672 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.

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):

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 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 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 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.

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.

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.

The embodiment of the invention discloses a top-emitting full-color organic light-emitting display device and a preparation method thereof. The method comprises: preparing a white organic luminescent device on a substrate; making first packaging films on the white organic luminescent device; preparing a super-hydrophobic film on the first packaging film, and employing a super-hydrophobic conversion method to perform modification of the special area of the super-hydrophobic film to form a hydrophilic area pattern; preparing color filter layers on the hydrophilic area pattern, and making a black matrix between color filter layers with different colors; and making second packaging films on the color filter layers and the black matrix. According to the technical scheme of the invention, the problems of complex technology of the fine mask-type processing is complex, the high cost and the evaporation para position are solved, the preparation technology is simplified, and the manufacturing cost of the OLED device is reduced.

The invention provides aramid fiber paper which is composited in a multi-ratio layering manner and a preparation method of the aramid fiber paper. The layered composite aramid fiber paper comprises a surface layer, a core layer and a bottom layer, and is characterized in that the surface layer and the bottom layer are respectively made of following materials: 60 to 90 parts by weight of aramid fiber chopped fibers and 10 to 40 parts by weight of aramid fiber precipitation fibers; the core layer is made of the following materials: 5 to 40 parts by weight of aramid fiber chopped fibers and 60 to 95 parts by weight of aramid fiber precipitation fibers; the aramid fiber chopped fibers are meta-position aramid fibers or para-position aramid fibers with length being 6 to 10mm and fineness being 1 to 3 deniers; the aramid fiber precipitation fibers are irregular fibrous or thin-film fragmented meta-position aramid fibers; the surface layer and the bottom layer account for 40 to 80 percent of the weight of a piece of paper, and the core layer accounts for 20 to 60 percent of the weight of the piece of paper. By adopting the method, the mechanical performance, the insulation performance, the permeability and the specific surface area of a paper sample can be effectively improved.