406 results about "Ethyl hydroperoxide" patented technology

A method of chemically modifying carbon nanotubes having a diameter less than one micron comprising: contacting the nanotubes with a peroxygen compound selected from the group consisting of organic peroxyacids, inorganic peroxoacids and organic hydroperoxides, or a salt thereof, under oxidation conditions and thereby producing modified carbon nanotubes. Oxidation of the nanotubes increases the degree of dispersion of aggregates of nanotubes and aids in the disassembling of such aggregates. The dispersed nanotubes are used to prepare rigid structures and can be used in electrodes and capacitors.

The preparation of antioxidant for lubricant oil includes the condensation reaction between the mixture liquid containing shielding phenol, aldehyde and CS2 and added dialkyl amine at 40-120 deg.c and product separation and collection. The prepared antioxidant has the integrated structure of both free radical terminator and peroxide decomposing agent and has the capacity of trapping free radical and decomposing hydrogen peroxide to protect the oxidation safety of oil product. Containing S element in its structure makes it possess certain antiwear effect. The product of the present invention is liquid, easy to dissolve and compatible with other functional additives, and may be used in industrial lubricant oil and internal combustion engine oil.

This invention is a method of purifying fuels containing organosulfur impurities. The fuel is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product, followed by extraction of the sulfone product by solid-liquid or liquid-liquid extraction. The fuel is then contacted with a decomposition catalyst to remove the residual organic hydroperoxide from the fuel.

The invention relates to a process for preparing hydroperoxides from their corresponding hydrocarbons which comprises oxidizing said hydrocarbons, particularly ethylbenzene, with an oxygen containing gas in the presence of a catalyst comprising a cyclic imide compound and a compound selected from the group consisting of an alkali metal compound or mixture thereof.

The present invention provides IMS analyzers and methods for detecting, identifying, and characterizing (e.g., measuring the concentration of) peroxides in samples. Methods and systems of the present invention utilize sample inlet conditions and dopant strategies providing an enhancement in selectivity and sensitivity for the detection of peroxide compounds relative to conventional IMS analyzers. Dopants of the present invention include, but are not limited to, substituted aryl compounds or substituted cyclic dienes; wherein the substituted aryl compound or the substituted cyclic diene has at least one substituent selected from the group consisting of a hydroxyl group, a carbonyl group, an aldehyde group, an ester group, a carboxylic acid group and a carbonate ester group. The present IMS analyzers and methods are versatile and enable selective detection of a broad class of peroxides and derivatives thereof, including hydrogen peroxide, hydroperoxides, organic peroxides and derivatives thereof.

A dental composition compatible with acidic dental primers / adhesives, the dental composition comprising (A) 5% (w / w) to 90% (w / w) of at least one polymerizable monomer having at least one ethylenically unsaturated vinyl, acrylate, or methacrylate group; (B) 0.01% (w / w) to 10% (w / w) of at least one compound of structurewhere each of R1, R2, and R3 may be the same or different and is independently selected from H, alkyl, alkoxyl, aryl, acyl, allyl, pyridyl, —OH, alkenyl, aralkyl, cycloalkyl, and heterocyclic structure containing O, S, or N; (C) 0.01% (w / w) to 10% (w / w) of at least one hydroperoxide compound with at least one hydroperoxide groups attached to a tertiary carbon; (D) 5% (w / w) to 95% (w / w) of at least one finely divided filler; (E) 0% (w / w) to 25% (w / w) of one or more components selected from a solvent, a photoinitiator, a stabilizer, and / or an antimicrobial agent. One embodiment of the invention is a dental cementation or core buildup kit that has enhanced compatibility between the acidic primer / adhesive and the cement or core buildup material, and therefore enhanced adhesion to a tooth. The kit includes (I) an acidic primer / adhesive composition having a pH less than 4.5; and (II) a cement or core buildup material having the above described composition comprising components (A)-(E). Another embodiment of the invention is a method for adhering a prosthetic device to a tooth to restore the function and / or appearance of a diseased tooth. Another embodiment of the invention is a method of providing a temporary cement, crown and / or bridge, inlay, onlay, endodontic sealer, and / or an endodontic filling material, using the inventive composition.

This invention is a method of purifying fuel streams containing organosulfur impurities. The fuel stream is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product. The alcohol product of the organic hydroperoxide is then removed from the oxidized fuel stream, followed by extraction of the sulfone product by solid-liquid extraction using solid adsorbents. The alcohol removal step is found to improve the adsorption capacity of the solid adsorbents.

Integrated processes of preparing industrial chemicals starting from seed oil feedstock compositions containing one or more unsaturated fatty acids or unsaturated fatty acid esters, which are essentially free of metathesis catalyst poisons, particularly hydroperoxides; metathesis of the feedstock composition with a lower olefin, such as ethylene, to form a reduced chain olefin, preferably, a reduced chain α-olefin, and a reduced chain unsaturated acid or ester, preferably, a reduced chain α,ω-unsaturated acid or ester. The reduced chain unsaturated acid or ester may be (trans)esterified to form a polyester polyolefin, which may be epoxidized to form a polyester polyepoxide. The reduced chain unsaturated acid or ester may be hydroformylated with reduction to produce an α,ω-hydroxy acid or α,ω-hydroxy ester, which may be (trans)esterified with a polyol to form an α,ωpolyester polyol. Alternatively, the reduced chain unsaturated acid or ester may be hydroformylated with reductive amination to produce an α,ω-amino acid or α,ω-amino ester, which may be (trans)esterified to form an α,ω-polyester polyamine.

A process for producing a phenol product generally comprises a first step comprising reacting in a first reactor a feed stream comprising cumene hydroperoxide and water with an acid catalyst to produce an effluent comprising the phenol product, acetone, and at least 1% by weight residual cumene hydroperoxide, and a second step comprising passing the effluent into a second reactor and decomposing the residual cumene hydroperoxide, wherein during said process the ratio of phenol to acetone is maintained at a molar ratio of greater than 1:1, and wherein the water in each of the first and second steps is present in an amount more than 0 and less than or equal to 5 weight percent based on the total weight of the feed stream or effluent, and wherein the process is continuous.