685 results about "Para position" patented technology

The invention relates to an organic optoelectronic material, a preparation method of the organic optoelectronic material and an organic light emitting diode containing the organic material. The material is shown in the formula I, wherein R1 and R2 are respectively and independently hydrogen, halogen, cyanogroup, nitryl, isothiocyano, sulfonyl, sulfuryl, acylamino, alkyl of which the carbon atom number is 1 to 10 or alkoxy of which the carbon atom number is 1 to 12; A1 and A2 are respectively and independently phenyl, polycyclic conjugate aryl of which the carbon atom number is 10 to 60 or aromatic heterocyclic group containing at least one of N, S and O; two phenyls having groups R1 and R2 and two para-positions relative to the groups R1 and R2 are connected by directly bonding or connected through X; A1 is connected with A2 by directly bonding or through Y; X and Y are respectively and independently sulphur, oxygen, alkylene of which the carbon atom number is 1 to 6 or alkenyl of which the carbon atom number is 2 to 6; Ar1 and Ar2 are respectively and independently phenyl, cyanophenyl, alkyl benzene, polycyclic conjugate aryl of which the carbon atom number is 10 to 60 or aromatic heterocyclic group containing at least one of N, S and O.

There are provided an organic having both excellent hole transporting property and satisfactory electron transporting and showing excellent durability against electric oxidation / reduction and a high triplet excitation level, and a charge transporting material and an organic electroluminescent device each using the organic compound. The organic compound is represented by following Formula (I):wherein Cz1 and Cz2 each represent a carbazolyl group; Z represents a direct bond or an arbitrary linkage group enabling the conjugation of nitrogen atoms in the carbazole rings of Cz1 and Cz2 with each other; and Q represents a direct bond connecting to “G” in following Formula (II):wherein Ring B1 represents a six-membered aromatic heterocyclic ring having “n” nitrogen atom(s) as hetero atom(s); “n” represents an integer of from 1 to 3; G represents a direct bond or an arbitrary linkage group connecting to Q when G connects to Q; Gs connect to carbon atoms at the ortho-position and the para-position with respect to nitrogen atom(s) in Ring B1; G represents an aromatic hydrocarbon group when G does not connect to Q; and “m” represents an integer of from 3 to 5.

This invention relates to a method of treatment for osteoarthritis involving inhibitors of aggrecanase that demonstrate IC50s of less than 20 nM and demonstrate differential potency against matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinases (ADAMs or reprolysins). This invention also relates to compounds, methods of treatment and composition of Formula I: or a therapeutically acceptable salt thereof, whereinX is carbon or nitrogen;R1 and R2 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, wherein at least one of R1 and R2 is methyl;R3 and R4 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, or R3 and R4 may be taken together to form a carbonyl group; andR5 and R6 are independent substituents in the ortho, meta, or para positions and are independently selected from the group consisting of hydrogen, halogen, cyano, methyl, and ethyl;with the provisos:when X is carbon, then R7 and R8 are both hydrogen and at least one of R1, R2, R3, and R4 is hydroxy;when X is carbon and R5 is para-halo, then at least one of R6, R3, and R4 is not hydrogen;when X is nitrogen, then R8 is not present and R7 is hydrogen or a group of the formula: wherein, Y is —CH2—NH2 or —NH—CH3; andwhen X is nitrogen and R7 is H, then R3 and R4 are taken together to form a carbonyl group.

An organic compound and a charge-transporting material which are excellent in both a hole-transporting property and an electron-transporting property and have excellent electrical oxidation / reduction durability and a high triplet excitation level are provided, and an organic electroluminescent device which uses this organic compound and has high luminous efficiency and high driving stability and long lifetime is provided. One molecule of the organic compound has two or more partial structures represented by the following Formula (I):wherein Cz denotes a carbazolyl group; Z denotes a direct link or an optional linking group; N atoms present in one molecule do not conjugate with each other excepting between N atoms in the same B1 rings; one molecule contains only one pyridine ring; one molecule contains a plurality of Q's; and Q denotes a direct link connected to G present in a moiety represented by the following Formula (II):wherein B1 ring is a six-membered aromatic heterocycle containing n N atoms as a hetero atom; n is an integer of 1 to 3; when G is linked to Q, the G denotes a direct link or an optional linking group which links to Q; when G is not linked to Q, the G denotes an aromatic hydrocarbon group; G's are bound to C atoms in ortho-position and para-position with respect to the N atom in B1 ring; and m is an integer of 3 to 5.

The invention relates to a method for preparing an alkali lignin-phenolic resin composite adhesive for wood adhesive, which comprises the steps that hydroxymethylation alkali lignin is prepared; and the alkali lignin-phenolic resin composite adhesive is prepared. The method adopts hydroxymethyl reaction to improve the activation of alkali lignin; the hydroxymethylation alkali lignin is prepared; lignin is selected and added by three batches; the batch addition of the lignin can achieve the function of adjusting the degree of the hydroxymethyl reaction, contribute to the realization of the hydroxymethyl reaction, reduce the condensation reaction between lignin hydroxymethyls and achieve the aim of the farthest activation of the lignin. In the synthetic process, the PH value and viscosity in the reaction are strictly controlled; and the batch feeding method is used to carry out orderly and rapid hydroxymethyl reaction. As the lignin has huge molecular weight, large space steric hindrance of the active site on aromaticring and low reaction activity, the lignin is needed to be modified so as to improve the reaction activity; as a molecule comprises a phenolic hydroxyl, the ortho-position and the para-position of the molecule have certain activity; and hydrogen in the alpha-carbon atom can be replaced by hydroxymethyl to have the hydroxymethylation reaction, thereby introducing a hydroxymethyl active group in the molecule.

The invention provides a tin-titanium-silicon molecular sieve and a preparation method and application thereof. The tin-titanium-silicon molecular sieve contains elemental silicon, elemental titanium, elemental tin and elemental oxygen, and the interiors of at least a part of crystal grains of the tin-titanium-silicon molecular sieve have hole structures. The invention provides a method for hydroxylation of phenol. The method comprises a step of contacting phenol and hydrogen peroxide with a catalyst under the conditions of phenol hydroxylation, wherein the catalyst contains the tin-titanium-silicon molecular sieve provided by the invention. The tin-titanium-silicon molecular sieve provided by the invention has good catalytic oxidation; if applied to phenol hydroxylation, the tin-titanium-silicon molecular sieve provided has higher catalytic oxidation activity and particularly high selectivity on a para-position product hydroquinone compared with titanium-silicon molecular sieve not containing tin or a tin-loaded titanium-silicon molecular sieve.

The invention relates to a printed circuit board (PCB) layer-by-layer para-position laser drilling method. The PCB layer-by-layer para-position laser drilling method comprises the following steps: manufacturing a target on the opposite second layer of circuit board; removing a copper layer covered on the target or removing a copper layer and a resin layer covered on the target, exposing the target and performing para-position; and directing drilling a blind hole by using laser. Owing to the PCB layer-by-layer para-position laser drilling method, the problem of hole misregistration of the blind hole on the inner layer can be effectively solved.

The invention discloses a manufacturing technology of copy-allocating insulated paper of para and meta aramid fiber, which comprises the following steps: adopting para-aramid chopped fiber and meta aramid pulp fiber to dispense insulated paper according to certain proportion; dispersing the fiber through PEC or congenic adjuvant; improving paper evenness and flexibility; proceeding heat pressing for para aramid fiber to modify physical strength and insulating property.

The invention discloses a vanillin derivative containing dithioacetals, a preparation method and a purpose thereof. A structural general formula of the derivative is shown in a specification, wherein, R1 is a substituted aromatic ring, heterocycle or 1,1-dichloroethylene; a methyl atom, a nitro atom or a halogen atom is contained on an o-position, a meta-position and a para-position of the aromatic ring, the halogen atom can be fluorine, chlorine, or bromine; the heterocycle is five-membered or six-membered heterocycle, and one halogen atom is contained on the heterocycle. R2 is substituted aromatic ring, 1-propanol or heterocycle; fluorine or chlorine is contained on para-position of the aromatic ring, and the heterocycle is furan ring. The compound can inhibit plant virus such as tobacco mosaic virus, cucumber mosaic virus and potato y potyvirus.

The invention relates to preparation technique of full para position Fanglun amide paper which includes: adding in water para position aromatic amide short fiber, para position aromatic poly-amide cream, disperse assistant, acquire cream material by dispersing the raw material; the cream confection on net; dehydrate, squeezing, drying; dipping in para position aromatic poly-amide solution to get fiber paper, processing with heat or cold pressing, the coagulation liquor shapes, washing off dissolvent, dehydrating, squeezing and drying to get para position Fanglun amide paper. The paper is of high stretch resistance tearing resistance, abrading resistance and fine flexibility, can be applied as structure material, insulation material for power generator, motor, and potential transformer, honeycomb material, heat insulation material, fire retardant material, filter material or electric material; it is of low wet heat expanding factor, fine controllable dielectric properties, fine heat stability and laser processability, can be applied to produce special purpose paper for high temperature or layer pressing plate of satellite communication line and high speed transmitting circuit.

The invention provides a benzoxazine resin composition having excellent resistance to heat and moisture and providing excellent handleability when made into prepreg, and prepreg and a fiber-reinforced composite material prepared from the composition. The composition contains (A) a compound having in its molecule a benzoxazine ring represented by the formula (1), (B) an epoxy resin, (C) a curing agent, and (D) a toughness improver:(R1: C1 to C12 chain alkyl group, etc., and H is bonded to at least one of C of the aromatic ring at o- or p-position to the carbon atom to which the oxygen atom is bonded).

The invention relates to a wafer replacing device used in chemical mechanical polishing equipment and belongs to the technical field of chemical mechanical polishing equipment. The wafer replacing device comprises a lifting rack, the upper and the lower parts of the lifting rack are connected through a hollow cavity in a penetration manner, and a first air cylinder controlling the lifting of the lifting rack and a linear bearing are mounted at the lower part of the lifting rack; a guide shaft penetrates through the linear bearing; the upper part of the lifting rack is connected with a basin-shaped para-position ring through a spring, a second air cylinder controlling the lifting of a wafer support is mounted on the para-position ring, and an air cylinder rod of the second air cylinder penetrates through the para-position ring and then is connected with the bottom of the wafer support; and the axes of the wafer support, the second air cylinder and the para-position ring coincide with each other and are parallel to the axis of the linear bearing. During the polishing process, the wafer replacing device can be matched with a peripheral mechanical hand to finish the delivering and the taking of the wafer and also can be matched with a polishing head to finish the loading and the unloading of the wafer; and in the integral process including loading, unloading, taking and delivering, the precise positioning of the wafer can be realized and the damage to the wafer can be prevented.

The invention relates to a sulfonium salt photo-acid generator using stilbene as the main body and a preparation method thereof, which discloses a design and preparation method of a sulfonium salt photo-acid generator using stilbene chromophore as the main body and having two-photon absorption capability, in particular to a novel photo-acid generator synthesized by using stilbene as the conjugated chain bridge, adding various electron donors on para positions of the benzene ring and using sulfonium salts with different substituent groups as electron acceptors and a preparation method thereof. The photo-acid generator can be well dissolved in a common solvent such as dichloromethane, trichloromethane, acetone and tetrahydrofuran, and has the advantages of simple synthesis procedure, easy purification, high yield and the like. Because the photo-acid generator has a push-pull type molecular structure and the molecule indicates the two-photon absorption properties of the stilbene compound, the photo-acid generator has great application values in the fields of single-photon photoetching and two-photon photoetching.

The provided alpha, omega-end polyaminoether as the new curing agent for epoxy resins belongs to the compound with general formula as (1) (wherein, all m, x and y for integer, 10>=m>=2, 6>=x+y>=1 and n for repetitive unit of polyether chain segment)or the mixture with aromatic polyaminoether, contains substituents on ortho-, meta- or para-position of benzene ring, and has high strength and ductility and filling rate without toxin.

The object of the present invention is to provide an organic EL element, and the like utilizing the aforementioned organometallic complex that shows phosphorescence light emission and that has excellent light-emitting efficiency, thermal and electrical stability, and long drive lifetime. The organic EL element of the present invention contains organometallic complex has properties comprising; a metal atom and, a terdentate ligand that is terdentate-bonded to this metal atom through two nitrogen atoms and a carbon atom, and the carbon atom is situated in-between these two nitrogen atoms, and a monodentate ligand that is monodentate-bonded to the aforementioned metal atom through one of the atom selected from a N atom, an O atom and a S atom, and also comprises a ring structure having a substituent group or substituted by a halogen atom at the position, excluding the para-position as compared with the metal atom.

The invention relates to a method of producing methylphenol by gas-phase alkylation of phenol and methanol. The phenol and the methanol after being preheated are mixed with a diluent gas, pass continuously through a catalyst bed layer of the phenol-methanol alkylation, and are subjected to a gas-phase reaction at a temperature of 200-500 DEG C and at a feed weight hourly space velocity of 0.5-20 h<-1> to produce the methylphenol. A phenol-methanol alkylation catalyst is prepared by modification using MCM-22, ZSM-5 and a beta molecular sieve as active components. The phenol and the methanol are used as raw materials. The methylphenol selectivity can reach 90%, and the para-position selectivity can reach 58%. The catalyst is good in stability. Producing processes are free from equipment corrosion. The catalyst is environmental friendly and has a good industrial application prospect.

Arylamines with electron donating groups such as alkyl and alkoxy groups in the meta position on the aromatic ring change the polymerization temperature of the benzoxazine prepared therefrom and offer an opportunity for an additional crosslinking site (the para position on the aromatic amine can couple to a Mannich base generated by the opening of the oxazine ring of the benzoxazine or a methylene bridge generated by a degradation reaction). Naphthenic amines with an alkyl or alkoxy substituent on the 5th through the 8th carbon atom on the naphthalene ring can function similarly. The polymers for benzoxazines prepared from at least 10% substituted aromatic or naphthenic amines are useful due to low polymerization temperatures and higher Tg (glass transition temperature).

The invention relates to a prepreg manufactured from aromatic synthetic fiber paper used as a printed circuit board, and a copper clad board as well as printed circuit board manufactured from the prepreg. The synthetic fiber paper used as the base material of the base board of the circuit board is manufactured from the following materials in percentage by weight: 10-90% of structural fiber (para-position aramid fiber) and 90-10% of tacky fiber (para-position aramid fibrid or pulp). In the invention, the base board of the circuit board and the printed circuit board using the synthetic fiber paper as the base material have the advantages of light weight, good temperature tolerance, high thermal stability and fine processability.

Disclosed is a triphenylene based aromatic compound, wherein a benzene center is substituted with a triphenylene group and another aromatic group such as triphenylenyl, pyrenyl, phenylvinyl, carbazolylphenyl, or arylanthryl in the meta position of the benzene center. The meta-substituted aromatic compound of the invention has better thermal stability (Tg) than the conventional para-substituted aromatic compound. The meta-substituted aromatic compound, served as a hole transporting layer or a host material applied in a light emitting layer in an OLED, is more preferable than the conventional para-substituted aromatic compound.

The invention discloses a rare earth catalyst system, i.e., nitrogen-containing functional rare-earth isoprene rubber, characterized in that: the weight-average molecular weight is 1*10<4>-120*10<4>; measured as 100% of total amount of polymer, the mass percentage of combined styrene derivative is 1-50%, and the mass percentage of isoprene is 50-99%; measured as 100% of total amount of polyisoprene, the mass percentage of 1,4-polyisoprene is 70-98%; the styrene derivative is selected from nitrogen atom-substituted styrene and at least comprises a tertiary amine group substituent; the substituent can be directly conjugated to the ortho-position, the meta-position or para-position of styrene, and can be conjugated to the alkyl group at the ortho-position, the meta-position or para-position of styrene; and the styrene derivative can comprise mono substituent, dual substituents or three substituents, wherein the substituents can be same or different.

The invention discloses an electrolyte containing benzene dinitrile and a lithium ion battery applying the electrolyte. The electrolyte containing the benzene dinitrile comprises a non-aqueous solvent, a lithium salt and an additive, wherein the non-aqueous solvent is a carboxylic acid ester compound with a mass percentage of 1-40% in the electrolyte containing the benzene dinitrile; the additive comprises fluoroethylene carbonate (FEC) and at least one of benzene dinitrile compounds having a structure shown in a formula I, the formula I is shown in the specification, and n is an integer from 1 to 3; in 0.01-5% of the benzene dinitrile compound in the additive, double nitrites containing carbons of 1 to 3 are connected at ortho positions, meta positions and para positions of a benzene ring, an acetonitrile radical group (-C-CN) on the benzene ring can be complexed with metal ions such as Co<3+> in a positive active material, thus, electrolyte decomposition is reduced, the dissolution of the metal ions is suppressed, a positive pole is protected, and the high-temperature performance of the battery is improved.

A carrier for use for separation purpose and a method for separation of a compound enable a chemical reaction to be performed in a liquid phase, a compound of interest to be separated from the liquid phase after the completion of the reaction readily, the separated compound to be evaluated by structural analysis or the like while the compound is being bound to the carrier, and the compound to be separated from the carrier readily. A carrier for separation is also provided which has a reaction site capable of reacting with other compound(s) on a benzene ring, and a long-chain group having a specified carbon atom(s) at each of the ortho-position and the para-position of the reaction site through an oxygen atom.

There is provided a wholly aromatic polyester which has excellent heat resistance and can be produced by an ordinary polymerizer and melt-molded with ease. That is, a wholly aromatic polyester which contains, as essential constituents, the constitutional unit represented by the following general formula (I) in an amount of 40 to 75 mol %, the constitutional unit represented by the following general formula (II) in an amount of 8.5 to 30 mol %, the constitutional unit represented by the following general formula (III) in an amount of 8.5 to 30 mol % and the constitutional unit represented by the following general formula (IV) in an amount of 0.1 to 8 mol % based on the total of all constitutional units and which exhibits optical anisotropy in a molten state.wherein Ar1 is 2,6-naphthalene; Ar2 is at least one selected from 1,2-phenylene, 1,3-phenylene and 1,4-phenylene; Ar3 is at least one selected from 1,3-phenylene, 1,4-phenylene and the residue of a compound having at least two phenylene groups connected with each other at the para position; and Ar4 is 1,4-phenylene.

The invention discloses a para-position aramid fiber paper used for a cellular material and a preparation method thereof. The preparation process comprises the following steps: adding polyimide fibers, defibering and dispersing; papermaking together with para-position aramid fiber, wherein the papermaking proportion in parts by weight is as follows: 20-50% of para-position aramid short cut fiber, 35-60% of para-position aramid pulp fiber and 5-30% of polyimide fiber; and squeezing, drying and carrying out hot press moulding.. According to the preparation method, tear strength, temperature resistance and fire resistance of the para-position aramid fiber paper can be obviously improved, paper breaking during papermaking is reduced, operating speed of a paper machine and production efficiency are improved, and negative effects on properties of a paper sheet as a cohesive fiber such as a polyester fiber is introduced can be avoided.

The invention provides a porous pyrenyl organic framework material rich in hydroxyl and a preparation method thereof. The method comprises the following steps of under inert atmosphere, performing condensation polymerization on a phenol compound and tetra-formyl group aromatic aldehyde in an organic solvent to obtain the porous pyrenyl organic framework material rich in the hydroxyl, wherein the phenol compound is polybasic phenol or polybasic naphthol; the tetra-formyl group aromatic aldehyde contains 4 to 8 benzene rings, and four formyl groups are respectively connected with four different benzene rings; and the organic solvent is an alcohol organic solvent or an ether organic solvent. The porous pyrenyl organic framework material rich in the hydroxyl, provided by the invention, is a formless macromolecule net working polymer obtained by leading the phenolic group ortho-position or para-position of the phenol compound and the formyl groups in the tetra-formyl group aromatic aldehyde to generate condensation polymerization, and has fluorescence.

The invention discloses a brown polyazo reactive dye compound, and a preparation method and an application thereof. The structure of the brown reactive dye compound is represented by general formula (I), one of R1 and R2 in the formula (I) is selected from groups represented by general formula (II), the other one of the R1 and R2 is selected from groups represented by general formula (III), and R3 in the formula (II) is H, -OCH3 or -SO3M; -SO2OCH2CH2OSO3M is positioned in the para-position or the meta-position of an azo group; and in the formula (III), R4 is -NHCONH2 or -NHCOCH3, R5 is H or -OCH3, R6 is H, -OCH3 or -SO3M, and M1 and M2 respectively and independently are H or alkali metals. The dye compound is suitable for printing and dyeing cellulose fibers, and has the advantages of excellent dye uptake, high color fixing rate, excellent launderability, excellent friction resistance, excellent color fastness, and good combustion stability with the fibers.

Aviation gasolines having an enhanced peak indicated mean effective pressure are provided by admixing with a leaded base aviation gasoline an aromatic amine of the formula NH2—Ar—(R1)n wherein R1 is selected from C1-C10 alkyl, halogen, and mixtures thereof provided that when R1 is alkyl it occupies the meta- or para-positions on the aromatic ring, Ar is a phenyl aromatic group and n is an integer from 0 to 3 to provide an aviation gasoline having a peak indicated mean effective pressure as determined by ASTM D-909 of greater than about 200 psi.

The invention provides a camera, an image display device, an image display method and program, capable of simply retrieving the person most suitable for the clothes relative to the image-replaced person of the clothes. The camera comprises: a camera portion (2) for outputting the image data of the clothes (23); a display portion (8a) for displaying the clothes (23) based on the image data; a display control portion (8) for laminating a template (21) on the display portion (8a) to display, wherein the template (21) is used for para-positioning a part of the clothes (23) when obtaining the image data of the clothes (23); and a recording portion (4) for recording the image data of the clothes (23).

The invention relates to a preparation method for zeolite catalyst to enhance para-position selectivity for toluene disproportionation, which comprises: adding natural clay adhesive and assist-extrusion agent contained alumina and silicon dioxide into hydrogen-type zeolite powder to form, treating with organic acid; using ethyl silicate for chemical liquid-phase deposition modification to dried sample; baking, aging, baking, and treating with 100% water vapor. This product can improve selectivity obviously, can achieve 96.5wt% to xylene selectivity when the toluene conversion is 23wt%, and needs low cost.