 alkyl, C.sub.2-6 alkene, C.sub.6-12 aryl, C.sub.1-6 hydroxyalkyl, C.sub.1-6 thioalkyl, C.sub.2-12 alkoxyalkyl, C.sub.Type: GrantFiled: November 9, 1994Date of Patent: August 8, 1995Assignee: Washington Research FoundationInventor: Richard M. Laine
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Patent number: 5424384Abstract: The presence in curable organosiloxane compositions of a specified group of hydrocarbyloxy-substituted organosilicon compounds and condensation products of these compounds imparts cohesive bonding to a variety of substrates during curing of the compositions. At least one hydrocarbyloxy group on each silicon atom is derived from an alcohol containing at least two hydroxyl groups per molecule and the remaining hydrocarbyloxy groups are alkoxy. The adhesion additives are particularly effective for compositions cured at temperatures up to 100.degree. C.Type: GrantFiled: May 10, 1994Date of Patent: June 13, 1995Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5419984Abstract: This invention is directed to the use of polysiloxane acrylates in solid electrolytes containing a solid polymeric matrix. The solid electrolytes are used in electrochemical cells for secondary batteries.Type: GrantFiled: December 16, 1993Date of Patent: May 30, 1995Assignee: Valence Technology Inc.Inventors: Benjamin Chaloner-Gill, M. Neal Golovin
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Patent number: 5418298Abstract: This invention relates to polymetallooxanes having the moiety: ##STR1## wherein n is 1.5, 2, 3, 4, 5 or 6, M.sup.1 is selected from the group consisting of Si, Ge, Sn, Al, Ga, Ti, Zr, or Hf, R.sup.1 and R.sup.2 are selected from the group consisting of H, OH, C.sub.1-8 alkyl, C.sub.1-6 alkoxy, C.sub.2-8 alkene, C.sub.6-12 aryl, C.sub.1-8 hydroxyalkyl, C.sub.1-8 thioalkyl, C.sub.2-12 alkoxyalkyl, C.sub.4-20 heteroaromatic, C.sub.1-10 alkylsilane, C.sub.1-10 alkylsiloxane or combinations thereof, O' is bonded to M.sup.1, another M.sup.1 atom, M.sup.2 or H, wherein M.sup.2 is a group I or II metal of the Periodic Table, and R.sup.3 is independently selected from the group consisting of (CR.sub.2).sub.y, O'--(CR.sub.2 CR.sub.2).sub.y N(CR.sub.2).sub.y --, --(CR.sub.2 CR.sub.2).sub.y N.sub.R (CR.sub.2).sub.y --, O'--[(CR.sub.2 CR.sub.2).sub.y O].sub.y --(CR.sub.2).sub.y, C.sub.1-8 alkyl, C.sub.1-6 alkoxy, C.sub.2-8 alkene, C.sub.6-12 aryl, C.sub.1-8 hydroxyalkyl, C.sub.1-8 thioalkyl, C.sub.2-12 alkoxyalkyl, C.sub.Type: GrantFiled: March 19, 1993Date of Patent: May 23, 1995Assignee: Regents of the University of MichiganInventors: Richard M. Laine, Brian L. Mueller, Tom Hinklin
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Patent number: 5412134Abstract: The protected cyclobutanone of the formula ##STR1## is treated with a dialkylaluminum chloride, an alkylaluminum dichloride, a trialkylaluminum compound, diphenylsilane in the presence of tris(triphenylphosphine) rhodium (I) chloride, or iridium tetrachloride to yield the corresponding diprotected cyclobutanol. This compound is useful as an intermediate in the preparation of antiviral agents.Type: GrantFiled: May 26, 1992Date of Patent: May 2, 1995Assignee: E. R. Squibb & Sons, Inc.Inventors: Janak Singh, Gregory S. Bisacchi, Richard H. Mueller
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Patent number: 5399651Abstract: Adhesion additives for curable organosiloxane compositions comprise (I) a silane containing at least one alkoxy or enoloxy group, the remaining valences of the silicon atom being satisfied by groups bonded to silicon through oxygen and containing at least one H.sub.2 C.dbd.CR-- radical, where R is hydrogen or monovalent hydrocarbon, and (II) at least one organosilicon compound comprising (a) at least one group capable of participating in a hydrosilation reaction, and (b) at least one silicon-bonded alkoxy, enoloxy or silanol group.Type: GrantFiled: May 10, 1994Date of Patent: March 21, 1995Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5391755Abstract: A convergent synthesis of 19-nor-vitamin D compounds, specifically 19-nor-1.alpha.,25-dihydroxyvitamin D.sub.3, is disclosed. The synthesis can also readily be utilized for preparing other 1.alpha.-hydroxylated 19-nor-vitamin D compounds. The key step in the synthesis is a suitable application of Lythgoe's procedure i.e. a Horner-Wittig reaction of the lithium anion of a phosphine oxide with a Windaus Grundmann ketone to give, after any necessary deprotection, the desired 19-nor-vitamin D compound.Type: GrantFiled: January 13, 1994Date of Patent: February 21, 1995Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rolf E. Swenson
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Patent number: 5371262Abstract: Novel hydroxymethyltrialkoxysilanes of the formula: ##STR1## are produced by transesterifying a carboxylic acid ester of hydroxymethyltrialkoxysilane with an alcohol, and distilling the reaction mixture to remove the carboxylate of the alcohol. The carboxylic acid ester of hydroxymethyltrialkoxysilane is prepared by the reaction of an alkali metal carboxylate with chloromethyltrialkoxysilane, which in turn is prepared by the reaction of a trialkylorthoester with chloromethyltrichlorosilane by heating to reflux with removal of alkylchloride, followed by distillation to remove alkyl ester. The hydroxymethyltrialkoxysilanes and carboxylic acid esters thereof, as well as carboxymethyltrialkoxysilanes, are particularly useful in sol-gel processing by undergoing hydrolysis to yield hydroxymethylsilanetriol, and subsequent hydrolysis and polycondensation products.Type: GrantFiled: March 10, 1993Date of Patent: December 6, 1994Assignee: Gelest, Inc.Inventor: Barry C. Arkles
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Patent number: 5367090Abstract: New polymers are disclosed to be made in supported Ziegler-Natta systems. They include monomers exhibiting polar functionality such as through a hydroxyl group or other functional group protected during polymerization in the presence of highly active catalysts by the use of a protective alkyl silane group which is removed after polymerization to restore the functionality of the group. The typical polymer thus made is a polyolefin having functional groups on its backbone; the functional groups may be reacted with conventional dyes and/or may perform other functions and enter reactions with other reactive compounds.Type: GrantFiled: February 24, 1993Date of Patent: November 22, 1994Assignee: Aristech Chemical CorporationInventors: Andrew J. Sivak, Leonard A. Cullo
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Patent number: 5312937Abstract: The present invention relates to a method for preparing a platinum-organosiloxane complex which comprises (I) reacting (a) a platinous halide having an average crystal size of less than 2500 Angstroms and (b) an organosiloxane having from 2 to 4 silicon- bonded organic groups having from 2 to 6 carbon atoms and having terminal olefinic unsaturation, the remaining silicon- bonded organic substituents being selected from alkyl groups having from 1 to 6 carbon atoms and phenyl groups, wherein said reaction is carried out in the presence of a polar organic liquid which is at least a partial solvent for platinous halide, and (II) neutralizing the reaction mixture of (I). The complexes of the instant invention are useful as catalysts for hydrosilylation reactions.Type: GrantFiled: October 7, 1993Date of Patent: May 17, 1994Assignee: Dow Corning CorporationInventors: Steven H. Waier, ChiTang Li, Donna Gyles-Mayon
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Patent number: 5300705Abstract: A process for preparing 1.alpha.,25(R),26-trihydroxy-22E-ene-cholecalciferol and 1.alpha.,25(S),26-trihydroxy-22E-ene-cholecalciferol.Type: GrantFiled: March 18, 1993Date of Patent: April 5, 1994Assignee: Hoffmann-La Roche Inc.Inventor: Masami Okabe