65 results about "Oxepane" patented technology

An ink composition including a cationically polymerizable compound having a styryl or α-methylstyryl group such as 4-methylstyrene and a photocationic polymerization initiator. the ink composition preferably further includes another cationically polymerizable compound having at least one group selected from oxirane and oxetane groups.

Provided are a liquid-crystal compound and a liquid-crystal composition containing the compound, of which the advantages are that they show nematic hybrid orientation on a rubbed TAC substrate, they are polymerizable in open air and they readily give a polymer having a high degree of polymerization even when exposed to a relatively small total quantity of light. The films formed by photopolymerizing them keep nematic hybrid orientation. The compound is represented by formula (1):

wherein R¹ is a hydrogen or an alkyl; R² is a hydrogen, —OCF₃, etc.; A¹ is a 1,4-phenylene, etc.; A² and A³ are independently a 1,4-cyclohexylene, a 1,4-phenylene, etc.; X¹ is a single bond, —O—, etc.; X² and X³ are independently a single bond, —COO—, —C≡C—, —CONH—, etc.; m is an integer of from 0 to 20; and n is 1 or 0.

The in vitro polymerization of silica, silicone, non-silicon metalloid-oxane and metallo-oxane polymer networks, by combining a catalyst and a substrate to polymerize the substrate to form silica, polysiloxanes, polymetalloid-oxanes polymetallo-oxanes (metal oxides), polyorganometalloid oxanes, polyorganometallo oxanes, and the polyhydrido derivatives thereof, at about neutral pH. The nanostructure-directing catalysts have a nucleophilic functionality and a hydrogen-bonding acceptor group, and include: silicateins, enzymes that work by a mechanism functionally related to that of the silicateins; self-assembling peptides related to those synthesized and demonstrated capable of acting as biomimetic substitutes for the silicateins; non-peptide-based synthetic polymers containing a nucleophilic group and a hydrogen bonding amine such that the polymer functions by a mechanism of action related to that of the silicateins; materials having such chemical functionality as a nucleophilic group and or a hydrogen bonding amine which, acting in concert with nanoconfinement and or chemical functionality of the surface or matrix to which the functionality is attached, acts catalytically by a mechanism related to that of the silicateins; and small-molecule non-polymeric biomimetic catalysts that operate by the same mechanism as silicateins. The substrate is selected from groups consisting of silicon alkoxides, non-silicon metalloid alkoxides or metal alkoxides, and any organic, organometallic or hydrido derivatives of the foregoing; inorganic and organic oxygen-containing chelates of silicon, non-silicon metalloids or metals and any organic, organometallic or hydrido derivatives of the foregoing; and inorganic and organic esters of the hydoxides of silicon, non-silicon metalloids or metals and any organic, organometallic or hydrido derivatives of the foregoing; and inorganic and organic hydolyzable salts, complexes or conjugates of the hydroxides of silicon, non-silicon metalloids or metals and any organic, organometallic and hydrido derivates of the foregoing.

A high refractive index layer of a cured first coating composition comprising (A) metal oxide fine particles selected from among titanium oxide, aluminum oxide, zirconium oxide, cerium oxide, iron oxide, tin oxide, and compound oxides thereof and (B) a compound having an acrylic, methacrylic, vinyl or styryl group, and a low refractive index layer of a cured second coating composition comprising (D) voided silica-base inorganic oxide fine particles and (C) a compound having at least two epoxy and/or oxetane groups are successively stacked on a substrate to form an antireflection film.

The present invention relates to a tyre comprising at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising: (a) 100 phr of at least one elastomeric polymer; (b) from about 0.1 phr to about 120 phr of at least one reinforcing filler; (c) from about 0.01 phr to about 20 phr of at least one oxetane derivative; and (d) from about 0.01 phr to about 10 phr of at least one amino acid. Preferably, said structural element is selected from: tread band, tread underlayer, bead filler, sidewalls, and sidewall inserts.

The present invention provides for textiles treated with a composition comprising the reaction product of

• • e) an oxirane or oxetane compound comprising at least two oxirane or oxetane groups; and
  • f) an amino silane having the formula:

N(H)(R¹)R²Si(OR³)_3-a-b-c(OR⁴)_a(R⁵Si(OR⁶)_d(R⁷)_e)_bR⁸_c

• with R¹ is chosen from the group consisting of H or a monovalent hydrocarbon radical containing one to 20 carbon atoms;
• R² and R⁵ are independently selected from a group consisting of oxygen or a divalent linear or branched hydrocarbon radical consisting of 1-60 carbons;
• R⁴ is a hydrocarbon radical that contains 3 to 200 carbon atoms;
• R³, R⁶, R⁷, and R⁸ and are each independently selected from the group of monovalent linear or branched hydrocarbon radicals having from 1 to 200 carbon atoms;
• the subscript b is zero or a positive number and has a value ranging from 0 to 3;
• the subscripts a, and c are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (a+b+c)≦3; and

the subscripts d and e are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (d+e)≦3, wherein the treated textile has enhanced wet strength.

The present invention provides for textiles treated with a composition comprising the reaction product of e) an oxirane or oxetane compound comprising at least two oxirane or oxetane groups; and f) an amino silane having the formula: N(H)(R¹)R²Si(OR³)_{3−a−b−c}(OR⁴)_a(R⁵Si(OR⁶)_d(R⁷)_c)_b R⁸_c with R¹ is chosen from the group consisting of H or a monovalent hydrocarbon radical containing one to 20 carbon atoms; R² and R⁵ are independently selected from a group consisting of oxygen or a divalent linear or branched hydrocarbon radical consisting of 1-60 carbons; R⁴ is a hydrocarbon radical that contains 3 to 200 carbon atoms; R³, R⁶, R⁷, and R⁸ and are each independently selected from the group of monovalent linear or branched hydrocarbon radicals having from 1 to 200 carbon atoms; the subscript b is zero or a positive number and has a value ranging from 0 to 3; the subscripts a, and c are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (a+b+c)≦3; and the subscripts d and e are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (d+e)≦3, wherein the treated textile has enhanced wet strength.

The present invention relates to novel azoles, novel antiviral active components of the general formulas 1A and 1B, pharmaceutical composition, antiviral medicament, method for prophylaxis and treatment of viral diseases, particularly caused by hepatitis C viruses (HCV). In general formulas 1A and 1B

wherein: solid lines with accompanying dotted lines () represent ordinary bond or double bond, provided that one of them is an ordinary bond, the other one is double bond; X and Y accept various meanings, one of them is—nitrogen, the other—oxygen, sulfur or NH group; R¹ and R²—optionally the same radicals selected from 2-(R)- and (S)-substituted N-acyl pyrrolidine derivatives; N-methyl-N-[2-(R) and (S)-substituted 2,2-disubstituted acetamides; methyl[2-(R) and (S)-substituted ((methyl)amino)-(1-oxobutan-2-yl)-2-(R)-] and (S)-iso-propyl)-carbamates. A represents aliphatic C₂-C₈ biradical; dioxane, cyclo- and bicycloaliphatic, alkyloxyalkyl, alkyloxyalkylenoxyalkyl, alkenyloxyalkyl, alkynyloxyalkyl biradicals and their thioanaloges; aryl and thiophene alkynylcycloalkyl, alkynyldioxane, alkynylaryl, alkylthiophene, alkenylthiophene and alkynylthiophene, alkyloxyaryl, alkenyloxyaryl, alkynyloxyaryl, alkylthioaryl, alkenylthioaryl, alkynylthioaryl, cycloalkylthiophene, aryldioxane and thiophenyldioxane biradicals. B represents: aliphatic C₂-C₈ radical, including 1, 2 or 3 triple C≡C bonds; aryl and thiophene, alkynylcycloalkyl, alkynyldioxane, alkynylaryl, alkylthiophene, alkenylthiophene and alkynylthiophene, cycloalkylbenzene, 4-cycloalkylbiphenyl, bicycloalkylbenzene, 4-bicycloalkylbiphenyl, cycloalkylthiophene, aryldioxane and thiophenyldioxane radicals.

The invention discloses a synthetic method of an atorvastatin calcium intermediate. The synthetic method comprises the following steps: preparing [(4R, 6S)-6- brooethyl-2,2-diemthyl-1,3-dioxane-4-group] tert-butyl acetate (5) by (3S)-4-bromine-3-hydroxyl ethyl butyrate through condensation, asymmetric biological catalytic reduction and hydroxyl protection; and preparing an atorvastatin calcium intermediate [(4R, 6S)-6-(2-aminoethyl)-2,2-dimethyl-1,3-dioxane-4-group] tert-butyl acetate through catalytic hydrogenation reduction of raney nickel after 5 is condensed with nitromethane under action of cuprous bromide and a nitrogen-containing compound ligand. According to the synthetic method disclosed by the invention, steps are shortened, cost is lowered, and therefore, the synthetic method is more suitable for large-scale preparation.

Base compounds including 1,3-oxazinan-6-one derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde, and their application as corrosion inhibitors with multifunctional properties serving as inhibitory/dispersant of asphaltene in production processes, transportation, refining and storage of crude oil and derivatives. The corrosion inhibitor with inhibitory/dispersant of asphaltenes properties comprises an active substance base of 1,3-oxaninan-6-ones and hydrocarbon solvents such as benzene, toluene, mixed xylenes, o-xylene, m-xylene and p -xylene, diesel, kerosene, jet fuel, alcohols, aliphatic branched and unbranched alcohols containing from 3 to 10 carbon atoms, such as isopropanol, butanol and pentanol, and mixtures of hydrocarbon solvents with aliphatic branched or unbranched liquid fuels. In addition, a process for obtaining 1,3-oxazinan-6-ones derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde is described.

The invention relates to a photosensitive resin composition, photocurable pattern and image display device, more specifically, the abovementioned photosensitive resin composition contains an alkali-soluble resin (A), a photopolymerizable compound (B), a photopolymerization initiator (C), a solvent (D) and an additive (E), the abovementioned alkali-soluble resin (A) contains specific resin, the specific resin contains a repetitive unit containing an oxetane functional group and a repetitive unit represented by the following chemical formula 1, and thus excellent adhesion, chemical resistance and storage stability are achieved due to high solidification density. In the chemical formula 1, R1 is hydrogen atom or methyl, and R2 is an alkyl group with 1 to 6 hydrogen atoms or carbon atoms.

A radiation sensitive composition comprising a colorant, an alkali-soluble resin, a polyfunctional monomer and a photopolymerization initiator. The alkali-soluble resin is a copolymer of (b1) at least one first unsaturated compound selected from the group consisting of an unsaturated carboxylic acid, an unsaturated carboxylic anhydride and an unsaturated phenolic compound and at least one second unsaturated compound selected from the group consisting of (b2) an unsaturated compound having an oxetane skeleton and (b3) an unsaturated compound having a tetrahydrofuran skeleton. The radiation sensitive composition is used to form a colored layer.

The invention discloses anti-wear paint applied to suitcase and a preparation method thereof and relates to the technical field of paint. The anti-wear paint is prepared from the following raw materials in parts by weight: 65 to 85 parts of epoxy resin, 35 to 45 parts of tung oil, 25 to 35 parts of acetic ether, 20 to 25 parts of modified silicon carbide, 15 to 20 parts of modified nano silicon dioxide, 10 to 12 parts of modified nano titanium oxide, 10 to 12 parts of modified quartz powder, 5 to 8 parts of trioxane, 5 to 8 parts of barium sulfate, 3 to 6 parts of polymethyl methacrylate, 3 to6 parts of zinc borate, 1 to 4 parts of sodium phytate, 1 to 4 parts of curing agent, 1 to 4 parts of methyl isothiazolinone, 0.6 to 1.2 parts of sodium dodecyl benzene sulfonate, 14 to 16 parts of aid and 25 to 35 parts of water. The anti-wear paint disclosed by the invention has the advantages of excellent wear resistance and ageing resistance.

The present invention relates to an improved process for the synthesis of enantiomerically pure 3-phenyl-3-hydroxypropylamine of formula I; more particularly the present invention relates to the said process using styrene; the synthetic strategy features a Sharpless asymmetric dihydroxylation (SAD) route to the target compound, using styrene, a readily accessible starting material gives the optically pure dihydroxy compound (ee >97%; the selective monotosylation of primary alcohol, nucleophilic displacement by cyano and subsequent reduction to amino group furnishes the desired 3-phenyl-3-hydroxypropylamine in enatiomerically pure form, a key intermediate in the synthesis of variety of oxetine related anti-depressant drugs.

The invention discloses a biochemical total synthetic method for protosappanin A and derivatives thereof. The synthetic method for protosappanin A and derivatives thereof comprises the main steps: taking a dibenzo[d,f]oxepane-3-one compound as a raw material, performing cyan addition on carbonyl, performing reduction, Tiffeneau-Demjanov rearrangement, deprotection and other reactions, so as to synthesize the protosappanin A derivatives with the total yield of 85% or more. Chemical total synthesis of protosappanin A compounds is developed for the first time. The synthetic method is simple to operate, reduced in synthetic difficulty because routine chemical reaction methods are employed, mild in reaction conditions, friendly to environment, simple in post-treatment and high in yield, and has good industrialization production prospect.

Salts of 2-[({4-[(2,2-dimethyl-1,3-dioxan-5-yl)methoxy]-3,5-dimethylpyridin-2-yl}methyl)sulfinyl]-1H-benzimidazole, and crystals and amorphous forms thereof.

The purpose of the present invention is to provide a method for producing a polyacetal copolymer, in which any disturbances in mass production less affect the polymerization. The method is for producing a polyacetal copolymer from trioxane as a main monomer (a) and a comonomer (b) copolymerizable therewith, and comprises using a polymerization catalyst (c) obtained by mixing a heteropolyacid (B) represented by general formula (1) with a heteropolyacid salt (A) represented by general formula (2) in a mass ratio of 10>=(A)/(B)>=0.2. H<m>[M<1]<x>*M<2><y>O<z>]*nH<2>O ...(1), M<3><m>[M<1><x>*M<2><y>O<z>]*nH<2>O... (2). [In formulae (1) and (2), M<1> represents one or two central elements selected from between P and Si, M<2> represents one or more coordination elements selected from among W, Mo,and V, M<3> represents an alkali metal, x is an integer of 1-10, y is an integer of 6-40, z is an integer of 10-100, m is an integer of 1 or larger, and n is an integer of 0-50.]

The invention relates to a catalyst for preparing monohydric alcohol and dihydric alcohol by hydrogenation of dimethyl substituted 1,3-dioxane. The catalyst is characterized by consisting of an active metal, a solid acid and an adhesive Al2O3, wherein the mass percentage of the active metal is 8-20%; the mass percentage of the solid acid is 20% and the balancing being the adhesive Al2O3. High conversion rate and high selectivity of a reaction substrate are realized by using the solid hydrogenation catalyst with double active sites of the solid metal and acid and by using a hydrogenation reaction.