Substituted Patents (Class 560/264)
  • Patent number: 4415701
    Abstract: Disclosed in this invention are copolymers containing about 0.5% to about 20%, by weight, of a C.sub.10 -C.sub.36 monoepoxide and about 99.5% to about 80%, by weight, of a 1,3 dioxolane. These copolymers are useful in increasing the viscosity of aqueous systems employed in various end uses, such as coatings and hydraulic fluids.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: November 15, 1983
    Assignee: Celanese Corporation
    Inventor: Barry J. Bauer
  • Patent number: 4407825
    Abstract: Compounds of formulaR.sub.1 O--(CH.sub.2).sub.m --S--S--(CH.sub.2).sub.p --S].sub.x S--(CH.sub.2).sub.n --OR.sub.2wherein R.sub.1 and R.sub.2 are, independently, hydrogen, C.sub.1-5 alkyl or a physiologically-hydrolyzable and -acceptable acid residue; m and n are, independently, 2 or 3; p is an integer of fron 2 to 6; and x is 1, 2 or 3; whereby when x is 2 or 3, each p may be the same or different, having immunostimulant activity.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: October 4, 1983
    Assignee: Sandoz Ltd.
    Inventors: Peter Hiestand, Michael Strasser
  • Patent number: 4395430
    Abstract: A novel class of alpha-keto geminal diacyloxy compounds is disclosed. These compounds are useful as vicinal diketone generators in foodstuffs. Use for this purpose is also disclosed.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: July 26, 1983
    Assignee: Hercules Incorporated
    Inventors: Brian Byrne, Robert S. DeSimone
  • Patent number: 4360694
    Abstract: The object of the present invention is a novel and simple process for the production of 1,2-diacyl-sn-glycerols, wherein the acyl groups may be the same or different. According to the invention D-mannitol is reacted with benzene boronic acid or a derivative thereof to form a D-mannitol-monobenzeneboronate which compound is acylated either to form, after removal of the benzeneboronate protective group, a 1,2,5,6-tetraacyl-D-mannitol with four identical acyl groups, or is acylated selectively in two stages, by first acylating the 1,6-hydroxy groups of the boronate protected D-mannitol to form, after removal of the boronate protection, a 1,6-diacyl-D-mannitol, which then is repeatedly reacted with a benzene boronic acid or a derivative thereof and then acylated in the 2- and 5-positions.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 23, 1982
    Assignee: KSV-Chemicals Oy
    Inventors: Paavo K. J. Kinnunen, Tom M. Schroder, Jorma A. Virtanen
  • Patent number: 4336382
    Abstract: There are disclosed compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of lower alkyl; R.sub.8 is selected from the group consisting of --O--(CH.sub.2).sub.n --wherein n is 2 to 20, ##STR2## and R.sub.6 is selected from the group consisting of hydrogen or lower alkoxy, and ##STR3## wherein R.sub.1 is selected from the group consisting of lower alkyl; R.sub.8 is selected from the group consisting of --O--(CH.sub.2).sub.n --wherein n is 2 to 20, ##STR4## and R.sub.6 is selected from the group consisting of hydrogen or lower alkoxy and racemates thereof.There are also disclosed processes and intermediates utilized to produce the end products.The end products have utility as agents exhibiting both .alpha. and selective .beta. adrenergic blocking action.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: June 22, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Kenneth E. Fahrenholtz, Robert W. Guthrie, Richard W. Kierstead, Jefferson W. Tilley
  • Patent number: 4332738
    Abstract: The esterification of neo acids catalyzed by the presence of a macro-reticular structured sulfonic acid cation exchange resin proceeds under mild conditions with a wide variety of alcohols to give readily recoverable esters in high yields and high purity and an easily recoverable and reusable catalyst.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: June 1, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Francisco M. Benitez, Michael F. English
  • Patent number: 4330677
    Abstract: The invention relates to polyethers having an an average molecule weight of 3000 to 5000 and having a propylene oxide proportion of 60 to 80% and an ethylene oxide proportion of 20 to 40%. Also included in the invention are compositions containing said polyethers and methods for the use of said polyethers and compositions, particularly for their anti-lipidaemic effect.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: May 18, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Linke, Mithat Mardin, Hans P. Krause, Rudiger Sitt
  • Patent number: 4316991
    Abstract: The modification of polyether polyols by their reaction with epoxy resin and alkylene oxides is described. The modified polyols of 2000 to 7000 molecular weight produce flexible polyurethane foams that have higher load bearing properties than foams made with nonmodified polyols. The ability of a modified polyol to make a higher load bearing foam is related to the position in the polyol chain the epoxy resin is added.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: February 23, 1982
    Assignee: Texaco Inc.
    Inventors: George P. Speranza, Michael Cuscurida, Robert L. Zimmerman
  • Patent number: 4310465
    Abstract: A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: January 12, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Gary L. Olson, Gabriel Saucy
  • Patent number: 4298758
    Abstract: Propylene glycol and dipropylene glycol diesters are prepared by reacting dichloropropyl ethers with a carboxylic acid salt, e.g., sodium acetate, and the corresponding carboxlyic acid, e.g., acetic acid. The by-product sodium chloride is insoluble in the acetic acid and easily separated from the reaction mixture. The diesters can be hydrolyzed to their respective glycols.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: November 3, 1981
    Assignee: The Dow Chemical Company
    Inventors: Frank T. Cook, Donald G. Prier
  • Patent number: 4266080
    Abstract: Perfluoroalkyl compounds containing ether groups have the formulaR.sub.f R.sub.1 SCH.sub.2 CH.sub.2 O T Zwherein R.sub.f is a perfluoroalkyl, R.sub.1 is alkylene or alkyleneoxy or aminoalkylene, T is alkylene, and Z is hydrogen; hydroxy; NR.sub.3 R.sub.4, where R.sub.3 and R.sub.4 each is alkyl or together with nitrogen form a heterocyclic ring; N.sup.+ R.sub.3 R.sub.4 (R.sub.5)X.sub.z.sup.-y, where R.sub.5 is hydrogen, oxide, alkyl, or substituted alkyl, X is an anion, and y is 1 or 2; z is 0 or 1 or is --OCH.sub.2 CH.sub.2 SR.sub.1 R.sub.f ; can be prepared directly by free-radical catalyzed addition of a perfluoroalkylthiol to a vinyl ether or subsequent reaction. These compounds are useful as surfactants and oil spill collecting agents.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: May 5, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert A. Falk, Karl F. Mueller
  • Patent number: 4247710
    Abstract: There are disclosed compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of lower alkyl; R.sub.8 is selected from the group consisting of --O--(CH.sub.2).sub.n --wherein n is 2 to 20, ##STR2## R.sub.6 is selected from the group consisting of hydrogen or lower alkoxy, and ##STR3## wherein R.sub.1 is selected from the group consisting of lower alkyl; R.sub.8 is selected from the group consisting of --O--(CH.sub.2).sub.n --wherein n is 2 to 20, ##STR4## and R.sub.6 is selected from the group consisting of hydrogen or lower alkoxy and racemates thereof.There are also disclosed processes and intermediate utilized to produce the end products.The end products have utility as agents exhibiting both .alpha. and selective .beta. adrenergic blocking action.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: January 27, 1981
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Kenneth E. Fahrenholtz, Robert W. Guthrie, Richard W. Kierstead, Jefferson W. Tilley
  • Patent number: 4238397
    Abstract: Hydroxyl-terminated liquid polymers having an aliphatic polymeric backbone and sulfide linkages near the terminal portions of the polymer molecule are prepared by polymerizing (1) at least one vinylidene monomer having at least one terminal CH.sub.2 .dbd.C< group per monomer molecule, together with (2) a mixture of at least one hydroxyl-containing disulfide and at least one hydroxyl-containing trisulfide. Use of the above disulfide-trisulfide mixture permits viscosity control during polymerization with substantially less disulfide required than if the disulfide alone were used, and the resulting polymers have less odor and discolor less upon heating than if the disulfide alone were used.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: December 9, 1980
    Assignee: The B. F. Goodrich Company
    Inventor: Jack C. Gilles
  • Patent number: 4223160
    Abstract: Niobium and ruthenium salts are employed as catalyst in the reaction of oxirane compounds with carboxylic acids. The acrylate esters produced can be used in photocurable compositions.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: September 16, 1980
    Assignee: Union Carbide Corporation
    Inventor: Lawrence G. Hess
  • Patent number: 4207238
    Abstract: Hydroxyl-terminated liquid polymers having an aliphatic polymeric backbone and sulfide linkages near the terminal portions of the polymer molecule are prepared by polymerizing (1) at least one vinylidene monomer having at least one terminal CH.sub.2 .dbd.C< group per monomer molecule, together with (2) a mixture of at least one hydroxyl-containing disulfide and at least one hydroxyl-containing trisulfide. Use of the above disulfide-trisulfide mixture permits viscosity control during polymerization with substantially less disulfide required than if the disulfide alone were used, and the resulting polymers have less odor and discolor less upon heating than if the disulfide alone were used.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: June 10, 1980
    Assignee: The B. F. Goodrich Company
    Inventor: Jack C. Gilles
  • Patent number: 4201726
    Abstract: A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: May 6, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Gary L. Olson, Gabriel Saucy
  • Patent number: 4172831
    Abstract: Thieno[1,5]benzodiazepines having useful CNS activity containing the novel tricyclic ring system: ##STR1## the 10-position being substituted by an amino, preferably a piperazino, group.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: October 30, 1979
    Assignee: Lilly Industries Limited
    Inventors: Jiban K. Chakrabarti, David E. Tupper
  • Patent number: 4150237
    Abstract: Compounds of the structure R(SCH.sub.2 CHOHCH.sub.2 X).sub.n when n=1 to 4 and R is a hydrocarbon, ether, ester, acetal, hydroxy aliphatic, hydroxy aromatic, imide or amide group or halogenated derivatives thereof are prepared by reacting 1-halo-3-mercapto-2-propanol with an aliphatically unsaturated compound using free radical initiators as catalysts. The compounds in which R is an unsaturated or polyunsaturated aliphatic hydrocarbon group of 2 to 24 carbon atoms, or an unsaturated or polyunsaturated cycloaliphatic group, and those in which the aliphatic or cycloaliphatic group is connected through two or more of the polyunsaturated to two or more --S--CH.sub.2 CHOHCHCl groups, and compounds where R is an alkylene or polyalkylene substituted aromatic group and the hydroxy, thioalkyl, alkoxy, aryloxy, ester, carbamidoalkyl and sulfamidoalkyl, halogenated derivatives of said groups are new compounds. The thioether halohydrins can be converted to epoxides.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: April 17, 1979
    Assignee: The Dow Chemical Company
    Inventors: Richard A. Hickner, Corwin J. Bredeweg
  • Patent number: 4145305
    Abstract: Phosphorus-containing activators for percompounds, the activators being tris(acetoxymethyl) phosphine oxide and its precursors including tris(acetoxymethyl) phosphine and tetrakis(acetoxymethyl) phosphonium compounds, together with the use of such activators with percompounds for oxidizing or bleaching such as in bleaching fibers, oils, fats, and waxes, cosmetological treatment of hair and skin, metallic surface passivation, and purification, disinfection and sterilization techniques, the use of such activators providing more rapid action at a given temperature or equal activity at a lower temperature.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: March 20, 1979
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Michel Demarcq, Michel Bakes, Marie-Christine Daude-Lagrave
  • Patent number: 4125599
    Abstract: 5-Gluconamido-2,4,6-triiodo-N-methylisophthalamic acid, 3-acetamido-2,4,6-triiodo-5-trishydroxymethylacetamidobenzoic acid, related compounds and salts and esters thereof are useful as x-ray contrast agents. The corresponding acyl halides are useful as intermediates.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: November 14, 1978
    Assignee: Mallinckrodt, Inc.
    Inventor: Philip E. Wiegert
  • Patent number: 4124619
    Abstract: Preparation of carboxylic acid esters of .gamma.-hydroxy-tiglic-aldehyde from bismonocarboxylic acid esters of but-2-en-1,4-diol via 1,4-diacetoxy-2-formyl butane including intermediates in this synthesis.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: November 7, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Peter Fitton, Harold Moffet
  • Patent number: 4123552
    Abstract: Fungus and mold growth in crops and organic matter are inhibited by the use of bis-carboxylic acid esters and compositions thereof. In a preferred embodiment, crops and animal feedstuffs are preserved during storage by applying a microbiocidal amount of a mono-, di or trioxymethylene, or lower alkylidene bis-alkanoate, or a mixture thereof.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: October 31, 1978
    Assignee: Chevron Research Company
    Inventors: Daniel L. Kensler, Jr., Gustave K. Kohn, David D. Walgenbach
  • Patent number: 4067910
    Abstract: Certain allylmercaptans, some of which are novel, can be used to make novel flavorant and fragrance compositions. A novel method for making the allylmercaptans is disclosed.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: January 10, 1978
    Assignee: Givaudan Corporation
    Inventors: Georg Frater, Trudi Sigg-Grutter, Jost Wild