Carbon To Carbon Unsaturation Containing Patents (Class 558/462)
- Utilizing ion exchange resin, or a silicon, aluminum, or heavy metal containing material (Class 558/464)
- Of nitriles prepared by hydrocyanation (e.g., by reaction of acetylene with hydrogen cyanide, etc.) (Class 558/465)
- Of nitriles prepared by reaction of an organic compound, ammonia, and molecular oxygen or a molecular oxygen-containing gas (i.e., of nitriles prepared by ammoxidation) (Class 558/466)
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Patent number: 9890113Abstract: A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.Type: GrantFiled: September 15, 2015Date of Patent: February 13, 2018Assignee: BASF SEInventors: Rolf-Hartmuth Fischer, Robert Baumann, Veronika Wloka, Hermann Luyken
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Patent number: 9586892Abstract: Pentenenitrile oligomers formed in a process for isomerizing cis-2-pentenenitrile to 3-pentenenitrile are minimized in the presence of an aluminum oxide catalyst. The process comprises providing an aluminum oxide catalyst having an alkali metal and/or alkaline earth metal and/or iron content, measured in the form of alkali metal oxide and/or alkaline earth metal oxide and/or iron oxide, respectively of less than 5000 ppm by weight.Type: GrantFiled: December 5, 2013Date of Patent: March 7, 2017Assignee: INVISTA NORTH AMERICA S.A.R.L.Inventors: Sudhir N. V. K. Aki, William J. Tenn, III, Thomas E. Vos
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Patent number: 9029587Abstract: There is provided a method for producing an aqueous acrylamide solution by reacting a composition including acrylonitrile with water to produce acrylamide, in which the composition including acrylonitrile includes 3 to 15 mg of propionitrile per 1 kg of the total weight of the composition including acrylonitrile. According to the present invention, a production method with which it is possible to suppress acrylamide polymerization without lowering quality and thereby obtain a stable aqueous acrylamide solution can be provided.Type: GrantFiled: May 21, 2012Date of Patent: May 12, 2015Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Makoto Kanou, Norifumi Hagiya
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Publication number: 20150057455Abstract: Methods and systems for producing high purity 3-hydroxypropionic acid (3-HP) from an aqueous medium, such as a fermentation broth, are described. Aqueous 3-HP solution can be purified by flash evaporation wherein the 3-HP is vaporized at an elevated temperature without conversion to acrylic acid. This process can be integrated with downstream processes for producing other chemical and consumer products.Type: ApplicationFiled: March 14, 2014Publication date: February 26, 2015Inventors: Cindy HOPPE, Sarah M. HOYT, Robert TENGLER, David DeCOSTER, Bradley HARKRADER, Patrick H. AU-YEUNG, Sanjib BISWAS, Pedro R. VARGAS, II, Raymond P. ROACH, Timothy Charles FRANK
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Publication number: 20140235519Abstract: It is intended to provide a compound and a fragrance composition containing the compound, wherein the compound is useful as a fragrance, has floral and green odors in addition to a strong muguet odor, is stable in an aqueous vehicle, and can be blended with another fragrance to have enhanced freshness and diffusibility. It also is intended to provide 4,8-dimethyl-4,9-decadienenitrile and a fragrance composition containing 4,8-dimethyl-4,9-decadienenitrile.Type: ApplicationFiled: February 19, 2014Publication date: August 21, 2014Applicant: KAO CORPORATIONInventors: Takashi AOKI, Takahiro HIROSE, Shoichi TAHARA
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Publication number: 20140148607Abstract: The subject matter of the invention is a process for synthesizing ?-functionalized acids of formula R—(CH2)n—COOH in which R is COOH or NH2CH2, from a feedstock of natural origin containing hydroxylated fatty acids.Type: ApplicationFiled: July 10, 2012Publication date: May 29, 2014Applicant: ARKEMA FRANCEInventor: Jean-Luc Dubois
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Patent number: 8686105Abstract: This invention relates to adhesive systems using imines and salts thereof, precursors to electron deficient olefins and coreactants therefor.Type: GrantFiled: October 24, 2007Date of Patent: April 1, 2014Assignee: Henkel IP & Holding GmbHInventors: Ciaran B. McArdle, Ligang Zhao
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Publication number: 20130316940Abstract: Deodorant composition for the treatment of female malodour comprising a perfume containing violet nitrile and optionally pharaone and/or zinarine.Type: ApplicationFiled: July 31, 2013Publication date: November 28, 2013Inventors: Keith Douglas Perring, John Martin Behan, Alan Forbes Provan
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Patent number: 8530690Abstract: A process for isomerizing cis-2-pentenenitrile to 3-pentenenitriles, by isomerizing cis-2-pentenenitrile with amidines, tertiary amines or mixtures thereof as a catalyst at temperatures of 80 to 200° C. and a pressure of 0.01 to 50 bar.Type: GrantFiled: April 7, 2011Date of Patent: September 10, 2013Assignee: BASF SEInventors: Hermann Luyken, Peter Pfab, Robert Baumann, Andreas Leitner, Tobias Aechtner
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Publication number: 20130058881Abstract: Deodorant composition for the treatment of female malodour comprising a perfume containing violet nitrile and optionally pharaone and/or zinarine.Type: ApplicationFiled: April 12, 2011Publication date: March 7, 2013Applicant: Givaudan SAInventors: Keith Douglas Perring, John Martin Behan, Alan Forbes Provan
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Publication number: 20130006009Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide which comprises the element Mo, the elements Bi and/or V and one or more of the elements Co, Ni, Fe, Cu and alkali metals, in which sources of the different elements are used to obtain a finely divided mixture which is coarsened to a powder by press agglomeration, the coarsened powder is used to form, by press agglomeration, shaped bodies V which are separated into undamaged shaped bodies V+ and into damaged shaped bodies V?, the undamaged shaped bodies V+ are converted by thermal treatment to the shaped catalyst bodies K, and the damaged shaped bodies V? are comminuted and recycled into the obtaining of the finely divided mixture.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: BASF SEInventors: Andreas RAICHLE, Holger Borchert, Klaus Joachim Müller-Engel, Catharina Horstmann, Josef Macht
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Publication number: 20120329696Abstract: The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities' options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.Type: ApplicationFiled: May 24, 2012Publication date: December 27, 2012Inventors: Hugo Robert Germain Denutte, Johan Smets, An Pintens, Jeanne Alfons Van Aken, Freek Annie Camiel Vrielynck
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Publication number: 20120029211Abstract: A catalytic Wittig method utilizing a phosphine including the steps of providing a phosphine oxide precatalyst and reducing the phosphine oxide precatalyst to produce the phosphine; forming a phosphonium ylide precursor from the phosphine and a reactant; generating a phosphonium ylide from the phosphonium ylide precursor; reacting the phosphonium ylide precursor with the aldehyde, ketone, or ester to form the olefin and the phosphine oxide which then reenters the cycle. The invention is also directed to a Mitsunobu reaction catalytic in phosphine.Type: ApplicationFiled: April 6, 2010Publication date: February 2, 2012Inventor: Christopher J. O'Brien
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Publication number: 20120003170Abstract: The present invention discloses certain nitrile compounds that are chemically stable and are useful as a lemon odorant or to impart a lemon odor to various consumer articles. The invention also relates to the compositions and articles that contain such compounds as well to the use of the compounds in a method of imparting a lemon odor to the compositions and articles.Type: ApplicationFiled: October 9, 2009Publication date: January 5, 2012Applicant: FIRMENICH SAInventor: Peter Fankhauser
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Patent number: 8067629Abstract: A styrene sulfonate polymer which is highly effective at preventing fouling of equipment used in the manufacturing process of acrylonitrile. The styrene sulfonate polymer is particularly effective when introduced into the quench column, the recovery stage and the wastewater processing section of the acrylonitrile manufacturing process.Type: GrantFiled: November 19, 2008Date of Patent: November 29, 2011Assignee: Nalco CompanyInventor: David Youdong Tong
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Publication number: 20110207835Abstract: The use of short chain ?,?-unsaturated nitriles as flavour and fragrance ingredient and flavour and fragrance applications comprising them.Type: ApplicationFiled: September 26, 2007Publication date: August 25, 2011Applicant: Givaudan SAInventors: Thierry Granier, Antoine Gaillard
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Patent number: 7985403Abstract: The present invention relates to the field of perfumery. More particularly, it concerns specific oxime or nitrite derivatives of 4-dodecene, which are useful perfuming ingredients in particular to impart natural mandarin odor notes.Type: GrantFiled: March 25, 2008Date of Patent: July 26, 2011Assignee: Firmenich SAInventors: Jean-Marc Gaudin, Wessel-Jan Kos
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Patent number: 7902112Abstract: A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula: MoaBibFecWdNieMgfAgBhCiDjEkFlGmOn(SiO2)p In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO2 represents silica, when a=10, b=0.1 to 1.5, c=0.5 to 3, d=0.1 to 1.5, e=0.1 to 8, f=0.1 to 5, g=0.1 to 1.5, h=0 to 8, i=0 to 3, j=0 to 3, k=0 to 3, l=0 to 3, m=0.01 to 2, p=10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (a×2+d×2)/(b×3+c×3+e×2+f×2+g×3+h×2+i×3+m×1)=0.90 to 1.00).Type: GrantFiled: October 23, 2007Date of Patent: March 8, 2011Assignee: Dia-Nitrix Co., Ltd.Inventors: Motoo Yanagita, Kenichi Miyaki, Hirokazu Watanabe
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Publication number: 20100279917Abstract: Compounds of general formula (I) below: in which R is a hydrogen atom, a methyl group, a CH2OH group, an ester group, preferably COOEt, or a methylene group, and in which not more than one of the four dashed lines represents a carbon-carbon double bond, and also their enantiomers and their diastereoisomers, a process for preparing them, and their use as an odorant agent in perfuming compositions.Type: ApplicationFiled: October 28, 2008Publication date: November 4, 2010Inventors: Jean Mane, Jean-Claude Clinet
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Publication number: 20100234550Abstract: In this disclosure, a system is described, comprising a shear device with at least one inlet and at least one outlet and a mixing vessel with at least one inlet and at least one outlet, wherein an inlet of the shear device is in fluid communication with an outlet of the mixing vessel. In certain embodiments, the shear device and the mixing vessel form a loop for fluid communication. Also disclosed herein is a method of high shear oxidation, comprising mixing an oxidant with a substrate to form a substrate-oxidant mixture and applying shear to the substrate-oxidant mixture to form a product. The product includes ethylene oxide, propylene oxide, terephthalic acid, phenol, acrylonitrile, maleic anhydride, phthalic anhydride, nitric acid, caprolactam, oxidized polyethylene, oxidized polypropylene, oxidized polyethylene copolymers, and oxidized polypropylene copolymers. Suitable oxidant includes air, oxygen, ozone, peroxide, organic peroxide, halogen, oxygen-containing gas, and halogen-containing gas.Type: ApplicationFiled: December 14, 2009Publication date: September 16, 2010Applicant: H R D CORPORATIONInventors: Abbas Hassan, Harshad M. Bhatt, Aziz Hassan, Gregory G. Borsinger
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Publication number: 20100152475Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide which comprises the element Mo, the elements Bi and/or V and one or more of the elements Co, Ni, Fe, Cu and alkali metals, in which sources of the different elements are used to obtain a finely divided mixture which is coarsened to a powder by press agglomeration, the coarsened powder is used to form, by press agglomeration, shaped bodies V which are separated into undamaged shaped bodies V+ and into damaged shaped bodies V?, the undamaged shaped bodies V+ are converted by thermal treatment to the shaped catalyst bodies K, and the damaged shaped bodies V? are comminuted and recycled into the obtaining of the finely divided mixture.Type: ApplicationFiled: December 9, 2009Publication date: June 17, 2010Applicant: BASF SEInventors: Andreas Raichle, Holger Borchert, Klaus Joachim Müller-Engel, Catharina Horstmann, Josef Macht
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Publication number: 20100137178Abstract: The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.Type: ApplicationFiled: December 1, 2009Publication date: June 3, 2010Inventors: Johan Smets, Hugo Robert Germain Denutte, An Pintens, David Thomas Stanton, Koen Van Aken, Inge Helena Hubert Laureyn, Bram Denolf, Freek Annie Camiel Vrielynck
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Publication number: 20100125147Abstract: A styrene sulfonate polymer which is highly effective at preventing fouling of equipment used in the manufacturing process of acrylonitrile. The styrene sulfonate polymer is particularly effective when introduced into the quench column, the recovery stage and the wastewater processing section of the acrylonitrile manufacturing process.Type: ApplicationFiled: November 19, 2008Publication date: May 20, 2010Inventor: David Youdong Tong
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Publication number: 20100069660Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [BiaZ1bOx]p[BicMo12FedZ2eZ3fZ4gZ5hZ6iOy]1, in which a finely divided oxide BiaZ1bOx and, formed from element sources, a finely divided mixture of stoichiometry BicMo12FedZ2eZ3fZ4gZ5hZ6i are mixed in a ratio of p:1, this mixture is used to form shaped bodies and these are treated thermally, where 0<c?0.8.Type: ApplicationFiled: September 10, 2009Publication date: March 18, 2010Applicant: BASF SEInventors: Andreas Raichle, Catharina Horstmann, Frank Rosowski, Klaus Joachim Müller-Engel, Jochen Petzoldt, Ulrich Cremer
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Publication number: 20100015076Abstract: Novel (co)polymeric structures having functional groups making possible, under conditions that are safe for human use, the formation of chemical bonds with human keratin, and in particular with the keratin present in hair, eyelashes and eyebrows, skin, nails, lips, the oral mucosa and tissues of the external genital organs are disclosed; the invention also relates to the synthesis of such (co)polymeric structures and the use thereof in the fields of cosmetics and medicine.Type: ApplicationFiled: December 23, 2005Publication date: January 21, 2010Applicant: EUDERMIC S.R.L.Inventors: Matteo Zanotti Russo, Nicola Barbini
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Publication number: 20100008881Abstract: The present invention relates to the field of perfumery. More particularly, it concerns specific oxime or nitrite derivatives of 4-dodecene, which are useful perfuming ingredients in particular to impart natural mandarin odor notes.Type: ApplicationFiled: March 25, 2008Publication date: January 14, 2010Inventors: Jean-Marc Gaudin, Wessel-Jan Kos
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Publication number: 20090270648Abstract: A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula: MoaBibFecWdNieMgfAgBhCiDjEkFlGmOn(SiO2)p In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO2 represents silica, when a=10, b=0.1 to 1.5, c=0.5 to 3, d=0.1 to 1.5, e=0.1 to 8, f=0.1 to 5, g=0.1 to 1.5, h=0 to 8, i=0 to 3, j=0 to 3, k=0 to 3, l=0 to 3, m=0.01 to 2, p=10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (a×2+d×2)/(b×3+c×3+e×2+f×2+g×3+h×2+i×3+m×1)=0.90 to 1.00).Type: ApplicationFiled: October 23, 2007Publication date: October 29, 2009Applicant: DIA-NITRIX CO., LTD.Inventors: Motoo Yanagita, Kenichi Miyaki, Hirokazu Watanabe
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Patent number: 7569719Abstract: This invention relates to processes for producing electron deficient olefins, such as 2-cyanoacrylates, using an iminium salt, and if desired contacting the reaction byproduct with alkali to generate an amine and separating that amine therefrom.Type: GrantFiled: October 24, 2007Date of Patent: August 4, 2009Assignee: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Ligang Zhao
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Patent number: 7541486Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) reacting 1,3-butadiene with hydrogen cyanide over at least one catalyst to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst and 1,3-butadiene, (b) distilling stream 1 in a column to obtain a high-1,3-butadiene stream 2 as the top product and a low-1,3-butadiene stream 3 as the bottom product which comprises 3-pentenenitrile, the at least one catalyst and 2-methyl-3-butenenitrile, (c) distilling stream 3 in a column to obtain a stream 4 as the top product which comprises 1,3-butadiene, a stream 5 which comprises 3-pentenenitrile and 2-methyl-3-butenenitrile at a side draw of the column, and a stream 6 as the bottom product which comprises the at least one catalyst, (d) distilling stream 5 to obtain a stream 7 as the top product which comprises 2-methyl-3-butenenitrile, and a stream 8 as the bottom product which comprises 3-pentenenitrile.Type: GrantFiled: January 27, 2005Date of Patent: June 2, 2009Assignee: BASF AktiengesellschaftInventors: Jens Scheidel, Tim Jungkamp, Michael Bartsch, Gerd Haderlein, Robert Baumann, Hermann Luyken
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Publication number: 20090074709Abstract: A method of applying a biocidal polymer to a surface including applying a solution of the biocidal polymer to the surface, wherein the biocidal polymer includes biocidal groups and the biocidal polymer is insoluble in water. The biocidal groups can be selected from the group consisting of quaternary salt groups or haloamino groups.Type: ApplicationFiled: September 12, 2008Publication date: March 19, 2009Inventors: RICHARD R. KOEPSEL, ALAN J. RUSSELL, THANGAPPAN RAVIKUMAR
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Patent number: 7361778Abstract: A process for isomerizing cis-2-pentenenitrile to trans-3-pentenenitrile in the presence of aluminum oxide as a catalyst, wherein the aluminum oxide has a BET surface area of at least 50 m2/g.Type: GrantFiled: April 16, 2004Date of Patent: April 22, 2008Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Gerd Haderlein, Miquel Angel Flores, Tim Jungkamp, Hermann Luyken, Jens Scheidel, Wolfgang Siegel, Dagmar Pascale Kunsmann-Keitel
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Patent number: 6939982Abstract: The present invention relates to chiral metal catalysts for stereoselective olefin metathesis reactions, which are recyclable and reusable in such metathesis reactions. The chiral metal-based metathesis catalysts of the invention comprise multidentate optically active or racemic chiral ligands that enable their use in asymmetric synthetic processes, such as for example, in ring-opening and ring-closing metathesis reactions (ROM and RCM, respectively) of alkenes. The catalysts of the invention are organometallic complexes of multivalent metals comprising one or more chiral bidentate ligands that exhibit superior reactivity and stereoselectivity properties. The present invention also provides methods of making such catalysts and methods for utilizing them in catalyzing stereoselective olefin metathesis reactions to provide asymmetric products in relatively high enantiomeric or stereoisomeric excess.Type: GrantFiled: May 12, 2003Date of Patent: September 6, 2005Assignee: The Trustees of Boston CollegeInventors: Amir H. Hoveyda, Joshua Van Veldhuizen, Steven B. Garber, Jason S. Kingsbury
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Publication number: 20040126700Abstract: The invention provides an ethylenic compound and a high density blue ray storage media using thereof. The ethylenic compound comprises an ethylenic derivative having a chemical structures (1) as shown below.Type: ApplicationFiled: April 1, 2003Publication date: July 1, 2004Inventors: Ming-Chia Lee, Wen-Yih Liao, Chien-Liang Huang, Chuen-Fuw Yan, Tzuan-Ren Jeng, Andrew Teh Hu, Chien-Wen Chen, Lung-Chang Liu
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Publication number: 20030109711Abstract: 4-Haloalkylnicotinonitriles having the formula (I) 1Type: ApplicationFiled: December 30, 2002Publication date: June 12, 2003Inventors: Sergiy Pazenok, Henricus Maria Martinus Bastiaans
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Patent number: 6380420Abstract: A process for preparing fatty amines by the cross-metathesis of normal alpha olefins and acrylonitrile to form an intermediate fatty acid nitrile which is hydrogenated to the corresponding fatty amine.Type: GrantFiled: September 8, 2000Date of Patent: April 30, 2002Assignee: Chevron U.S.A. Inc.Inventors: William L. Schinski, Michael S. Driver
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Patent number: 6096848Abstract: Biscyanoacrylates in solution are prepared by reacting 2-cyanoacrylic acids or their alkyl esters with diols in the presence of sulfonic acids as catalysts. The reaction mixture is processed by substituting an aliphatic solvent for the aromatic solvent and is then subjected twice to fractional crystallization. The thus obtained biscyanoacrylates are very pure. They are therefore useful for producing storage stable cyanoacrylate adhesives. Their admixture increases the thermal resistance of the adhesives, which is particularly important in the case of electric and electronic components.Type: GrantFiled: March 5, 1997Date of Patent: August 1, 2000Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Yuri Gololobov, Werner Gruber, Christian Nicolaisen
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Patent number: 6025515Abstract: The present invention provides substituted phenols which are effective to inhibit polymer formation during the manufacture of acrylonitrile. Preferred substituted phenols are (a) hindered phenols, nonhindered phenols, and partially hindered phenols, or (b) combinations of hindered phenols with nonhindered or partially hindered phenols. A most preferred substituted phenol is p-nitrosophenol. In a preferred embodiment, the substituted phenols (with the exception of p-nitrosophenol) are combined with hydrogen transfer agents.Type: GrantFiled: September 23, 1996Date of Patent: February 15, 2000Assignee: Baker Hughes IncorporatedInventor: Muslim D. Shahid
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Patent number: 6002040Abstract: A process for manufacturing acrylonitrile comprising reacting propylene, ammonia and oxygen in a reactor zone in the presence of a catalyst to produce a reactor effluent containing crude acrylonitrile, transferring the reactor effluent containing crude acrylonitrile to a quench column wherein the reactor effluent containing crude acrylonitrile is contacted with an aqueous stream to cool the reactor effluent, transferring the cooled reactor effluent containing the crude acrylonitrile to an absorption column wherein the reactor effluent containing crude acrylonitrile is contacted with a second aqueous stream to separate and remove the crude acrylonitrile as a bottom stream from the absorption column, transferring the bottom stream containing the crude acrylonitrile to a recovery and purification section where the acrylonitrile is recovered and purified, wherein the improvement comprises supplying the second aqueous stream to the absorption column by means of liquid spray nozzles.Type: GrantFiled: May 14, 1998Date of Patent: December 14, 1999Assignee: The Standard Oil CompanyInventors: Jeffrey Earle Rinker, Paul Trigg Wachtendorf, Vincent Astor Little, III, Sanjay Purushottam Godbole
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Patent number: 5969175Abstract: A method for purifying a nitrile which comprises contacting a nitrile containing an aldehyde with a cation exchange resin carrying a polyamine to remove the aldehyde from the nitrile. The ion exchange resin can be regenerated and reused repeatedly.Type: GrantFiled: June 13, 1997Date of Patent: October 19, 1999Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kouzo Murao, Katsuo Ishii, Tetsuro Horinouchi
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Patent number: 5859280Abstract: An alpha-tocopherol is disclosed as a polymerization inhibitor effective against vinyl monomer polymerization. Alpha-tocopherol was found to inhibit polymerization of acrylonitrile and diolefines such as isoprene and butadiene. Alpha-tocopherol was found to interact synergistically with hydroquinone in inhibiting polymerization of acrylonitrile.Type: GrantFiled: July 1, 1997Date of Patent: January 12, 1999Assignee: BetzDearborn Inc.Inventor: Graciela B. Arhancet
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Patent number: 5830966Abstract: Compounds of general formula (I) ##STR1## characterised in that R.sup.1 and R.sup.2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR.sup.4, C(O)NR.sup.5 R.sup.6 ;X and Y are independently selected from the group consisting of H, COOH, COOR, CN, R.sup.3 CO--, C(O)NHR.sup.4, C(O)NR.sup.5 R.sup.6, P(O)(OR.sup.7).sub.2 and SO.sub.2 R.sup.8 ; with the proviso that X and Y are not both H; or X and Y together with the carbon atom to which they are attached form a carbocyclic or heterocyclic ring system which can contain oxygen, sulfur or nitrogen atoms; and R, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are various groups;and polymers and copolymers derived from such compounds.Type: GrantFiled: January 26, 1996Date of Patent: November 3, 1998Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific & Industrial Research OrganisationInventors: San Hoa Thang, Ezio Rizzardo, Graeme Moad
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Patent number: 5772898Abstract: This invention relates to hydrocarbon conversion processes using a novel crystalline metallo manganese oxides that have the hollandite structure. The composition is represented by the formulaA.sub.y Mn.sub.8-x M.sub.x O.sub.16where A is a templating agent such as potassium, ammonium, and y varies from about 0.5 to about 2.0, M is a metal such as chromium, vanadium, gallium, antimony and x varies from about 0.01 to about 4.0. These oxides have a three-dimensional structure with manganese and the M metals forming the framework. Examples of the processes in which these compositions can be used are oxydehydrogenation and ammoxidation. These compositions are also effective for oxidizing cyanide in aqueous streams.Type: GrantFiled: May 2, 1997Date of Patent: June 30, 1998Assignee: UOP LLCInventor: Gregory J. Lewis
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Patent number: 5746924Abstract: The invention comprises a method of inhibiting the formation of foulants and residues, gums and precipitates, polymeric tars and other highly oxidized carbonaceous tars which can be formed in the process of manufacture and recovery of acrylonitrile. The method comprises adding to the liquid or gaseous phases passing through, or stored in acrylonitrile process equipment, an effective antifouling amount of a dispersant which is stable in the environment within an acrylonitrile process and is neutral to the equipment used for the manufacture of acrylonitrile.Type: GrantFiled: April 15, 1997Date of Patent: May 5, 1998Assignee: Nalco/Exxon Energy Chemicals, L.P.Inventors: Fredrick L. Cooper, Piotr A. Kibala, Michael C. Weismiller
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Patent number: 5597941Abstract: The process for producing 5-amino-3-methylpyrazole includes the steps of reacting 2,3-dichloropropene with a cyanogenating agent in the presence of a cuprous salt and water at a pH of 3-8 to obtain at least one intermediate selected from the group consisting of 3-chloro-3-butenonitrile and 2,3-butadienenitrile; reacting the at least one intermediate with a base in the presence of water at a pH of 12.5 or above to obtain 2-butynenitrile; and reacting the 2-butynenitrile with hydrazine. This process is advantageous in that it enables the production of 5-amino-3-methylpyrazole in high yield without using any reagent which may produce fire. 5-Amino-3-methylpyrazole is a useful intermediate for medicines, agricultural chemicals, photographic chemicals, etc.Type: GrantFiled: December 29, 1994Date of Patent: January 28, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Kazuya Minamisaka, Masahito Sekiguchi, Kenji Saito
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Patent number: 5442095Abstract: Catalysts based on rhodium and water-soluble phosphine obtained by using rhodium perchlorate as the precursor rhodim salt. Also, processes for the preparation of these catalysts and to their use are provided.Type: GrantFiled: April 14, 1993Date of Patent: August 15, 1995Assignee: Rhone-Poulenc Nutrition AnimaleInventor: Patrick Auvray
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Patent number: 5354895Abstract: Oxadimethacrylics useful for preparing pollers have the general formula ICH.sub.2 .dbd.C(A)CH.sub.2 --O--CH.sub.2 C(B).dbd.CH.sub.2 Iwhere A and B are selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN with the proviso that A.noteq.B, and R.sup.1, R.sup.2 and R.sup.3 are each defined as follows:R.sup.1 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.8 -cycloalkyl-C.sub.1 -C.sub.5 -alkyl, wherein the cycloalkyl rings may be C.sub.1 -C.sub.4 -alkyl- or C.sub.1 -C.sub.4 -alkoxy-monosubstituted, -disubstituted or -trisubstituted, hydroxy-C.sub.1 -C.sub.5 -alkyl, amino-C.sub.1 -C.sub.5 -alkyl, N-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.5 -alkyl, N,N-di-(C.sub.1 -C.sub.4 -alkyl)amino-C.sub.1 -C.sub.5 -alkyl, C.sub.6 -C.sub.18 -aryl, C.sub.6 -C.sub.18 -aryl-C.sub.1 -C.sub.4 -alkyl, wherein the aryl groups may carry up to three of the following groups: halogen, C.sub.1 -C.sub.22 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.Type: GrantFiled: December 23, 1992Date of Patent: October 11, 1994Assignee: BASF AktiengesellschaftInventors: Siegmund Besecke, Andreas Deckers, Harald Lauke
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Patent number: 5166373Abstract: The present invention provides novel acyclic terpenes of the formula: ##STR1## which are useful as intermediates for the industrially advantageous production of sarcophytol A.Type: GrantFiled: December 30, 1991Date of Patent: November 24, 1992Assignee: Mitsubishi Kasei CorporationInventors: Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka
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Patent number: 5138087Abstract: 1,1,1-trifluoro-2-propene compounds which are useful in preparation of insecticidal, acaricidal and nematicidal arylpyrrole compounds are described. A method for the preparation of 1,1,1-trifluoro-2-propene compounds is presented.Type: GrantFiled: July 26, 1991Date of Patent: August 11, 1992Assignee: American Cyanamid CompanyInventors: David G. Kuhn, Kenneth A. Martin
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Patent number: 5105005Abstract: The invention relates to new alkadienenitriles of the formula ##STR1## in which n is an integer from 5 to 9, a process for their preparation and their outstanding suitability as odororiferous substances.Type: GrantFiled: September 12, 1990Date of Patent: April 14, 1992Assignee: Haarmann & Reimer GmbHInventors: Rudolf Hopp, Thomas Thielmann, Wilhelm Gottsch
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Patent number: 5075489Abstract: Unsaturated nitriles of the general formula I ##STR1## where R is a branched or straight-chain alkyl radical of 4 to 10 carbon atoms or a phenyl ring which is substituted by alkyl of 1 to 4 carbon atoms, one or more alkoxy groups of 1 to 3 carbon atoms, preferably 1 or 2 methoxy groups, or alkylenedioxy, preferably methylenedioxy, and their preparation and their use as scents.Type: GrantFiled: April 25, 1990Date of Patent: December 24, 1991Assignee: BASF AktiengesellschaftInventors: Gerald Lauterbach, Rainer Becker, Klaas Jansen