Sulfoxy In Acid Moiety Patents (Class 560/149)
  • Patent number: 6180667
    Abstract: Esters of alkanoyl L-carnitines wherein the alkanoyl is a saturated or unsaturated, staight or branched alkanoyl having 2-26 carbon atoms, optionally &ohgr;-substituted with trialkylammonium, dialkylsulfonium, hydroxyl, carboxyl, halogen, methanesulfonyl and hydroxysulfonyl, are useful for preparing pharmaceutical compositions for the treatment of endotoxic shock.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: January 30, 2001
    Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
    Inventors: Piero Foresta, Vito Ruggiero, Maria Ornella Tinti, Nazareno Scafetta
  • Patent number: 6159988
    Abstract: Compounds of formula I, ##STR1## and the physiologically tolerable salts thereof, wherein the substituents R.sub.1 -R.sub.4 have the meanings given in the specifications and show an activity against inflammatory conditions.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: December 12, 2000
    Assignee: Hoeschst Aktiengesellschaft
    Inventors: Ramachandra Ganapati Naik, Vilas Narayan Mumbaikar, Ravishankar Vasumathy, Aftab Dawoodbhai Lakdawala, Mandakini Bipin Alreja, Bansi Lal, Jurgen Blumbach, Klaus Ulrich Weithmann, Robert Ryder Bartlett, Kalpana Sanjay Joshi, Swati Bal-Tembe, Sadagopan Raghavan
  • Patent number: 5997610
    Abstract: The invention concerns amphiphilic compounds of general formula (I) ##STR1## with at least two hydrophilic and at least two hydrophobic groups based on diacarboxylic acid diamides. The amphiphilic compounds according to the invention are mostly surface-active and are suitable for use as emulsifiers, demulsifiers, detergents, dispergents and hydrotropic agents in industry and households, for example, in the treatment of metals, ore processing, surface finishing, washing, cleaning, cosmetics, medicine and food processing and preparation.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: December 7, 1999
    Assignee: Huels Aktiengesellschaft
    Inventors: Klaus Kwetkat, Wulf Ruback
  • Patent number: 5670684
    Abstract: The present invention provides novel intermediates which are useful for the preparation of excitatory amino acid receptor antagonists. Further provided is a process to enatioselectively prepare hydroisoquinoline compounds with central nervous system activity.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: September 23, 1997
    Assignee: Eli Lilly and Company
    Inventors: Anita Melikian-Badalian, Paul L. Ornstein
  • Patent number: 5625085
    Abstract: Esters of alkanoyl L-carnitines wherein the alkanoyl is a saturated or unsaturated, straight or branched alkanoyl having 2-26 carbon atoms, optionally .omega.-substituted with trialkylammonium, dialkylsulfonium, hydroxyl, carboxyl, halogen, methanesulfonyl and hydroxysulfonyl, are useful for preparing pharmaceutical compositions for the treatment of endotoxic shock.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: April 29, 1997
    Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
    Inventors: Piero Foresta, Vito Ruggiero, Maria O. Tinti, Nazareno Scafetta
  • Patent number: 5616782
    Abstract: Disclosed are alkyl sulfoacetate compositions comprising a sulfonated ester of the formula:RO(CH.sub.2 CHR.sub.1 O).sub.n COCH.sub.2 SO.sub.3 MwhereR represents straight chain alkyl having from about 6 to 20 carbon atoms;R.sub.1 is hydrogen, methyl, or ethyl;n is 0, or an integer of from 1 to 20; andM represents a cation;the composition being substantially free from monochloroacetate salts and monochloroacetic acid. These compositions are prepared by reacting an alkyl chloroester of the formula RO(CH.sub.2 CHR.sub.1 O).sub.n COCH.sub.2 Cl where R, R.sub.1 and n are as defined above with an excess of sodium sulfite in the presence of a sulfitation catalyst at a temperature of at least about 75.degree. C. Also disclosed are oral care compositions comprising these surfactant compositions.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: April 1, 1997
    Assignee: Stepan Company
    Inventors: Ralph Thompson, Ned M. Rockwell, Ann M. Michels, William R. Mohring, Kevin C. Kolbe, J. Duke Seibold, James M. Butterwick
  • Patent number: 5587499
    Abstract: These compounds are denoted by the following formula (I): ##STR1## in which: Z denotes H or a linear or branched alkyl radical,X denotes O or S,each of A and B independently denotes an alkylene radical, it being possible for this radical to be substituted,R denotes H or an alkali metal, or else a linear or branched alkyl radical,x has the value of 0 or 1, andy has the value of 0, 1 or 2,the radical A not existing if x and y are both equal to 0, X being incapable of denoting O when R=alkyl and when R=H with x=y=0, and B being incapable of denoting optionally substituted methylene when X=S, x=y=0 and R=alkyl.According to the invention, different simple and efficient processes are proposed for preparing these new compounds, which can be applied to the preparation of new polymers and copolymers.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: December 24, 1996
    Assignee: ELF Atochem S.A.
    Inventors: Mich ele Curci, Jean-Luc Mieloszynski, Daniel Paquer
  • Patent number: 5525629
    Abstract: Hydroxamic acid derivatives of formula (I): ##STR1## wherein R.sup.1 represents hydrogen or an (C.sub.1 -C.sub.6)alkyl, (C.sub.1 -C.sub.6)alkoxycarbonyl(C.sub.1 -C.sub.6)alkyl, phenyl, substituted phenyl, phenyl(C.sub.1 -C.sub.6)alkyl, heterocyclyl, (C.sub.1 -C.sub.6)alkylcarbonyl, phenacyl or substituted phenacyl group;R.sup.2 represents hydrogen or a (C.sub.1 -C.sub.6)alkyl, (C.sub.2 -C.sub.6)alkenyl, phenyl(C.sub.1 -C.sub.6)alkyl, cycloalkyl(C.sub.1 -C.sub.6)alkyl or cycloalkenyl(C.sub.1 -C.sub.6)alkyl group,R.sup.3 represents a group --CH.sub.2 CO.sub.2 (C.sub.1 -C.sub.4)alkyl or --CH.sub.2 CH.sub.2 CO.sub.2 (C.sub.1 -C.sub.4)alkyl;R.sup.4 represents hydrogen or a (C.sub.1 -C.sub.6)alkyl or phenyl(C.sub.1 -C.sub.6)alkyl group;R.sup.5 represents hydrogen or a methyl group;n is 0, 1 or 2;and A represents a (C.sub.1 -C.sub.6)hydrocarbon chain optionally substituted with one or more (C.sub.1 -C.sub.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: June 11, 1996
    Assignee: British Bio-Technology Limited
    Inventors: Michael J. Crimmin, William A. Galloway, Andrew J. Gearing
  • Patent number: 5491170
    Abstract: .beta.-Carboxy sulfonyl compounds of the formula ##STR1## wherein R.sub.1 is aryl, R.sub.3 is hydrogen or alkyl, R.sub.3 and R.sub.4 are hydrogen or alkyl, Y is --O--, --S--, or --NR.sub.2 --, and R.sub.5 is alkyl or aryl are potent inhibitors of the enzyme acyl CoA:cholesterol acyltransferase (ACAT) and are thus useful for treating hypercholesterolemia and atherosclerosis.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: February 13, 1996
    Assignee: Warner-Lambert Company
    Inventors: Helen T. Lee, Joseph A. Picard, Drago R. Sliskovic
  • Patent number: 5489705
    Abstract: Sodium salt of 1-menthyloxycarbonyl 1-hydroxy methanesulphonic acid, its preparation process and its use for obtaining L(-)menthyl glyoxylate.Product of formula (I).
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: February 6, 1996
    Assignee: Societe Francaise Hoechst
    Inventor: Alain Schouteeten
  • Patent number: 5476966
    Abstract: This invention relates to certain S-substituted homocysteine sulfoximines and their uses. Buthionine sulfoximine (BSO) appears to have significant uses for chemotherapy and radio therapy, especially combination chemotherapy and radiation therapy and for treatment of subjects with parasitic infections. The compounds of the invention have the same above-mentioned utilities as BSO but have one or more superior attributes when compared to BSO.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: December 19, 1995
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Mary Anderson, Alton Meister
  • Patent number: 5442094
    Abstract: Product of formula (I) ##STR1## preparation process and use of the product of formula (I) according to claim 1 for obtaining the product of formula (II).
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: August 15, 1995
    Assignee: Societe Francaise Hoechst
    Inventor: Alain Schouteeten
  • Patent number: 5399642
    Abstract: This invention relates to latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers. In addition, this invention relates to novel polymers and block copolymers formed using these latent thiol mercaptan chain transfer agents.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: March 21, 1995
    Assignee: Rohm & Haas Company
    Inventors: William D. Emmons, Andrew W. Gross
  • Patent number: 5166373
    Abstract: 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: Grant
    Filed: December 30, 1991
    Date of Patent: November 24, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka
  • Patent number: 5138091
    Abstract: Cardioactive dihydropyridines of the formula ##STR1## in which Y is ##STR2## A is H or CH.sub.3, B is --NH, --NH--CO--, --NH--CS--, --NH--COO--, --NH--SO.sub.2 --or --NH--CO--NH-- or --NH--CS--NH--, andR.sup.13 and R.sup.14 each independently is H or an organic radical,and salts thereof. The Y can be hydrolyzed off. The other radicals on the dihydropyridine moiety can also be varied.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: August 11, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Stoltefuss, Martin Bechem, Rainer Gross, Siegbert Hebisch, Matthias Schramm
  • Patent number: 5107021
    Abstract: The invention relates to polyfluoroalkyl nitrogen compounds of general formula:R.sub.F --(CH.sub.2).sub.2 --Xin which X denotes an isothiocynate --N.dbd.C.dbd.S, carbodiimide --N.dbd.C.dbd.N(CH.sub.2).sub.2 --R'.sub.F or thiourea --NH--CS--A group, A denoting an optionally substituted amino group, and each of the symbols R.sub.F and R'.sub.F denotes a perfluoroalkyl radical.These compounds, prepared from the corresponding azides R.sub.F (CH.sub.2).sub.2 N.sub.3 or amines R.sub.F (CH.sub.2).sub.2 NH.sub.2, can be used as surface-active agents or precursors of such agents.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: April 21, 1992
    Assignee: Societe ATOCHEM
    Inventors: Eric Bollens, Francois Szonyi, Aime Cambon
  • Patent number: 5097049
    Abstract: Chiral epoxybutyrates are prepared in high yield from novel dihydro-3R-substituted sulfonyloxy-4R-hydroxy-2-(3H)furanones via based catalyzed alcoholysis. The product chiral epoxy butyrates are useful intermediates for the synthesis of 1-carba-1-dethia cephem antibiotics.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: March 17, 1992
    Assignee: Eli Lilly and Company
    Inventor: Leland O. Weigel
  • Patent number: 5010105
    Abstract: Compounds of Formula (I) and (II): ##STR1## are HMG-CoA reductase inhibitors.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: April 23, 1991
    Assignee: Merck & Co., Inc.
    Inventor: Ta J. Lee
  • Patent number: 5010189
    Abstract: The invention relates to novel processes and intermediates for the preparation of 5-amino-4-hydroxyvaleric acid derivatives of the formula ##STR1## in which R.sup.1 represents hydrogen, optionally substituted alkyl, cycloalkyl, cycloalkyl-lower alkyl, aryl, aryl-lower alkyl or the radical of a natural amino acid, R.sup.2 represents hydrogen, optionally substituted alkyl, cycloalkyl, cycloalkyl-lower alkyl, aryl, aryl-lower alkyl, amino, hydroxy, mercapto, sulphinyl, sulphonyl or the radical of a natural amino acid, and R.sup.3 represents optionally substituted hydroxy or amino, by sigmatropic rearrangement of a suitable allyl ester, halolactonization of the resulting .gamma.,.delta.-unsaturated acid or of a suitable derivative thereof, exchange of halogen for a nitrogen-containing nucleophile, opening of the lactone ring and freeing of the amino group. Compounds of the formula I are starting materials for the preparation of renin-inhibitors which have an anti-hypertensive action.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: April 23, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Herold, Christof Angst
  • Patent number: 5008442
    Abstract: A compound of the formulaA[(Y-O).sub.x - Y - Z].sub.min which A is the radical of an arylated fatty alcohol, Y are identical or different groups of the formulae--CH.sub.2 --CH.sub.2 -- or --CH.sub.2 --CH(CH.sub.3)--,Z are identical or different radicals of the formulae --OH, --O--CO--CH.dbd.CH--COOM and --O--CO--CH.sub.2 --CH(SO.sub.3 M)--COOM,in whichM is a cation,x is an integer from 1 to 150, andm is a number from 1 to 7.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: April 16, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Uhrig, Klaus Ehl, Reinhold Deubel
  • Patent number: 4973732
    Abstract: Polymers, such as polysiobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 27, 1990
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • Patent number: 4973733
    Abstract: Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 27, 1990
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • Patent number: 4968599
    Abstract: Fluoroalkyl surface active agents are provided as effective coating aids for hydrophilic colloid coating compositions for photographic materials. These coating aids are of the formula: ##STR1## where M is a cation,x and y are each independently 0 or an integer of from 1 to 6 such that the sum of x and y is an integer of from 2 to 6, andp and q are each independently 1 or 2, with the proviso that when the sum of x and y is 6, p and q are each 1, and when the sum of x and y is 2, p and q are each 2.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 6, 1990
    Assignee: Eastman Kodak Company
    Inventors: Alan R. Pitt, Trevor J. Wear
  • Patent number: 4929736
    Abstract: Certain amino-acid derivatives are disclosed as effective inhibitors of human leukocyte elastase and therefore useful in preventing the imbalance of this proteolytic enzyme in vivo. The compounds specifically are derivatives L-valine, L-norvaline, L-norleucine, and L-methionine methyl ester azolides succinimides or pyridones and sulfonate salts, and related compounds such as L-leucine and L-phenylalanine methyl ester derivatives. The compounds were found to be excellent inhibitors in that they embody both inhibitory and anti-oxidant or anti-inflammatory activity.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: May 29, 1990
    Assignee: Board of Trustees of the Wichita State University
    Inventor: William C. Groutas
  • Patent number: 4736055
    Abstract: Oxime sulfonates of formula I ##STR1## wherein Y is a polymerizable unsaturated group or epoxide group or an --OH, --NHR.sup.5, --COOH, COOR.sup.6, --COCl, --CH.sub.2 Hal, --SO.sub.2 Cl or --NCO group, Z is an (x+y)-valent connecting member, R.sup.1 and R.sup.2 are monovalent organic radicals, m is 0 or 1, x is 1 or 2 and y is 1 or 2, can be converted into polymers which can be thermally or photochemically dissociated to form free sulfonic acid groups. Said polymers can therefore be used as photoresists which can be developed with aqueous alkalis.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 5, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Dietliker, Werner Rutsch, Godwin Berner, Max Hunziker, Christopher G. Demmer
  • Patent number: 4643990
    Abstract: N-acylpeptides are disclosed of the formula: ##STR1## wherein R.sup.1 is alkanoyloxy or alkenoyloxy; R.sup.2 is alkyl or alkenyl; R.sup.3 and R.sup.4 are each lower alkyl, hydroxy(lower)alkyl, ar(lower)alkyl, esterified carboxy(lower)alkyl, carboxy(lower)alkyl, protected amino(lower)alkyl or amino(lower)alkyl; R.sup.5 is hydrogen, hydroxy(lower)alkyl, protected amino(lower)alkyl, amino(lower)alkyl, carboxy(lower)alkyl or esterified carboxy(lower)alkyl; R.sup.6 is carboxy, esterified carboxy or sulfo(lower)alkyl; A.sup.1, A.sup.2 and A.sup.3 are each bond or lower alkylene; and m and n are each an integer of 0 or 1; or its pharmaceutically acceptable salt. These compounds have anti-complementary activity and fibrinolytic activity, and are useful as therapeutic agents for immune-complex diseases or autoimmune diseases such as nephritis, rheumatic diseases, systemic lupus erythematosus, etc. and thrombosis such as cerebral apoplexy, coronary insufficiency, pulmonary embolism, etc.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: February 17, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Kazuyoshi Umehara, Keizo Yoshida, Hirokazu Tanaka, Itsuo Uchida, Masanobu Kohsaka, Hiroshi Imanaka
  • Patent number: 4600774
    Abstract: Cyclic sulfoperfluoroaliphaticcarboxylic acid anhydrides, amide derivatives thereof, a process for making the same, curable compositions containing cyclic sulfoperfluoroaliphaticcarboxylic acid anhydrides or amide derivatives thereof and cationically-sensitive monomers, and a process for using cyclic sulfoperfluoroaliphaticcarboxylic acid anhydrides or amide derivatives thereof as catalysts for the cure of cationically-sensitive monomers.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: July 15, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Robert J. Koshar
  • Patent number: 4584196
    Abstract: Perfluorinated surface-active block or random oligomers of the formula ##STR1## where R denotes a C.sub.2 -C.sub.18 -hydrocarbon or -hydrofluorocarbon radical,Y denotes a C.sub.6 -C.sub.13 -fluorocarbon or -hydrofluorocarbon radical which can contain a chain oxygen atom,Z denotes a group which confers solubility in water andp and q denote integers or decimal numbers from 0.5 to 30are provided. They are suitable for use in cosmetic compositions for the treatment of hair. They slow down the flow of sebum and the rate at which hair becomes greasy again.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: April 22, 1986
    Assignee: L'Oreal
    Inventors: Guy Vanlerberghe, Henri Sebag
  • Patent number: 4567004
    Abstract: Monomethyl-substituted methylene compounds are obtained by reacting methylene compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent --CN, --CO--R.sup.3, --SO.sub.2 --R.sup.3 or --NO.sub.2 andR.sup.1 can additionally denote -aryl(R.sup.1).sub.n,whereinR.sup.3 denotes --OH, alkyl, aralkyl, aryl, alkoxy, aralkoxy or aryloxy, or amino which is substituted by alkyl and/or aralkyl and/or aryl, and furthermoretwo radicals R.sup.3 together can be an alkylene group, the radical of an aliphatic diol or of an aliphatic diamine or the group --NH--CO--NH-- and n represents 1, 2 or 3,with formaldehyde and with hydrogen in the presence of a condensation catalyst and a hydrogenation catalyst at elevated temperature, the methylene compound being introduced into the liquid phase of the mixture of reactants in the course of the reaction.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: January 28, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz U. Blank, Erich Wolters
  • Patent number: 4546198
    Abstract: Stereoisomerically-enriched esters are prepared by treating a non-symmetrical ketene with a racemic or chiral tertiary-base-substituted alkylcarbinol. Optional hydrolysis of the esters gives the corresponding optically-active carboxylic acids corresponding to the non-symmetrical ketene.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: October 8, 1985
    Assignee: Shell Oil Company
    Inventor: Donald W. Stoutamire
  • Patent number: 4522764
    Abstract: The title compounds are obtained by reacting compounds corresponding to the following formula:R.sub.1 --CH.dbd.CH--CO.sub.2 R.sub.2wherein R.sub.1 represents hydrogen or a methyl group and R.sub.2 represents a primary or secondary C.sub.1 to C.sub.4 alkyl group, with from 0.6 to 1.6 mol. equivalents of SO.sub.3 and, optionally, with from 0.1 to 10 mol. equivalents of an alkylating agent at temperatures in the range from -10.degree. to +25.degree. C., subsequently heating the resulting reaction mixture for 0.5 to 6 hours to 70.degree.-200.degree. C. and then working it up by distillation.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: June 11, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Theo Neukam, Wolfgang Brauer, Siegfried Korte
  • Patent number: 4474806
    Abstract: Sulfonyl or carbonyl derivatives of inositols are found to be effective phospholipase C inhibitors and thereby potent anti-inflammatory and analgesic agents. These inositol derivatives are prepared by condensation of a protected inositol with a substituted sulfonic or carboxylic acid derivative followed by removal of protecting groups.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: October 2, 1984
    Assignee: Merck & Co., Inc.
    Inventors: Thomas R. Beattie, Shu S. Yang
  • Patent number: 4444682
    Abstract: A method for sulfating a hydroxy amino acid or a residue of such an amino acid in a peptide by reaction with a reagent which is a tertiaryammonium salt of acetylsulfuric acid having the formula:[CH.sub.3 COOSO.sub.3 ].sup.- [R].sup.+wherein R is triethylamine, ethyldiisopropylamine, pyridine, 4-methylmorpholine or 4-N,N-dimethylaminopyridine. The .alpha.-amino group and any other labile side chains present may be protected or may be left unprotected at the time the sulfation takes place.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: April 24, 1984
    Assignee: The Salk Institute for Biological Studies
    Inventors: Jean E. F. Rivier, Botond Penke
  • Patent number: 4430271
    Abstract: This invention relates to a process for neutralizing detergent acid mixes containing unreacted sulfating agent such as sulfuric acid with an alkaline component such as sodium hydroxide. The neutralization process is highly exothermic and contains as a by-product large amounts of sodium sulfate. Due to the exothermic nature of the reaction it is necessary to use heat exchangers to regulate the temperature of the reaction mass following the addition of the alkaline component. When the sodium sulfate is supersaturated in the reaction mass, it has been observed that sulfate salts buildup upon the surfaces of the heat exchanger and eventually the system must be shut down to remove the buildup. This invention is therefore directed to a continuous neutralization and heat exchange process wherein the downtime required for removal of the sulfate salts from the heat exchanger surfaces is effectively eliminated.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: February 7, 1984
    Inventors: Brandon H. Barton, John A. Sagel
  • Patent number: 4404143
    Abstract: A high concentration aqueous solution of the salt of an alpha-sulfo fatty acid ester is produced by (a) neutralizing the sulfonated product of a fatty acid ester with an aqueous caustic alkali solution having a concentration of 15 through 50% by weight, in the presence of an alcohol having 1 to 4 carbon atoms in an amount of 5 through 20% by weight based on the weight of the sulfonated product, to form an acidic neutralized product having a pH of 2.5 through 4 and; then, (b) adding an aqueous caustic alkali solution having a concentration of 1 through 5% by weight to the acidic neutralized product to adjust the pH of the acidic neutralized product to 6 through 7. The aqueous solution of the salt of the alpha-sulfo fatty acid ester thus obtained includes only small amounts of the undesired alpha-sulfo fatty acid salt.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: September 13, 1983
    Assignee: Lion Corporation
    Inventors: Shizuo Sekiguchi, Yozo Miyawaki, Toshiaki Ogoshi
  • Patent number: 4327034
    Abstract: Sulfamic acid halides and processes for the preparation of sulfamic acid halides by reaction of monosubstituted sulfamic acid halides with halogen compounds in the presence of specific amounts of a basic compound and in the presence of an organic solvent, if desired with subsequent treatment with water at a pH of at most 7. The compounds obtainable by the process of the invention, some of which are new, are valuable starting materials for the preparation of crop protection agents, dyes and drugs.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: April 27, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Adolf Parg, Karl-Heinz Koenig
  • Patent number: 4326066
    Abstract: Coumarin compounds of the formula ##STR1## in which the substituents have the meanings given inthe description,are valuable whiteners for natural fibre materials, such as wool, or synthetic polycondensates. They can also be used as scintillators and laser dyestuffs.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: April 20, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Eckstein, Roderich Raue, Carl-Wolfgang Schellhammer
  • Patent number: 4197245
    Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the A.sub.1 series.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: April 8, 1980
    Assignee: American Cyanamid Company
    Inventor: Allan Wissner
  • Patent number: 4172839
    Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the F.sub.2 series.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: October 30, 1979
    Assignee: American Cyanamid Company
    Inventor: Allan Wissner
  • Patent number: 4170597
    Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the E.sub.2 series.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: October 9, 1979
    Assignee: American Cyanamid Company
    Inventor: Allan Wissner
  • Patent number: 4159991
    Abstract: .alpha.-Acyloxy-N,N'-diacylmalonamides of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different and are hydrogen, straight chain or branched alkyl radicals having from one to eleven carbon atoms, or hydrocarbon radicals with six to twelve carbon atoms and comprising at least one aromatic ring, are novel compounds prepared by the action of a mixture of carboxylic acids R.sub.3 COOH and R.sub.4 COOH upon an .alpha.-acyloxymalononitrile, R.sub.1 COO--C(CN).sub.2 --R.sub.2, in the presence of an acid catalyst and are useful as intermediates in organic synthesis and low temperature activators in bleaching or scouring compositions.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: July 3, 1979
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Bernard Dubreux, Serve Y. Delavarenne, Jean-Pierre Schirmann
  • Patent number: 4074060
    Abstract: Auramine salts having an ester of sulfopropionic acid as anion. The salts are more stable in storage than known auramine salts and therefore very suitable for the preparation of storage-stable solutions.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: February 14, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Eisert, Karl Schmeidl