With Preservative Or Stabilizer Patents (Class 568/19)
-
Patent number: 8076519Abstract: The present invention relates to the masking of the odor of organic sulphides and more particularly that of alkyl sulphides or of dialkyl sulphides, especially dimethyl sulphide, and also of oxides thereof, and especially of dimethyl sulphoxide, by addition, to said organic sulphides, of at least one odor-masking agent comprising at least one monoester, at least one di- or triester, at least one alcohol, at least one ketone and, optionally, at least one terpene.Type: GrantFiled: July 27, 2010Date of Patent: December 13, 2011Assignee: Arkema FranceInventor: Paul-Guillaume Schmitt
-
Patent number: 8067643Abstract: Compounds of the formula (I), L, L?, L?, L1, L?1, L?1, L2, L?2, L?2, L3, L?3, L?3, L4, L?4, L?4, L5, L?5, L?5, L6, L?6, L?6, L7, L?7, L?7, L8, L?8 and L?8 independently of one another are hydrogen or an organic substituent; and/or one or more of the pairs L3 and L5, L?3 and L?5 or L?3 and L?5 together denote a single bond, provided that the respective X, X? or X? is not a single bond; and/or L3 and L5, L?3 and L?5 or L?3 and L?5 together denote an organic linking group; and/or one or more of the pairs L1 and L3, L1 and L, L5 and L7, L?1 and L?3, L?1 and L?, L?5 and L?7, L?1 and L?3, L?1 and L?, or L?5 and L?7, together denote an organic linking group; provided that at least one of L, L?, L?, L1, L?1, L?1, L2, L?2, L?2, L3, L?3, L?3, L4, L?4, L?4, L5, L?5, L?5, L6, L?6, L?6, L7, L?7, L?7, L8, L?8 and L?8 is other than hydrogen; X, X? and X? independently of one another are a single bond, CRaRb O, S, NRc or NCORc; Ra, Rb and Rc independently of one another are hydrogen or an organic substituent; and Y is an inoType: GrantFiled: April 4, 2007Date of Patent: November 29, 2011Assignee: BASF SEInventors: Pascal Hayoz, Stephan Ilg
-
Publication number: 20110218363Abstract: The present invention relates to a process for producing an alkenyl mercaptan (2), comprising reacting an alkenyl halide (1) with an alkali hydrosulfide, wherein the reaction is carried out in the presence of a disulfide (3) in an amount of 0.5 part by weight or more based on 100 parts by weight of the total amount of the alkenyl halide (1) and the alkenyl mercaptan (2).Type: ApplicationFiled: November 20, 2009Publication date: September 8, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Toshiaki Suzuki
-
Patent number: 7858289Abstract: A positive resist composition for electron beam, X-ray or EUV includes a compound having a proton acceptor functional group and capable of producing an acid radical upon irradiation with an actinic ray or radiation to reduce or lose the acceptor property or to change the proton acceptor functional group to be acidic, wherein the positive resist composition has a solid content concentration of from 2.5 to 4.5 mass %.Type: GrantFiled: October 27, 2008Date of Patent: December 28, 2010Assignee: FUJIFILM CorporationInventor: Katsuhiro Yamashita
-
Patent number: 6908722Abstract: A novel photoacid generator containing a structure of the following formula (I), wherein R is a monovalent organic group with a fluorine content of 50 wt % or less, a nitro group, a cyano group, or a hydrogen atom, and Z1 and Z2 are individually a fluorine atom or a linear or branched perfluoroalkyl group having 1-10 carbon atoms, is provided. When used in a chemically amplified radiation-sensitive resin composition, the photoacid generator exhibits high transparency, comparatively high combustibility, and no bioaccumulation, and produces an acid exhibiting high acidity, high boiling point, moderately short diffusion length in the resist coating, and low dependency to mask pattern density.Type: GrantFiled: June 28, 2002Date of Patent: June 21, 2005Assignee: JSR CorporationInventors: Satoshi Ebata, Eiji Yoneda, Tomoki Nagai, Tatsuya Toneri, Yong Wang, Haruo Iwasawa, Yukio Nishimura
-
Patent number: 6855476Abstract: A photoacid compound having the following general structure: R—O(CF2)nSO3X wherein n is an integer between about 1 to 4; R is selected from the group consisting of: substituted or unsubstituted C1-C12 linear or branched alkyl or alkenyl, substituted or unsubstituted araalkyl, substituted or unsubstituted aryl, substituted or unsubstituted bicycloalkyl, substituted or unsubstituted tricycloalkyl, hydrogen, alkyl sulfonic acid, substituted or unsubstituted perfluoroalkyl, the general structure F((CF2)pO)m(CF2)q— wherein p is between about 1 to 4, m is between about 0 to 3 and q is between about 1 to 4, and substituted or unsubstituted partially fluorinated alkyl, halofluoroalkyl, perfluoroalkylsulfonic, or glycidyl; and X is selected from the group consisting of: organic cations and covalently bonded organic radicals.Type: GrantFiled: April 5, 2002Date of Patent: February 15, 2005Assignee: Arch Specialty Chemicals, Inc.Inventors: Lawrence Ferreira, Andrew J. Blakeney, Gregory Dominic Spaziano, Ognian Dimov, J. Thomas Kocab, John P. Hatfield
-
Patent number: 6680039Abstract: A method of treating metal-contaminated spent foundry sand, or other industrial waste, by combining the sand with a sulfite to produce insoluble metal sulfur oxide complexes that do not leach from the sand. The treated waste may also be processed to reducing “clumping,” thereby rendering the treated waste appropriate for use in another industrial process.Type: GrantFiled: November 5, 2002Date of Patent: January 20, 2004Inventors: Edward Carroll Hale, III, John E. Wildey
-
Publication number: 20020156326Abstract: A composition based on dimethyl disulphide (DMDS) with a masked smell according to the invention comprises, by weight, at least 95% of DMDS, less than 500 ppm of methyl mercaptan, less than 100 ppm of dimethyl sulphide and up to 1% of at least one odor-masking agent.Type: ApplicationFiled: January 14, 2002Publication date: October 24, 2002Inventor: Georges Fremy
-
Publication number: 20020151753Abstract: A composition based on dimethyl disulphide (DMDS) with a masked smell according to the invention comprises, by weight, at least 95% of DMDS, less than 500 ppm of methyl mercaptan, less than 100 ppm of dimethyl sulphide and up to 1% of at least one odour-masking agent.Type: ApplicationFiled: January 14, 2002Publication date: October 17, 2002Inventor: Georges Fremy
-
Patent number: 5777176Abstract: The present invention relates to novel dimers of 4.4-(disubstituted)cyclohexan-1-ol dimers and delated compounds, pharmaceutical compositions containing these compounds, and their use in treating allergic and inflammatory diseases and for inhibiting the production of Tumor Necrosis Factor (TNF).Type: GrantFiled: June 23, 1997Date of Patent: July 7, 1998Assignee: SmithKline Beecham CorporationInventors: Siegfried B. Christensen, IV, Joseph M. Karpinski
-
Patent number: 5741932Abstract: A process for the preparation of ajoene using cyclodextrin comprising mixing allicin, where appropriate dissolved in water and/or a water-miscible solvent, with .alpha.-cyclodextrin, .beta.-cyclodextrin, .gamma.-cyclodextrin or any desired mixture of these cyclodextrins; and processing to a water-containing composition; drying this composition; and obtaining the resulting ajoene by decomplexation and extraction from the dried composition.Type: GrantFiled: November 13, 1995Date of Patent: April 21, 1998Assignee: Consortium fur elektrochemische Industrie GmbHInventors: Guenter Dressnandt, Heinz Rockinger, Helmut Prigge, Arno Treiber
-
Patent number: 5734085Abstract: A compound having the formula: ##STR1## where A.sup.- is a counterion; R.sup.1, R.sup.2, R.sup.3, and R.sup.4, independently, comprise (a) a non-fluorinated alkyl, cycloalkyl, aryl, or aralkyl group; (b) an onium-containing group; or (c) a group having the formula --(CH.sub.2).sub.n --Y--R.sup.5 in which n is at least two; Y is a spacer arm comprising a --CH.sub.2 --, --O--, --OCH.sub.2 --, --S--, --SO.sub.2 --, or --Z--SO.sub.2 -- group; Z is an --R.sup.6 --O--, --N(R.sup.7)-- group, or --N(H)--; R.sup.6 is a substituted or unsubstituted phenylene group; R.sup.7 is H or a non-fluorinated alkyl, cycloalkyl, aryl, or alkaryl group; and R.sup.5 is a fluorinated group, perfluorinated group, or combination thereof, with the proviso that (i) at least one of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 comprises a group having the formula --(CH.sub.2).sub.n --Y--R.sup.5 ; and (ii) the total number of fluorine atoms in said compound is at least 5.Type: GrantFiled: December 21, 1995Date of Patent: March 31, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: William D. Coggio, Richard M. Flynn, George G. Moore
-
Patent number: 5403961Abstract: A process for preparing a stabilized and deodorized organic polysulfide compound is provided which comprises contacting a crude polysulfide, in the presence of a solvent, optionally further in the presence of a basic compound, with a metal salt of an inorganic acid or a metal salt of an organic acid under conditions sufficient to produce the stabilized and deodorized polysulfide.Type: GrantFiled: November 22, 1993Date of Patent: April 4, 1995Assignee: Phillips Petroleum CompanyInventor: James E. Shaw
-
Patent number: 5352785Abstract: A process for the purification of a perfluorochemical composition comprises continuously mixing the perfluorochemical composition, comprising a liquid mixture of inert perfluorochemicals (e.g., perfluoroalkanes, perfluoroethers, perfluoroaminoethers, or perfluoroalkyl tertiary amines) and isomeric fluorohydrochemicals, with a stabilization composition comprising water-miscible alkanol and an aqueous solution of base (such as potassium hydroxide) made by dissolving the base in an amount of water sufficient to dissolve or disperse the fluoride salt by-products of the subsequent reaction of the base with the fluorohydrochemicals to form fluoroolefins, the amount of the alkanol in the stabilization composition being in stoichiometric excess of the amount needed to completely convert the fluoroolefins to alkoxyvinyl ethers. The process can be utilized to purify the product mixtures resulting from fluorination methods such as direct fluorination or ECF.Type: GrantFiled: March 30, 1993Date of Patent: October 4, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Thomas C. Herzberg, Robert B. Fletcher, Randall F. Henderson
-
Patent number: 5218147Abstract: A process for preparing a stable polysulfide compound, synthesized by reacting a mercaptan with elemental sulfur in the presence of a basic catalyst, having reduced mercaptan sulfur content is provided which comprises contacting the crude polysulfide with an alkylene oxide in the presence of a tetraalkylammonium hydroxide or a basic inorganic catalyst in a solvent.Type: GrantFiled: April 29, 1992Date of Patent: June 8, 1993Assignee: Phillips Petroleum CompanyInventor: James E. Shaw
-
Patent number: 5162585Abstract: A process for preparing a dihydroxy bis-sulfide is disclosed, wherein a thiolate salt, a dihaloalkane, an ether solvent that is partially soluble in water and is substantially nonreactive with either said thiolate salt or said dehaloalkane; and water are contacted under reaction conditions sufficient to synthesize a dihydroxy bis-sulfide; to subsequently recover a dihydroxy bis-sulfide.Type: GrantFiled: April 8, 1991Date of Patent: November 10, 1992Assignee: Phillips Petroleum CompanyInventor: James E. Shaw
-
Patent number: 4964957Abstract: A process for preventing the substantial decomposition of an alkyl sulfide compound at high temperatures comprising combining a non-reactive basic compound with the alkyl sulfide compound prior to subjecting the resultant mixture to the high temperatures.Type: GrantFiled: December 6, 1988Date of Patent: October 23, 1990Assignee: Phillips Petroleum CompanyInventors: James E. Shaw, John S. Roberts
-
Patent number: 4546205Abstract: An amino/phenolic composition effective for enhancing the storage stability of aldehydes, particularly sulfur-containing aliphatic aldehydes of low molecular weight, i.e., those containing from 3 to 10 carbon atoms.Type: GrantFiled: June 16, 1982Date of Patent: October 8, 1985Assignee: Pennwalt CorporationInventor: Stanley R. Sandler
-
Patent number: 4355183Abstract: Inhibition of the formation of color bodies and color-forming materials and other contaminants and/or decolorization of discolored sulfur-containing organic compounds containing divalent sulfur by addition of a small amount of oxalic acid.Type: GrantFiled: August 8, 1979Date of Patent: October 19, 1982Assignee: Phillips Petroleum CompanyInventors: Martin E. Nash, Edward E. Huxley