1608 results about "Sulfone" patented technology

A pharmaceutical composition comprising a co-crystal of an API and a co-crystal former; wherein the API has at least one functional group selected from ether, thioether, alcohol, thiol, aldehyde, ketone, thioketone, nitrate ester, phosphate ester, thiophosphate ester, ester, thioester, sulfate ester, carboxylic acid, phosphonic acid, phosphinic acid, sulfonic acid, amide, primary amine, secondary amine, ammonia, tertiary amine, sp2 amine, thiocyanate, cyanamide, oxime, nitrile diazo, organohalide, nitro, s-heterocyclic ring, thiophene, n-heterocyclic ring, pyrrole, o-heterocyclic ring, furan, epoxide, peroxide, hydroxamic acid, imidazole, pyridine and the co-crystal former has at least one functional group selected from amine, amide, pyridine, imidazole, indole, pyrrolidine, carbonyl, carboxyl, hydroxyl, phenol, sulfone, sulfonyl, mercapto and methyl thio, such that the API and co-crystal former are capable of co-crystallizing from a solution phase under crystallization conditions.

A composition and method for performing a polynucleotide amplification reaction at low temperature, including a polynucleotide amplification reaction mixture into which is incorporated a sufficiently high concentration of a low molecular weight compound selected from the group consisting of amides, sulfones, sulfoxides and diols, to accomplish the amplification at the low temperature. In another embodiment, a composition and method for enhancing a polynucleotide amplification reaction, including a polynucleotide amplification reaction mixture into which is incorporated a low molecular weight diol in an amount effective to enhance the polynucleotide amplification.

The invention provides a black composite reactive dye having three primary color constituents comprising, green disazo dye employing ethylene sulfone series arylamine or aniline derivative as diazo component and H acid as coupling component, one ore more red disazo dyes employing sulfoalkyl J acid or carboxymethyl J acid derivatives as coupling components, one ore more yellow bisazo or polyazo dyes employing sulfochlorinated 3,5-diaminobenzoic acid or sulfoalkyl derivatives as coupling components. The dye can be applied to intermittent and continuous dyeing for cellulose fiber, protein fiber, poly nylon and their fiber mixed fabrics.

A poly(ethylene glycol) derivative is disclosed that is activated with a sulfone moiety for selective attachment to thiol moieties on molecules and surfaces. The activated PEG is water soluble, hydrolytically stable for extended periods, and forms hydrolytically stable linkages with thiol moieties. The linkages generally are not reversible in reducing environments. The PEG derivative is useful for modifying the characteristics of substances including modifying biologically active molecules and surfaces for biocompatibility. Methods for synthesizing the active PEG and for preparing conjugates of the active PEG and other substances, including biologically active substances, are also disclosed.

A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive and negative electrodes, and a non-aqueous electrolyte. The negative electrode includes composite particles and a binder. Each of the composite particles includes: a negative electrode active material including an element capable of being alloyed with lithium; carbon nanofibers that are grown from a surface of the negative electrode active material; and a catalyst element for promoting the growth of the carbon nanofibers. The binder comprises at least one polymer selected from the group consisting of polyimide, polyamide imide, polyamide, aramid, polyarylate, polyether ether ketone, polyether imide, polyether sulfone, polysulfone, polyphenylene sulfide, and polytetrafluoroethylene.

Polyimide sulfone resins are provided with a glass transition temperature of from 200-350° C., residual volatile species concentration of less than 500 ppm and a total reactive end group concentration of less than about 120 milliequivalents/kilogram resin. The resins have high heat capability and good melt stability. Methods to prepare the said resins and articles made from the resins are also provided.

The invention discloses a colorless highly-transparent polyimide film as well as a preparation method and an application thereof. The film is prepared from semi-aromatic polyimide resin of which the structural formula is shown as formula I, wherein Al is an alicyclic structure, R1 is an aromatic diamine structure containing fluorine and sulfone, R2 is another aromatic diamine structure, and n:m=(0-400):1. The film has excellent optical transparency, colorless transparency of the film with great thickness (greater than or equal to 100 mu m) can be realized, the initial light-transmitting wavelength is below 300nm, and the light transmittance in a visible region is greater than or equal to 90%; and meanwhile, the film shows excellent heat resistance and mechanical property, and has important application values in the manufacturing of the photoelectric devices such as a solar battery, a display, an electronic book, an electronic label, a photoelectric sensor and the like.

The invention relates to mixed ionic liquid formula solution, which consists of an ionic liquid A, an ionic liquid B and a mixed solvent C, wherein the positive ion of the ionic liquid A is the N,N-dialkyl imidazole positive ion or the N,N,N,N-tetra alkyl quaternary amine positive ion, while the negative ion thereof is the monobasic carboxylic negative ion; the positive ion of the ionic liquid B is the protonated alkylamine positive ion, while the negative ion thereof is the monobasic or binary or ternary carboxylic negative ion; and the mixed solvent C is aqueous solution of water, polyethylene glycol, polyglycol ether, propylene carbonate or tetramethylene sulfone. The mixed ionic liquid formula solution of the invention is strong base-weak acid and weak base-weak acid mixed salt solution, has wide pH buffering capacity, and can greenly efficiently absorb the SO2 gas in a reversible cycle mode. The mixed ionic liquid formula solution of the invention is adopted as a SO2 absorbent so that the requirement for the equipment required by SO2 absorption is simple, the operation condition of absorbing and desorbing SO2 is mild, the desulfurization efficiency is high, and the problems of waste solution and wastewater discharge and the like do not exist. The invention also discloses a preparation method for the mixed ionic liquid formula solution.

A benzoxazine polymer having improved thermal properties. The properties are improved by inserting aromatic polyamines into the monomer, such as phenylenediamine, methylenedianiline, oxydianiline, diaminodiphenylsulfone, 2,2-bis(4-[aminophenoxy]phenyl)propane, 4,4'-oxydianiline, 4,4'-diaminodiphenyl sulfone, and diaminobenzanilide, to introduce internal benzoxazine groups that are crosslinking sites. The improved polymers can be converted into molding compounds, towpregs, and prepregs by being compounded with reinforcing fibers.

The present invention relates to a novel chemically amplified photoresist, which is sensitive to wavelengths between 300 nm and 100 nm, and comprises a) a novel polymer comprising a sulfone group pendant from a polymer backbone that is insoluble in an aqueous alkaline solution and comprises at least one acidic moiety protected with acid labile group, and b) a compound capable of producing an acid upon irradiation. The invention also relates to a process of imaging the novel positive photoresist composition.

The invention discloses a new preparation method of 4,4-dichlorodiphenyl sulfone. The method comprises the following steps: 1) through using AlCl3 as a catalyst, and chlorobenzene and thionyl chloride as reaction raw materials, performing a Friedel-Crafts reaction at 25-35 DEG C, then hydrolyzing the mother liquor obtained through the Friedel-Crafts reaction, refluxing at 95-100 DEG C for 45-60 minutes, cooling the obtained mother liquor to less than 20 DEG C after refluxing to obtain an organic phase and an aqueous phase; 2) performing reduced pressure distillation on the organic phase, centrifuging, washing the obtained product to be neutral and be used as a product A for later use, wherein the main component of the product A is 4,4-dichlorodiphenyl sulfoxide; and 3) through using the product A and the oxidant hydrogen peroxide as raw materials and acetic acid as satalytic solvent, carrying out an oxidation reaction on the main component 4,4-dichlorodiphenyl sulfoxide of the product A to obtain crude 4,4-dichlorodiphenyl sulfone. Therefore, the existing synthesis method of 4,4-dichlorodiphenyl sulfone is changed, the production cost of 4,4-dichlorodiphenyl sulfone is low, the product quality is good and the reaction time is short.

The invention discloses a method for preparing 4.4-dichlorodiphenyl sulfone by using sulfoxide oxidation. The method comprises the following steps of: (1) performing Frieldel-Crafts reaction at the temperature of 25-35 DEG C by taking AlCl3 as a catalyst and chlorobenzene and thionyl chloride as reaction raw materials; next, hydrolyzing mother liquor after the Frieldel-Crafts reaction is finished; refluxing at the temperature of 95-100 DEG C for 45-60 minutes after hydrolysis is finished; cooling to be below 20 DEG C to divide into an organic phase and a water phase after refluxing is finished; performing reduced pressure distillation and centrifugal washing on the organic phase to be neutral to serve as a product A for later use, wherein a main component in the product A is 4.4-dichlorodiphenyl sulfone; and (2) performing oxidation reaction on the 4.4-dichlorodiphenyl sulfone by taking the product A as the raw material, hydrogen peroxide as a catalyst and dichloromethane as a reaction solvent to synthesize a 4.4-dichlorodiphenyl sulfone rough product. Thus, the method has the advantages of mild reaction conditions, high product quality and low three wastes (waste water, waste gas and industrial residues).

A polymerizable polymeric photoinitiator according to Formula (I):

wherein:

• • PL represents an n+m+p-functional polymeric core;
  • n and m independently represent an integer from 1 to 30;
  • p represents an integer from 0 to 10;
  • o is 0 or 1;
  • INI represents a group selected from the group consisting of a benzophenone, a thioxanthone, a carbazole, a anthraquinone, a camphor quinone, an α-hydroxyalkylphenone, an α-aminoalkylphenone, an acylphosphine oxide, a bisacyl phosphine oxide, an acylphosphine sulfide, a phenyl glyoxalate, a benzoin ether, a benzyl ketal, an α-dialkoxyacetophenone, a carbazolyl-O-acyl-oxime, an α-haloarylketone and an α-haloaryl sulfone;
  • L₃ and L₄ represent a substituted or unsubstituted divalent linking group comprising 1 to 14 carbon atoms;
  • A represents a radically polymerizable functional group selected from the group consisting of an acrylate, a methacrylate, a styrene, an acryl amide, a methacryl amide, a maleate, a fumarate, an itaconate, an vinyl ether, an allyl ether, an allyl ester, a maleimide, a vinyl nitrile and a vinyl ester; and
  • R4 represents a substituted or unsubstituted alkyl group.

Radiation curable compositions containing the polymerizable polymeric photoinitiator and methods for preparing the polymerizable polymeric photoinitiator are also disclosed.

Cleaning compositions suitable for cleaning microelectronic structures having silicon dioxide, low-k or high-k dielectrics and copper or aluminum metallizations contain an oxidizing agent and a polar organic solvent selected from amides, sulfones, sulfolenes, selenones and saturated alcohols, and optionally other components.

The invention discloses a preparation method for sulfoxide and sulphone. The preparation method comprises the following steps: conducting contact reaction on thioether and hydrogen peroxide, and catalyst in a fixed bed reactor, wherein the mole ratio of thioether and hydrogen peroxide is 1:0-1.5, the space velocity of the reaction system is 5-100, the reaction temperature ranges from normal temperature to 100 DEG C, the reaction pressure is 0.1-1.0 MPa, and the catalyst is obtained from one or more titaniferous molecular sieve raw powder or formed titaniferous molecular sieve. The method has the advantages of convenient operation, mild reaction conditions, easy separation, high product yield and the like, and the utilization rate of oxidant hydrogen peroxide can be greatly improved.

Cleaning compositions suitable for cleaning microelectronic structures having silicon dioxide, low-k or high-k di-electrics and copper or aluminum metallizations contain a polar organic solvent selected from amides, sulfones, sulfolenes, selenones and saturated alcohols and a strong alkaline base.

The invention relates to a lithium-ion battery electrolyte and a lithium-ion battery. The lithium-ion battery electrolyte includes lithium salt, an organic solvent and additives, wherein the organic solvent is a mixed solvent of sulfones and/or sulfoxides and other organic solvents; the mass ratio of sulfones and/or sulfoxides to other organic solvents ranges from 0.1 to 1:1; the additives include a film-forming additive, an overcharge protection additive and an anode protection additive. The lithium-ion battery electrolyte provided by the invention can greatly prolong the cycle life of the lithium-ion battery at a high voltage of over 4.85 V and can suppress battery bulging. The lithium-ion battery using the lithium-ion battery electrolyte provided by the invention does not explode or fire when being stabbed in a fully-charged state and is highly safe.

A lithium ion secondary battery comprising: a positive electrode, a negative electrode, a separator interposed between the positive and negative electrodes, and an electrolyte prepared by dissolving a lithium salt in a non-aqueous solvent, wherein the separator comprises a porous film layer containing basic solid particles and a composite binder, the porous film layer is adhered to at least one surface of at least one of the positive and negative electrodes, the composite binder comprises a primary binder and a secondary binder, the primary binder comprises polyether sulfone and the secondary binder comprises polyvinylpyrrolidone.

An inexpensive and durable polyelectrolyte composition includes both an aromatic polymer containing carbonyl linkages and/or sulfonyl linkages in the backbone chain and bearing cation-exchange groups and a fused salt exhibits a high ionic conductivity even in the absence of water or a solvent. The aromatic polymer is preferably an aromatic polyether sulfone comprising specific structural units and bearing cation-exchange groups, an aromatic polyether ketone comprising specific structural units and bearing cation-exchange groups, an aromatic polyether sulfone block copolymer consisting of at least one hydrophilic segment bearing cation-exchange groups and at least one hydrophobic segment free from cation-exchange groups, and/or an aromatic polyether ketone block copolymer consisting of at least one hydrophilic segment bearing cation-exchange groups and at least one hydrophobic segment free from cation-exchange groups. The use of such a block copolymer as the aromatic polymer gives polyelectrolyte compositions which are excellent in maintenance of structure even at high temperature.

Thermoplastic polymer mixture (M) comprising at least one poly(aryl ether ketone) (P1), at least one poly(arylene sulfide) (P2), and between 0 and 25 wt. % of the total weight of the thermoplastic mixture (M), of a thermoplastic polymer material (P3) consisting of (i) at least one poly(biphenyl ether sulfone) (P3a), and/or (ii) at least one poly(ether imide) (P3b), and/or at least one poly(ether imide sulfone) (P3c), wherein: the combined weight amount of the poly(aryl ether ketone) (P1) and the poly(arylene sulfide) (P2), based on the total weight of the polymer mixture (M), is of at least 30%, and the weight amount of the poly(aryl ether ketone) (P1), based on the combined weight of the poly(aryl ether ketone) (P1) and the poly(arylene sulfide) (P2), is of at most 90%.

The invention discloses a synthetic process for efficiently and continuously producing 4,4-dichlorodiphenyl sulfone, which comprises the following steps: carrying out Friedel-Crafts acylation on thionyl chloride and excessive chlorobenzene under the action of a lewis acid catalyst, carrying out pyrohydrolysis and adding chlorobenzene to carry out layering after the reaction is finished, adding anoxidizing agent into a sulfoxide organic layer to carry out oxidization, adding activated carbon to carry out decoloration and filtering; cooling filtrate and carrying out rejection filtration to obtain 4,4-dichlorodiphenyl sulfone. The synthetic process has the advantage that chlorobenzene not only is a raw material, but also is a reaction solvent, so that cross use of various solvents is avoided. Particularly, use of a great amount of acetic acid used as an oxidation reaction solvent is avoided, and corrosion to equipment and environmental pollution are avoided. In the integral process flow,separation and extraction of an intermediate 4,4-dichlorodiphenyl sulfoxide are avoided, so that production time of the product is greatly shortened, and production cost is saved. By using hydrogen peroxide, acetic acid and concentrated sulfuric acid as mixed oxidizing agents, oxidization capacity of hydrogen peroxide is greatly improved, yield and purity of the product are greatly improved, yield of the product reaches 90% or more, and purity of the product is greater than 99.8%.

A method and apparatus for upgrading a hydrocarbon feedstock is provided. The method includes the steps of (a) supplying a hydrocarbon feedstock to an oxidation reactor, wherein the hydrocarbon feedstock is oxidized in the presence of a catalyst under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock; (c) separating the hydrocarbons and the oxidized sulfur compounds by solvent extraction; (d) collecting a residue stream that includes the oxidized sulfur compounds; and (e) supplying the residue stream to a deasphalting unit.

Azo compounds represented by formula (1) or (2) (In the formulas, A represents a phenyl group or naphthyl group that has at least 1 substituent. R₁-R₄ represent a hydrogen atom, lower alkyl group or lower alkoxy group, with at least one of R₁-R₄ being a lower alkoxy group that has a sulfone group. X represents an optionally substituted amino group, optionally substituted benzoylamino group, optionally substituted phenylamino group, optionally substituted phenyl azo group or optionally substituted naphthotriazole group) and salts thereof.

The invention discloses a preparation method of high-purity mannan oligosaccharide. The preparation method comprises the steps of 1, producing a mannan oligosaccharide mixture through enzymolysis conversion; 2, carrying out centrifugal separation: separating enzymatic hydrolysate through a centrifugal machine; 3, carrying out ceramic membrane filtration: filtering centrifugate through a ceramic membrane group as precision separation to remove protein, starch and polysaccharide substances; 4, carrying out ion exchange refining: desalting, decoloring and deodorizing filtrate through a mannan oligosaccharide ceramic membrane; 5, carrying out 2000 molecular weight ultrafiltration: ultrafiltering ion exchange refining liquid through a polyether sulfone-polyamide composite membrane with interception as Dalton to obtain a polymerization degree; 6, carrying out nanofiltration: filtering sugar liquid through a ceramic membrane, ion exchange refining and an ultrafiltration membrane; and 7, carrying out spray drying: preheating a nano-filtered concentrated solution, and drying in a spray drying tower. The dried product contains more than 95% of mannan oligosaccharide, and has an obvious function of multiplying bifidobacterium; meanwhile, the product, as a most promising substitute, can reduce harmful bacteria.

The invention discloses a method for preparing an asymmetric nanofiltration membrane by blending polyether sulfone and sulfonated polysulfone high polymers. A blending nanofiltration membrane with an asymmetric structure is prepared in one step by the nanofiltration membrane through a phase transformation method. The method comprises the following steps of: preparing casting membrane liquid, namely mixing the polyether sulfone, the sulfonated polysulfone high polymers, an additive and a solvent to prepare the casting membrane liquid; and forming a membrane by the phase transformation method, wherein the membrane comprises a flat membrane and a hollow fibrous membrane. The interception rate of the nanofiltration membrane to 0.5 to 1.5 g/L sodium chloride and 0.5 to 1.5 g/L sodium sulfate under the operating pressure of between 0.1 and 0.8 MPa is between 20 and 95 percent, the interception rate of the nanofiltration membrane to polyethylene glycol with the relative molecular mass of between 600 and 2,000 is between 40 and 99.9 percent, and the pure water flux of the membrane is between 10 and 250 L/(m2hbar). The asymmetric nanofiltration membrane of the invention has the advantages of high strength and toughness, high compactness resistance, chlorine resistance and high-temperature resistance, and can be applied to aspects of water treatment, wastewater treatment, material separation and the like.

This invention is related to the interface modified method of aromatic fiber reinforced poly phthalazinone ehter sulfone ketone (PPESK) compound, using low-temperature plasma technology. The processed conditions are as follows: the atmosphere is oxygen, nitrogen, air, free ammonia or argon, the power is 10-400W, the time is 1-30 minutes, and the atmospheric pressure in the processing cavity is low pressure of 1-100Pa, normal pressure or high pressure of 1.01*105-106Pa. Etching the surface of Armoc aromatic fiber and modifying it by grafting, impregnating the modified Aromc aromatic fiber and the PPESK emulsion of 5-50% part by weight to prepare the prepreg of one-way fiber reinforced PPESK compound, and then preparing the said compound by using hot-pressed molding technology. The modified Aromc aromatic and the PPESK base can form a good interface layer, furthest realize the integrated performance of the compound, which is capable to meet the operating requirements of heat resistance and implement commercial processes in batch, continuity and large scale.

Phase separated blends of polyaryl ether ketones, polyaryl ketones, polyether ketones, polyether ether ketones and mixtures thereof with at least one polysulfone etherimide, wherein the polysulfone etherimide has greater than or equal to 50 mole % of the polymer linkages contain at least one aryl sulfone group are described. Such blends have improved load bearing capability at high temperature. In another aspect a high crystallization temperature, especially at fast cooling rates, is achieved.

Compounds which modulate the CB2 receptor are disclosed. Compounds according to the invention bind to and are agonists of the CB2 receptor, and are useful for treating inflammation. Those compounds which are agonists are additionally useful for treating pain.

Provided is a separation membrane module which is suitable for filtration of oil-containing wastewater. The separation membrane module for oil-containing wastewater treatment separates water-insoluble oil from oil-containing wastewater that has high turbidity and/or high temperature. The separation membrane module for oil-containing wastewater treatment is characterized by using a hollow fiber membrane which is composed of an alkali-resistant porous membrane selected from polytetrafluoroethylene (PTFE), polysulfone (PSF), and polyether sulfone (PES) and which has a tensile strength of 30 N or more, and characterized in that each of the hollow fiber membrane and an end-sealing member of the hollow fiber membrane has a heat distortion temperature of 100° C. or higher.

Processes for preparing block copolymers and the block copolymers prepared therefrom comprising at least two types of homoblock, all belonging to the polysulfone family, wherein each of the said homoblocks has an identical or different molecular weight of at least 1000 and comprises at least 5% of the overall weight of the block copolymer, and wherein the block copolymer has a molecular weight of at least 2000, the process steps comprising preparing each of the aforesaid homoblocks by reacting at least one aromatic diol with at least one aromatic dihalo compound, one of which contains at least one sulfone group, in at least one aprotic solvent in the presence of at least one alkali, optionally in the presence of an azeotropic agent and then reacting the aforesaid homoblocks together in at least an aprotic solvent, optionally followed by end-capping said block copolymer. The invention also relates to the block copolymers themselves, which are useful for molding, extrusion and can also be used as compatibilizers for their high molecular weight homologues.