Alicyclic Polycarboxylic Acid Moiety Patents (Class 560/127)
-
Patent number: 7750044Abstract: The present invention relates to a novel class of polymeric compounds having specific quaternized amine based upon a dimer acid reacted with an alkanolamine to make an ester quaternary compound. Dimer acid is a C-36 diacid having a cyclic structure and two amine groups that allow for the synthesis of a high molecular weight cationic compound which is extremely substantitive to human skin and are well tolerated by human tissue making them suitable for use preparation of barrier products for personal care applications. These materials are dimethylaminopropyl amine free, which is highly desirable in personal care applications.Type: GrantFiled: April 1, 2008Date of Patent: July 6, 2010Assignee: SurfaTech CorporationInventors: Kevin A. O'Lenick, Anthony J. O'Lenick, Jr.
-
Publication number: 20100152436Abstract: The invention relates to a shell catalyst containing ruthenium as an active metal, alone or together with at least one other metal of the auxiliary group IB, VIIB or VIII of the periodical system of the elements (CAS version), and applied to a carrier containing silicon dioxide as a carrier material. The invention also relates to a method for producing said shell catalyst, and to a method for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols, using the inventive shell catalyst. The invention further relates to the use of the inventive shell catalyst for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols.Type: ApplicationFiled: June 20, 2006Publication date: June 17, 2010Applicant: BASF AKTIENGESELLSCHAFTInventors: Frederik Van Laar, Michael Becker, Ekkehard Schwab, Jochem Henkelmann, Peter Polanek
-
Publication number: 20100145002Abstract: The present invention provides a useful and novel alicyclic polyesterimide. An alicyclic polyesterimide produced by imidation of an alicyclic polyesterimide precursor is found to be a useful material in industrial fields, the alicyclic polyesterimide precursor being obtained by reacting an alicyclic tetracarboxylic anhydride having an ester group or a class of tetracarboxylic acid thereof as a starting material with an amine.Type: ApplicationFiled: June 1, 2006Publication date: June 10, 2010Applicant: Mitsubishi Chemical CorporationInventors: Masatoshi Hasegawa, Haruhiko Kusaka, Jun Enda
-
Publication number: 20100137630Abstract: Acetals are formed from an aldehyde hydrogenation product mixture comprising alcohols and at most 2% of alde-hydes and the product is distilled to yield purified alcohols and a second stream containing acetals and/or unsaturated ethers.Type: ApplicationFiled: February 27, 2008Publication date: June 3, 2010Inventors: Ronald Dean Garton, Corey W. Reed, Rao Krishna Kulai, Bruce D. Lilly, Ramzi Yanni Saleh, Raphael Frans Caers
-
Publication number: 20100130767Abstract: A process for producing esters comprises esterifying an acid or anhydride with an excess of an alcohol to produce a crude ester, recovering excess alcohol from the crude ester and recycling recovered excess alcohol to the esterification reaction together with fresh alcohol. The process is improved by controlling the ratio of the amount of recycled alcohol and the amount of fresh alcohol in dependence on the level of impurities in the recycle alcohol. Further improvements come from feed forwarding fresh alcohol analysis results and from preheating the alcohol before loading into the reactor. Preferably, ester product quality is improved by stripping the alcohol for oxygen removal prior to esterification.Type: ApplicationFiled: March 7, 2008Publication date: May 27, 2010Inventors: Nicolaas Anthony De Munck, Brady Compton, John Lyford, IV, Aad Gerrit Oskam
-
Publication number: 20100113585Abstract: Compounds of formulas I-IV: (I), (II), (III) (IV), wherein: R1 and R4-R23 are independently selected from H and 1-3 carbon lower alkyl; and R2 and R3 are independently selected from H, 1-3 carbon lower O II alkyl, and —C—Ra, wherein Ra is 1-3 carbon lower alkyl. Pharmaceutical compositions, which include any of Compounds I-IV and a pharmaceutically acceptable carrier, methods of inducing tumor cell apoptosis by administering to a patient in need thereof an effective amount of any of Compounds I-IV, and methods for obtaining any of Compounds I-IV by extracting the compound from coral are also provided.Type: ApplicationFiled: March 5, 2008Publication date: May 6, 2010Applicant: Rutgers, the State UniversityInventor: Paul Falkowski
-
Publication number: 20100105944Abstract: Oxidative recovery methods that use oxygen or air for recovery of homogeneous metal catalysts, such as cobalt catalysts, used in for example hydroformylation processes, can be hazardous. Explosive or flammable gas mixtures may be generated inside the process equipment, which can deflagrate upon any ignition source such as a static electricity discharge. The use of a flammable diluent has been found to be a very effective way of optimizing the recovery method, by bringing the resulting gas mixtures above their upper flammability limit. The offgas produced is then also easier to dispose of as a fuel, as compared to when a non-flammable diluent is used.Type: ApplicationFiled: March 31, 2008Publication date: April 29, 2010Inventors: Kenneth J. Buturla, James T. Ritchie, Ronald D. Garton, Eddy T.A. Van Driessche
-
Patent number: 7700259Abstract: A polymer compound that, within a chemically amplified positive resist system, exhibits a significant change in alkali solubility from a state prior to exposure to that following exposure, as well as a photoresist composition that includes such a polymer compound and a method for forming a resist pattern, which are capable of forming fine patterns with a high level of resolution. The polymer compound includes, as an alkali-soluble group (i), a substituent group in which a group selected from amongst alcoholic hydroxyl groups, carboxyl groups, and phenolic hydroxyl groups is protected with an acid dissociable, dissolution inhibiting group (ii) represented by a general formula (1) shown below: (wherein, A represents an organic group of 1 to 20 carbon atoms with a valency of at least n+1, and n represents an integer from 1 to 4).Type: GrantFiled: April 5, 2005Date of Patent: April 20, 2010Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Toshiyuki Ogata, Syogo Matsumaru, Hideo Hada, Masaaki Yoshida
-
Patent number: 7683204Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.Type: GrantFiled: August 30, 2002Date of Patent: March 23, 2010Assignee: Oxeno Olefinchemie GmbHInventors: Wilfried Büschken, Michael Graβ, Alfred Kaizik, Dietrich Maschmeyer, Axel Tuchlenski, Franz Nierlich
-
Patent number: 7632961Abstract: The invention relates to a process for preparing full esters of alicyclic polycarboxylic acids from partial esters of aromatic polycarboxylic acids by hydrogenation of the partial ester followed by esterification of this compound.Type: GrantFiled: September 14, 2002Date of Patent: December 15, 2009Assignee: OXENO Olefinchemie GmbHInventors: Wilfried Bueschken, Michael Grass, Alfred Kaizik, Dietrich Maschmeyer, Franz Nierlich, Axel Tuchlenski
-
Patent number: 7632962Abstract: Disclosed is a process for the preparation of dimethyl cyclohexanedicarboxylates by the hydrogenation of the corresponding dimethyl benzenedicarboxylate ester in the presence of supported catalysts comprising (i) a Group VIII metal and (ii) a catalyst support material selected from graphite and silicon carbide.Type: GrantFiled: April 17, 2007Date of Patent: December 15, 2009Assignee: Eastman Chemical CompanyInventor: Zhufang Liu
-
Publication number: 20090281349Abstract: A hexahydrophthalate based compound is adapted to use as a plasticizer that contains no phthalic acid and benzoic acid, possess physical properties superior to DEHA and DINA in transparency and adhesion and is friendly to organisms and the environment; and a process for producing the hexahydrophthalate based compound includes esterifying hexahydrophthalic anhydride, a diol, and a catalyst for decarboxylation to get hexahydrophthalic alcohol, and adding a monoacid into the hexahydrophthalic alcohol for further esterification, thereby obtaining the hexahydrophthalate based compound.Type: ApplicationFiled: December 31, 2008Publication date: November 12, 2009Applicant: NAN YA PLASTICS CORPORATIONInventors: Sung-Yueh Shieh, Dein-Run Fung, Han-Ching Hsu, Yang-Tu Liu
-
Patent number: 7595420Abstract: A process for hydrogenating benzenepolycarboxylic acids or derivatives thereof, such as esters and/or anhydrides, by bringing one or more benzenepolycarboxylic acids or one or more derivatives thereof into contact with a hydrogen-containing gas in the presence of one or more catalytically active metal, such as platinum, palladium, ruthenium or mixtures thereof, deposited on a catalyst support comprising one or more ordered mesoporous materials.Type: GrantFiled: November 18, 2003Date of Patent: September 29, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard Henry Schlosberg, Jose Guadalupe Santiesteban, Stuart L. Soled, Andrzej Mariusz Malek, Joseph E. Baumgartner, Luo Shifang, Sabato Miseo, James Clarke Vartuli
-
Publication number: 20090234152Abstract: A process for hydrogenating benzenepolycarboxylic acids or derivatives thereof, such as esters and/or anhydrides, by bringing one or more benzenepolycarboxylic acids or one or more derivatives thereof into contact with a hydrogen-containing gas in the presence of one or more catalytically active metal, such as platinum, palladium ruthenium or mixtures thereof, deposited on a catalyst support comprising one or more ordered mesoporous materials.Type: ApplicationFiled: April 20, 2009Publication date: September 17, 2009Inventors: Richard Henry Schlosberg, Jose Guadalupe Santiesteban, Stuart L. Soled, Andrzej Mariusz Malek, Joseph E. Baumgartner, Luo Shifang, Sabato Miseo, James Clarke Vartuli
-
Publication number: 20090203860Abstract: One embodiment of the invention provides polyisobutylene (PIB) oligomers that are end-functionalized with ruthenium (Ru) catalysts. Such nonpolar catalysts can be dissolved in nonpolar solvents such as heptane, or any other nonpolar solvent that is otherwise not latently biphasic (i.e., if two or more solvent components are present, they remain miscible with each other throughout the entire reaction process, from the addition of substrate through to the removal of product). Substrate that is dissolved in the nonpolar solvent with the catalyst is converted into product. The lower solubility of the product in the nonpolar solvent renders it easily removable, either by extraction with a more polar solvent or by applying physical means in cases where the product precipitates from the nonpolar solvent. In this manner the catalysts are recycled; since the catalysts remain in the nonpolar solvent, a new reaction can be initiated simply by dissolving fresh substrate into the nonpolar solvent.Type: ApplicationFiled: October 1, 2008Publication date: August 13, 2009Inventors: David E. Bergbreiter, Hassan S. Bazzi, Chayanant Hongfa
-
Publication number: 20090194731Abstract: Oxidized and maleated derivative compositions, such as chemically modified oxidized and maleated tall oil fatty acid compositions, can be prepared and used in a variety of industrial applications, including as emulsifiers, corrosion inhibitors, concrete admixtures, and in reverse flotation mining applications.Type: ApplicationFiled: January 30, 2009Publication date: August 6, 2009Applicant: GEORGIA-PACIFIC CHEMICALS LLCInventors: Phillip W. Hurd, Roger Scott Johnson, John B. Hines, Brett A. Neumann
-
Publication number: 20090068585Abstract: In the formation of a fine pattern using a photolithography process, a dissolution promoter which can increase the difference of solubility between exposed region and unexposed region, and a photoresist composition including the same are disclosed. The dissolution promoter has the structure of the following formula (wherein, R is a hydrocarbon group of 1 to 40 carbon atoms, A is an alkyl group of 1 to 10 carbon atoms, p is 0 or 1, and q is an integer of 1 to 20). Moreover, the photoresist composition comprises 3 to 30 wt % (weight %) of the photosensitive compound; 1 to 30 weight parts of a dissolution promoter represented by the formula, with respect to 100 weight parts of the photosensitive compound; 0.05 to weight parts of a photo-acid generator with respect to 100 weight parts of the photosensitive compound; and a remaining organic solvent.Type: ApplicationFiled: September 11, 2008Publication date: March 12, 2009Inventors: Dong-Woo HAN, Jeong-Sik Kim, Min-Ja Yoo, Jae-Woo Lee, Jae-Hyun Kim
-
Publication number: 20090054520Abstract: The present invention relates to specific oxalic acid derivatives and to corresponding mixtures and to uses thereof as physiological cooling active ingredients.Type: ApplicationFiled: August 18, 2008Publication date: February 26, 2009Applicant: SYMRISE GmbH & Co. KGInventors: Horst Surburg, Jan Looft, Heiko Oertling, Tobias Vossing
-
Publication number: 20090012160Abstract: The present invention discloses novel dual prodrug compounds of formula (1), methods for their preparation and intermediates in their syntheses, formula (1): wherein A is a single bond, —O—, or —CH2—; m and n vary independently and are an integer from 1 to 15; p and q vary from 0 to an integer from 1 to 4; B is a single bond or —CR3R4; D is formula (2): or formula (3): and X is halogen; R1 to R4 are various substituents selected to optimize the physiochemical and biological properties such as, lipophilicity, bioavailability, and pharmacokinetics of compounds of Formula 1; and R1 and R2 or R3 and R4 may optionally be tethered together to form a 3- to 7-membered alicyclic ring. These compounds are useful for the treatment of various infections, metabolic, cardiovascular and neurological disorders.Type: ApplicationFiled: August 11, 2006Publication date: January 8, 2009Inventor: Om P Goel
-
Publication number: 20080312465Abstract: Dronabinol, the tetrahydrocannabinol compound which comprises the active constituent of marijuana and is pharmaceutically useful as an antiemetic, is prepared by a process involving reaction of cis-menth-1-ene-3,8-diol with olivetol to form 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxyprop-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene; and cyclizing the 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxypropr-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene so formed to obtain dronabinol. A novel synthesis of cis-menth-1-ene-3,8-diol is also provided.Type: ApplicationFiled: August 17, 2007Publication date: December 18, 2008Applicant: ALPHORA RESEARCH INC.Inventors: Fabio E.S. SOUZA, Jason E. FIELD, Ming PAN
-
Publication number: 20080242724Abstract: Ibopamine malcate salt (1:1), method for preparing it and pharmaceutical composition containing it.Type: ApplicationFiled: January 13, 2005Publication date: October 2, 2008Applicant: AZIENDE CHIM. RIUN. ANG. FRANC. A.C.R.A.F. S.P.A.Inventors: Mario Pinza, Caterina Maugeri, Nicola Cazzolla
-
Publication number: 20080183004Abstract: A method for preparing a kind of plasticizer containing cyclohexane poly carboxylic acid ester, particularly without phthalate, and with the advantage of effective shortening of reaction time, which method comprising having cyclohexane polycarboxylic acid or its derivatives, mono-alcohol and metal catalyst of tin and titanium or inorganic acid added together at the same time into a reactor to undergo a single stage of esterification at high temperature of 200˜250° C., and a reaction mixture of cyclohexane polycarboxylic acid ester was obtained by the process which is applicably used as a plasticizer without phthalate and no hazard to the living beings and environment.Type: ApplicationFiled: January 30, 2007Publication date: July 31, 2008Applicant: NAN YA PLASTICS CORPORATIONInventors: Sung-Yueh Shieh, Dein-Run Fung, Han-Ching Hsu, Yang-Tu Liu, Hsun-Min Lin
-
Publication number: 20080146832Abstract: The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or their esters by core hydrogenation of the corresponding aromatic polycarboxylic acids or their esters, and also to catalysts suitable therefore.Type: ApplicationFiled: February 4, 2008Publication date: June 19, 2008Applicant: OXENO OLEFINCHEMIE GMBHInventors: Michael Grass, Alfred Kaizik, Wilfried Buschken, Axel Tuchlenski, Dietrich Maschmeyer, Kurt-Alfred Gaudschun, Frank Brocksien
-
Patent number: 7371889Abstract: The invention relates to new chemical compounds that inhibit the various enzymes in the arachidonic acid pathway implicated in inflammatory disease conditions.Type: GrantFiled: March 11, 2007Date of Patent: May 13, 2008Assignee: Sami Labs LimitedInventors: Muhammed Majeed, Kalyanam Nagebhuananam, Rajendran Ramanujam, Subbalakshmi Prakash
-
Patent number: 7361714Abstract: The invention relates to the hydrogenation of aromatic compounds, in particular the preparation of alicyclic polycarboxylic acids or esters of these, via ring hydrogenation of the corresponding aromatic polycarboxylic acids or esters of these, and also to catalysts suitable for this purpose.Type: GrantFiled: April 26, 2003Date of Patent: April 22, 2008Assignee: OXENO Olefinchemie GmbHInventors: Michael Grass, Alfred Kaizik, Wilfried Bueschken, Axel Tuchlenski, Dietrich Maschmeyer, Kurt-Alfred Gaudschun, Frank Brocksien
-
Patent number: 7319161Abstract: The invention relates to a process for preparing cyclohexanedicarboxylic acids or derivatives thereof, such as esters and/or anhydrides, encompassing the reaction of diene/maleic acid anhydride mixtures, in particular of butadiene/maleic acid anhydride mixtures or of mixtures of maleic acid anhydrides and C5-dienes to give alkyl-substituted or unsubstituted cyclohexenedicarboxylic acid anhydrides in the condensed phase, ester formation, and then hydrogenation to give the corresponding cyclohexanedicarboxylic acid derivative, and also to the use of the cyclohexanedicarboxylic acids or derivatives thereof prepared according to the invention as plasticizers for plastics.Type: GrantFiled: February 15, 2002Date of Patent: January 15, 2008Assignee: BASF AktiengesellschaftInventors: Ralf Noe, Hartmut Hibst, Klaus Halbritter, Melanie Maas-Brunner, Boris Breitscheidel, Gerd Kaibel, Klemens Massonne, Axel Salden, Klaus Ebel, Eike Johannes Bergner, Frank Haese
-
Publication number: 20080008965Abstract: Novel ester compounds having formulae (1) to (4) wherein A1 is a polymerizable functional group having a carbon-carbon double bond, A2 is oxygen, methylene or ethylene, R1 is a monovalent hydrocarbon group, R2 is H or a monovalent hydrocarbon group, any pair of R1 and/or R2 may form an aliphatic hydrocarbon ring, R3 is a monovalent hydrocarbon group, and n is 0 to 6 are polymerizable into polymers. Resist compositions comprising the polymers as a base resin are thermally stable and sensitive to high-energy radiation, have excellent sensitivity and resolution, and lend themselves to micropatterning with electron beam or deep-UV.Type: ApplicationFiled: July 5, 2007Publication date: January 10, 2008Inventors: Masaki Ohashi, Takeshi Kinsho, Takeru Watanabe
-
Publication number: 20070255070Abstract: Disclosed is a process for the preparation of dimethyl cyclohexanedicarboxylates by the hydrogenation of the corresponding dimethyl benzenedicarboxylate ester in the presence of supported catalysts comprising (i) a Group VIII metal and (ii) a catalyst support material selected from graphite and silicon carbide.Type: ApplicationFiled: April 17, 2007Publication date: November 1, 2007Inventor: Zhufang Liu
-
Patent number: 7285613Abstract: The invention is based on the discovery that certain polyester compounds bearing free-radical curable moieties are useful as b-stageable adhesives for the microelectonic packaging industry.Type: GrantFiled: June 3, 2005Date of Patent: October 23, 2007Assignee: Designer Molecules, Inc.Inventors: Stephen M. Dershem, Farhad G. Mizori
-
Patent number: 7282601Abstract: A diester represented by the formula wherein A represents a cyclohexane ring, cyclohexene ring or benzene ring, X is H or methyl group, RX and RY are the same or different and each is C3-C18 branched-chain alkyl group, C1-C18 straight-chain alkyl group, C2-C18 straight-chain alkenyl or C3-C18 cycloalkyl, provided that when A is a benzene ring, RX and RY are different from each other and —COORX and —COORY are attached to two adjacent carbon atoms of the benzene ring, and having the following properties: 1) a total acid number of 0.05 mgKOH/g or less, 2) a sulfated ash content of 10 ppm or less, 3) a sulfur content of 20 ppm or less, 4) a phosphorus content of 20 ppm or less, 5) a peroxide value of 1.0 meq/kg or less, 6) a carbonyl value of 10 or less; 7) a volume resistivity of 1×1011 ?·cm or more, 8) a hydroxyl value of 3 mgKOH/g or less, and 9) a water content of 100 ppm or less, a process for preparing the same and a refrigerator lubricating oil comprising the diester.Type: GrantFiled: September 30, 2004Date of Patent: October 16, 2007Assignee: New Japan Chemical Co., Ltd.Inventors: Yasuyuki Kawahara, Kouji Takahashi, Makiko Takii
-
Patent number: 7271282Abstract: A diester represented by the formula wherein A represents a cyclohexane ring, cyclohexene ring or benzene ring, X is H or methyl group, RX and RY are the same or different and each is C3-C18 branched-chain alkyl group, C1-C18 straight-chain alkyl group, C2-C18 straight-chain alkenyl or C3-C10 cycloalkyl, provided that when A is a benzene ring, RX and RY are different from each other and —COORX and —COORY are attached to two adjacent carbon atoms of the benzene ring, and having the following properties: 1) a total acid number of 0.05 mgKOH/g or less, 2) a sulfated ash content of 10 ppm or less, 3) a sulfur content of 20 ppm or less, 4) a phosphorus content of 20 ppm or less, 5) a peroxide value of 1.0 meq/kg or less, 6) a carbonyl value of 10 or less; 7) a volume resistivity of 1×1011?·cm or more, 8) a hydroxyl value of 3 mgKOH/g or less, and 9) a water content of 100 ppm or less, a process for preparing the same and a refrigerator lubricating oil comprising the diester.Type: GrantFiled: July 19, 2000Date of Patent: September 18, 2007Assignee: New Japan Chemical Co., Ltd.Inventors: Yasuyuki Kawahara, Kouji Takahashi, Makiko Takii
-
Patent number: 7208545Abstract: Selected cyclohexane-1,3- and -1,4-dicarboxylic acid esters are described, as is their use as plasticizers in plastics and their preparation by hydrogenation of the corresponding isophthalic or terephthalic esters by bringing one or more of these isophthalic or terephthalic esters into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, at least one metal of the 8th transition group of the Periodic Table on its own or together with at least one metal of the 1st or 7th transition group of the Periodic Table, applied to a support, which comprises using a support having micropores.Type: GrantFiled: June 9, 2000Date of Patent: April 24, 2007Assignee: BASF AktiengesellschaftInventors: Melanie Brunner, Lucien Thil, Boris Breitscheidel
-
Patent number: 7148256Abstract: The present invention relates to a novel class of polymeric compounds having specific quaternized amine based upon a dimer acid reacted with an alkanolamine to make an ester quaternary compound. Dimer acid is a C-36 diacid having a cyclic structure and two amine groups that allow for the synthesis of a high molecular weight cationic compound which is extremely substantitive to human skin and are well tolerated by human tissue making them suitable for use preparation of barrier products for personal care applications. These materials are dimethylaminopropyl amine free, which is highly desirable in personal care applications.Type: GrantFiled: July 21, 2004Date of Patent: December 12, 2006Assignee: SurfaTech CorporationInventors: Thomas G. O'Lenick, Anthony J. O'Lenick, Jr.
-
Patent number: 7144939Abstract: The use of organic based nucleating agents to induce certain specific polymer orientations into the molded polypropylene articles such that the resultant part has improved stiffness-impact properties without sacrificing other attributes of the polypropylene is provided. Such results have been obtained through the utilization of low amount of organic nucleating compounds, including, without limitation, specific metal salts of hexahydrophthalic acid (hereinafter HHPA). Furthermore, such nucleating compounds have been found to impart, again in such low added amounts, heretofore unforeseen levels of b-axis crystalline orientation which translates into improved physical properties as well.Type: GrantFiled: July 29, 2003Date of Patent: December 5, 2006Assignee: Milliken & CompanyInventors: Darin L. Dotson, Brian M. Burkhart
-
Patent number: 7145032Abstract: Disclosed and claimed herein are e, e, e malonic acid/acetic acid tri-adducts of buckminsterfullerene of the general formula C60R3, wherein each R is independently selected from groups of the formula ?CR1R2 wherein each R1 and R2 is independently selected from the group consisting of —H and —COOH, provided, however, that at least one of the R1,s and R2,s is a hydrogen. Processes for preparing and uses of the same for treating neuronal injury and for life-extension are also disclosed and claimed herein.Type: GrantFiled: February 24, 2003Date of Patent: December 5, 2006Assignee: Washington UniversityInventors: Laura L. Dugan, Eva G. Lovett, Kevin L. Quick, Joshua I. Hardt
-
Patent number: 7108896Abstract: A method of increasing helical twisting power (HTP) in an optically active compound used in a liquid crystal material is provided. An optically active compound which exhibits a large HTP value is also provided. Furthermore, a liquid crystal composition which exhibits a high upper temperature limit of the liquid crystal after the addition of the optically active compound, and a liquid crystal display device using the same are provided. In a method, an HTP of a compound having a partial structure represented by formula (A), which has an asymmetric carbon atom, is increased by replacing the partial structure represented by formula (A) by a partial structure represented by formula (B) (wherein * represents the position of an asymmetric carbon atom, Y1 represents a substituent such as an alkyl group and a halogen).Type: GrantFiled: June 24, 2003Date of Patent: September 19, 2006Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hidetoshi Nakata, Makoto Sasaki, Kiyofumi Takeuchi, Haruyoshi Takatsu
-
Patent number: 7060840Abstract: The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral starting materials, e.g., meso anhydrides. The present invention also relates to catalysts for the aforementioned methods, and methods for synthesizing these catalysts.Type: GrantFiled: February 13, 2003Date of Patent: June 13, 2006Assignee: Brandeis UniversityInventors: Li Deng, Yonggang Chen, Shikai Tian
-
Patent number: 7053236Abstract: The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral and meso starting materials, e.g., prochiral and meso cyclic anhydrides. The present invention also relates to catalysts for the aforementioned methods, and methods for synthesizing these catalysts.Type: GrantFiled: June 12, 2003Date of Patent: May 30, 2006Assignee: Brandeis UniversityInventors: Li Deng, Yonggang Chen, Shikai Tian
-
Patent number: 7022259Abstract: A liquid crystal compound with high helical twisting power, a method for preparing the same, and a liquid crystal composition containing the same. The liquid crystal compounds include cyclic group chain structures similar to the liquid crystal to serve as the core structure, and multi-ring structures of natural alcohol with optical activity, such as alcoholates of terpenol, borneol, cinchonidine, quinine, or derivatives thereof. As a result, the liquid crystal composition containing the liquid crystal compounds can filter out light of specific wavelengths from incident light due to optical activity and high helical twisting power thereof.Type: GrantFiled: September 30, 2003Date of Patent: April 4, 2006Assignee: Industrial Technology Research InstituteInventors: Dao-Hung Lee, Ding-Jen Chen, Kung-Lung Cheng
-
Patent number: 7015170Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2?CHR in which R is hydrogen or a hydrocarbon radical with 1–12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from maleates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: GrantFiled: September 4, 2002Date of Patent: March 21, 2006Assignee: Basell Poliolefine Italia s.r.l.Inventors: Giampiero Morini, Giulio Balbontin, Yuri V. Gulevich, Gianni Vitale
-
Patent number: 6894172Abstract: Chiral chelating agents and chiral catalysts, which are formed from the chiral chelating agents and metal, are described. One chiral chelating agent has a general formula (1) as illustrated below: wherein R represents H, methyl, ethyl, a primary, secondary or tertiary straight, branched or cyclic alkyl group having 3-7 carbon atoms, a heterocyclic or aromatic group, an aromatic group substituted at the 2-, 3- or 4-position, an aromatic-like group, or a naphthyl or naphthyl-derived group, and n is an integer between 0 and 4.Type: GrantFiled: July 1, 2003Date of Patent: May 17, 2005Assignee: National Taiwan Normal UniversityInventors: Kwunmin Chen, Kung-Shou Yang, Wei-Der Lee, Jia-Fu Pan
-
Patent number: 6888021Abstract: A process for producing plasticizers in which a phthalic acid having the CAS Nos. 111381-89-6, 111381-90-9, 111381-91-0, 68515-44-6, 68515-45-7 and 3648-20-7, the formed plasticizers and a method of increasing the plasticity of a plastic product.Type: GrantFiled: June 13, 2001Date of Patent: May 3, 2005Assignee: BASF AktiengesellschaftInventors: Melanie Brunner, Arnd Böttcher, Boris Breitscheidel, Klaus Halbritter, Jochem Henkelmann, Lucien Thil, Rolf Pinkos
-
Polymeric pigment dispersant utilized as a grind resin for pigments and method of preparing the same
Patent number: 6849686Abstract: The present invention is directed to a polymeric pigment dispersant to be used as a grind resin to incorporate pigment into a pigment dispersion for a coating composition. The polymeric pigment dispersant is the reaction product of dipentaerylthritol, hexahydrophthalic anhydride, glycidylneodecanoate, dimethylethanolamine, and polyphosphoric acid. The present invention is also directed to a method of preparing the polymeric pigment dispersant. In this method, the dipentaerythritol and the hexahydrophthalic anhydride are polymerized to form an intermediate compound. Next, an epoxy group of the glycidylneodecanoate reacts with the intermediate compound, and then the dimethylethanolamine salts the intermediate compound. Finally, the polyphosphoric acid is added to form the completed polymeric pigment dispersant. The polymeric pigment dispersant has improved stability in the pigment dispersion and is utilized for efficient wetting and grinding of the pigment in the pigment dispersion.Type: GrantFiled: September 25, 2001Date of Patent: February 1, 2005Assignee: BASF CorporationInventors: Joseph F. Michalec, Swaminathan Ramesh, Paul J. Harris -
Publication number: 20040260113Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.Type: ApplicationFiled: August 11, 2004Publication date: December 23, 2004Inventors: Wilfried Bueschken, Michael Grass, Alfred Kaizik, Dietrich Maschmeyer, Axel Tuchlenski, Franz Nierlich
-
Patent number: 6809172Abstract: The polyester polyols according to the invention with an average equivalent weight in the range from 200 to 4,000, which were prepared by reacting &agr;,&ohgr;-dicarboxylic acids with butane 1,4-diol, hexane 1,6-diol, propane 1,3-diol or pentane 1,5-diol and with polyols having 3 to 6 hydroxyl groups, are used for the preparation of PUR pourable elastomers with improved resistance to hydrolysis.Type: GrantFiled: August 29, 2002Date of Patent: October 26, 2004Assignee: Bayer AktiengesellschaftInventors: James-Michael Barnes, Michael Schneider, Andreas Hoffmann
-
Patent number: 6750363Abstract: An efficient and selective process, capable of scale-up, to make itaconate derivatives of formula (IV), and/or succinate derivatives of formula (V) and/or (VI) by asymmetric hydrogenation of the itaconate derivatives. wherein R, R1 and R2 are as defined herein.Type: GrantFiled: July 18, 2002Date of Patent: June 15, 2004Assignee: Pfizer, Inc.Inventors: Andrew Michael Derrick, Nicholas Murray Thomson
-
Patent number: 6740773Abstract: The invention relates to a process for preparing cyclohexanedicarboxylic esters (hexahydrophthalic diesters) by esterifying the corresponding benzenedicarboxylic acids and immediately hydrogenating the esterification mixture in the presence of nickel catalysts.Type: GrantFiled: June 3, 2002Date of Patent: May 25, 2004Assignee: Celanese Chemicals Europe GmbHInventors: Hans Bohnen, Thomas Klein, Klaus Bergrath
-
Patent number: 6700012Abstract: This invention relates to compounds of the formula: wherein R1 is H or C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; R2 and R3 are each independently C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; or stereoisomers thereof.Type: GrantFiled: March 22, 2002Date of Patent: March 2, 2004Assignee: Aventis Pharmaceuticals Inc.Inventor: Timothy A. Ayers
-
Patent number: 6689898Abstract: This invention relates to novel compounds of the formula: wherein R1 is H or C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; R2 and R3 are each independently C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; X is Cl, Br or I; or stereoisomers thereof.Type: GrantFiled: March 22, 2002Date of Patent: February 10, 2004Assignee: Aventis Pharmaceuticals Inc.Inventor: Timothy A. Ayers
-
Patent number: 6670498Abstract: An ester compound of the following formula (1) is provided. R1 is H, methyl or CH2CO2R3, R2 is H, methyl or CO2R3, R3 is C1-C15 alkyl, R4 is branched or cyclic, tertiary C5-C20 alkyl group, Z is a divalent C1-C10 hydrocarbon group, and k is 0 or 1. A resist composition comprising as the base resin a polymer resulting from the ester compound is sensitive to high-energy radiation, has excellent sensitivity, resolution, and etching resistance, and is suited for micropatterning using electron beams or deep-UV.Type: GrantFiled: November 6, 2002Date of Patent: December 30, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsunehiro Nishi, Koji Hasegawa, Takeru Watanabe, Takeshi Kinsho, Mutsuo Nakashima, Seiichiro Tachibana, Jun Hatakeyama