65 results about "Carbon group" patented technology

A low-k precursor reactant compound containing silicon and carbon atoms is flowed into a CVD reaction chamber. High-frequency radio-frequency power is applied to form a plasma. Preferably, the reaction chamber is part of a dual-frequency PECVD apparatus, and low-frequency radio-frequency power is applied to the reaction chamber. Reactive components formed in the plasma react to form low-dielectric-constant silicon carbide (SiC) on a substrate surface. A low-k precursor is characterized by one of: a silicon atom and a carbon—carbon triple bond; a silicon atom and a carbon—carbon double bond; a silicon—silicon bond; or a silicon atom and a tertiary carbon group.

The present invention relates to a hydrosilation-curable organopolysiloxane resin composition comprising (A) an organopolysiloxane resin having three or more monovalent unsaturated aliphatic hydrocarbon groups and aromatic hydrocarbon carbon groups, (B) an organosilicon compound having two or more silicon-bonded hydrogen atoms and aromatic hydrocarbon groups, (C) a hydrosilation catalyst, and optionally (D) (d1) a solvent or (d2) a hydrosilation-reactive organosiloxane-based diluent, for optical transmission components, especially for optical transmission components serving as optical communication elements, relates to optical transmission components, represented by optical waveguides, comprisiong a hydrosilation-cured product of the aforementioned organopolysiloxane resin and organosilicon compound, and relates to a process for fabricatiing optical transmission components.

New precursors and processes are provided to generate fluorinated low dielectric constant, .epsilon. films that have higher dimensional stability and more rigid than fluorinated Poly (Para-Xylylenes). The low .epsilon. films are prepared primarily from polymerization of precursors consisting of both benzocyclobutane and unsaturated carbon-carbon groups such as vinyl (C.dbd.C) and ethylenic groups. The low .epsilon. polymers consists primarily of SP.sup.2C--F, hyperconjugated Sp.sup.3C.sub..alpha.--F type or/and Sp.sup.3Si.sub..alpha.--F fluorine. The low .epsilon. (<2.4) films are useful for fabrications of future<0.18 .mu.m ICs. Using low .epsilon. films prepared according to this invention, the integrity of dielectric, Cu and its barrier metals such as Ta can be kept intact; therefore reliability of these ICs can be assured.

PURPOSE: To easily obtain the titled alcohol wherein one of both terminals is quantitatively capped, at a low cost, by polymerizing THF in the presence of an active hydrogen-containing compound using a Lewis acid and a cyclic ether as polymerization initiators. CONSTITUTION: A polyether monoalcohol is produced by polymerizing tetrahydrofuran in the presence of a compound containing one active hydrogen atom in one molecule using a Lewis acid and a 3-4-membered cyclic ether. The active hydrogen-containing compound is a compound having hydroxyl group, carboxyl group or thiol group, e.g. methanol, cyclohexanol, etc., and the ether is selected from epoxides or oxetanes.

The invention relates to a method for increasing the yield of propylene, and mainly solves the problem that the yield of carbon groups of the propylene is low in the prior art. In the invention, the problem is better solved by the technical scheme that three reaction zones are set, the first fast bed reaction zone is used for preparing olefin through methanol transformation, and the riser reaction zone and the second fast bed reaction zone are connected in series and used for transforming ethylene, hydrocarbons above C4 and unreacted methanol or dimethyl ether; and the technical scheme can be used for the industrial production of low-carbon olefin.

A composition of matter comprising at least one nanowire on a graphitic substrate, said at least one nanowire having been grown epitaxially on said substrate, wherein said nanowire comprises at least one group III-V compound or at least one group II-VI compound or comprises at least one non carbon group (IV) element.

An organic electroluminescence device includes an organic layer disposed between at least one pair of electrodes, wherein the organic layer includes at least one fluorescent compound selected from compounds represented by the following general formulae (1) and (2):

The invention relates to a method for preparing a carbon nano tube enhanced titanium-base compound material by in-suit reaction in order to solve the problems of low uniform dispersion and low structural completeness of a carbon nano tube in the conventional method for preparing the carbon nano tube enhanced titanium-base compound material and pollution to the titanium-base material caused by reaction of a carbon group and a titanium base body. The method comprises the following steps of: adding nickel nitrate hexahydrate and TiH2 powder into an ethanol solution, stirring and evaporating to obtain Ni-TiH2 compound powder; paving the Ni-TiH2 compound powder in a quartz boat, putting the quartz boat into deposition equipment, feeding H2, raising temperature, feeding CH4, and after the deposition is finished, stopping feeding the CH4 so as to obtain carbon nano tube/TiH2 compound power; pressing the carbon nano tube/TiH2 compound power into a block body, sintering, and re-pressing to obtain the carbon nano tube enhanced titanium-base compound material. Carbon nano tubes in the compound material are uniform to disperse and cannot be aggregated; the compound material is high in purity and has a complete structure; and reaction between the titanium and the defected carbon nano tube can be avoided.

A lubricant composition comprising a compound represented by the following formula that can maintain a low friction and a high abrasion resistance on the sliding surface over an extended period of time:

wherein D represents a cyclic group; X's each independently represent a single bond, an NR¹ group (in which R¹ represents a hydrogen atom or a C₁-C₃₀ alkyl group), an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group or a divalent linking group comprising these groups in combination; R's each independently represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; m represents an integer of from 2 to 11; and at least one of m groups of R's contains a partly fluorinated hydrocarbon group or a fluorinated carbon group.

This aims to provide a heating-element unit, in which a slender, sheet-shaped heating element (1) composed of mainly a carbon-group material has a plurality of layers laminated through gaps from each other in the thickness direction and in which current suppressing means (2) is formed to control the electric currents to flow through the individual layers laminated. The current suppressing means (2) is formed to have cuts by pushing blades in the thickness direction of the heating element (1), so that the electric current to flow in the longitudinal direction of the heating element (1) can be controlled to a desired value by forming the current suppressing means (2).

The invention pertains to a (per)fluoroelastomer composition comprising:

• at least one (per)fluoroelastomer [fluoroelastomer (A)]; and
• from 0.1 to 30 weight parts, per hundred parts of fluoroelastomer (A), of at least one perfluoropolyether block copolymer [polymer (E)] comprising:
• A) one or more (per)fluoropolyoxyalkylene segment (chain R_t), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and
• B) one or more polyalkylene segment (chain R_a) comprising recurring units of formula:

—(CR₁R₂—CR₃R₄)—

• wherein R₁, R₂, R₃, R₄, equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C₁-C₆ (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

The present invention provides an external preparation for skin, which comprises a multi-branched polysaccharide derivative with multi-branched polysaccharide skeleton consisting of saccharides as constituent units, wherein at least one of hydroxyl (OH) groups in the multi-branched polysaccharide skeleton is substituted by OR (wherein R represents a hydrogen atom, a hydrocarbon having 1 to 30 carbon groups or a hydrocarbon having 1 to 30 carbon groups which has hetero atom), which can give moisture and turgor to the skin, and cosmetics containing the external preparation.

The invention relates to a preparation method of a superconductive, thermally-conductive, ultrahigh-strength graphene composite film, which comprises the following steps: step 1, mixing 10%-80% by mass of nanometer graphene and 20%-90% by mass of liquid or powdery bridging carbon groups in a nitrogen-filling mixer at room temperature for 1-10 hours; step 2, pumping the mixed materials into a heating box by a vacuum pump, heating the materials to 100-500 DEG C for 1-20 hours; step 3, after heating, allowing the mixed materials to fall freely into a material distribution zone, uniformly spreading out the mixed materials by a scraper and a material-distributing roller, feeding the materials into a pre-press roller with a controlled pressure of 0.1-1.0 Mpa, pressing the materials tightly with several groups of press rollers so as to pull out a composite film with a thickness less than 100 microns; step 4, scanning the composite film line by line through a laser beam, an electron beam or an ion beam to allow the temperature of the scanned part of the composite film to be above 3000 DEG C so as to realize carbonization, graphitization, crystal growth, and the perfect combination of the molecular skeleton of nanometer graphene and the molecular skeleton of the bridging carbon groups; step 5, trimming the scanned composite film and rolling up. The invention has simple and compact steps, and can realize production with high efficiency by one continuous apparatus.

The invention relates to an azobenzol photochromism compound containing fluorine terminal group chiral carbon, and a synthesizing method thereof. As a fluorine terminal group chiral carbon group is introduced into an azobenzol compound, the photochromism property of the azobenzol compound undergoes obvious change, UV-Vis absorption spectrum changes greatly before and after inducement, i.e the absorption spectrum changes greatly in the two statuses of cis-form and trans-form, and the storage is stable at the room temperature. Hereby, the application scope of azobenzol-type photochromism materials is enlarged, and the azobenzol-type photochromism materials have wide and potential application prospect in the fields such as the data storage material field, the liquid crystal display material field, the non-linear material field, the optical molecular switch field, the chiral identification field, and the like. The synthesized azobenzol photochromism compound containing chiral carbon has a general formula shown in the drawing.

The invention provides a preparation process of a zeolite-containing film which can raise a zeolite component therein, control the physical properties of the surface, and provide a highly smooth film. The process for preparing a zeolite-containing film has a step of forming a precursor film containing an amorphous silicon oxide portion and a zeolite-like recurring portion by using a material having an amorphous silicon oxide portion and a material having a zeolite-like recurring portion; and a dry gel conversion step of heating the precursor film in the presence of water vapor in order to grow the zeolite-like recurring portion. In this process, the material having an amorphous silicon oxide portion and/or the material having a zeolite-like recurring portion contain(s) a silicon atom bonded to the carbon atom of an organic group containing at least one carbon group.

A composition useful for imparting durable stain repellence and soil release properties to textile substrates, a method for treating textile substrates using such composition, and the textile substrates obtained therefrom. The composition comprises: (A) at least one fluorinated ionisable polyurethane polymer (PUR) being free from perfluoroalkyl chains and comprising at least one fluorinated block comprising a fluoropolyoxyalkene chain, and at least one functional block comprising an hydrocarbon chain (R_HC) having from 2 to 14 carbon atoms, said chain (R_HC) comprising at least one ionisable group, said blocks being linked by urethane moieties of formula (I),

wherein E is a divalent hydrocarbon carbon group; (B) at least one fluorocarbon polymer (F) comprising at least one perfluoroalkyl chain (R_f) linked by one or more ester moiety of formula (II) and/or urethane moiety of formula (III) and/or urea moiety of formula (IV); and (C) at least one crosslinking agent.

The invention discloses a double-carbon-confined iridium nanocluster catalyst and a preparation method and application thereof. The double-carbon-confined iridium nanocluster catalyst is a composite material formed by dispersing iridium nanodots on a carbon matrix, and the carbon matrix is graphene oxide and S-doped mesoporous carbon. Ultra-small nano-sized iridium nanoclusters are prepared through the double confinement effect of two carbon groups, and the aggregation of iridium nano-particles can be effectively prevented. The finally obtained catalyst has large specific surface area, the active sites of the catalyst are increased, the overpotential and Tafel slope of electrolytic water reaction are greatly reduced, the performance of the catalyst is effectively improved, and the catalysthas long service life and good stability. In addition, the preparation method of the catalyst is simple, the raw materials are cheap and readily available, the reserves are abundant, the preparationprocess is simple and easy to operate, and the catalyst is a catalyst with practical value for electrolyzed water.

A film structure for absorbing electromagnetic wave and manufacturing method thereof is provided. The multilayer film structure is composed of a plurality of polymer films and a plurality of permeability films. The polymer films have a multi-film stacking structure and the polymer films are composed of a carbon group compound structure. The permeability films are formed on each surface of the polymer films. Thus, every neighboring permeability films will have magnetic moments in opposite direction, and all the emitted electromagnetic waves will be cancelled by the permeability films, or be reflected in any one of the polymer films until the energies of the electromagnetic waves are consumed, or be absorbed by the carbon group compound structure and be transferred into thermal energy.