Oxygen Organic Compound Containing Patents (Class 252/407)
  • Patent number: 5320949
    Abstract: The present invention relates to an aglucone isoflavone enriched vegetable protein fiber wherein a vegetable protein material is extracted to form a slurry of protein, fiber and glucone isoflavones. The pH of the slurry is adjusted to about 6 to 8 and the slurry reacted with a beta glucosidase to convert the glucone isoflavones in said slurry to aglucone isoflavones. The fiber fraction is then recovered from the slurry by centrifugation or similar means to provide an aglucone enriched fiber.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: June 14, 1994
    Assignee: Protein Technologies International, Inc.
    Inventor: Jerome L. Shen
  • Patent number: 5308549
    Abstract: Stabilizing mixtures for a plastic material are disclosed. The mixture is comprised of (a) about one part by weight of a tocopherol compound; and (b) from about 1.4 to about 5.0 parts by weight of a secondary antioxidant.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: May 3, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Stuart F. Laermer, Vincent J. Rizzo
  • Patent number: 5308600
    Abstract: Process for conditioning waste sulfuric acid which is prone to precipitation of tars or resins, which comprises adding emulsifiers, preferably long-chain polyethers, to the waste sulfuric acid.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: May 3, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmold von Plessen, Wolfram Fritsche-Lang, Horst Lorke
  • Patent number: 5302644
    Abstract: Abstract of the Disclosure Stabilizer combination for Ca/Zn-stabilized PVC molding materials, containing (a) Ca salts of saturated, straight-chain C.sub.8 -C.sub.34 fatty acids, (b) Zn salts of saturated, straight-chain or branched C.sub.8 -C.sub.22 fatty acids, (c) epoxidized glycerides of unsaturated, straight-chain C.sub.16 -C.sub.22 fatty acids having an oxirane number of 6 to 8 and iodine number less than 5, and (d) ketofatty acid glycerides of general formula R.sup.1 COO--CH.sub.2 -(R.sup.2 COO)CH-CH.sub.2 -OCR.sub.3, in which the groups R.sup.1 COO--, R.sup.2 COO--, and R.sup.3 COO-- stand for residues of ketofatty acids with 16 to 22 carbon atoms and optionally residues of fatty acids with 12 to 22 carbon atoms, and 60 to 100 wt.% of the groups are derived from the ketofatty acids and 40 to 0 wt.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: April 12, 1994
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Gerhard Stoll, Ernst-Udo Brand, Peter Wedl
  • Patent number: 5296249
    Abstract: Solid ascorbic acid particles of less than 38 microns in size are shown to be effective antioxidants for substrates in which ascorbic acid is insoluble, such as animal and vegetable oils, essential oils, carotenoids, and the like, at weight concentrations of 0.02% and even at 0.005% or below. These particles are preferably prepared by wet milling ascorbic acid in a medium in which it is insoluble, until the size is less than 38 microns, and preferably less. Employment of such particles in a medium in which they are insoluble, as well as employment in the stabilization of fats, oils, and foods, is demonstrated.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 22, 1994
    Assignee: Kalamazoo Holdings Company, Inc.
    Inventor: Paul H. Todd, Jr.
  • Patent number: 5290481
    Abstract: Solid ascorbic acid particles of less than 38 microns in size are shown to be effective antioxidants for substrates in which ascorbic acid is insoluble, such as animal and vegetable oils, essential oils, carotenoids, and the like, at weight concentrations of 0.02% and even at 0.005% or below. These particles are preferably prepared by wet milling ascorbic acid in a medium in which it is insoluble, until the size is less than 38 microns, and preferably less. Employment of such particles in a medium in which they are insoluble, as well as employment in the stabilization of fats, oils, and foods, is demonstrated.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 1, 1994
    Assignee: Kalamazoo Holdings, Inc.
    Inventor: Paul H. Todd, Jr.
  • Patent number: 5279759
    Abstract: Alpha-(p-alkoxybenzylidene) carboxylic acids are used as color stabilizers, processing aids and whiteners for soap.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: January 18, 1994
    Assignee: Henkel Corporation
    Inventors: Louis Rebrovic, Alan C. Kilbarger
  • Patent number: 5252289
    Abstract: Water-soluble 1,2-dithiole-3-thione derivatives are prepared by reacting a polyoxyalkylated starting material with sulfur. These derivatives are useful as corrosion inhibitors, particularly in aqueous environments.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: October 12, 1993
    Assignee: Petrolite Corporation
    Inventor: Bernardus A. Oude Alink
  • Patent number: 5244600
    Abstract: A method for inhibiting or preventing corrosion of metals in contact with an aqueous system containing dissolved oxygen comprising adding to the system an oxygen scavenger having the formula ##STR1## wherein n is 5 or 6, lactone derivatives thereof, or its water soluble salts, in an amount effective to substantially remove the dissolved oxygen.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: September 14, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Dionisio G. Cuisia, Chih M. Hwa, Murrell L. Salutsky
  • Patent number: 5236626
    Abstract: An alkoxybenzotriazole, in combination with mercaptobenzothiazole, tolyltriazole, benzotriazole, a substituted benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are also claimed.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 17, 1993
    Assignee: Calgon Corporation
    Inventors: Daniel P. Vanderpool, Charles Y. Cha
  • Patent number: 5230836
    Abstract: Solid ascorbic acid particles of less than 38 microns in size are shown to be effective antioxidants for substrates in which ascorbic acid is insoluble, such as animal and vegetable oils, essential oils, carotenoids, and the like, at weight concentrations of 0.02% and even at 0.005% or below. These particles are preferably prepared by wet milling ascorbic acid in a medium in which it is insoluble, until the size is less than 38 microns, and preferably less. Employment of such particles in a medium in which they are insoluble, as well as employment in the stabilization of fats, oils, and foods, is demonstrated.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: July 27, 1993
    Assignee: Kalamazoo Holdings, Inc.
    Inventor: Paul H. Todd, Jr.
  • Patent number: 5223161
    Abstract: A high performance lubricating grease effectively lubricates and greases front-wheel drive joints. The lubricating grease has excellent extreme pressure properties and antiwear qualities and is economical, effective, and safe. In one preferred form, the lubricating grease comprises a base oil, a polyurea thickener, an additive package comprising calcium sulfate and calcium acetate.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 29, 1993
    Assignee: Amoco Corporation
    Inventor: John A. Waynick
  • Patent number: 5221461
    Abstract: A method for inhibiting fouling during the elevated temperature processing of hydrocarbon comprising adding to the hydrocarbon a composition comprising a catechol having the structure: ##STR1## wherein R is H or C.sub.1 -C.sub.10 alkyl and, an organic acid.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: June 22, 1993
    Assignee: Betz Laboratories, Inc.
    Inventors: Inge K. Henrici, Dwight K. Reid
  • Patent number: 5217686
    Abstract: An alkoxybenzotriazole, in combination with mercaptobenzothiazole, tolyltriazole, benzotriazole, a substituted benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are also claimed.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: June 8, 1993
    Assignee: Calgon Corporation
    Inventors: Daniel P. Vanderpool, Charles Y. Cha
  • Patent number: 5216049
    Abstract: The present invention relates to an antidegradant system comprised of (A) an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (B) a unique polymerizable synergist. In addition, there is disclosed a stabilized polymer comprising (A) a polymer selected from the group consisting of (1) homopolymers and copolymers of monoolefins; (2) natural rubber; and (3) synthetic rubber derived from a diene monomer; (B) from about 0.05 to about 10 parts by weight based upon 100 parts of polymer of an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (C) from about 0.05 to about 20 parts by weight based upon 100 parts of polymer of a unique polymerizable aromatic sulfide synergist.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: June 1, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Dane K. Parker, Gerald O. Schulz
  • Patent number: 5204012
    Abstract: An esterification product obtained by reacting ethylene oxide/propylene oxide block copolymer with a long-chain monocarboxylic acid, when employed as a supplemental rust inhibitor in lubricating oils for internal combustion engines, has been found to furnish excellent rust inhibition in the engines and to be compatible with other components in the lubricating oils.A lubricating oil composition containing such product may be used to inhibit rust formation in an internal combustion engine.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: April 20, 1993
    Assignee: Ethyl Corporation
    Inventor: John G. Schaffhausen
  • Patent number: 5173213
    Abstract: The corrosion and fouling of metal surfaces in contact with corrosive acid fluids or acid salts in the presence of an aqueous medium is reduced by contacting the surfaces with a composition which comprises (a) an anti-fouling amount of a hydroxyl amine compound of the formulaR.sub.1 R.sub.2 N--OHwherein R.sub.1 and R.sub.2 are independently hydrogen or a hydrocarbyl or inertly substituted hydrocarbyl or both R.sub.1 and R.sub.2 are collectively a divalent hydrocarbyl combined with said nitrogen to form a heterocyclic ring, and (b) a corrosion-inhibiting amount of a reaction product of or a mixture for the purpose of a reaction product of a polyalkylene polyamine and an alkynediol. The polyalkylene polyamine is one that contains from 2-10 amine groups, each separated from another by an alkylene group having from 2-6 carbon atoms. The alkynediol has from 2 to 6 carbon atoms.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: December 22, 1992
    Assignee: Baker Hughes Incorporated
    Inventors: Richard F. Miller, John Petersen
  • Patent number: 5171462
    Abstract: Mixtures of block alkoxy co- or terpolymer hydrocarboxylates and aminopolyazole increase the oxidation and corrosion resistance of lubricants, particularly diesel engine oil.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: December 15, 1992
    Assignee: Texaco Inc.
    Inventors: Thomas F. DeRosa, Rodney L. Sung, Benjamin J. Kaufman, Ronald L. O'Rourke
  • Patent number: 5166375
    Abstract: The antioxidant is safe for human health, has excellent antioxidation activity and is suitably utilized for preventing oxidation of unsaturated fatty acids, esters of unsaturated fatty acids and various kinds of products comprising these acids and esters. The oxidation resistant polyunsaturated oil is made by giving strong antioxidation activity to polyunsaturated oils, such as polyunsaturated fatty acids, esters of polyunsaturated fatty acids and polyunsaturated fats.The antioxidant comprises musizin and tocopherol as the effective components. The oxidation resistant polyunsaturated oil and fat of the invention is characterized in that an antioxidant comprising musizin as the effective component is added to a polyunsaturated oil.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: November 24, 1992
    Assignees: Nippon Oil and Fats Company, Limited, Nagaoka Perfumery Company, Limited
    Inventors: Hiromu Kameoka, Kiyoshi Furukawa, Hiroshi Kihara, Atsuyoshi Nishina
  • Patent number: 5164434
    Abstract: The invention is directed to stabilizer compositions, to polymers containing three stabilizer compositions for use as additives in polymers, and to polymeric products which contain these additives. The stabilizer compositions comprise a compositon of: a) at least two hindered phenols and b) a sulfide. These compositions are admixed with polymers to provide polymeric additives to improve the physical and mechanical properties of polymers matrices.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: November 17, 1992
    Assignee: Rohm and Haas Company
    Inventors: Susan M. Liwak, Nazir A. Memon
  • Patent number: 5156768
    Abstract: R12, which contains chlorine, and hydrogen-contributing lubricants react to form acids such as hydrogen chloride and hydrogen fluoride and simultaneously, R12 is converted to R22. Such reactions are undesirable because the acids which form destroy the metallic components of a refrigeration system and cause the breakdown of the lubricants.The present invention provides a compositions for use in compression refrigeration and air-conditioning which substantially reduce the occurrence of the foregoing problem.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: October 20, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Raymond H. P. Thomas, Ruth H. Chen, Kenneth Harris
  • Patent number: 5155244
    Abstract: A method of solubilizing a first compound in a second medium where the first compound has a limited solubility in the second medium. In particular, the method comprises reacting the first compound with the second medium. By this reaction, a product is formed whereby an active component of the first compound is covalently incorporated into the second medium.The first compound and second medium each contain at least one reactive group which will react with a reactive group of the other. In addition, the first compound comprises at least one antioxidant which will be covalently bonded to and thus effectively solubilized in the second medium by the reaction.The second medium comprises glyceride derivatives, silicones, fluorocarbons and alkoxylates containing reactive groups such as hydroxy, amino, carboxyl, ester, or amides.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: October 13, 1992
    Assignee: Karlshamns AB
    Inventors: George H. Greene, James C. Phillips, Jerry F. Stults, Jan P. E. Tellings
  • Patent number: 5135680
    Abstract: HCFC blowing agents such as 14lb which are stabilized with alpha-pinene oxide, limonene dioxide, or 1,2-hexadecene oxide.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: August 4, 1992
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, John A. Murphy
  • Patent number: 5116521
    Abstract: An aqueous lubrication treatment liquid for a cold plastic working of a metallic material comprises 50 to 400 g/l of a solid lubricant, for example, MoS.sub.2, 1 to 40 g/l of a surfactant, 10 ppm to 5000 ppm, in terms of colloidal titanium compound, water, and optionally, 5 to 150 g/l of a binder and 4 to 160 g/l of a metallic soap. This liquid exhibits a strong bonding to the metallic material and an excellent lubricating property, and prevents rusting of the metallic material.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: May 26, 1992
    Assignees: Nippondenso Co., Ltd., Nihon Parkerizing Co., Ltd.
    Inventors: Hiroyuki Fujii, Tokuo Shirai, Takanori Mizutani, Yoshio Nagae, Koji Hetsugi, Yasuo Tanizawa, Kouji Kaburagi
  • Patent number: 5102933
    Abstract: A composition useful for the thermal stabilization of polyvinylchloride resin comprising an alkyl and aryl-substituted beta-diketone, mannitol and a mixture of magnesium and zinc salts of benzoic and fatty aliphatic acids is disclosed. Also disclosed is polyvinylchloride resin effectively stabilized with the stabilizer composition and a method for effectively stabilizing polyvinylchloride from discoloration at elevated temperatures.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: April 7, 1992
    Assignee: Witco Corporation
    Inventors: Kook-Jin Bae, Stuart D. Brilliant
  • Patent number: 5098472
    Abstract: There is disclosed a preservative composition which is ultra stable in the presence of wood extractives comprising (a) an emulsion of a wood preserative grade creosote; (b) 5-95% water; (c) one or more pre-dispersed micronized pigments; (d) a rheology structuring agent present in an amount of 2.5 weight percent or less; (e) 0.25 to 10 weight percent of a soap which is an alkali metal salt of a wood derived resin acid; (f) 0.1 to 5 weight percent of a surfactant; (g) 0.25 to 2 weight percent of a natural or synthetic pigment modifying resins or anti-settle additive; and (h) 0.25 to 5 weight percent of a lignin sulfonate. The emulsion is produced under conditions of ultra-high sheer. A process for the manufacture of the preservative composition is also disclosed.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: March 24, 1992
    Assignees: Commonwealth Scientific & Industrial Research Organization, Koppers Australia Pty. Limited
    Inventors: John B. Watkins, Harry Greaves, Chen W. Chin
  • Patent number: 5098587
    Abstract: A process is provided for the preparation of an overalkalinized additive for lubricant oils which consists of carbonating a reaction mixture composed of at least one detergent, one derivative of alkaline or alkaline earth metal, at least one nitrogenized and/or oxygenated promoter in a diluent oil and a hydrocarbonated solvent, and wherein the operation is carried out in the presence of at least one boron derivative. Also provided, the additives thus obtained and lubricant compositions containing the additive. These additives are homogeneous and stable, and have very good antiwear properties.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: March 24, 1992
    Assignee: Elf France
    Inventors: Pierre Hoornaert, Claude Rey, Roger Gallo, Catherine Belle
  • Patent number: 5098607
    Abstract: Disclosed is a process for stabilizing a percarboxylic acid characterized in that the percarboxylic acid is mixed with at least one pyridine derivative selected from the group consisting of picoline, ethylpyridine, conyrine, lutidine and N-oxide thereof.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: March 24, 1992
    Assignee: Ube Industries Ltd.
    Inventors: Yukio Inaba, Takafumi Hirakawa, Hiromi Yabuta, Hiroyuki Iida
  • Patent number: 5094814
    Abstract: A combination product containing (a) dihydroxyacetone, (b) hydroquinone, and (c) a volatile amine that is capable of removing oxygen and neutralizing carbon dioxide in industrial waters, particularly boiler waters, including boiler feed waters, internal boiling waters, condensate waters, and return waters. The combination product preferably contains weight ratios of ingredients (a):(b):(c) ranging from 1:0.01:0.1 to about 1:1:100, and may additionally contain a filming amine.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: March 10, 1992
    Assignee: Nalco Chemical Company
    Inventors: Cynthia A. Soderquist, Mei-Jan L. Lin
  • Patent number: 5093032
    Abstract: The present disclosure is directed to a composition and methods for controlling undesirable coke formation and deposition commonly encountered during the high temperature processing of hydrocarbons. Coke formation can be inhibited by adding a sufficient amount of a combination of a boron compound and a dihydroxybenzene.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: March 3, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: Dwight K. Reid, Daniel E. Fields
  • Patent number: 5076814
    Abstract: Liquid mixtures of alkyl phenols composed of from 1 to 8 wt % of 2-tert-butylphenol; from 4 to 12 wt % of 2,6-di-tert-butylphenol; from 4 to 12 wt % of 2-tert-butyl-4-n-butylphenol; from 4 to 12 wt % of 2,4,6-tri-tert-butylphenol; and from 65 to 89 wt % of 2,6-di-tert-butyl-4-n-butylphenol having a balance of properties rendering them ideally suited for use as stabilizers for middle distillate fuels. Such mixtures can be readily produced by an aldehyde-catalytzed alkylation procedure using n-butanol, an appropriate mixture of tertiary butylated phenols, and a strong base (e.g., NaOH, KOH, etc.).
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: December 31, 1991
    Assignee: Ethyl Corporation
    Inventors: J. Vincent Hanlon, Scott A. Culley
  • Patent number: 5071574
    Abstract: A process for reducing the corrosiveness of aerated aqueous solutions, which comprises stripping the oxygen with gas containing hydrogen sulfide after addition of a composition which is both catalytic of the reduction of oxygen by hydrogen sulfide gas and inhibiting of hydrogen sulfide corrosion, such composition comprising certain metallic salts and a water-soluble oxyethylenated amine.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: December 10, 1991
    Assignee: CECA, S.A.
    Inventor: Tang E. Pou
  • Patent number: 5066461
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 when taken independently, each represent the monovalent group of formula: ##STR2## wherein Y is a monovalent group selected from hydroxyl and a group of the formula: ##STR3## wherein n is a whole number integer of 0 to 6; X is selected from the group consisting of hydroxyl and amino when n is from 1 to 6; and when n is 0, X is selected from monovalent groups of the formula:--0--alkylene--NR.sup.3 R.sup.4 (IV)wherein n has the meaning previously ascribed to it; R.sup.3 is selected from the group consisting of hydrogen and R.sup.4 ; and R.sup.4 represents a monovalent group of the formula--Alkylene--OH; (V)provided that R.sup.1 and R.sup.2 are not both a carboxyl group; and R.sup.1 and R.sup.2 when taken together represent the divalent moiety of formula: ##STR4## wherein A represents one of oxygen and ##STR5## wherein n has the meaning previously ascribed to it; and applied to oxidation prone metals to inhibit corrosion.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: November 19, 1991
    Assignee: Union Camp Corporation
    Inventor: Ewa A. Bardasz
  • Patent number: 5061403
    Abstract: A process of preparing an alkaline solution of Labiatae antioxidants essentially free of lipids by agitating a solvent extract of the herb with an aqueous alkaline lower-aliphatic alcoholic or polyol solution thereof, separating the aqueous phase from the insoluble phase, and removing the alcohol from the aqueous phase by distillation to give a stable product with an antioxidant strength of 0.2 or more, having a pH above about 8.4, and having less than 75% water, preferably in the presence of a water-immiscible solvent, and a stable aqueous antioxidant solution of a Labiatae extract, consisting essentially of essentially all of the antioxidant substances present in the herb, which is preferably rosemary, sage, or thyme, with an antioxidant strength of 0.2 or more, and less than about 75% water, preferably having a pH between about 8.4 and about 11.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: October 29, 1991
    Assignee: Kalamazoo Holdings, Inc.
    Inventor: Paul H. Todd, Jr.
  • Patent number: 5059347
    Abstract: Storage-stable, non-sedimenting emulsions comprisinga) 10 to 80% by weight, based on the emulsion, of one or more antioxidants,b) 0.25 to 10% by weight, based on the emulsion, of a surfactant in the form of a fatty acid salt of formula R-COOY, wherein R is straight chain or branched C.sub.3 -C.sub.18 alkyl or straight chain or branched C.sub.3 -C.sub.18 -alkenyl, or is phenyl(C.sub.3 -C.sub.18)alkyl, and Y is an alkali metal, which salt is prepared in situ from the fatty acid,c) 0.25 to 10% by weight, based on the emulsion, of a co-surfactant in the form of an alcohol of the general formula R'--OH, wherein R' is straight chain or branched C.sub.4 -C.sub.19 alkyl or straight chain or branched C.sub.4 -C.sub.19 alkenyl, or is phenyl(C.sub.4 -C.sub.19)alkyl, andd) water to make up 100%.The emulsion are used for stabilizing emulsion-polymerized polymers and copolymers such as ABS.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: October 22, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Mollet, Martin Holer
  • Patent number: 5059336
    Abstract: A grease composition for a high speed anti-friction bearing contains, in a synthetic lubricant base oil, (A) 2 to 30 wt. % of a thickening agent consisting of an urea comopund, (B) 0.2 to 30 wt. % of sorbitan monooleate, (C) 0.2 to 3.0 wt.% of barium sulfonate, and (D) 0.2 to 3.0 wt. % of barium lanolate, as indispensable components, each weight percentage being based on the total weight of the composition.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: October 22, 1991
    Assignees: Nippon Seiko Kabushiki Kaisha, Nippon Oil Co., Ltd.
    Inventors: Michiharu Naka, Hideki Koizumi, Yukari Kondoh, Hirotugu Kinoshita, Mokoto Seikiya, Masaru Mishima
  • Patent number: 5051272
    Abstract: The storage stability of a polymeric article susceptible to hydrolytic degradation, e.g., an absorbable suture, is improved by applying a storage stabilizing amount of a mixture comprising at least one water soluble hygroscopic polyhydroxy compound and/or ester thereof, e.g., glycerol, monoacetin, diacetin, and the like, and at least one compound having the general formula ##STR1## and hydreates thereof to the article as storage stabilizing agent, said agent being retained by the article prior to sealing of the enclosure in which the suture is packaged.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: September 24, 1991
    Assignee: United States Surgical Corporation
    Inventors: Matthew E. Hermes, Ross R. Muth
  • Patent number: 5045233
    Abstract: A method for inhibiting polymerization of a maleimide, which comprises adding to said maleimide, as a polymerization inhibitor, at least one compound selected from the group consisting of thiodipropionic esters, 4-t-butyl-catechol, 2,4-dimethyl-6-t-butyl phenol, 2,5-di-t-butylhydroquinone, 2-t-butyl-hydroquinone, 2,4-bis-(n-octylthio)-6-(4-hydroxy-3,5-di-t-butylanilino)-1,3,5-trizaine, 2,2'-thiobis-(4-methyl-6-t-butylphenol), 4,4'-thiobis-(6-butyl-m-cresol), and triethyleneglycol-bis-[3-(3-t-butyl-5-methyl-4-hydroxyphenyl)propionate].
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: September 3, 1991
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Yuichi Kita, Kentaro Sakamoto, Masao Baba, Tomoaki Tobo
  • Patent number: 5043459
    Abstract: This invention relates to novel saccharoascorbic acid derivatives and their production. The derivatives are represented by the general formula set forth below, for example, an amido, a thioester or carboxylic ester of saccharoascorbic acid, and their salts.The compounds of the present invention are useful for food additives as antioxidants, an intermediate for the production of dichiral compounds and medicines having antithrombotic activity. ##STR1## wherein Z represents ##STR2## --SR.sub.6 or --OR.sub.7, R.sub.4 and R.sub.5 independently represent hydrogen or a hydrocarbon group of 1 to 24 carbon atoms, or R.sub.4 and R.sub.5 may together form --CH.sub.2 --.sub.n in which n is an integer of 4 to 7, R.sub.6 represents a hydrocarbon group of 1 to 24 carbon atoms, R.sub.7 represents hydrogen or a hydrocarbon group of 1 to 24 carbon atoms, R.sub.1, R.sub.2 and R.sub.3 independently represent hydrogen, an acyl group of 1 to 18 carbon atoms or a hydrocarbon group of 1 to 24 carbon atoms, and .about.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: August 27, 1991
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Koichi Matsumura, Yoshihiro Sugihara, Yoshiaki Shimizu, Kouichi Iida, Toshiro Yamashita
  • Patent number: 5041485
    Abstract: Dispersions of stabilizers for plastics in water which contain special reaction products of diols and carboxylic acid anhydrides as auxiliary emulsifiers, and which are characterized by simple preparation, stability and good effectiveness in chemical materials.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: August 20, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Karl-Erwin Piejko, Christian Lindner, Adolf Schmidt, Karl-Heinz Ott
  • Patent number: 5037565
    Abstract: Solutions or substantially stable dispersions of basic alkali metal sulfonates in an inert organic diluent are prepared by intimately contacting an acidic gaseous material such as carbon dioxide with a reaction mixture comprising a sulfonic acid, an alkali metal, an alcohol and a carboxylic acid. The products are useful as additives for lubricants and fuels.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: August 6, 1991
    Assignee: The Lubrizol Corporation
    Inventor: Laurence E. King
  • Patent number: 5034543
    Abstract: This invention relates to a novel ascorbic acid derivative having excellent antioxidant action, particularly eliminating action on superoxides and a process for preparing the same. Furthermore, this invention also relates to a novel antioxidant comprising the afore-mentioned novel ascorbic acid derivative or other known ascorbic acid derivatives.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: July 23, 1991
    Assignee: Nippon Hypox Laboratories Incorporated
    Inventors: Toshio Satoh, Yasunori Niiro, Hisao Kakegawa, Hitoshi Matsumoto
  • Patent number: 5023017
    Abstract: A process of preparing an alkaline solution of Labiatae antioxidants essentially free of lipids by agitating a solvent extract of the herb with an aqueous alkaline lower-aliphatic alcoholic or polyol solution thereof, separating the aqueous phase from the insoluble phase, and removing the alcohol from the aqueous phase by distillation to give a stable product with an antioxidant strength of 0.2 or more, having a pH above about 8.4, and having less than 75% having, preferably in the presence of a water-immiscible solvent, and a stable aqueous antioxidant solution of a Labiatae extract, consisting essentially of essentially all of the antioxidant substances present in the herb, which is preferably rosemary, sage, or thyme, with an antioxidant strength of 0.2 or more, and less than about 75% water, preferably having a pH between about 8.4 and about 11.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: June 11, 1991
    Assignee: Kalamazoo Holdings, Inc.
    Inventor: Paul H. Todd, Jr.
  • Patent number: 5023235
    Abstract: An antioxidant system comprises at least one ascorbyl ester stabilized with at least one complexing agent and at least one thiol. The antioxidant system is usefully employed in fatty body containing compositions such as cosmetic or alimentary compositions.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: June 11, 1991
    Assignee: L'Oreal
    Inventors: Quang L. N'Guyen, Jacqueline Griat, Francois Millecamps
  • Patent number: 5008168
    Abstract: A photosensitive member for electrophotography comprising: an electroconductive substrate and a photosensitive layer disposed thereon comprising an organic photoconductor is provided. the photosensitive layer contains at least, a compound represented by the following formula (I): ##STR1## wherein X.sub.1 denotes a t-butyl or t-amyl group, and X.sub.2 denotes a hydrogen atom, an alkyl group having 1-10 carbon atoms or an alkenyl group having 2-10 carbon atoms; and a compound represented by the following formula (II): ##STR2## wherein X.sub.3 and X.sub.4 respectively denote an alkyl group having 1-10 carbon atoms or an alkenyl group having 2-10 carbon atoms.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: April 16, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaru Nakagawa, Fumio Sumino, Masaaki Hiro, Noboru Kashimura, Shin Nagahara
  • Patent number: 4941995
    Abstract: A preservative composition for a wet wipe product comprising carboxylic acids and grapefruit seed extract.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: July 17, 1990
    Assignee: Scott Paper Company
    Inventor: Marc F. Richards
  • Patent number: 4927553
    Abstract: An additive composition of boronated phenolic antioxidant and anti-haze diol capable of complexing with boric acid as well as organic material protected by the additive composition. A hydrolytically stable additive composition comprising a boronated phenolic antioxidant and a diol member capable of reacting with boric acid formed as a hydrolysis product to form a stable ring structure soluble in a substrate. The additive composition prevents or cures a haze caused by hydrolysis.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: May 22, 1990
    Assignee: Ethyl Corporation
    Inventors: William E. Wright, Bryan T. Davis, Donald S. Matteson, Gordon G. Knapp
  • Patent number: 4915951
    Abstract: Compositions for cryopreservation of phosphoglyceride-containing biological and synthetic membranes are provided in which a lipophilic anchor molecule is modified by the attachment of a preferably carbohydrate moiety placed at a predetermined, variable distance from the hydrophobic portion of the molecule by means of a hydrophilic linker unit. A method for the use of the compositions is also provided.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: April 10, 1990
    Assignee: California Institute of Technology
    Inventors: John D. Baldeschwieler, Raymond P. Goodrich, Jr.
  • Patent number: 4908151
    Abstract: The present invention relates to an oxygen absorbent, and more particularly to an oxygen absorbent applicable to preservation of dry foodstuffs and medical drugs and to the rust prevention of metallic articles. Thus, the invention provides an oxygen absorbent comprising:(A.sub.1) an unsaturated fatty acid and/or a fatty oil containing unsaturated fatty acid,(B.sub.1) a transition metal and/or a transition metal compound, and(C.sub.1) a basic substance,and an oxygen absorbent comprising:(A.sub.2) one member or a mixture of two or more members selected from unsaturated fatty acid compounds including unsaturated fatty acids, esters of unsaturated fatty acid and metallic salts of unsaturated fatty acid,(B.sub.2) a basic substance, and(C.sub.2) an adsorbent.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: March 13, 1990
    Assignee: Mitsubishi Gas Chemical Co., Inc.
    Inventors: Yoshiaki Inoue, Toshio Komatsu
  • Patent number: 4888133
    Abstract: Antioxidant compositions are provided by compounds having the general formula: ##STR1## wherein X is an alkylene radical containing from 1 to 3 carbon atoms and Y is a residue of L-ascorbic acid having the formula: ##STR2## or a residue of D-isoascorbic acid having the formula: ##STR3## and the corresponding salts thereof in an aqueous medium wherein sufficient water is present for inducing a lamellar liquid crystalline phase.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: December 19, 1989
    Assignee: Nestec S.A.
    Inventor: Thommy Carlson