113 results about "Diphenyl sulfide" patented technology

The invention relates to a photosensitive composite which contains a specific ketoxime ester compound used as a polymerization initiator, an alkali-soluble resin, DPHA (Dipentaerythritol Hexaacrylate) and a colorant. The composite has good storage stability and also has high exposure sensitivity, good developing performance, no wrinkle on formed pattern surfaces and excellent solidifying effect when used for making black matrixes (BM) and RGB (Red Green Blue) of a color filter. The invention also relates to the application of the photosensitive composite in the production of the color filter, and the filter made from the photosensitive composite has high optical transparency and no light leakage.

The invention relates to a photoinitiator of diphenyl sulfide oxime esters. The photoinitiator has a chemical structure shown as a formula (1) in the specifications, is excellent in application performance, high in photosensibility, free of yellowing and good in dissolubility, and has the advantages of greatly increasing a photo-curing performance when applied to photosensitive compositions and obviously increasing the performance and production efficiency in the photosensitive composition application field, such as preparation of color filters. The invention further relates to a preparation method of the photoinitiator and application of the photoinitiator to the photosensitive compositions.

The invention discloses a preparation process of chlorinated phenol; phenol is used as a raw material, a mixture of arbitrary one of diphenyl sulfide and dimethyl sulfide, arbitrary one of acetic acid and toluene sulfonic acid and arbitrary one of aluminum trichloride and ferric trichloride is used as a catalyst, a chlorinated phenol crude product is generated through sulfuryl chloride chlorination, and a target product is obtained by melt crystallization. The mixed catalyst used in the reaction has a positioning function, the content of p-chlorophenol in the monochlorophenol mixture generated from the reaction is greater than 83%, the content of 2,4-dichlorophenol in dichlorinated phenol generated from the reaction is greater than 98%, the amount of trichlorinated phenol impurities generated from the reaction is reduced, and 2,4,6-dichlorophenol with the content greater than 99% and the total yield more than or equal to 98% is obtained without purification treatment; moreover, energy consumption is greatly reduced, and high-content p-chlorophenol and high-quality 2,4-dichlorophenol can be produced at the same time.

The invention provides a polyimide film which is prepared from a polymer of a first repeating unit shown as formula I. The invention further provides two preparation methods of the polyimide film. In the preparation methods, the polyimide film is synthesized and prepared by taking diphenyl sulfide dianhydride as a dianhydride monomer and 2,2'-bis-trifluoromethyl-4,4'-diamino biphenyl as a diamine monomer, wherein the diphenyl sulfide dianhydride is relatively weak in electronegativity of a thioether bond and relatively weak in electron absorbance and can bend a main chain of the polymer, so that the diphenyl sulfide dianhydride has the function of reducing formation of a charge transfer complex in a polyimide molecule; a trifluoromethyl substituent is introduced at a 2,2'-position of the 2,2'-bis-trifluoromethyl-4,4'-diamino biphenyl to generate a non-coplanar structure, so that a conjugated unit can be weakened. The two monomers are easy to synthesize and relatively low in cost, so that the polyimide film is relatively high in visible light transmittance, excellent in thermal and mechanical properties and low in production cost.

The invention discloses a triarylsulfonium salt with a benzophenone framework as well as a preparation method and application of the triarylsulfonium salt. According to the method, 4-benzoyl-4'-methyl-diphenyl sulfide (BMS) is used as a raw material to react with a diaryliodonium salt under the copper-catalyzed condition to prepare the triarylsulfonium salt; and the maximum ultraviolet absorption wavelength range of the compound can be shifted to 250nm, and meanwhile, the ultraviolet absorption wavelength range is widened due to the existence of free radicals and cation ion initiating groups. The prepared triarylsulfonium salt can be used as a photoinitiator for an ultraviolet photo-cured compound and particularly for an ultraviolet photo-cured coating, and has favorable reaction activity, surface curing capability and solubility; and the mixed groups exist in a molecule to ensure that the molecule is relatively stable, so that the light inhibiting performance is effectively improved.

The present invention relates to compositions and methods for promoting tissue regeneration, preferably neural tissue regeneration. Compositions of the invention include (i) certain diphenyl sulfides, diphenyl sulfoxides, diphenyl sulfones, and sulfide, sulfoxide and sulfones of dibenzothiophene and thioxanthene, as well as various analogues and derivatives of these compounds; (ii) one or more cells harvested from an animal or organism subsequent to the administration of a composition comprising a compound of (i); or (iii) any combination of (i) and (ii). The invention can be useful in treating decreases in neuronal function, for example from injury or disease.

An oxygen scavenger composition includes an organic oxygen scavenger, a transition metal catalyst, and a blend of at least two photoinitiators selected from 1,3,5-tris(4-benzoylphenyl)benzene, thioxanthone derivative, acyl phenylphosphineoxide derivative, and diphenyl sulfide derivative. A film includes at least one layer including an organic oxygen scavenger, a transition metal catalyst, and a blend of at least two photoinitiators selected from 1,3,5-tris(4-benzoylphenyl)benzene, thioxanthone derivative, acyl phenylphosphineoxide derivative, and diphenyl sulfide derivative. A method of triggering an oxygen scavenger composition includes providing an oxygen scavenger composition including an organic oxygen scavenger, a transition metal catalyst, and a blend of at least two of 1,3,5-tris(4-benzoylphenyl)benzene, thioxanthone derivative, acyl phenylphosphineoxide derivative, and diphenyl sulfide derivative; and subjecting the oxygen scavenger composition to a dosage of actinic radiation effective to trigger the oxygen scavenger composition.

This invention discloses a method for preparing poly (phenylene sulfide). The raw materials include: monomers 4, 4'-dihydroxyl diphenyl sulfide (DHPS) and 4, 4'-dihalogen diphenyl sulfide at a mol. ratio of 1:1; additive 1.1-2.6 mol. /mol. DHPS; composite catalyst 0.22-1.08 mol./mol. DHPS; solvent 400-700 mL/mol. DHPS; azeotropic dehydrating agent 200-400 mL/mol. DHPS. The method comprises: (1) adding the above raw material into a reactor under nitrogen protection, stirring, heating to 140-150 deg.C until azeotropic refluxing, sealing the reactor when water and the azeotropic dehydrating agent are completely distilled out, heating to 180-350 deg.C, and polymerizing for 4-10 h; (2) precipitating the solution, filtering, washing, purifying and vacuum-drying to obtain poly(phenylene sulfide).

The present invention discloses a ketone oxime ester photoinitiator green synthetic method. According to the method, diphenyl sulfide as a raw material is condensed with caprylyl chloride under the effect of a zirconium catalyst, and then a ketone oxime ester photoinitiator can be obtained by oximation and esterification. The method does not relate to high temperature and high pressure reaction, and is mild in reaction conditions, and good in security. No aluminum chloride or zinc waste water is produced due to use of the zirconium catalyst during the synthesis process, produced byproducts can be recycled, no environmentally harmful solvent is used, and the ketone oxime ester photoinitiator green synthetic method is environmentally friendly, and therefore suitable for industrial production.

The synthesis of aromatic dithiol includes the following steps: sulfochlorination of aromatic compound diphenyl ether, diphenyl methane, diphenyl sulfide and 1,4-diphenyl or 2,2-diphenyl propane; and the reaction between the sulfuryl chloride compound, zinc as reductant in sulfuric acid or hydrochloric acid medium system at 70-90 deg.c for 1.5-3 hr with the reactant moar ratio of sulfuryl chloride compound to zine powder to sulfuric acid or hydrochloride acid being 1 to 7-15 to 8-30. The process of the present invention has high product yield, no toxic solvent used and low cost, and the new aromatic dithiol products are used as fine chemical intermediate and synthesized material.

Provided are diphenyl sulfide derivatives which have excellent S1P3 antagonistic activity and are useful as drugs. Intensive studies have been made for the purpose of creating a compound having S1P3 antagonistic activity. As a result of the intensive studies, it has been found that diphenyl sulfide derivatives represented by general formula (1) have excellent S1P3 antagonistic activity. In general formula (1), R¹ is a hydrogen atom or the like; R² is an optionally substituted alkyl group having 1 to 6 carbon atoms, or the like; X is a methylene group which may be substituted with one or two fluorine atoms, or the like; Y is a hydrogen atom or the like; and Z is a halogen atom.

The invention relates to an optical epoxy resin and a synthesis method thereof. The optical epoxy resin is a thiobisbenzenethio-diphenol diglycidyl ether copolymer. The invention also provides a synthesis method of the optical epoxy resin. The optical epoxy resin and the synthesis method thereof have the advantages of easiness in popularization and application.

The invention belongs to the technical field of application of photoelectric materials and particularly relates to a thermally activated delayed fluorescent material, a preparation method therefor andan application of the thermally activated delayed fluorescent material. According to the thermally activated delayed fluorescent material, the preparation method therefor and the application of the thermally activated delayed fluorescent material, the thermally activated delayed fluorescent material is formed through introducing a phenyl bridge between a donor fragment and a receptor fragment oronto a donor/receptor fragment, the PI conjugation degree of the thermally activated delayed fluorescent material is extended, the distance of separated electrons is enlarged, the energy loss of a triplet-charge reaction is avoided due to a material delocalization effect design, and device efficiency roll-off is improved through regulating and controlling an exciton transition angle. When the thermally activated delayed fluorescent material is applied to a device as a luminescent layer object material or a light outlet layer material, blue shift of luminescent wavelength will be caused by N substitution on donor/receptor fragments, the electron withdrawing capability of diphenyl sulfide sulfone is weakened, widening of energy gaps is facilitated, and deep blue light is achieved; and object-to-subject triplet energy backflow can be effectively inhibited by a triplet energy level lower than that of a subject material, so that triplet excitons are confined into a luminescent layer, the light withdrawing efficiency is increased, and thus, the thermally activated delayed fluorescent material is an ideal luminescent layer object material or light outlet layer material.

A process for preparing a dibenzothiazepine derivative such as dibenzo[b,f] [1,4]thiazepin-11-one employable as a starting material for the preparation of 11-[4-(2-(2-hydroxyethoxy)ethyl)]-1-piperadinyldibenzothiazepine derivative which is known to be effective as an antipsychotic pharmaceutical, has the steps of reacting a nitrobenzene derivative with a thiosalicylic acid derivative, reducing the obtained 2-nitro-2′-carboxy-diphenylsulfide derivative, and subjecting the obtained 2-amino-2′-carboxy-diphenylsulfide derivative to dehydration-condensation reaction.

The invention aims to solve the problems of lower activity, large catalyst dosage and the like of a polyoxometalate cluster catalyst in a selective oxidation process of diphenyl sulfide with hydrogen peroxide as an oxidizing agent, and provides a preparation method for synthesizing novel N-N-allyl imidazole functionalized molybdenum oxygen cluster catalyst which is expected to have better catalysis in selective oxidation of diphenyl sulfide.

The invention discloses a diphenyl sulfide compound displaced with double triazole and a preparing method and application thereof. 'One pot method' is adopted, in other words, bi(4-bromophenyl)thioether, 1,2,4-triazole , potassium carbonate and copper oxide are heated to prepared the organic compound. The molar ratio among the double (4-bromophenyl) thioether, the triazole comprising the first azole, the second azole and the fourth azole, the potassium carbonate and the copper oxide is 2:10-1:5:30:1. The reaction temperature ranges from 70 DEG C to 210 DEG C, and the reaction time ranges from 24 hours to 120 hours. The preparing method has the advantages of being simple in technological operating, low in cost, low in environmental pollution, and suitable for industrial production in a large-scaled mode. The double (4-(1H-triazole comprising the first azole, the second azole and the fourth azole-1-group) phenyl) thioether compound can be applied to the researching aspect of a sterilizing agent.