2778 results about "Cyclohexanes" patented technology

The present invention provides, in one aspect, a physiological cooling composition comprising at least one cyclohexane carboxamide, at least one acyclic carboxamide, and at least one stereoisomer of menthyl lactate. In another aspect, disclosed is a method for producing such composition. In still another aspect, disclosed are various consumer products comprising a physiological cooling composition comprising at least one cyclohexane carboxamide, at least one acyclic carboxamide, and at least one stereoisomer of menthyl lactate.

Compositions of matter including articles derived from (a) from 5 to 99.99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate and (2) contains a at least one residue derived from polyethylene terephthalate selected from the group consisting of antimony, germanium, diethylene glycol groups, isophthalic acid groups, cis isomer of cyclohexane dimethanol, trans isomer of cyclohexane dimethanol, sodium benzoate, alkali salts, napthalane dicarboxylic acids, 1,3-propane diols, cobalt, cobalt-containing compounds, and combinations thereof, and (b) from 0.01 to 95 wt. % of a member selected from the group consisting of (1) fillers, (2) a carboxy reactive component, (3) polyethyelene terephthalate, (4) a component including a polycarbonate and an impact modifier. The articles may be derived from various conversion processes, e.g., injection molding processes, extrusion processes, thermoforming processes, melt-blown process.

A polyamide characterized in that the polyamide is obtained by thermal polycondensation of (a) dicarboxylic acid components comprising 10 to 80% by mole in total carboxylic acid components of 1,4-cyclohexanedicarboxylic acid having a trans/cis molar ratio of 50/50 to 97/3 and (b) an aliphatic diamine component is disclosed. The alicyclic polyamide having 1,4-cyclohexanedicarboxylic acid in a backbone thereof as a dicarboxylic acid unit, which is suitable as materials for various uses such as automotive parts, electric/electronics parts, industrial materials, engineering materials and daily household goods, and superior in heat resistance, low water absorption, light resistance, moldability and light weight, as well as superior in toughness, chemical resistance and appearance, and molded articles thereof.

A liquid crystal compound represented by formula (1), a liquid crystal composition comprising the compound, and a liquid crystal display device comprising the composition:

For example, R¹ is alkyl having 1 to 20; ring A¹, ring A², ring A³, ring A⁴, ring A⁵, and ring A⁶ are 1,4-cyclohexylene or 1,4-phenylene; Z¹, Z², Z³, Z⁴, Z⁵, and Z⁶ is a single bond; X¹ is hydrogen or halogen; l, m, n, o, p, and q are 0 or 1, and l+m+n+o+p+q is 3.

The invention relates to a benzene hydrogenation catalyst as well as a preparation method and application of the benzene hydrogenation catalyst. The catalyst consists of an active component Ru and adjuvants, wherein the active component Ru is loaded on the catalyst by a carrier; the adjuvants are one or two of La, Ce, Fe, Zn, Cu and B, and the carrier is a mesoporous molecular sieve MCM-41 modified by one or two of ZrO2, ZnO and CuO. The invention also provides a method for preparing cyclohexene and cyclohexane by benzene hydrogenation catalyzed by the catalyst. The catalyst provided by the invention can be prepared by a dipping sedimentation method or a chemical reduction method and has a higher catalytic activity and cyclohexene selectivity.

The present invention relates to aqueous polyurethane dispersions that are free from N-methylpyrrolidone and other solvents and wherein the polyurethanes are the reaction products of A) a mixture of 25% to 90% by weight of 1-isocyanate-3,3,5,-trimethyl-5-isocyanatomethylcyclohexane (IPDI) and 10% to 75% by weight of 4,4′-diisocyanatodicyclohexylmethane, wherein the preceding percentages are based on the weight of component A), with B) one or more polyols having average molarcular weights (Mn) of 500 to 6000, C) one or more compounds which have at least one OH— or NH-functional group and contain a carboxyl and/or carboxylate group, wherein at least 50 mol % of the acid groups, based on the total moles of acid incorporated into the polyurethane, are incorporated by dimethylolpropionic acid, D) one or more polyols and/or polyamines having average molecular weights (Mn) of below 500, and E) optionally one or more monoalcohols and/or monoamines. The present invention also relates to a process for preparing the aqueous polyurethane dispersions and to the use of the polyurethane dispersions for preparing coatings or adhesives.

The invention discloses a colorless and transparent polyimide resin material. 1,2,3,4-cyclohexanetetracarboxylic dianhydride is chosen as dianhydride monomer or comonomer to carry out polycondensation reaction with primary diamine, so that the polyimide resin material is prepared. Because the 1,2,3,4-cyclohexanetetracarboxylic dianhydride comonomer has a distorted molecular structure, a large free volume exists between polymer molecular chains, and thereby the formation of charge transfer complex (CTC) in and between polyimide molecules is inhibited; and meanwhile, because of the introductionof a lipid structure, the electron-stimulated transition mode in the polyimide molecular chains is changed, the absorption of the aromatic polyimide in the visible light region is remarkably weakened, and thereby the transparency of the polymer is greatly increased. The ultraviolet light transmission cutoff wavelength of a produced polyimide film is 280nm to 380nm, the light transmissivity at 450nm is 86 to 94 percent, moreover, the glass-transition temperature is 250 DEG C to 400 DEG C, and the polyimide resin material has a good application prospect in the fields of flexible substrate materials for solar cells, flexible transparent conducting film substrate materials, liquid crystal display materials and the like.

The present invention relates to a new process for preparing adipic acid by air oxidating cyclohexane, cyclohexanol, cyclohexanone and cyclohexene or mixture of cyclohexanol and cyclohexanone under the catalysis of metal porphyrin. Under the condition of 1-20 atm air and reaction temp. is 50-200 deg.C it can select and use mu-oxidized metal porphyrin and monometal porphyrin or their fixed carrier material as catalyst independently, also can select and use metal porphyrin or their fixed carrier material as main catalyst, and use transition metal salt or oxide as co-catalyst. The metal porphyrin like biological-enzyme can high-effectively and high-selectivity catalyze air under the biologicae concentration to directly oxidate the cyclohexane into adipic acid. Said invented dose of metal porphyrin is less, and its catalytic effect is good, it can make homogeneous catalysis, also can make heterogeneous catalysis after the carrier is fixed.

The invention belongs to the field of environmental protection and catalyst, disclosing a bifunctional catalyst and a preparation method and an application thereof. The catalyst is prepared in a manner that substance containing rare earth metal element cerium, substance containing alkali metal element potassium and substance containing transition metal elements are loaded on a carrier under the action of adhesive to be baked; wherein transition metal elements are 1-3 elements of Cu, Mn, Fe, V, Co. The catalyst has low cost and high catalytic activity, does not cause secondary pollution, is suitable for preparation of chlorine by oxidation of hydrogen chloride to realize the recycling of chlorine resource, and is also suitable for deep oxidation combustion of organic impurities such as cyclohexane, benzene, toluene and the like in industrial waste gas.

An alignment film (100) according to the present invention includes: a first alignment layer (102) containing a first polyimide (p1); and a second alignment layer (104) containing a polymerization product (po) resulting from polymerization of a polyfunctional monomer and a second polyimide (p2). The polyfunctional monomer is represented by general formula (1) P1-A1-(Z1-A2)n-P2 (in general formula (1), P1 and P2 each independently of the other are an acrylate, methacrylate, acrylamide, methacrylamide, vinyl, vinyloxy, or epoxy group; A1 and A2 each independently of the other represent a 1,4-phenylene, 1,4-cyclohexane, 2,5-thiophene, or naphthalene-2,6-diyl group; Z1 is a —COO— group, a —OCO— group, a —O— group, a —CONH— group or a single bond, where n is 0, 1, or 2).

The invention discloses a nanometer material with controllable particle sizes and silicon dioxide hollow spheres and a method for preparing nanometer material. TEOS (tetraethyl orthosilicate) is used as an organic silicon source, CTAB (cetyl trimethyl ammonium bromide) is used as a structure directing agent, water, ethyl alcohol and cyclohexane are used as solvents, and PVP (polyvinyl pyrrolidone) is used as a stabilizer. The method includes carrying out heat reaction by the aid of the solvents to form precursors of the SiO2 hollow spheres; calcining the precursors and removing organic matters so as to obtain the SiO2 hollow spheres. The nanometer material and the method have the advantages that the silicon dioxide hollow spheres prepared by the aid of the method are excellent in dispersibility and have the adjustable particle sizes (of 220-430 nm), large pore diameters (of 10-12 nm) and uniform shell thicknesses, and cavities are large and can be used for storing large quantities of guest molecules; the nanometer material is high in chemical stability and packaging capacity and can be widely applied to the fields of enzymatic catalysis, substance adsorptive separation and the like; the method includes simple synthesis processes, is clean and is free of pollution and low in cost, and preparation procedures are good in repeatability.

Methods are provided for using a compound to treat, for example, endothelial dysfunction including vascular abnormalities. More specifically, methods are described for using an oligosaccharide compound or glycomimetic compound wherein a cyclohexane derivative is incorporated in either.

Production of cationic micro-sphere with cross-linking swelling function is carried out by taking persulfate and sulfite or persulfate and azo-diisobutyl nitrile binary composite or persulfate, sulfite and 2,2'-azo-(2-(2-imidazoline-2-radical)propane)dihydrochloride(VA-044)ternary composite as initiating agent, adding into dispersant and cross-linking agent, initiating DMC monomer and AM monomer in mixed medium of cyclohexane-water or industrial white oil-water or 120#solvent oil-water and reverse suspension polymerizing to obtain the final product. The grain size is 1-50 mu m, it has controllable swelling speed ratio and can be used for third oil-extraction plugging materials.

A nonaqueous solvent for an electricity storage device according to the present invention comprises fluorine-containing cyclic saturated hydrocarbon having a structure which is represented by general formula (1) below and in which one or two substituents R are introduced into a cyclohexane ring (in general formula (1), R is represented by C_nX_2n+1, n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are F or H).

A cooling topical cosmetic or dermatological preparation which comprises (1R,2S,5R)-2-isopropyl-5-methyl-N-(2-(pyridin-2-yl)ethyl)cyclohexane carboxamide and/or (1R,2S,5R)-N-(4-cyanomethyl-phenyl)-2-isopropyl-5-methylcyclohexane carboxamide, in combination with menthoxypropanediol.

The invention discloses a method for preparing a metal ion adsorbent, and relates to a method for preparing resin with adsorption function on metal ions. The method uses beta-cyclodextrine as a raw material, and uses acrylic acid and acrylamide as copolymerization reactants. The method comprises the following steps of: adding alkali solution of the beta-cyclodextrine and cyclohexane into a reactor, heating the reactor in a water bath and introducing nitrogen into the reactor, and stirring the mixture; and then dropwise adding uniformly stirred solution of initiator, cross linker, acrylic acid and acrylamide into the reactor to perform polymerization reaction, and obtaining the resin with performance of adsorbing the metal ions by heat preservation, cooling, filtering and vacuum drying. The resin prepared by the method has good adsorption effect on heavy metal ions such as copper ions, lead ions, cadmium ions and the like, the metal ion adsorbing capacity of 80 mg/L Cu2+ solution is 107.37 mg/g, the metal ion adsorbing capacity of 80 mg/L Pb2+ solution is 80.04 mg/g, the metal ion adsorbing capacity of 80 mg/L Cd2+ solution is 78,94 mg/g, and the resin can be made into a heavy metal ion wastewater treating agent and has good application prospect in the aspects of removing and reclaiming heavy metal ions.

A topical cosmetic and dermatological preparation for reducing skin reddening which comprises (1R,2S,5R)-2-isopropyl-5-methyl-N-(2-(pyridin-2-yl)ethyl)-cyclohexane carboxamide and/or (1R,2S,5R)—N-(4-cyanomethyl-phenyl)-2-isopropyl-5-methylcyclohexane carboxamide.

The invention provides weeding compositions containing 2-(quinoline-8-yl)carbonyl-cyclohexane-1,3-dione compounds and application of the weeding compositions. Each weeding composition comprises a (a) composition, wherein the (a) composition comprises at least one 2-(quinoline-8-yl)carbonyl-cyclohexane-1,3-dione compound, a tautomer thereof and a salt thereof. The compositions provided by the invention are especially applicable to selective control on weeds or crop securing. The compositions are specially used to selectively control weeds in corn (maize), wheat, barley, meadow, pasture, rice, sorghum, sugarcane and plantation crops, and also are applicable to plant comprehensive processing. The compositions provided by the invention can be used to secure crops especially cereal plants.

The invention belongs to a method for preparing a nano ternary composite lithium ion anode material by utilizing a microemulsion. The method comprises the following steps: firstly, mixing a surfactant triton X-100 and a cosurfactant n-butyl alcohol with cyclohexane so as to prepare an emulgator; secondly, dissolving nickel salt, cobalt salt and manganese salt into deionized water; thirdly, preparing nickel, cobalt and manganese salt microemulsion; fourthly, preparing complexing agent aqueous alkali; fifthly, preparing alkali microemulsion; sixthly, adding the nickel, cobalt and manganese salt microemulsion into a reaction kettle; seventhly, adding alkali microemulsion dropwise into the nickel, cobalt and manganese salt microemulsion so as to prepare a turbidimetric solution; eighthly, standing the turbidimetric solution still so as to prepare a NixCoyMn(1-x-y)(OH)2 precursor; ninthly, carrying out ball-milling on the NixCoyMn(1-x-y)(OH)2 precursor and a lithium compound, mixing uniformly, and sieving; and tenthly, preparing the sieved mixture into a nano spherical LiNixCoyMn(1-x-y)(OH)2 anode material. The nano ternary composite lithium ion anode material has favorable cycle stability.

The present invention teaches a new process to produce novel, hard, optically clear, impact-resistant polyurethane polymers that are characterized by excellent thermo mechanical properties and chemical resistance, and the polymers made as a result of such a process.

The polyurethanes are made by reacting

a) a prepolymer made by reacting a polyisocyanate with a primary amine-terminated polyether with an amine functionality of about 2 and a molecular weight of >1000, and in which the free —NCO content of the resulting prepolymer is >18% by weight; with

b) (i) a polyol having an average hydroxyl functionality greater than or equal to 2 and an average hydroxyl equivalent weight of from about 300 to about 1,000, and (ii) a curing agent that has isocyanate reactive groups, a functionality of 2 to 3 and a molecular weight of <400.

More preferably the prepolymer is made by reacting a cycloaliphatic polyisocyanate with a primary amine-terminated polyether diamine of 2000 to about 2500 molecular weight, the polyol is either a polyester polyol triol with a molecular weight of between about 540 and 900, or a polyether glycol with a molecular weight of between about 650 and 2000, or a polyester polyol diol with a molecular weight of up to 2,000, and the curing agent is either dianhydrohexitol, an aromatic diamine, an aromatic ring containing diol or a cyclohexanedimethanol.