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| Number | Title | Issue Date |
| 8030515 | Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Sulfonate salts have the formula: HOCH2CH2CF2CF2SO3−M+ wherein M+ is a Li, Na, K, ammonium or tetramethylammonium ion. Onium salts, oxime sulfonates and sulfonyloxyimides deriv... | 10/04/2011 |
| 7928262 | Sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process Sulfonate salts have the formula: HOCH2CH2CF2CF2SO3−M+ wherein M+ is a Li, Na, K, ammonium or tetramethylammonium ion. Onium salts, oxime sulfonates and sulfonyloxyimides deriv... | 04/19/2011 |
| 7319096 | Thyroid hormone receptor antagonists for cardiac and metabolic disorders II This invention relates to novel compounds which are thyroid receptor ligands, preferably antagonists, and to methods for using such compounds in the treatment of cardiac and metabolic disorders, such as cardiac arrhythmias, thyrotoxicosis, subclinical hyperthyrodism... | 01/15/2008 |
| 7256306 | Arylalkylsulfonic acids and methods for producing same This invention relates new and improved processes for the preparation of arylalkylsulfonic acids derived from aromatic or substituted aromatic molecules and AOS acid (generally a mixture of alkenesulfonic acid and sultones, produced from the sulfonation of alpha ole... | 08/14/2007 |
| 7189798 | Composition containing mixture of dihydroxybutane sulfonates This invention relates to new cyclodextrin derivatives, processes for producing these cyclodextrin derivatives, and inclusion complexes comprised of the new cyclodextrin derivatives and guest molecules, as well as methods of making such materials and related materia... | 03/13/2007 |
| 6500981 | Hydroxy and sulfonic acid substituted alkenes and salts The present invention provides water soluble ethylenically unsaturated monomers selected from the group consisting of formula I and II ##STR1## wherein R1, R2, R3, R4, R5, and R6 are indepe... | 12/31/2002 |
| 6326512 | Method of producing an optically active ଲ-hydroxy sulfonic acid compound by catalytic asymmetric hydrogenation Disclosed is a method of producing an optically active ଲ-hydroxy sulfonic acid compound comprising hydrogenating a ଲ-keto sulfonic acid compound represented by formula 1: ##STR1## where R1 represents an alkyl or a phenyl group, whic... | 12/04/2001 |
| 6316396 | Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on di-, oligo- or polyolethers The invention relates to amphiphilic compounds of the general formula (I) with at least two hydrophilic and at least two hydrophobic groups based on di, oligo or polyolethers. The amphiphilic compounds of this invention are highly surface active and are s... | 11/13/2001 |
| 6160167 | Mercaptans and disulfides This invention relates to novel compositions of matter which either terminate in a sulfhydryl moiety or are disulfides. The compounds also include a terminal sulfonate or phosphonate moiety, and have many uses, such as toxicity reducing agents when admini... | 12/12/2000 |
| 5912385 | Process for the production of pure alkanesulfonic acids This invention relates to a process for the production of an alkanesulfionic acid such as isethionic acid with a high purity in a high yield and at a low cost by oxidation of a (hydroxy)alkylmercaptan with hydrogen peroxide characterized in that a whole a... | 06/15/1999 |
| 5866040 | Complex and emulsified composition A novel complex containing an ampholytic and/or semi-polar surfactant as well as a higher fatty acid, and if necessary, a clay mineral, and an emulsified composition containing this complex.... | 02/02/1999 |
| 5808140 | Process for making mesna, dimesna and derivatives thereof A process for synthesizing disulfides and sulfhydryl compounds which are useful pharmaceuticals. The process includes a two step, single pot process for preparing disulfides from an alkenyl sulfonate salt. The disulfides are useful as toxicity mitigating ... | 09/15/1998 |
| 5516461 | Process and composition A process for preparing alkoxylated alkyl glyceryl ether sulfonates which comprises reacting in the presence of water and the absence of ethanol a mixture of alkoxylated glycidyl ethers having as the major quantity of alkoxylated material ##STR1## ... | 05/14/1996 |
| 5436366 | Process and composition A process for preparing an alkoxylated alkyl glyceryl ether sulfonate which comprises reacting a terminal glycidate (epoxy) of the structure ##STR1## with a sulfite salt, a bisulfite salt or a sulfite/bisulfite salt mixture at a temperature at or below ab... | 07/25/1995 |
| 5344949 | Method for the synthesis of surface-active anion-cation complexes Surface active anion-cation complexes are synthesized where an organic or organosilicon compound with at least one epoxide group is reacted with a quaternary ammonium hydrogen sulfite of the general formula HN+ (R1)3 SO3 | 09/06/1994 |
| 5256815 | Bisulfite adducts of 2,4-dihalobutraldehyde The invention relates to a process for the preparation of cyclopropanecarbaldehydes of formula ##STR1## in which R1 is C1 -C4 alkyl or benzyl, which comprises a) reacting a tetrahydrofuran of formula ##STR2## ... | 10/26/1993 |
| 5053530 | Preparation of isethionic acid with organic acid Synthesis of isethionic acid comprising contacting an alkali metal isethionate and an organic acid.... | 10/01/1991 |
| 5026916 | Process for the preparation of 1-alkylthio-and 1-benzylthio-1-formylcyclopropanes Compounds of formula I ##STR1## wherein R is C1 -C4 alkyl or benzyl, are prepared by reacting a butanal of formula II ##STR2## wherein X and Y are each independently of the other chloro, bromo or iodo, in an inert solv... | 06/25/1991 |
| 5024736 | Process for electroplating utilizing disubstituted ethane sulfonic compounds as electroplating auxiliaries and electroplating auxiliaries containing same A process in which disubstituted ethane sulfonic compounds are employed as electroplating auxiliaries in electroplating. The compounds for use in combination with the claimed process have the general formula: ##STR1## wherein, A represents a pyridini... | 06/18/1991 |
| 4987250 | Synthesis of hydroxy sulfonic acids Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is... | 01/22/1991 |
| 4968836 | Process for the preparation of substituted cyclopropanecarbaldehydes The invention relates to a process for the preparation of cyclopropanecarbaldehydes of formula ##STR1## in which R1 is C1 -C4 alkyl or benzyl, which comprises (a) reacting a tetrahydrofuran of formula ##STR2## ... | 11/06/1990 |
| 4939291 | Process for the preparation of mercaptoethansulfonic acid and sodium salt thereof For the preparation of saline derivatives of mercaptoethansulfonic acid belonging to the class of the salts of alkali metals and of the salts with basic aminoacids, the sodium salt of the acid is obtained with a process comprising the reaction between sod... | 07/03/1990 |
| 4939293 | Sulfonated phenolic material and its use in post primary oil recovery Sulfonated phenolic compounds as well as sulfomethylated phenolic compounds, surfactant systems containing such compound and the use of such surfactant systems in post primary oil recovery are disclosed.... | 07/03/1990 |
| 4895977 | Purification of alkanesulfonic acids using ozone The removal of oxidizable organic impurities which include alkylthiolsulfonate from alkanesulfonic acids by treatment with an ozone containing gas is disclosed. The treated products have improved color and odor and exhibit improved long-term color stabili... | 01/23/1990 |
| 4734516 | Process for the preparation of partially halogenated 1-propanols The reaction of a zinc compound compound of formula III wherein y is 1 or 2 and L is a solvent ligand selected from the group consisting of the N-disubstituted acid amides, N-substituted lactams and organic sulfoxides, with an aldehyde of formula II wherein R ... | 03/29/1988 |
| 4696773 | Process for the preparation of isethionic acid A process for the preparation of isethionic acid involving the reaction of sodium isethionate and hydrogen chloride in an alcoholic solvent is described.... | 09/29/1987 |
| 4499028 | Preparation of isethionic acid A method for the preparation of isethionic acid by treating an alkali metal isethionate with hydrochloric acid to form isethionic acid and a chloride salt. The chloride salt is removed so as to provide at least a 50% by weight aqueous solution of the iset... | 02/12/1985 |
| 4483799 | Hydroxy alkane sulfonic acid sulfoalkyl esters Sulfoalkylating agents free from sultones may be obtained by heating hydroxy alkane sulfonic acids of propane or butane or the corresponding sultones having 5 or 6 ring members with up to four times the molar quantity of water to a temperature in the regi... | 11/20/1984 |
| 4404185 | Slow release formulations of pheromones consisting of aldehydes A slow release formulation of sex pheromones of insects consisting of aldehydes, is herein described. The formulation consists of the bisulphite adduct of the aldehyde and a buffer having a pH value in the range from 2 to 10. The formulations herein described ... | 09/13/1983 |
| 4369144 | Preparation and use of alkali metal isethionates from ethionic acid The invention discloses a process for the preparation of alkali metal isethionates from ethanol-derived ethionic acid and the use of these isethionates to prepare surface active fatty acyl isethionates. A mixture of calcium hydroxide and alkali metal hydr... | 01/18/1983 |
| 4351955 | Alpha-hydroxyisobutyric acid process Acetone cyanohydrin is converted to alpha-hydroxyisobutyric acid by contacting the cyanohydrin with alpha-hydroxymethanesulfonic acid and water at a temperature of about 70°-125° C. The alpha-hydroxymethanesulfonic acid is an equilibrium product of the ... | 09/28/1982 |
| 4318823 | Light colored homogeneous and aqueous alpha olefin sulfonate solutions Light colored homogeneous and aqueous alpha olefin sulfonate solutions wherein about 10 to about 30 wt. % of the sulfonate contained in said alpha olefin sulfonate solutions is 4-hydroxyalkane sulfonate.... | 03/09/1982 |
| 4281177 | 6-Hydroxy-2,6-dimethylheptanal, organoleptic uses thereof and processes for preparing the same Described is the compound 6-hydroxy-2,6-dimethylheptanal and methods for preparing foodstuffs, flavoring compositions for foodstuffs, tobacco compositions, flavoring cmpositions for tobacco, perfume compositions, ingredients for perfume compositions, perf... | 07/28/1981 |
| 4277351 | Method for improving sulfonate surfactants used in enhanced recovery processing in subterranean oil-bearing formations A method is disclosed for reducing formation plugging impurities in a sulfonate surfactant used in enhanced oil recovery operations which comprises contacting said surfactant with an effective amount of an aldehyde having from 1 to about 18 carbon atoms. ... | 07/07/1981 |
| 4146551 | Process for producing magnesium salt of sulfonic acid and sulfuric ester Disclosed is a process for producing the magnesium salt of sulfonic acids and sulfuric esters comprising the step of neutralizing the sulfonic acids and sulfuric esters with an aqueous dispersion containing: (1) at least one neutralizing agent selected fr... | 03/27/1979 |
| 4080315 | Polyesters of N,N-bis(hydroxyalkyl) taurine salts as antistatic agents for synthetic polymers Shaped objects including synthetic polymeric fibers with improved antistatic properties are prepared by incorporation therein about 1 to about 15% of a polyester antistatic agent prepared by reacting an N,N-bis(hydroxyalkyl) taurine salt with an organic p... | 03/21/1978 |
| 4003925 | Purification of sodium isethionate Glycol impurities in aqueous sodium isethionate solutions are readily removed by extraction with an aliphatic alcohol containing three to four carbon atoms. The use of the purified sodium isethionate results in improved processing of detergent bars contai... | 01/18/1977 |
| 3959362 | Ammonium mercaptoalkanesulfonate salts, their preparation, photographic fixing solutions containing same, and method of fixing photographic film therewith Ammonium mercaptoalkanesulfonate salts having the formula: HS--R--SO3 -NH4 + are new salts prepared by a novel process comprising reaction of a thioamide, such as a thioalkanamide or thioarylamide, with a sulton... | 05/25/1976 |
