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44 results about "Alkanesulfonic Acids" patented technology

Sulfonic acid derivatives that are substituted with an aliphatic hydrocarbon group.

Method for Treating a Subterranean Formation

Acidizing methods for subterranean formations formed of predominantly siliceous material as well as acidizing compositions. Some methods include injecting into a predominantly siliceous subterranean formation, an aqueous acidic mixture formed by blending an aqueous liquid, a fluoride source, and an effective amount of an alkane sulfonic acid, preferably methane sulfonic acid, to adjust the pH of the fluid where the alkane sulfonic acid where the alkane group may be an unbranched, a branched or a cyclic alkyl residue. Hydrofluoric acid (HF) may not be added to the fluid in some embodiments as the fluoride source, such as the case for an HF free fluid, and, in some instances, hydrochloric acid is not added to the fluid to adjust pH. Also described are compositions containing an aqueous acidic mixture formed by blending an aqueous liquid, a fluoride source, and an effective amount of an alkane sulfonic acid to adjust pH.
Owner:SCHLUMBERGER TECH CORP

Positive photosensitive composition

A positive photosensitive composition comprising (A1) a compound that generates an aromatic sulfonic acid substituted with at least one fluorine atom and / or a group having at least one fluorine atom upon irradiation of an actinic ray or radiation, (B) a resin that has a monocyclic or polycyclic alicyclic hydrocarbon structure and is decomposed by the action of an acid to increase solubility in an alkali developing solution, and (C) a compound that has at least three hydroxy or substituted hydroxy groups and at least one cyclic structure or (A2) an onium salt of an alkanesulfonic acid in which the alpha-position of the sulfonic acid is not substituted with a fluorine atom and / or an onium salt of a carboxylic acid.
Owner:FUJIFILM CORP +1

Process for electrolytically plating copper

An electrolytic copper plating process comprising two steps is proposed. The process is particularly suited to plating in very confined spaces. The first step comprises a pre-treatment solution comprising an anti-suppressor that comprises a sulfur containing organic compound, preferably incorporating an alkane sulfonate group or groups and / or an alkane sulfonic acid. The second step comprises an electrolytic copper plating solution based on an alkane sulfonic acid.
Owner:MACDERMID ACUMEN INC

Process for production of alkanesulfonic acid

The present invention relates to a process for the production of alkanesulfonic acid. More particularly, the present invention relates to a process for the production of alkanesulfonic acid from alkyl mercaptan effluents generated in chemical industries. The process of the invention comprises the oxidation of the entire alkyl mercaptan generated as an effluent in the chemical industries to serve two concomitant purposes: (1) complete removal of obnoxious odour, and (2) value addition by the production of alkanesulfonic acids selectively in quantitative yields.
Owner:COUNCIL OF SCI & IND RES

Use of fluoroalkane sulfonic acids for stabilising organic plastics containing halogen

Methods of stabilizing halogen-containing organic plastics are described, wherein the methods comprise: (a) providing a fluoroalkanesulfonic acid; and (b) combining the fluoroalkanesulfonic acid and the halogen-containing organic plastic. Stabilizer compositions containing a fluoroalkanesulfonic acid and PVC containing such stabilizers are also described.
Owner:COGNIS DEUT GMBH & CO KG

Acid detergent

Acid detergent compositions, concentrates and use solutions prepared from the concentrates and methods of using the same are provided. The acid detergent compositions are particularly suited for use in removing soils, especially milk soils, from clean-in-place systems, such as those commonly used in the dairy and food processing industries. The detergent compositions comprise an acidic component including an inorganic or alkanesulfonic acid and a blend of surfactants to provide high cleaning efficiency and low foam generation. The acid detergent compositions optionally comprise an antimicrobial agent to impart a sanitization functionality to the detergent.
Owner:DELAVAL HLDG AB

Positive photosensitive composition

A positive photosensitive composition comprising (A1) a compound that generates an aromatic sulfonic acid substituted with at least one fluorine atom and / or a group having at least one fluorine atom upon irradiation of an actinic ray or radiation, (B) a resin that has a monocyclic or polycyclic alicyclic hydrocarbon structure and is decomposed by the action of an acid to increase solubility in an alkali developing solution, and (C) a compound that has at least three hydroxy or substituted hydroxy groups and at least one cyclic structure or (A2) an onium salt of an alkanesulfonic acid in which the α-position of the sulfonic acid is not substituted with a fluorine atom and / or an onium salt of a carboxylic acid.
Owner:FUJIFILM CORP +1

Fluorinated Alkanesulfonic Acid Anhydrides and Processes for Making the Same

The invention provides a process for the preparation of fluorinated alkanesulfonic acid anhydrides by contacting alkanesulfonic acids with phosphorus pentoxide, the phosphorus pentoxide being provided as a dispersion in an inert oil. The invention also provides novel fluorinated alkanesulfonic acid anhydrides including 2-hydrotetrafluoroethanesulfonic acid anhydride.
Owner:EI DU PONT DE NEMOURS & CO

Electrolyte salt and electrolyte for electricity storage device, and electricity storage device

Provided is an electrolyte salt comprising a quaternary ammonium cation indicated by formula (1) and a trimethylsilyl alkanesulfonate anion indicated by formula (2).(In the formula, R1-R4 each independently indicate a C1-4 alkyl group or an alkoxyalkyl group indicated by —(CH2)n—OR. Any two among R1-R4 can mutually bond and form a ring together with a nitrogen atom to which same have bonded. The remaining two can mutually bond and form a spiro ring having a nitrogen atom as the spiro atom therefor. R indicates a methyl group or an ethyl group. n indicates 1 or 2 and m indicates 2 or 3.)
Owner:HISSHINBO HOLDINGS INC

Copper electroplating composition

The present invention relates to a copper electroplating composition comprising a copper alkanesulfonate salt, a free alkanesulfonic acid, and one or more organic compounds selected from the group consisting of suppressors, accelerators, levelers, and mixtures thereof, in which the concentration of free acid is from 0 M to about 0.25 M and the composition is free of halide ions. The present invention also relates to a process of metalizing micro-sized trenches or vias in a substrate using the composition.
Owner:BASF AG

Dry-milling ethanol process

A dry-milling ethanol process comprises the steps of: dry-milling corn kernels to form a corn flour; combining the corn flour with water to form a mash; fermenting the mash thereby producing beer and carbon dioxide; adding an alkanesulfonic acid to the beer in an amount sufficient to adjust the pH to a range of from about 3 to about 5; distilling the beer to produce ethanol and whole stillage; and processing the whole stillage to produce wet distiller's grains with solubles and / or dried distiller's grains with solubles.
Owner:BASF AG

Modified sulfuric acid and uses thereof

An aqueous composition comprising: sulfuric acid; a heterocyclic compound; an alkanesulfonic acid; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
Owner:SIXRING INC

Composition comprising an alkanesulfonic acid for dissolving and/or inhibiting deposition of scale on a surface of a system

A composition for dissolving and / or inhibiting deposition of scale on a surface of a system comprises an acidic component, a wetting agent, and a corrosion inhibitor. The composition may further comprise water. The acidic component comprises an alkanesulfonic acid, e.g. methanesulfonic acid (MSA). The wetting agent comprises a surfactant. The corrosion inhibitor comprises an amphoteric surfactant. The alkanesulfonic acid is present in an amount of at least about 50 weight percent (wt %), the surfactant is present in an amount of from about 0.1 to about 30 wt %, and the amphoteric surfactant is present in an amount of from about 0.025 to about 20 wt %, each based on 100 wt % of the alkanesulfonic acid, the surfactant, and the amphoteric surfactant combined. A method of dissolving and / or inhibiting deposition of scale on the surface of the system comprises the step of contacting the surface of the system with the composition.
Owner:BASF AG

Cathodic electrocoating compositions containing alkane sulfonic acid

An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct which is of an epoxy resin that has been reacted with an amine, and a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of an alkane sulfonic acid as the neutralizing agent for the epoxy amine adduct to provide an electrocoating composition having improved throw power.
Owner:EI DU PONT DE NEMOURS & CO

Modified sulfuric acid and uses thereof

An aqueous composition comprising: sulfuric acid; an alkanesulfonic acid; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
Owner:SIXRING INC

Process for the acid digestion of metal-containing compounds

Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.
Owner:BASF AG
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