Oxygen Containing Patents (Class 568/62)
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Patent number: 6894194Abstract: In a process to make dithiodiglycol by oxidation of ?-mercaptoethanol with sulfur, an improved product is recovered when a 1-10 mol % excess of ?-mercaptoethanol is used and hydrogen sulfide is removed by vacuum or nitrogen sparge. A typical product contains 88.1 mol % (92.0 wt %) dithiodiglycol, 2.3 mol % (2.9 wt %) trithiodiglycol and 9.6 mol % (5.1 wt %) unreacted ?-mercaptoethanol. Reaction of this product with 35 to 50 wt % solution hydrogen peroxide reduces residual ?-mercaptoethanol to less than 0.02 wt % mercaptan. Residual water of about 3.6 wt % after hydrogen peroxide treatment is reduced to less than 1 wt % by vacuum stripping and/or nitrogen sparge or with a wiped film evaporator.Type: GrantFiled: December 8, 2003Date of Patent: May 17, 2005Assignee: Chevron Phillips Chemical CompanyInventors: Kenneth E. Inkrott, Michael S. Matson, Alex Pauwels
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Publication number: 20040162407Abstract: A catalyst for bulk polymerization of a polymerizable unsaturated compound of the invention comprises a compound having at least one thiol group and a secondary hydroxyl group and represented by the following formula (I): 1Type: ApplicationFiled: February 17, 2004Publication date: August 19, 2004Inventors: Syuji Okamoto, Hiroshi Ueno
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Patent number: 6767923Abstract: Benzhydryl derivatives of the formula I, where the index and the variables are as defined below: X is oxygen or sulfur; R1, R3 are halogen, cyano, nitro, hydroxyl, mercapto, amino, alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylcarbonyloxy, formyloxy, alkylthio, alkenylthio, alkynylthio, alkylamino, dialkylamino, alkylcarbonyl or formyl, where the carbon atoms in the radicals mentioned may be partially or fully halogenated; R2 is halogen, cyano, nitro, hydroxyl, mercapto, amino, alkyl, alkoxy, haloalkyl or haloalkoxy, where the groups R2 may be different if n=2; R4 is alkyl, alkenyl or alkynyl, where the carbon atoms in these radicals may be unsubstituted or partially or fully halogenated; R5, R6 are hydroxyl, alkyl, alkenyl, haloalkyl, haloalkenyl, alkoxy, alkenyloxy, haloalkoxy, haloalkenyloxy, cycloalkyl, cycloalkylalkyl, cycloalkoxy or cycloalkylalkoxy; n is 0, 1 or 2; processes for preparing the compounds I, compositions comprising them and their use for conType: GrantFiled: October 29, 2002Date of Patent: July 27, 2004Assignee: BASF AktiengesellschaftInventors: Ingo Rose, Jordi Tormo i Blasco, Markus Gewehr, Wassilios Grammenos, Bernd Müller, Joachim Rheinheimer, Peter Schäfer, Frank Schieweck, Thomas Grote, Andreas Gypser, Eberhard Ammermann, Gisela Lorenz, Reinhard Stierl, Siegfried Strathmann, Paul Carter, Jürgen Curtze
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Publication number: 20040102653Abstract: A process for preparing polyisobutenyl (thio)ethers by reacting a polyisobutene epoxide having at least one terminal epoxide group with itself, with other epoxides and/or with nucleophiles selected from among alcohols and thiols in the presence of a Lewis-acid compound as catalyst and/or a cationic photoinitiator with illumination is described. The side reaction of the rearrangement of the epoxide to the polyisobutenyl aldehyde is suppressed. In addition, a curable composition comprising a polyisobutene epoxide, an epoxide different therefrom and optionally a poly(thi)ol is also described.Type: ApplicationFiled: November 3, 2003Publication date: May 27, 2004Applicant: BASF AktiengesellschaftInventors: Arno Lange, Helmut Mach, Darijo Mijolovic, Hans Peter Rath
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Publication number: 20040097759Abstract: Alkali metal salt of formula (I): MOYXR1 (I), and its solution can be prepared in high yields, particularly high space-time yields, and with high purities by reacting an alcohol of the formula (Ia): HOYXR1 (Ia), in a solvent mixture with an alkali metal salt of formula (II): MOR2 (II), or by reacting the alcohol (Ia) in a solvent mixture with an alkali metal hydroxide. Part of the liberated alcohol of formula (IIa): HOR2 (IIa) or a part of the liberated water is distilled from the solvent mixture, initially, without addition of an entrainer. Subsequently, a remainder of the liberated alcohol of formula (IIa) or the liberated water is distilled from the solvent mixture with the aid of at least one organic solvent as entrainer. In formula (I) and in formula (II), M is Li, Na, K, Rb or Cs.Type: ApplicationFiled: November 12, 2003Publication date: May 20, 2004Applicant: DEGUSSA AGInventors: Johannes Ruwwe, Klaus Stadtmueller
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Publication number: 20040092754Abstract: The invention relates to a method for producing 2- and 2,5-substituted derivatives of 4-(trifluoromethyl)-phenol and 4-(2-trifluoromethyl)-phenyl)-2-tetrahydropyranyl) ether and to novel derivatives. Said method is characterised in that a compound of formula (2) 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether is reacted with an electrophile E-X or a combination of electrophiles E-X and E-Y in the presence of a base, X and Y having the meanings given in the description.Type: ApplicationFiled: June 30, 2003Publication date: May 13, 2004Inventors: Bernd Schafer, Herve Geneste
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Patent number: 6703422Abstract: The present invention relates to novel sulfide and disulfide compounds, compositions comprising sulfide and disulfide compounds, and methods useful for treating and preventing cardiovascular diseases, dyslipidemias, dysproteinemias, and glucose metabolism disorders comprising administering a composition comprising an ether compound. The compounds, compositions, and methods of the invention are also useful for treating and preventing Alzheimer's Disease, Syndrome X, peroxisome proliferator activated receptor-related disorders, septicemia, thrombotic disorders, obesity, pancreatitis, hypertension, renal disease, cancer, inflammation, and impotence. In certain embodiments, the compounds, compositions, and methods of the invention are useful in combination therapy with other therapeutics, such as hypocholesterolemic and hypoglycemic agents.Type: GrantFiled: October 11, 2001Date of Patent: March 9, 2004Assignee: Esperion Therapeutics, Inc.Inventors: Jean-Louis Henri Dasseux, Carmen Daniela Oniciu
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Patent number: 6677491Abstract: The present invention relates to a fragrance delivery system for use in laundry detergent compositions including rinse-added and dryer-added fabric conditioning compositions which provides a long lasting “freshness” or “clean” scent to fabric. The compositions described herein deliver highly fabric substantive linear acetal and/or ketal pro-fragrances to the fabric surface during laundering wherein the pro-fragrances release their fragrance raw materials over a period of up to two weeks. The present invention also relates a method for delivering a pleasurable scent to fabric which has a lasting freshness quality by contacting the fabric with a laundry detergent composition which comprises the fragrance-releasable pro-fragrances.Type: GrantFiled: May 9, 2002Date of Patent: January 13, 2004Assignee: Procter & Gamble CompanyInventor: Mark Robert Sivik
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Publication number: 20030207938Abstract: Benzhydryl derivatives of the formula I, 1Type: ApplicationFiled: October 29, 2002Publication date: November 6, 2003Inventors: Ingo Rose, Jordi Tormo i Blasco, Markus Gewehr, Wassilios Grammenos, Bernd Muller, Joachim Rheinheimer, Peter Schafer, Frank Schieweck, Thomas Grote, Andreas Gypser, Eberhard Ammermann, Gisela Lorenz, Reinhard Stierl, Siegfried Strathmann, Paul Carter, Jurgen Curtze
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Publication number: 20030165587Abstract: A process for producing 2-furfurylthiol (“FFT”) in Brassica seed includes heating Brassica seed under a temperature and for a time sufficient to produce an elevated amount of FFT in the Brassica seed. The heated seed may be extracted and/or otherwise treated, and may be used to provide a flavorant or odorant to consumables such as foods.Type: ApplicationFiled: February 28, 2002Publication date: September 4, 2003Applicant: Givaudan SAInventors: Eva Christina Binggeli, Klaus Friedrich Gassenmeier, Jeff Molnar, Peter Schieberle
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Publication number: 20030073869Abstract: The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention.Type: ApplicationFiled: September 27, 2002Publication date: April 17, 2003Applicant: The Regents of the University of CaliforniaInventors: Bruce H. Lipshutz, Paul Mollard
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Publication number: 20030065229Abstract: Disclosed are an efficient, safe process for producing artepillin C and derivatives thereof by an organic synthesis. The process comprises a step of reacting a phenol derivative with an acrylate or acrylic acid.Type: ApplicationFiled: November 28, 2001Publication date: April 3, 2003Inventors: Hitoshi Hori, Yoshinori Nakagawa
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Patent number: 6509100Abstract: The present invention discloses hydrogen bond stabilized surface modifying agents having a fluorinated or semi-fluorinated carbon-containing tail group, an internal moiety capable of intermolecular hydrogen bonding or related acid-base interactions and a head group capable of reacting or interacting with surfaces such as metal, non-metallic, ceramic, other inorganic oxide or organic surfaces. The present invention also discloses cost effective method for making the agents, methods for treating surfaces therewith, the treated surfaces and devices made therefrom.Type: GrantFiled: August 18, 1999Date of Patent: January 21, 2003Assignee: The University of Houston SystemInventors: T. Randall Lee, Michael Graupe
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Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications
Patent number: 6379590Abstract: A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D wherein A′ is selected from the group consisting of —Br, —Cl, —F, —NO2, and —CN; A is selected from the group consisting of —NO2, —CN, —CO2R, —C(O)R, —SO2R, —SO2RF, —C(CN)═C(CN)2 and —CH═C(CN)2; RF is —CpF2p+1, p=from about 0 to about 10; R is an straight, branched or cyclic aliphatic alkyl group having about 1 to 10 carbon atoms, or an aromatic group such as phenyl or naphthyl; and is a carbonyl or a protected carbonyl such as a ketal or thio-ketal such as wherein R′ is —CrH2r+1; R″ is —(CH2)r—; and r is independently 2 or 3, with a nucleophilic reagent in the presence of an aprotic solventType: GrantFiled: December 2, 1994Date of Patent: April 30, 2002Assignee: AlliedSignal Inc.Inventors: Chengjiu Wu, Jianhui Shan -
Patent number: 6320062Abstract: 15-HETE derivatives with enhanced metabolic stability and methods of their use for treating dry eye are disclosed.Type: GrantFiled: October 23, 2000Date of Patent: November 20, 2001Assignee: Alcon Universal Ltd.Inventor: David B. Belanger
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Patent number: 6313257Abstract: Polyfunctional mercaptoalkyl-substituted aryl compounds, one and two-part adhesive compositions including the compounds, and methods of making and using the compounds are disclosed. The compounds include one or more aromatic rings, wherein at least one, and in one embodiment, only one aromatic ring is substituted with at least one alkylthio group and at least one oxyalkylthio group, and preferably do not include hydrolyzable linkages. The aromatic nucleus can provide the cured products with higher glass transition temperatures (Tg's) than are available from most commercially available polymercaptans. The adhesive systems include an epoxy resin or other compounds such as terminal olefins which are known to react with thiols (polymerizable material). Preferably, the compounds are used in combination with amine curatives as a two-component curing system for epoxy resins.Type: GrantFiled: March 23, 1999Date of Patent: November 6, 2001Assignee: Lord CorporationInventor: Kirk J. Abbey
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Patent number: 6248687Abstract: Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized with hydrogen sulfide produced from sulfur-containing compounds in a feed stream. In the invention, a compound having mercapto alkylthio group: HS—CmH2m—S— (in which “m” is an integer of 2 to 4) is added as promoter at a proportion of 10 ppm to 0.5% by weight and presulfurization is promoted at 180 to 260° C.Type: GrantFiled: June 30, 1999Date of Patent: June 19, 2001Assignees: Nippon Shokubai Co., LTD, Elf Atochem S.A.Inventors: Hirokazu Itoh, Kazuaki Abe, Yoshihiro Arita, Einosuke Jodo, Kazuya Hata, Tetsushi Kawamura
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Patent number: 6218578Abstract: The invention relates to a polymeric film composed of an optically anisotropic material made from a cross-linked synthetic resin composition comprising a polymer network, being obtainable by copolymerization of a mixture comprising (a) at least one monomer or oligomer, each of said monomers or oligomers having at least two polymerizable functional groups selected from the group consisting of (meth-)acrylate ester, epoxy and vinyl ether, (b) at least one achiral liquid crystalline monomer or oligomer, each of said monomersloligomers having mesogenic groups and one polymerizable functional group selected from the group consisting of (meth-)acrylate ester, epoxy and vinyl ether.Type: GrantFiled: June 8, 2000Date of Patent: April 17, 2001Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: David Coates, Simon Greenfield, Emma Jane Jolliffe
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Patent number: 6129941Abstract: A compound of formula ##STR1## wherein R represents a hydrogen atom or an acetyl group, is useful in perfumery and in the field of flavors. The compound of formula (I) confer an odor and flavor effect extremely powerful of the clary-sage type, even when used in small amounts.Type: GrantFiled: August 13, 1999Date of Patent: October 10, 2000Assignee: Firmenich SAInventors: Sina Dorothea Escher, Matthijs Van De Waal
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Patent number: 6054622Abstract: A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an aromatic hydroxyldisulfide compound, which is then reduced to the hydroxythiol. New bis-diazonium aromatic disulfide compounds are also disclosed.Type: GrantFiled: December 18, 1998Date of Patent: April 25, 2000Assignee: AlliedSignal IncInventors: Mingbao Zhang, David Ryckman, Eric MacMillan
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Patent number: 6054623Abstract: A method for the preparation of hydroxythiol compounds by reacting a hydroxyl-protected halide compound having the structure:X--R--OPgwith magnesium in a Grignard-suitable solvent to form a hydroxyl-protected magnesium halide compound, wherein R is selected from substituted or unsubstituted aliphatic radicals, substituted or unsubstituted cyclic aliphatic radicals, substituted or unsubstituted aromatic radicals, substituted or unsubstituted araliphatic radicals and substituted or unsubstituted heterocyclic radicals; Pg is a protecting group; and X is selected from the group consisting of F, Cl, Br and I; then reacting said hydroxyl-protected magnesium halide compound with sulfur in the Grignard-suitable solvent to form a hydroxyl-protected thiomagnesium halide compound; and hydrolyzing the protected hydroxyl group to form a hydroxythiomagnesium halide compound and converting the thiomagnesium halide to a thiol; wherein the protecting group is selected so that species formed by the de-protection of the protectType: GrantFiled: December 18, 1998Date of Patent: April 25, 2000Assignee: AlliedSignal Inc.Inventors: David Ryckman, Mingbao Zhang, Guohua Chen
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Patent number: 5981809Abstract: A process for preparing a difunctional compound having high enantiomeric purity that is a 1,2-, 1,3-, or 1,4-diol, dithiol, or mercapto alcohol from an optically active starting material that includes an .alpha.-, .beta.-, or .gamma.-hydroxy (or mercapto) aldehyde, ketone, ester, or amide is described. The process is carried out in an anhydrous solvent medium and comprises (1) reducing the starting material with a metal hydride (e.g., sodium borohydride), (2) adding a coreactant that is substituted by at least one, but preferably two, hydroxyl or mercapto groups (e.g., pyrocatechol), and (3) directly distilling the product from the reaction medium. The coreactant preferably has a higher boiling point at normal atmospheric pressure than the difunctional compound. The difunctional compounds are used as reactants for syntheses of agrochemicals or pharmaceuticals, or as precursors for polymers.Type: GrantFiled: March 4, 1996Date of Patent: November 9, 1999Assignee: Rhone-Poulenc ChimieInventor: Xavier Radisson
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Patent number: 5877214Abstract: The present invention is directed to the certain polyaryl-poly(ethylene glycol) compounds ("polyaryl-PEG" compounds) which are useful as soluble polyvalent supports in the preparation of combinatorial libraries of compounds. The resultant combinatorial libraries are useful in screening for biologically active moieties in the drug discovery process or in developing compounds with desired physical and chemical properties.Type: GrantFiled: September 4, 1997Date of Patent: March 2, 1999Assignee: Merck & Co., Inc.Inventor: Ronald M. Kim
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Patent number: 5801260Abstract: Novel substrates of phospholipases, lysophospholipases and lipases are disclosed.Type: GrantFiled: June 7, 1995Date of Patent: September 1, 1998Assignee: LaJolla Pharmaceuticals Co.Inventors: Lin Yu, Robert John Termansky
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Patent number: 5741933Abstract: The present invention provides a process for preparing an aromatic or heteroaromatic thiol represented by the formula (2), the process comprising hydrolyzing an aromatic or heteroaromatic halogenated methyl sulfide represented by the formula (1)Ar.paren open-st.SCH.sub.3-m X.sub.m).sub.n (1)Ar.paren open-st.SH).sub.n (2)wherein Ar is an aromatic or heteroaromatic ring which has no substituent or which has an optional substituent or substituents, X is a halogen atom, m is an integer of 1 to 3 and n is 1 or 2.According to the present invention, an aromatic or heteroaromatic thiol can be prepared at a commercially low cost and with ease.Type: GrantFiled: July 24, 1996Date of Patent: April 21, 1998Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Mikio Yamamoto, Jun-ichi Sakamoto, Hitoshi Karino
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Patent number: 5672662Abstract: Active esters of PEG acids and related polymers are provided that have a single propionic or butanoic acid moiety and no other ester linkages. These polymer acids have a half life in water of from about 10 to 25 minutes. For example, alpha-methoxy, omega-propionic acid succinimidyl ester of PEG ("methoxy-PEG-SPA") has a nearly ideal reactivity with amino groups on proteins and other biologically active substances. The half life of methoxy-PEG-SPA is about 16.5 minutes in water. The invention also provides conjugates with proteins, enzymes, polypeptides, drugs, dyes, nucleosides, oligonucleotides, lipids, phospholipids, liposomes, and surfaces of solid materials that are compatible with living organisms, tissue, or fluid.Type: GrantFiled: October 2, 1995Date of Patent: September 30, 1997Assignee: Shearwater Polymers, Inc.Inventors: J. Milton Harris, Antoni Kozlowski
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Patent number: 5516945Abstract: A new class of Group II bis(oligoetherthiolate) compounds is described for use in chemical vapor deposition processes in that it is volatile and soluble in common organic solvents, thereby rendering it suitable in the preparation of displays with full color, bright phosphors, which at present use ZnS-based technology. The drawback with ZnS is that the blue efficiency is too low. In another competing technology, MGa.sub.2 S.sub.4 -based materials, the sputtered films are amorphous, and the crystallization temperature is too high for inexpensive glass, thereby necessitating the use of expensive quartz. The instant invention secures the advantage of not depositing amorphous material in a two-step process. Rather a one-step process is used to get crystalline material directly, thereby providing a superior route to MGa.sub.2 S.sub.4 in that it has the potential to give higher quality films at reduced cost.Type: GrantFiled: August 18, 1994Date of Patent: May 14, 1996Assignee: Georgia Tech Research CorporationInventors: William S. Rees, Jr., Gertrud E. Kraeuter
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Patent number: 5483008Abstract: The present invention relates to a bifunctional polyether having groups different from each other at both ends, with a polymerization degree of 5 to 10000 and consisting of repeating units each represented by the following formula (I): ##STR1## (wherein R.sub.1, represents a hydrogen atom, halogen atom, or a lower alkyl group optionally substituted by a halogen atom, and R.sub.1 in each repeating unit may be the same or different), as well as to a process for the preparation thereof and a polymerization initiator therefor. The process of production and polymerization initiator of the present invention enable 100% introduction of a primary amino group into one of the ends of polyether.Type: GrantFiled: February 5, 1993Date of Patent: January 9, 1996Assignee: Research Development Corporation of JapanInventors: Yasuhisa Sakurai, Teruo Okano, Masayuki Yokoyama, Kazunori Kataoka, Yukio Nagasaki, Nobuyuki Ohsako, Masao Kato
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Patent number: 5441544Abstract: A fuel additive having the formula: ##STR1## where A.sub.1 is a thioether, a sulfoxide, a sulfone, a sulfonic acid, a sulfonamide, a nitrile, a carboxylic acid or ester, or a carboxamide; R.sub.1 and R.sub.2 are independently hydrogen, hydroxy, lower alkyl, or lower alkoxy; R.sub.3 and R.sub.4 are independently hydrogen or lower alkyl and each R.sub.3 and R.sub.4 is independently selected in each --O--CHR.sub.3 --CHR.sub.4 -- unit; R.sub.5 is hydrogen, alkyl having 1 to 100 carbon atoms, phenyl, aralkyl having 7 to 100 carbon atoms or alkaryl having 7 to 100 carbon atoms, or an acyl group of the formula: ##STR2## where R.sub.6 is alkyl having 1 to 30 carbon atoms, phenyl, aralkyl having 7 to 36 carbon atoms or alkaryl having 7 to 36 carbon atoms; n is an integer from 5 to 100; and x is an integer from 0 to 10.Type: GrantFiled: December 23, 1993Date of Patent: August 15, 1995Assignee: Chevron Chemical CompanyInventor: Richard E. Cherpeck
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Patent number: 5430062Abstract: The present invention relates to stilbene derivatives which possess utility as anti-cancer agents. The compounds can be used to treat cancers which are susceptible to treatment therewith, and can be utilized in a method of treating such cancers. Pharmaceutical compositions containing the compounds are disclosed. Three preferred compounds among those disclosed are (Z)-1-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)ethene, (Z)-1-(4-methylphenyl)-2-(3,4,5-trimethoxyphenyl)ethene, and 4-methyl-3',4',5'-trimethoxybenzylaniline hydrochloride.Type: GrantFiled: June 23, 1993Date of Patent: July 4, 1995Assignee: Research Corporation Technologies, Inc.Inventors: Mark S. Cushman, Ernest Hamel
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Patent number: 5401883Abstract: This invention relates to an improvement in a process for making 2,6-di-tertiarybutyl-4-mercaptophenol and 4,4-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol) which comprises reduction of bis (3,5-di-tertiarybutyl-4-hydroxyphenyl)polysulfide with hydrogen gas at a temperature range of from about 20.degree. C. to about 90.degree. C. in the presence of a catalytic amount of cobalt-molybdenum catalyst.Type: GrantFiled: July 7, 1993Date of Patent: March 28, 1995Assignee: Merrell Dow Pharmaceuticals Inc.Inventors: F. Mark Laskovics, Kim G. Bargeron
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Patent number: 5362916Abstract: Hydroxyaryl enol ether alkali metal salts having the formula: ##STR1## in which T is a fused, substituted or unsubstituted polycycloalkylidene group, OR.sup.3 is an ether group Y is a light-emitting fluorophore-forming group which will be part of a luminescent substance formed by decomposition of a 1,2-dioxetane subsequently formed from the hydroxyaryl enol ether alkali metal salt, capable of absorbing energy to form an excited state from which it emits optically detectable energy to return to its ground state, and AM.sup.30 is an alkali metal cation, processes for the preparation of these intermediate salts, and their use as starting materials for acylation, phosphorylation and glycosylation reactions to give intermediates reactable to give stable, water-soluble chemiluminescent 1,2-dioketames, particularly ones that are enzymatically cleavable, are disclosed.Type: GrantFiled: November 17, 1993Date of Patent: November 8, 1994
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Patent number: 5354511Abstract: Compounds having non-linear optical activity of the general formula ##STR1## wherein D and A are electron donor and acceptor groups, respectively, R.sup.1 and R.sup.2 are aromatic bridging groups, X and Y are preferably groups capable of partaking in polymerization reactions are suitable for use in polymer-based light modulator devices.Type: GrantFiled: November 27, 1992Date of Patent: October 11, 1994Assignee: AlliedSignal Inc.Inventors: Chengjiu Wu, Jianhui Shan, Ajay Nahata
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Patent number: 5338886Abstract: Disclosed is a process for preparation of an aromatic thiol corresponding to the structureA-(SH)nwhereinA is a substituted or unsubstituted aromatic radical and n is 1, 2, 3, 4, 5 or 6 comprising contacting at a temperature of at least 80.degree. C. an aromatic halide corresponding to the structureA-XmwhereinA is the same as above, X is bromine oriodine and n is 1, 2, 3, 4, 5, or 6with thiourea in the presence of nickel metal.Type: GrantFiled: May 17, 1993Date of Patent: August 16, 1994Assignee: Eastman Chemical CompanyInventors: Mark Rule, James T. Tanner, III
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Patent number: 5232836Abstract: Vitamin D derivatives corresponding to the following formula I ##STR1## in which R.sub.1 denotes a substituted alkyl group having 1 to 15 carbon atoms, in particular the side chains of vitamin D.sub.2 (C.sup.20 to C.sup.28) or D.sub.3 (C.sup.20 to C.sup.Type: GrantFiled: February 18, 1992Date of Patent: August 3, 1993Assignee: Ire-Medgenix S.A.Inventors: Roger Bouillon, Pierre J. De Clerco, Pierre Eliard, Maurits Vanderwalle
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Patent number: 5231231Abstract: Poly(1,4-butanediol-.omega.,.omega.'-mercaptans) have the general formulaHS--(CH.sub.2).sub.4 --O--[(CH.sub.2).sub.4 --O].sub.n --(CH.sub.2).sub.4 --SH Iwhere n is from 1 to 150.Type: GrantFiled: October 30, 1989Date of Patent: July 27, 1993Assignee: BASF AktiengesellschaftInventors: Ulrich Koehler, Hardo Siegel, Eckhard Hickmann
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Patent number: 5219562Abstract: A hair treating composition comprising one or more thioglyceryl ethers provides effective wave formation, with a minimized mercapto smell and minimized irritation to the skin.Type: GrantFiled: June 4, 1991Date of Patent: June 15, 1993Assignee: Kao CorporationInventors: Akira Fujiu, Naohisa Kure, Yoshiko Ogura
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Patent number: 5214069Abstract: The invention concerns a compound of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;A.sup.1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;Ar.sup.2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; wherein R.sup.2 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; and whereinR.sup.3 is hydroxy-(1-4C)alkyl, mercapto-(1-4C)alkyl, (1-4C)alkoxy-(1-4C)alkyl, (3-4C)alkenyloxy-(1-4C)alkyl, (3-4C)alkynyloxy-(1-4C)alkyl, (1-4C)alkoxy-(2-4C)alkoxy-(1-4C)alkyl, (1-4C)alkylthio-(1-4C)alkyl, (1-4C)alkylsulphinyl-(1-4C)alkyl, (1-4C)alkylsulphonyl-(1-4C)alkyl, (1-4C)alkoxycarbonyl-(1-4C)alkyl, (2-4C)alkanoyl-(1-4C)alkyl, (2-4C)alkanoyloxy-(1-4C)alkyl or cyano-(1-4C)alkyl; or R.sup.Type: GrantFiled: January 23, 1992Date of Patent: May 25, 1993Assignees: Imperial Chemical Industries PLC, ICI PharmaInventor: Jean-Marc M. M. Girodeau
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Patent number: 5191055Abstract: The present invention relates to a mercapto compound, a process for preparing the mercapto compound, a process for preparing a polythiourethane base resin containing the mercapto compound, and a process for preparing plastic lenses containing the resin.Type: GrantFiled: May 20, 1992Date of Patent: March 2, 1993Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yoshinobu Kanemura, Katsuyoshi Sasagawa, Masao Imai, Toshiyuki Suzuki
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Patent number: 5169989Abstract: An improved process for preparing a polyether polyol of reduced scorching properties comprising buffering of the alkaline polyether polyol before heating to remove water, and the use of said polyether polyol to prepare flexible foam slabstocks.Type: GrantFiled: March 1, 1991Date of Patent: December 8, 1992Assignee: Miles Inc.Inventors: Alfred L. Peterson, Mark S. Solomon, Kenneth E. Reed, Edward P. Squiller
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Patent number: 5143915Abstract: A compound of the formula ##STR1## (symbols defined in the specification), its 3,4-dihydropyrimidine tautomer form and pharmaceutically acceptable salts thereof have calcium entry blocking activity. A process of preparation, pharmaceutical composition and method of using the compound to reduce blood pressure are also provided.Type: GrantFiled: July 25, 1990Date of Patent: September 1, 1992Assignee: E. R. Squibb & Sons, Inc.Inventors: George C. Rovnyak, Spencer D. Kimball
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Patent number: 5136096Abstract: The bis-homotris compounds 4-amino-4-[1-(3-hydroxypropyl)]-1,7-heptanediol and 4-[1-(3-aminopropyl)]-4-[1-(3-hydroxypropyl)]-1, 7-heptanediol, and organic synthetic methods for their preparation are described. Unique multifunctional aminotriols, as well as their percursors, quaternary nitroalkanes are disclosed as building blocks for unimolecular micelles, as well as new series of cascade polymers. The quaternary nitro compounds which are disclosed allow the synthesis of a new aminotriol containing a quaternary carbon.Type: GrantFiled: March 26, 1991Date of Patent: August 4, 1992Assignee: University of South FloridaInventors: George R. Newkome, Charles N. Moorefield
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Patent number: 5093519Abstract: Vitamin D derivatives corresponding to the following formula I ##STR1## in which R.sub.1 denotes a substituted alkyl group having 1 to 15 carbon atoms, in particular the side chains of vitamin D.sub.2 (C.sup.20 to C.sup.28) or D.sub.3 (C.sup.20 to C.sup.Type: GrantFiled: May 1, 1989Date of Patent: March 3, 1992Assignee: Ire-Medgenix S.A.Inventors: Roger Bouillon, Pierre J. De Clercq, Pierre Eliard, Maurits Vandewalle
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Patent number: 5087758Abstract: The present invention relates to a mercapto compound, a process for preparing the mercapto compound, a process for preparing a polythiourethane base resin containing the mercapto compound, and a process for preparing plastic lenses containing the resin.Type: GrantFiled: August 29, 1989Date of Patent: February 11, 1992Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yoshinobu Kanemura, Katsuyoshi Sasagawa, Masao Imai, Toshiyuki Suzuki
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Patent number: 5015758Abstract: A process for the preparation of 1-adamantane derivatives characterized by the fact that a 1-acyloxyadamantane, in which the acyl group contains 1 to 4 carbon atoms, is reacted with a receptor compound in a linear aliphatic or cycloaliphatic type solvent in the presence of concentrated sulfuric acid and at ambient temperature.Type: GrantFiled: September 6, 1989Date of Patent: May 14, 1991Assignee: Centre International de Recherches Dermatologiques (CIRD)Inventors: William R. Pilgrim, Joel Lagiere
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Patent number: 5008432Abstract: Activated olefinically unsaturated organic compounds such as esters, acids, ketones, nitriles, and the like, are reacted with hydrogen sulfide in the presence of at least one of magnesium oxide and anion exchange resins catalysts to produce saturated sulfur-containing compounds. In a specific embodiment, unsaturated carboxylates are converted in high yields to mercaptoalkanoates.Type: GrantFiled: July 11, 1985Date of Patent: April 16, 1991Assignee: Phillips Petroleum CompanyInventor: John S. Roberts
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Patent number: 4996347Abstract: The present invention relates, by way of novel industrial products, to osides selected from the group consisting of:(i) the .beta.-.eta.-phenylthioxylosides of the formula: ##STR1## in which: R represents a hydrogen atom, a halogen atom, a nitro group or a cyano group,A represents the sulfur atom or the oxygen atom,B represents a CH.sub.2, CHOH or CO group andY represents the hydrogen atom or an acyl group; and(ii) epimers thereof when B is CHOH.These products are useful in therapy as antithrombotics.Type: GrantFiled: June 27, 1989Date of Patent: February 26, 1991Assignee: Fournier Innovation et SynergieInventors: Soth Samreth, Francois Bellamy, Jean Millet
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Patent number: 4990679Abstract: Polytetrahydrofuran-dithiols of the formula IHS--CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 O.sub.y --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --SH (I)in which y is an integer from 2 to 30, are suitable as hardeners for epoxide resins, in particular in combination with amines. The hardened systems show good mechanical properties and increased flexibility.Type: GrantFiled: November 22, 1989Date of Patent: February 5, 1991Assignee: Ciba-Geigy CorporationInventors: Jean-Pierre Wolf, Frans Setiabudi
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Patent number: 4988682Abstract: The present invention relates to a method for inhibiting the phosphatidylinositol cycle in a cell by contacting the cell with certain myo-inositol analogs. Such myo-inositol analogs can also be utilized to treat phosphatidylinositol cycle-dependent conditions. The present invention also provides novel myo-inositol analogs.Type: GrantFiled: February 3, 1989Date of Patent: January 29, 1991Assignee: University of PittsburghInventor: Alan P. Kozikowski
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Patent number: 4985582Abstract: Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes, having 2 or 3 ring hetero atoms selected from O, S and N substituted at the 1-position by a carbocyclic group other than an alkynylphenyl group, and substituted at the 4-position and optionally substituted at the 3 and/or 5 position, are valuable pesticides, particularly insecticides and acaricides. Various cyclization processes are disclosed to form the various bicyclo ring systems.Type: GrantFiled: September 1, 1989Date of Patent: January 15, 1991Assignee: The Wellcome Foundation Ltd.Inventor: John P. Larkin