2643 results about "Carbon number" patented technology

The invention relates to a new base stock material. Specifically the invention relates to a saturated hydrocarbon composition and particularly to a composition based on biological raw materials, to be used as a high-quality base oil or to be used as a component in the production of a base oil having a high viscosity index and good low temperature properties. The composition contains saturated hydrocarbons and has a narrow carbon number range.

An aromatic polycarbonate and an active-hydrogen compound are subjected to the transesterification reaction in the presence of a transesterification catalyst under a reduced pressure condition followed by reaction with a salicylic acid ester derivative expressed by the following chemical formula (1),{wherein X is methyl or ethyl, and Y is a carbonyl group or a divalent functional group expressed by the following formula (2),(where Z is an alkylene group having a carbon number of 1 to 30, an arylene group having a carbon number of 6 to 30 or an aralkylene group having a carbon number of 7 to 30)}.An aromatic polycarbonate having a high molecular weight can be produced by this process.

A catalyst and process for formation of hydrocarbons having carbon numbers of two or greater, the result of both oxidative coupling of methane (“OCM”), and other reforming reactions of OCM end products. An OCM catalyst has a structure represented by formula ABTiO3, wherein A is samarium or tin, B is barium; the reforming catalysts a composition represented by formula XYZ, wherein X is a metal from Group IA, Group IIA or Group VIIIA, or not present, Y a metal from Group VA, Group VIA, Group VIIA or Group VIIIA, Z chosen from oxygen, silica, silicalite and alumina. The inventive catalyst comprises an OCM catalyst and a reforming catalyst blended together; when used in a reactor effects an increased yield of hydrocarbons having a carbon number greater than 2 (in excess of 27%-30%, first pass rate of methane conversion about 50%) than occurs under OCM conditions alone.

A wet-skin adhesive includes a pressure-sensitive adhesive component that includes at least one monoethylenically unsaturated (meth)acrylic acid ester comprising an alkyl group having at least 4 carbons on average and at least one monoethylenically unsaturated reinforcing monomer; and a film-forming component that includes at least one monoethylenically unsaturated (meth)acrylic acid ester comprising an alkyl group having less than 4 carbons on average and at least one hydrophilic acidic monomer, wherein the wet-stick pressure-sensitive adhesive has an initial wet skin adhesion of at least about 0.8 N / dm. Advantageously, the wet-stick adhesive has an initial wet skin adhesion that is at least about 65% of an initial dry skin adhesion.

The invention discloses a catalyst for preparing lower carbon number hydrocarbon olefin through petroleum hydrocarbon decomposition, which comprises (catalyst weight as benchmark) 0-70% clay, 5-99% inorganic oxide compound and 1-50% zeolite, wherein the zeolite is 25-100 wt% MFI structure zeolite and 0-75 wt% Y-type zeolite, characterized by that, the MFI structure zeolite contains phosphor and transient metal M. the catalyst can improve the cracking capability for heavy oil macromolecule and conversion rate of reaction.

An object of the present invention is to provide an antistatic pressure-sensitive adhesive composition which is excellent in antistatic property and antistatic property with time of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive adhesive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.01 to 20% by weight of a reactive surfactant shown by the following general formula (I) as a monomer unit. [in the formula (I), R1, R2, and R3 indicate likewise or differently hydrogen or the methyl group, R4 indicates an alkylene group of 0 to 30 in carbon number (further, 0 in carbon number means that there is no R4), R5 and R6 indicate likewise or differently alkylene groups of 1 to 30 in carbon number, m indicates the number of 0 to 50 (may not be an integer), n indicates the number of 0 to 100 (may not be an integer), m+n indicates the number of 1 to 150 (may not be an integer), and X indicates hydrogen or an anionic hydrophilic group]

A membrane electrode assembly for a polymer electrolyte fuel cell characterized by using, as solid polyelecrolyte of at least one of a membrane and a catalyst binder, a fluorinated sulfonic acid polymer with a monomer unit represented by the following general formula (3): (wherein Rf1 is a bivalent perfluoro-hydrocarbon group having a carbon number of from 4 to 10), wherein said fluorinated sulfonic acid polymer has melt flow rate (MFR) not higher than 100 g / 10 min at 270° C. when a —SO3H group in said polymer is converted to —SO2F.

The invention relates to a separation method for non-cryogenic low-carbon hydrocarbon containing light gases. The method comprise the steps as follows: (1) pre-treated gas at the outlet of a reactor is cooled to the temperature of 10-37 DEG C and sent to a pre-cutting tower; (2) a product at the top of the pre-cutting tower is cooled and sent to an absorption tower, and C2 hydrocarbons in the product at the top of the pre-cutting tower are absorbed by an absorbent consisting of C3, C4, C5 or the mixture of hydrocarbons thereof; and (3) tower kettle products of the pre-cutting tower are sent to a deethanizing column for clearly cutting the C2 and the C3 to obtain C2 distillate at the top of the tower; the tower kettle products are C3 and heavier components. Compared with the prior art, the method has the advantages of lower investment, lower energy consumption, higher recycling rate of materials, simpler operation, less maintenance workload, reliable operation, etc.

A water-base resin has both excellent storage stability and excellent curability at room temperature, the water base resin being obtained by mixing a composite resin (C) and a polysiloxane (D), bringing about a condensation reaction partially between them if necessary, and thereafter dispersing or dissolving the resulting mixture or partially condensed product into a water-base medium, wherein the composite resin (C) comprises a polysiloxane segment (A) and a polymer segment (B), the polysiloxane segment (A) having at least one silicon atom selected from the group consisting of a silicon atom bearing at least one organic group having a total carbon number of at least 3 together with at least one hydrolyzable group and / or at least one hydroxyl group, a silicon atom bearing one hydrolyzable group or one hydroxyl group together with two groups selected from the group consisting of methyl groups and ethyl groups, and a silicon atom bearing at least one triorganosiloxy group together with at least one hydrolyzable group and / or at least one hydroxyl group, and the polymer segment (B) having at least one type of hydrophilic group selected from the group consisting of an anionic group, a cationic group, and a non-ionic group, and wherein the polysiloxane (D) has a hydrolyzable group bonded to a silicon atom and / or a hydroxyl group bonded to a silicon atom, the polysiloxane (D) having a structure represented by the following structural formula (S-I) as an essential structural unit:(wherein R1 in the formula denotes a methyl group or an ethyl group). A water-base curable resin composition comprising the water-base resin as an essential component produces a cured material which possesses excellent resistance stain during outdoor exposure as well as excellent durability such as acid rain resistance and gloss retention during outdoor exposure.

In order to produce a cellulose ester film constructed of a front layer, an intermittent layer and a rear layer, a dope solution is doped on a supporter. In at least one of the front layer and the rear layer, a mass ratio of a cotton linter to a wood pulp (cotton linter / wood pulp) is between 5 / 95 and 0 / 100, and a solvent of the dope contains more than 15 wt. % alcohols and hydrocarbons whose carbon number each is 1-10. Further, a ratio of a solid content density of a solution for forming the front layer and the rear layer to a solid density of a solution for forming the intermittent layer is less than 0.9 wt. %, and a total thickness of the solutions for front and rear layers is more than 5% of the dope ribbon.

The present invention relates to a process for preparing a fluoropolymer containing at least one kind of fluoroolefin, which comprises carrying out polymerization in the presence of a surfactant represented by the formula (1): (wherein R1 and R2 may be the same or different respectively, and represent an alkyl group or an alkenyl group, R3 is a hydrogen atom, an alkyl group or an alkenyl group, the total carbon number of R1 to R3 is 2 to 25, L− is a group represented by —SO3−, —OSO3−, —PO3−, —OPO3− or —COO−, and M+ is a monovalent cation). Thereby, polymerization can be carried out with excellent production efficiency in the presence of a small amount of a surfactant, and a fluoropolymer can be prepared without lowering various physical properties such as water resistance by the surfactant.

A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a crystalline silicate catalyst to produce an effluent having a second composition of at least one olefinic component, the feedstock and the effluent having substantially the same olefin content by weight therein as the feedstock. A process for the cracking of olefins in a hydrocarbon feedstock containing at least one diene and at least one olefin, the process comprising hydrogenating the at least one diene to form at least one olefin in the presence of a transition metal-based hydrogenation catalyst at an inlet temperature of from 40 to 200° C. and an absolute pressure of from 5 to 50 bar with a hydrogen / diene molar ratio of at least around 1, and catalytically cracking the olefins in the presence of a crystalline silicate catalyst at an inlet temperature of from 500 to 600° C. and an olefin partial pressure of from 0.1 to 2 bar to produce at least one olefin having a different olefin distribution with respect to average carbon number than the at least one olefin in the feedstock.

An ink composition for ultraviolet curable ink jets including monomer A represented by a general formula (I):CH2═CR1—COOR2—O—CH═CH—R3  (I)(in the formula, ‘R1’ represents a hydrogen atom or methyl group, ‘R2’ represents a divalent organic residue having a carbon number of 2 to 20, and ‘R3’ represents a hydrogen atom or a monovalent organic residue having a carbon number of 1 to 11), and a photopolymerization initiator containing an acylphosphine oxide-based photopolymerization initiator and a thioxanthone-based photopolymerization initiator, in which the total content of the acylphosphine oxide-based photopolymerization initiator and the thioxanthone-based photopolymerization initiator is 8% by mass to 16% by mass with respect to the total mass of the ink composition.

In order to produce a cellulose ester film constructed of a front layer, an intermittent layer and a rear layer, a dope solution is doped on a supporter. In at least one of the front layer and the rear layer, a mass ratio of a cotton linter to a wood pulp (cotton linter / wood pulp) is between 5 / 95 and 0 / 100, and a solvent of the dope contains more than 15 wt. % alcohols and hydrocarbons whose carbon number each is 1-10. Further, a ratio of a solid content density of a solution for forming the front layer and the rear layer to a solid density of a solution for forming the intermittent layer is less than 0.9 wt. %, and a total thickness of the solutions for front and rear layers is more than 5% of the dope ribbon.

A cobalt catalyst on which the distribution of Fischer-Tropsch synthesis is controllable is composed of metallic cobalt and a carrier by the weight percentage of 5-35% and 65-95% respectively. The catalyst is prepared by an impregnation method which aims at different carrier pore paths and pore diameter distribution as well as changes the interaction between the modulator cobalt and the carrier through adding a complexing agent during impregnation to achieve the even distribution of cobalt particle on the carrier surface, thus controlling the distribution of Fischer-Tropsch syntheses. The invention has the advantages of high reactivity and low selectivity of methane and achieving the selective synthesis of the products in the sections with specified carbon number.

The present invention provides a salicylic acid ester derivative having an impurity content lower than a specific level and expressed by the following formula (1)(in the formula, R1 is methyl group or ethyl group, R2, which may be substituted optionally, is an alkyl group having a carbon number of from 1 to 30, alkoxy group having a carbon number of from 1 to 30, aryl group having a carbon number of from 6 to 30, aryloxy group having a carbon number of from 6 to 30, aralkyl group having a carbon number of from 6 to 30 or aralkyloxy group having a carbon number of from 6 to 30). The salicylic acid ester derivative is effective as a terminal blocking agent or a polymerization. promoting agent for a polycarbonate, and gives a polycarbonate having good color tone and suitable for optical material use.

The present invention provides a hybrid catalyst which is prepared by mixing a methanol synthesis catalyst with SAPO-type zeolite as a methanol conversion catalyst, and a process for the preparation of hydrocarbons from carbon dioxide by using the hybrid catalyst. The hybrid catalyst of the invention can be used for preparing hydrocarbons having a carbon number of more than 2 from carbon dioxide under a relatively on the hydrocarbons produced. Therefore, the hybrid catalyst may be used for preparing various high-valued hydrocarbons from an ubiquitous carbon source of carbon dioxide.

The present invention relates to the selective separation of methane (“CH4”) from higher carbon number hydrocarbons (“HHC”s) in streams containing both methane and higher carbon number hydrocarbons (e.g. ethylene, ethane, propylene, propane, etc.) utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably, the stream to be separated is fed to the present process in a substantially gaseous phase. In preferred embodiments, the current invention is utilized in a process to separate methane from higher carbon number hydrocarbons in natural gas streams.

A composition for manufacturing an electrode of a solar cell, comprising metal nanoparticles dispersed in a dispersive medium, wherein the metal nanoparticles contain silver nanoparticles of 75 weight % or more, the metal nanoparticles are chemically modified by a protective agent having a main chain of organic molecule comprising a carbon backbone of carbon number of 1 to 3, and the metal nanoparticles contains 70% or more in number-average of metal nanoparticles having a primary grain size within a range of 10 to 50 nm.

A catalyst for preparing lower carbon number hydrocarbons and parallel aromatic hydrocarbons through catalytic hydrocarbon pyrolysis, comprises molecular sieve with bore diameter of 0.45-0.7 nm, nonshaped-set oxide compound and at least two modified elements from phosphor, alkaline-earth metal, lithium and tombarthite. Its preparing process comprises, (1) preparing catalyst base material from crystallization shaped molecular sieve and silicon or aluminum containing amorphous substance or aperture structure modifier through mixing modeling, (2) preparing type-H catalyst base material through sintering, (3) soaking or exchanging catalyst base material by one or more modifying solution through one-step or multistep mode, and drying and sintering for preparation of catalyst.

The invention relates to a synthetic route of a hydrocarbon fuel with high density and high volumetric calorific value by using a lignocelluloses-based platform chemical compound as a raw material and completely independent of fossil energy. A liquid fuel obtained by the method can be used in various aircrafts or used as an additive to raise combustion performance of aviation fuel. The method is divided into two parts: 1) under the promotion action of an acid / base catalyst, cyclopentanone (furfural selective hydrogenation product) is subjected to an aldol self-condensation reaction to synthesize unsaturated organic compounds with C10 and C15 polycyclic structures; and 2) a metal loaded A / X catalyst is used to carry out a one-step hydrodeoxygenation and hydrogenation reaction on products generated from the step 1 under low-temperature solvent-free conditions, so as to obtain polycyclic hydrocarbon fuel with carbon number being 10 and 15. The liquid fuel has high density (C10: 0.92g / cm<3>; C15: 1.12g / cm<3>), can be used to effectively raise carrying energy of an aircraft and reduce fuel consumption rate, and meets requirements of high navigational speed, large load and long range.

The invention discloses an egg- shell metallic catalyst and the method for preparation and the application. The catalyst is an egg- shell supported metallic catalyst with a carrier of hollow silica dioxide, which is a hollow material of certain wall and bore diameter, and comprises a noble metal of 0.1%- 5.0% and / or a transient metal of 5.0%- 40.0%, a non- noble metallic catalyst promoter of 0- 0.5% and a hollow silica dioxide carrier of 60.0%- 99.0%, with the weight ratio of catalyst as a datum level. The egg- shell metallic catalyst can prepare with immersion method or in- situ supporting method. The catalyst has good metal dispersibility, and the metal particle diameter is minor, dispersing on the external surface, inner surface and in the pore passage. And the egg- shell metallic catalyst can catalyze CO and CO2 to prepare lower carbon number hydrocarbons and alcohol, and it also can catalyze olefin and alkyne selectively.

Provided are a binder composition which has high electrolyte resistance characteristics, and a secondary battery which uses a positive electrode using the binder composition for high-temperature cycle characteristics. [Solution] The binder composition for the secondary battery positive electrode according to the present invention contains a polymerized unit which contains a nitrile group; a polymerized unit of (meth) acrylic acid ester; a polymerized unit which contains a hydrophilic group; and a polymerized unit of linear alkylene having a carbon number of at least four. In a mixed solvent in which a volume ratio EC:DEC between ethylene carbonate (EC) and diethyl carbonate (DEC) at 20° C. is 1:2, a degree of swelling with respect to an electrolyte in which LiPF6 is dissolved to have a concentration of 1.0 mol / L is between 100% and 500%.

A process for preparing lower carbon number hydrocarbons through linkage petroleum hydrocarbon catalysis decomposition, wherein petroleum hydrocarbon and organic oxygen compounds are used as raw material, and fluid bed reactor is utilized under the action of solid acid catalyst and high temperature water vapor through linkage petroleum hydrocarbon catalysis decomposition to prepare lower carbon number hydrocarbons. The reaction condition is, temperature 500-720 deg.C, the weight ratio of the catalyst and the petroleum hydrocarbons is 5-40:1, the weight ratio of the organic oxygen compounds and the petroleum hydrocarbons is 0-2:1, the weight ratio of the water vapor and the petroleum hydrocarbons is 0-1:1.

This invention is a composition that includes a transesterified fatty acid ester resulting from the reaction of a fatty acid ester, in the presence of an acid, with a hydroxyl-containing compound. The fatty acid esters of the invention are selected from those with a carbon number of eight to twenty. The hydroxyl-containing compound is an alcohol having a carbon number between one and eighteen. The resulting composition is useful as a lubricant, as a heat transfer agent, as a rheological modifier and as a corrosion / moisture inhibitor, among other uses.

The object of the invention to provide a recording ink with excellent discharge stability and storage stability, which rapidly penetrates into a recording medium and forms a coating, and which will never generate smearing upon high-speed printing or double-sided printing, and which excels in marker resistance, and which enables high quality image recording with less bleeding, and the ink cartridge, the ink record, the inkjet recording apparatus, and the inkjet recording method using the recording ink. The recording ink containing at least water, a colorant, a resin fine-particle, a water-soluble organic solvent and a penetrant, in which the penetrant is a diol compound whose carbon number is 7 to 11 and the resin fine-particle is a silicone modified acrylic resin not containing a hydrolyzable silyl group.

Disclosed is an electrophoretic particle comprising a polymer component on a surface thereof which polymer component is a copolymer obtained from materials comprising at least a monomer component represented by a following general formula (I):wherein R represents a hydrogen atom or a methyl group, and a monomer component represented by a following general formula (II):wherein R1 represents a hydrogen atom or a methyl group, R1′ represents a hydrogen atom or an alkyl group whose carbon number is 1 to 4, n represents a natural number, and x represents an integer of 1 to 3.

The present invention provides fully renewable engine fuels derived completely from biomass sources. The fully renewable engine fuel is comprised of one or more low carbon number esters, one or more pentosan-derivable furans, one or more aromatic hydrocarbon, one or more C4-C10 straight chain alkanes derivable from polysaccharides, and one or more bio-oils. In addition, the fuel may contain triethanolamine. Such a lower octane renewable fuel may be utilized, for example, in automobile fuel, 100 LL aviation fuel applications, and turbine engine applications. These ethanol-based, fully renewable fuels may be formulated to have a wide range of octane values and energy, and may effectively be used to replace 100LL aviation fuel (known as AvGas), as well as high octane, rocket, diesel, and turbine engine fuels.

Provided is a UV curable type ink-jet ink composition containing a monomer A which is expressed by the following general formula (I):CH2═CR1—COOR2—O—CH═CH—R3  (I)(in the formula, R1 is a hydrogen atom or methyl radical, R2 is a bivalent organic residue radical having a carbon number in a range of 2 to 20, and R3 is a hydrogen atom or a univalent organic residue radical having a carbon number in a range of 1 to 11), a compound B containing five or more (meth)acryloyl radicals per molecule, and a monofunctional (meth)acrylate C having an aromatic ring skeleton, wherein the monofunctional (meth)acrylate C which is in a range of 5 to 35 wt % with respect to the total weight of the ink composition is contained.