Chalcogen Bonded Directly To Plural Carbons Or Double-bonded Directly To Carbon Patents (Class 556/416)
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Patent number: 4956472Abstract: An oxygen bleach composition which includes a peroxy bleach component selected from the group consisting of perborates, persulfates, persilicates, perphosphates, and percarbonates, and an organic oxygen bleach activator component capable of reacting with the peroxy bleach component to produce an active peroxy acid, the activator being selected from the group consisting of acetamide functional organosilicon compounds and succinimide functional organosilicon compounds.Type: GrantFiled: February 6, 1990Date of Patent: September 11, 1990Assignee: Dow Corning CorporationInventors: Sunny J. Lo, Terence J. Swihart, Andrew H. Ward
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Patent number: 4954534Abstract: An organosilicon compound having general formula (I) ##STR1## wherein R.sup.1 represents fluorine; l is an integer of 1 to 5; R.sup.2 represents a lower alkyl group, a lower unsaturated alkyl group or an aromatic group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represent hydrogen, halogen, an alkyl group, an aryl group, a nitro group, a cyano group, and an alkoxyl group, which may be the same or different; m is an integer of 0 to 2, when m is 2, each R.sup.2 may be the same or different; and n is an integer of 1 to 3, provided that m+n is not more than 3 (m+n.ltoreq.3), and a photopolymerizable epoxy resin composition prepared by mixing an epoxy resin component, the above photodecomposing organosilicon compound, and an aluminum compound are disclosed.Type: GrantFiled: July 15, 1988Date of Patent: September 4, 1990Assignee: Ricoh Company, Ltd.Inventor: Tetsu Yamamuro
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Patent number: 4943648Abstract: Process for preparing a silyl ketene acetal adduct, the process comprising contacting and reacting a silyl ketene acetal and an .alpha.,.beta.-unsaturated compound in the presence of a mercury- or Lewis acid-containing catalyst, for example, HgI.sub.2.Type: GrantFiled: April 1, 1988Date of Patent: July 24, 1990Assignee: E. I. du Pont de Nemours and CompanyInventor: Ira B. Dicker
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Patent number: 4931581Abstract: A method and composition for the immunization of healthy useful plants against plant diseases containing as active ingredients compounds of formula ##STR1## in which: X is hydrogen, halogen, hydroxy, methyl, methoxy, HOOC or MOOC;Y is hydrogen, halogen, SO.sub.3 H, SO.sub.3 M, nitro, hydroxy or amino, M being the molar equivalent of an alkali metal or alkaline earth metal ion that is formed from a corresponding base or basic compound; andZ is cyano or --CO--A;A represents either --OH or --SH, the hydrogen atom of which may also be replaced by the molar equivalent of an inorganic or organic cationic residue,or wherein A represents any other organic residue which has a molecular weight of less than 900 and which may also contain one, or more than one, hetero atom, including the salts of the phytophysiologically tolerable 7-carboxylic acid or 7-thiocarboxylic acid with primary, secondary or tertiary amines or with inorganic bases.Type: GrantFiled: August 18, 1988Date of Patent: June 5, 1990Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Walter Kunz, Robert Nyfeler
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Patent number: 4918197Abstract: A method is provided for silylating aromatic acylhalide by effecting reaction between an aromatic acylhalide and halogenated polysilane in the presence of an effective amount of a supported transition metal catalyst, such as a transition metal catalyst supported by an organic or inorganic substrate.Type: GrantFiled: August 15, 1988Date of Patent: April 17, 1990Assignee: General Electric CompanyInventors: Jonathan D. Rich, Terry E. Krafft, Philip J. McDermott
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Patent number: 4900474Abstract: An antifoamer which comprises a polyperfluoroether group-containing organopolysiloxane comprising from 20 to 100 mole % of the polyperfluoroether group-containing organopolysiloxane units of a specific type is described. The content of fluorine atoms in the polyperfluoroether group-containing organopolysiloxane is in the range of from 20 to 70 wt % by which foams of organic solvent systems can be inhibited to a substantial extent.Type: GrantFiled: July 15, 1988Date of Patent: February 13, 1990Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Nobuyuki Terae, Teiichi Mutoh, Akira Yoshida
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Patent number: 4900349Abstract: A compound of the general formula (I): ##STR1## wherein R is C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl, both optionally substituted by lower alkyl, halogen or trialkylsilyl; E is CN or CSNH.sub.2 ; and Y is C.sub.1 -C.sub.4 alkoxy, C.sub.3 -C.sub.4 alkenyloxy, C.sub.3 -C.sub.4 alkynyloxy, 1-pyrazolyl or 2-furyl. The compounds have fungicidal and plant growth regulating activity.Type: GrantFiled: April 5, 1988Date of Patent: February 13, 1990Assignee: Imperial Chemical Industries PLCInventors: Stephen P. Heaney, Patrick Crowley, Lawrence G. Reynolds
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Patent number: 4898977Abstract: The invention relates to novel processes and intermediates for the preparation of 5-amino-4-hydroxyvaleric acid derivatives of the formula ##STR1## in which R.sup.1 represents hydrogen, optionally substituted alkyl, cycloalkyl, cycloalkyl-lower alkyl, aryl, aryl-lower alkyl or the radical of a natural amino acid, R.sup.2 represents hydrogen, optionally substituted alkyl, cycloalkyl, cycloalkyl-lower alkyl, aryl, aryl-lower alkyl, amino, hydroxy, mercapto, sulphinyl, sulphonyl or the radical of a natural amino acid, and R.sup.3 represents optionally substituted hydroxy or amino, by sigmatropic rearrangement of a suitable allyl ester, halolactonisation of the resulting .gamma.,.delta.-unsaturated acid or of a suitable derivative thereof, exchange of halogen for a nitrogen-containing nucleophile, opening of the lactone ring and freeing of the amino group. Compounds of the formula I are starting materials for the preparation of renin-inhibitors which have an anti-hypertensive action.Type: GrantFiled: August 13, 1987Date of Patent: February 6, 1990Assignee: Ciba-Geigy CorporationInventors: Peter Herold, Christof Angst
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Patent number: 4894468Abstract: The invention relates to modified silica, substituted with a variety of substituents. There is provided a product termed primary hydroxyl silica where there are attached to the silica substituents bearing a single hydroxyl group. Furthermore there are provided a wide variety of derivatives of such hydroxy-silica, which are of value in affinity chromatography and for various other uses. The products combine the thermal and mechanical stability of the silica used as carrier with the useful properties of the substituents.Type: GrantFiled: May 1, 1987Date of Patent: January 16, 1990Assignee: Yeda Research and Development Co., Ltd.Inventors: Meir Wilchek, Karin Cabrera
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Patent number: 4892962Abstract: The reaction of allyl bromo- or chloro-difluoroacetates with monochlorisilanes in the presence of zinc with heating gives silyl esters of .alpha.,.alpha.-difluoro-.gamma.,.delta.-pentenoic acids. The free acids, from which acid derivatives can be prepared by conventional methods, are obtained by hydrolysis. The pentenoic acids and pentenoic acid derivatives are suitable for the preparation of polymers and copolymers, from which metal-organic polymers and copolymers having catalytic properties are obtainable.Type: GrantFiled: December 7, 1987Date of Patent: January 9, 1990Assignee: Ciba-Geigy CorporationInventor: Robert W. Lang
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Patent number: 4831177Abstract: Compounds of formula X ##STR1## in which R.sub.6 is aryl, R.sub.7 is hydrogen, --OH or alkyl, R.sub.8 is alkyl, R.sub.9 is hydrogen, alkyl, alkenyl, aryl, furyl or --CCl.sub.3, when n is 1, R.sub.10 is alkyl, aryl, camphoryl, --CF.sub.3 or fluoro, or when n is 2, R.sub.10 is alkylene or arylene are latent curing catalysts for acid-curable stoving varnishes. On irradiation, the active curing catalysts which lead to acid-catalysed curing of the resins are formed from the compounds of the formula x.Type: GrantFiled: May 4, 1987Date of Patent: May 16, 1989Assignee: Ciba-Geigy CorporationInventors: Rudolf Kirchmayr, Werner Rutsch
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Patent number: 4822901Abstract: Novel substituted organosilicon carboxylates characterized by the following formula: ##STR1## wherein M is a monovalent cation: Z represents a moiety hydrolyzable to silanol; R.sup.Type: GrantFiled: November 30, 1987Date of Patent: April 18, 1989Assignee: Union Carbide CorporationInventors: Paul H. Mohr, Enrico J. Pepe
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Patent number: 4820829Abstract: There are disclosed novel substituted o-phthalaldehydes of formula I ##STR1## wherein at least one of the substituents R.sub.1, R.sub.2, R.sub.3, R.sub.4 is Q(alkyl).sub.3, --CH.sub.2 --Q(alkyl).sub.3, --O--Q(alkyl).sub.3, --Q(aryl).sub.3 or --Q(alkylenearyl).sub.3, wherein Q is Si, Sn or Ge, the alkyl moieties contain 1 to 12 carbon atoms, the aryl groups contain 6 or 12 ring carbon atoms and the alkylene radicals contain 1 to 4 carbon atoms, and each of the remaining substituents R.sub.1 to R.sub.4 is a hydrogen or halogen atom or a cyano, nitro, carboxyl or hydroxyl group, a C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio or an alkoxycarbonyl group containing 1 to 4 carbon atoms in the alkoxy moiety.The novel o-phthalaldehydes can be polymerized to give polymers that can be used as photoresists.Type: GrantFiled: January 8, 1987Date of Patent: April 11, 1989Assignee: Ciba-Geigy CorporationInventor: Alfred Steinmann
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Patent number: 4812588Abstract: Bisbenzocyclobutene monomers bridged by a polyorganosiloxane group. The monomers are liquid at room temperature.Type: GrantFiled: December 14, 1987Date of Patent: March 14, 1989Assignee: The Dow Chemical CompanyInventor: Alan K. Schrock
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Patent number: 4778909Abstract: Fast high resolution separations of biopolymers with retention of biological activity have been achieved by hydrophobic interaction chromatography using trialkoxy silyl ethers of the general formula(RO).sub.3 Si--(CH.sub.2).sub.m --O--(CH.sub.2 CH.sub.2 O).sub.n --(CH.sub.2).sub.p R'chemically bonded to silica-based chromatographic supports. In the formula R is alkyl of from one to five carbons, m is an integer from two to five, n is an integer from one to five, p is an integer from zero of ten, and R' is methyl, phenyl, or substituted phenyl. Stable and reproducible bonded phases are prepared in a novel solventless procedure by a bonding process which uses a defined and controlled amount of water on the silica surface and a gaseous or volatile basic catalyst such as ammonia to produce a controlled amount of silane polymerization and cross-linking in addition to extensive bonding between silane and silica.Type: GrantFiled: May 11, 1984Date of Patent: October 18, 1988Assignee: Northeastern UniversityInventors: Barry L. Karger, Binyamin Feibush, Neil T. Miller, Alvaro Figueroa
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Patent number: 4777276Abstract: A composition of matter comprising an acrylamido-acyl or methacrylamido-acyl oligomer derived from at least one nucleophilic oligomer having at least one amino-, hydroxyl-, or thiol-substituted polyoxyalkylene, polyalkyleneimine, polyester, polyolefin, polyacrylate, or polysiloxane oligomer, said nucleophilic oliogmer having a molecular weight in the range of 200 to 20,000 is disclosed. Also disclosed are free radically polymerizable monomer-containing compositions containing said oligomers as well as acrylamido- and methacrylamido-acylated polymers which are the thermal or photocured products of said oligomers. In addition, a process is disclosed for providing said acrylamido- and methacrylamido-acylated oligomers which are useful, for example, in coatings, films, printing inks, adhesives, and saturants.Type: GrantFiled: October 29, 1981Date of Patent: October 11, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jerald K. Rasmussen, Steven M. Heilmann, Frederick J. Palensky
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Patent number: 4774028Abstract: Non-crosslinked, branched liquid crystalline organosilicon compounds exhibit the general formula(R.sub.3 SiO.sub.1/2).sub.w (R.sub.2 SiO).sub.x (RSiO.sub.3/2).sub.y (SiO.sub.4/2).sub.zwhere at least one R represents a mesogenic (liquid crystal forming) group, the remaning R represent monovalent hydrocarbon or halohydrocarbon radicals, w represents an integer having a value of at least 1, x, y, and z individually represent an integer including zero, the sum of x and y is at least 1 and the sum of w, x, y, and z is from 4 to 50, inclusive.Type: GrantFiled: May 23, 1985Date of Patent: September 27, 1988Assignee: Toray Silicone Co., Ltd.Inventors: Takeshi Imai, Naoyuki Koide
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Patent number: 4744812Abstract: Substituted diphenyl ethers of the formula ##STR1## where Z.sub.1, Z.sub.2 and Z.sub.3 are hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or haloalkylsulfonyl, Z.sub.4 is hydrogen, cyano, alkyl, alkoxy, acetoxy or alkylmercapto, Y is hydrogen, halogen, cyano or nitro, X is oxygen, sulfur, sulfinyl or sulfonyl, and A is hydrogen, unsubstituted or substituted alkyl ##STR2## and can also be sulfonyl ##STR3## when X is oxygen, and, when Z.sub.4 is alkoxy or alkylmercapto, can also be a methylene chain --(CH.sub.2).sub.m -- by which the radicals Z.sub.4 --CH--X-- are bonded to form a ring, R.sub.1 is hydrogen, methyl, ethyl or n-propyl, R.sub.2 is cyano, methoxy, ethoxy or ##STR4## where B is OH, ONa, O--alkyl, unsubstituted or substituted phenoxy, --NH.sub.2, --NH--alkyl or --N(alkyl).sub.2, n is 1, 2 or 3, R.sub.3 and R.sub.Type: GrantFiled: March 4, 1985Date of Patent: May 17, 1988Assignee: BASF AktiengesellschaftInventors: Adolf Parg, Bruno Wuerzer, Gerhard Hamprecht
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Patent number: 4730904Abstract: Organosilicon compounds of the formula IR.sup.1 --A.sup.1 --A.sup.2 --O--C.sub.n H.sub.2n --SiX.sub.a Y.sub.b Z.sub.c Iwherein R.sup.1, A.sup.1, A.sup.2, X, Y, Z, n, a, b and c have the meaning given can be used for producing a homotropic orientation of liquid crystal phases on surfaces.Type: GrantFiled: June 13, 1986Date of Patent: March 15, 1988Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Detlef Pauluth, Klaus Bofinger, Michael Romer, Bernhard Scheuble, Georg Weber
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Patent number: 4709054Abstract: A method is provided for silylating organic substrates, utilizing a halogenated polysilane, such as 1,1,2,2-tetrachloro dimethyldisilane and an aromatic acyl halide, for example, trimellitic anhydride acid chloride in the presence of a transition metal catalyst.Type: GrantFiled: August 13, 1985Date of Patent: November 24, 1987Assignee: General Electric CompanyInventor: Jonathan D. Rich
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Patent number: 4701277Abstract: A silicone/silicate-containing antifreeze characterized by dilute aqueous stability includes substituted organosilicon carboxylates characterized by the following formula: ##STR1## wherein M is a monovalent cation such as, for example, sodium; Z represents a moiety hydrolyzable to silanol; R.sup.1 represents hydrogen, a monovalent hydrocarbon radical such as methyl, ethyl, phenyl, and the like or a substituted monovalent hydrocarbon radical; a has a value from 0 to 20, b has a value of 1 or 2, c has a value of 0 or 1, n has a value of 2, 3, or 4, and m has a value of from 3 to 15 when a is other than 0 and from about 7 to about 15 when a is 0.Type: GrantFiled: April 24, 1986Date of Patent: October 20, 1987Assignee: First Brands CorporationInventors: Paul H. Mohr, Enrico J. Pepe
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Patent number: 4697027Abstract: A method for purifying alkoxysilane with the general formula, R.sub.m Si(OR.sup.1).sub.4-m. The method significantly lowers the level of non-hydrolyzable chlorine-based impurities, as well as the level of hydrolyzable chlorine-based impurities. The method comprises: (i) heating the alkoxysilane in the presence of a treating agent selected from a group which consists of acid clays and metal halides; (ii) contacting the alkoxysilane with a neutralization agent; and (iii) separating the alkoxysilane from the unused neutralization agent and by-products of neutralization.Type: GrantFiled: October 27, 1986Date of Patent: September 29, 1987Assignee: Toray Silicon Co., Ltd.Inventors: Junpei Sugihara, Takeshi Imai, Shuzo Toida, Ikuzo Takahashi
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Patent number: 4678283Abstract: Trialkanoyloxysilanes of the formula IR.sup.1 --A.sup.1 --A.sup.2 --O--C.sub.n H.sub.2n --Si(OOCR.sup.2) 3 Iwherein R.sup.1 is H or an alkyl group of 1-10 c atoms, wherein one or two non-adjacent CH.sub.2 groups may also be replaced by oxygen atoms, or is F, Cl, Br or CN, R.sup.2 is an alkyl group of 1-5 atoms, A.sup.1 and A.sup.2 are each 1,4-phenylene or 1,4-cyclohexylene groups and n is 2, 3, 4, 5 or 6, can be used for generating a homeotropic orientation of liquid-crystalline phases on surfaces.Type: GrantFiled: September 4, 1984Date of Patent: July 7, 1987Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Franz-Heinrich Kreuzer, Rudolf Eidenschink, Georg Weber
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Patent number: 4647413Abstract: Perfluoropolyether oligomers or block polymers, having a backbone with one or a plurality of perfluoropolyether segments each consisting essentially of (1) at least one perfluoroisopropyleneoxy unit, (2) a bis(perfluoromethyleneoxy-terminated) unit, and (3) a perfluoroethylidene unit terminating each segment, the backbone of the perfluoropolyether being terminated with COF and/or a functional or nonfunctional derivative thereof, said perfluoropolyethers being made by reacting a perfluoroaliphatic diacid fluoride with hexafluoropropylene epoxide to produce an acid fluoride-terminated perfluoropolyether adduct or oligomer which then can be photopolymerized to yield an acid fluoride-terminated perfluoropolyether block polymer. These oligomers and block polymers are useful as high temperature lubricants, hydraulic fluids, gaskets, adhesives and coatings as well as co-reactants wtih urethane in forming propellant binders.Type: GrantFiled: January 20, 1984Date of Patent: March 3, 1987Assignee: Minnesota Mining and Manufacturing CompanyInventor: Patricia M. Savu
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Patent number: 4623740Abstract: The invention is directed to N,N' and N,N',N'-substituted silylureas and a process for their production in which in a single step process there are reacted a halogenoalkylsilane or a halogenbenzylsilane with a primary or secondary amine and an alkali cyanate in equimolar amounts.Type: GrantFiled: July 1, 1985Date of Patent: November 18, 1986Inventors: Ulrich Deschler, Wolfgang Buder, Peter Kleinschmit, Rudolf Michel
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Patent number: 4611067Abstract: This invention relates to a novel process for the preparation of 3-hydroxy-3-methylglutarylcoenzyme A (HMG-CoA) reductase inhibitors which contain a 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety, such as compactin and mevinolin, by utilizing an alkyl 4-cyano-3(R)-hydroxybutanoate as a chiral synthon for the stereospecific introduction of the 4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one moiety.Type: GrantFiled: January 31, 1985Date of Patent: September 9, 1986Assignee: Merck & Co., Inc.Inventors: Ralph P. Volante, Thomas R. Verhoeven, Meyer Sletzinger, James M. McNamara, Thomas M. H. Liu, Edward G. Corley
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Patent number: 4596882Abstract: Modified silacrown ethers are formed having the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are organic radicals, hydrogen or groups which actively assist in the complexing of metal cations, n is an integer between 3 and 10 inclusive, and R.sup.3 is hydrogen or lower alkyl. These modified silacrown ethers are prepared by reacting a polyalkylene glycol with substituted silanes under conditions promoting cyclization over polymerization. The modified silacrown ethers are useful for forming cation complexes and promoting anionic reactions, particularly in phase transfer reactions either in solution or immobilized on siliceous supports.Type: GrantFiled: February 15, 1984Date of Patent: June 24, 1986Assignee: Petrarch Systems Inc.Inventors: Barry C. Arkles, Kevin M. King
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Patent number: 4581375Abstract: The present invention relates to new substituted hydroxy-malonic acid amide-thioamides of the formula (I) ##STR1## in which R represents optionally substituted alkyl, optionally substituted alkenyl, optionally substituted cycloalkyl, optionally substituted aryl or optionally substituted heteroaryl,and a process for their preparation and their use as agents for combating pests, in particular insecticides and acaricides.Type: GrantFiled: February 24, 1984Date of Patent: April 8, 1986Assignee: Bayer AktiengesellschaftInventors: Rudolf Fauss, Kurt Findeisen, Benedikt Becker, Ingeborg Hammann, Bernhard Homeyer
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Patent number: 4536353Abstract: A process for preparing an .alpha.-ketonitrile of the formula ##STR1## in which R is optionally substituted aryl, comprising reacting a cyanohydrin of the formula ##STR2## with sulphuryl chloride or thionyl chloride.Type: GrantFiled: November 2, 1984Date of Patent: August 20, 1985Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Kurt Findeisen
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Patent number: 4481365Abstract: A trifluoromethyl-phenoxy-phenyl-silicon compound is disclosed of the general formula ##STR1## in which X.sup.1 and X.sup.2 independently of each other represent a hydrogen, fluorine, chlorine, bromine or iodine atom,Y represents a hydrogen or halogen atom or a cyano or nitro group,n is 0 or 1,m is 0, 1, 2 or 3,p is 0, 1, 2 or 3,X.sup.3 and X.sup.4 independently of each other represent oxygen or a --CO--O-- group,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent a hydrogen atom or a C.sub.1 to C.sub.5 alkyl group,R.sup.5 and R.sup.6 independently of each other represent a C.sub.1 to C.sub.5 alkyl group, andR.sup.7 represents a C.sub.1 to C.sub.5 alkyl or hydroxyl group, a chlorine, bromine, or iodine atom or a C.sub.2 to C.sub.5 alkenoxy, C.sub.2 to C.sub.5 alkinoxy,C.sub.1 to C.sub.5 alkylthio, C.sub.2 to C.sub.5 alkenyl-thio or C.sub.2 to C.sub.5 alkinyl-thio group or a C.sub.1 to C.sub.Type: GrantFiled: October 12, 1982Date of Patent: November 6, 1984Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Ludwig Eue, Robert Schmidt, Klaus Lurssen
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Patent number: 4436924Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.This invention relates to new, improved ultraviolet light absorbing agents, as well as to articles primed and thereafter coated with compositions containing such agents. The novel compounds of this invention are silanolreactive alkoxysilyl- or alkanoyloxysilylalkyl ether adducts of aromatic ultraviolet absorbing agents.Type: GrantFiled: September 23, 1982Date of Patent: March 13, 1984Assignee: General Electric CompanyInventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4399296Abstract: Hypoglycemic 5-phenyl and 5-naphthyl oxazolidine-2,4-diones and the pharmaceutically-acceptable salts thereof; certain 3-acylated derivatives thereof; a method of treating hyperglycemic animals therewith; and intermediates useful in the preparation of said compounds.Type: GrantFiled: March 1, 1982Date of Patent: August 16, 1983Assignee: Pfizer Inc.Inventor: Rodney C. Schnur
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Patent number: 4378459Abstract: Organopolysiloxane lubricant compositions comprising a polysiloxane chain containing silicon-bonded hydrocarbon radicals and silicon-bonded ester radicals. The ester functional organopolysiloxanes are obtained by reacting an allyl ester, by Si-olefin addition, with an organohydrogenpolysiloxane in the presence of a platinum catalyst.Type: GrantFiled: September 5, 1980Date of Patent: March 29, 1983Assignee: General Electric CompanyInventors: Bruce B. Hardman, Frank J. Traver
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Patent number: 4363925Abstract: Aromatic silanes are prepared by reacting an aromatic halogen compound with a disilane in the presence of a palladium complex and a phosphite or phosphine.The aromatic silanes obtainable by the process of the invention are valuable intermediates for the preparation of drugs, dyes and pesticides.Type: GrantFiled: January 15, 1982Date of Patent: December 14, 1982Assignee: BASF AktiengesellschaftInventors: Rolf-Dieter Acker, Gerhard Hamprecht, Franz-Josef Mueller
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Patent number: 4360467Abstract: The preparation of racemic 1R, 4R, 5R-5-(4', 8'-dimethyl-5'-hydroxy-7'-nonenyl)-5-methyl-8-oxabicyclo[3.2.1]-octane-1-a cetic acid is described. The cycloheptane compounds are active uteroevacuant agents.Type: GrantFiled: September 8, 1981Date of Patent: November 23, 1982Assignee: Ortho Pharmaceutical CorporationInventor: Ramesh M. Kanojia
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Patent number: 4357473Abstract: Described is a process for exchanging some or all of the radicals R' in alkoxysilane cluster compounds with different radicals R"; this process being based on the following reaction: ##STR1## wherein R is hydrogen, an alkyl, an alkenyl, and an aryl, or an aralkyl; and each R' is independently selected from the same groups as R with the proviso that at least a majority of said R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and each R" is selected from groups consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups, functionally substituted alkyl, alkenyl, aryl and aralkyl groups, and polyoxyalkylene groups with the proviso that R" radicals are different than R' radicals; and n is a number from 1 to 9.Type: GrantFiled: November 1, 1979Date of Patent: November 2, 1982Assignee: Olin CorporationInventor: Karl O. Knollmueller
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Patent number: 4352917Abstract: Silylated organic polymers which may be applied to textile materials to impart hydrophilic properties thereto are prepared by reacting polymeric organic acids with silylated aminofunctional polyethers. The resultant composition may then be crosslinked to impart durable hydrophilic properties to textile materials treated therewith.Type: GrantFiled: September 18, 1980Date of Patent: October 5, 1982Assignee: SWS Silicones CorporationInventor: Jeffrey A. Tripp
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Patent number: 4321400Abstract: There are provided ultraviolet light absorbing agents of the formula ##STR1## wherein: ##STR2## Y is H or OH; Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CONH(CH.sub.2).sub.3 Si(R.sub.2).sub.x (OR.sub.1).sub.y or --COHN(CH.sub.2).sub.3 Si(R.sub.2).sub.x (OCOR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 and R.sub.2, independently, are each alkyl having 1 to 6 carbon atoms and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.Type: GrantFiled: May 30, 1980Date of Patent: March 23, 1982Assignee: General Electric CompanyInventor: Bruce A. Ashby
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Patent number: 4307240Abstract: Alkoxysilylacrylamides, alkoxysilylacrylates and alkoxysilylbenzylidene malonates are provided and a method for making such materials. These alkoxysilanes have been found useful as UV stabilizers and as adhesion promoters when incorporated into silicone compositions useful as top coats for thermoplastic organic polymers.Type: GrantFiled: May 30, 1980Date of Patent: December 22, 1981Assignee: General Electric CompanyInventor: Ta-Yen Ching
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Patent number: 4281144Abstract: In the preparation of multi-branched equilibrated mixed acyloxy-containing and chlorine-containing organo polysiloxanes by reacting a chlorosilane of the formulaR.sub.a SiCl.sub.4-awhereina=0 or 1,with at least one organosiloxane containing units of the formulaR.sub.2 R'SiO.sub.1/2, RR'SiO, R'SiO.sub.3/2 and/or SiO.sub.2whereinR is hydrogen or an aliphatic, aromatic, saturated or unsaturated, optionally halogen-substituted or cyano-substituted monovalent hydrocarbon radical with up to 8 C atoms andR' is chlorine, hydroxyl, hydrogen or an aliphatic, aromatic, saturated or unsaturated, optionally halogen-substituted or cyano-substituted monovalent hydrocarbon radical with up to 8 C atoms,in proportions such that the number of all the SiCl groups is always at least 1.5 times greater than the number of SiOH groups, in the presence of (a) fluoroalkanesulphonic acid or salt thereof and (b) relative to the chlorine atoms bonded to silicon, at least 1.Type: GrantFiled: April 28, 1980Date of Patent: July 28, 1981Assignee: Bayer AktiengesellschaftInventors: Armand de Montigny, Hans-Heinrich Moretto
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Patent number: 4278804Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: X is ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.Type: GrantFiled: May 30, 1980Date of Patent: July 14, 1981Assignee: General Electric CompanyInventors: Bruce A. Ashby, Siegfried H. Schroeter
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Patent number: 4276402Abstract: Monomeric polysiloxanes end-capped with activated unsaturated groups polymerized with acrylic acid and a comonomer comprising a polycyclic ester of acrylic acid or methacrylic acid to form a hydrophilic, water absorbing contact lens is disclosed. These polysiloxane polymer contact lenses are unexpectedly capable upon hydration of retaining from 1 percent to about 99 percent by weight of water, based upon the total weight of the dry, i.e., unhydrated polymer.Type: GrantFiled: September 13, 1979Date of Patent: June 30, 1981Assignee: Bausch & Lomb IncorporatedInventors: Richard C. Chromecek, William G. Deichert, Joseph J. Falcetta, Martin F. VanBuren
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Patent number: 4218378Abstract: The present invention provides novel 11a-methano-TXA compounds and intermediates and processs for their preparation. Further provided are methods for using these novel TXA analogs as inhibitors of thromboxane synthetase, rendering these analogs useful for a variety of pharmacological purposes. These pharmacological uses include anti-inflammatory, anti-thromobitc, and anti-asthma indications.Type: GrantFiled: May 1, 1979Date of Patent: August 19, 1980Assignee: The Upjohn CompanyInventor: Gordon L. Bundy
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Patent number: 4213914Abstract: The invention provides organosilicon compounds of the formula: ##STR1## in which: n is 1, 2 or 3;each R, which may be identical or different, is a monovalent organic group which contains a carbon-carbon double bond and from 2 to 10 carbon atoms;each R.sub.1, which may be identical or different, is a straight or branched alkyl radical optionally substituted by one or more halogen atoms or cyano groups; an aryl radical or an alkylaryl radical optionally substituted by one or more halogen atoms;R.sub.2 is a straight or branched divalent alkylene or alkylidene radical possessing up to 4 carbon atoms;X is a divalent radical consisting of, or containing, at least one hetero-atom selected from oxygen, sulphur and nitrogen atoms, the radical being attached to the radical R.sub.2 via a said hetero-atom;G is an organic radical of valency (m+1) possessing from 1 to 30 carbon atoms;m is 1, 2 or 3;and each Y, which may be identical or different, is a functional group selected from: --NO.sub.Type: GrantFiled: December 1, 1978Date of Patent: July 22, 1980Assignee: Rhone-Poulenc IndustriesInventors: Michel Bargain, Marcel Lefort
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Patent number: 4202988Abstract: This disclosure describes derivatives, analogs, and congeners of prostanoic acid having a terminal cyclic moiety in the .beta.-chain which possess the pharmacological activities associated with the prostaglandins.Type: GrantFiled: March 30, 1977Date of Patent: May 13, 1980Assignee: American Cyanamid CompanyInventors: Allan Wissner, Martin J. Weiss, Karel F. Bernady