639 results about "Metallole" patented technology

A composition of matter comprising an amine acylated with a hydrocarbyl group substituted carboxylic acylating agent containing an average of from 1.3 to 1.6 groups derived from α,β-unsaturated carboxylic compounds per Mn of the hydrocarbyl group, wherein the hydrocarbyl group has Mn determined by GPC ranging from 1500 to 3000, the amine comprises polyamine bottoms and said acylated amine has total base number (TBN) ranging from 17 to 35. A method for preparing the composition, lubricating oils containing the composition and, in another embodiment, lubricating oil compositions of this invention further comprising a metal overbased sulfonate detergent.

Aluminum hydroxide fibers approximately 2 nanometers in diameter and with surface areas ranging from 200 to 650 m2 / g have been fount to be highly electropositive. When dispersed in water they are able to attach to and retain electronegative particles. When combined into a composite filter with other fibers or particles they can filter bacteria and nano size particulates such as viruses and colloidal particles at high flux through the filter. Such filters can be used for purification and sterilization of water, biological, medical and pharmaceutical fluids, and as a collector / concentrator for detection and assay of mirobes and viruses. The alumina fibers are also capable of filtering sub-micron inorganic and metallic particles to produce ultra pure water. The fibers are suitable as a substrate for growth of cells. Macromolicules such as proteins may be separated from each other based on their electronegative charges.

A colored anti-fog mirror that emits reflected light in response to incident light, the colored anti-fog mirror comprising a substrate, a hydrophilic functional layer containing a photocatalytic substance, and a metallic reflecting film provided between the substrate and the hydrophilic functional layer, wherein a material of the metallic reflecting film and a thickness of the hydrophilic functional layer are set such that the reflected light has a spectral reflection spectrum having a maximum reflectance in the visible region over 510 nm and not more than 600 nm.

Novel polynuclear organometallic complexes useful as catalysts for the reversible deshydrogenation of alkanes and alkane group are disclosed. The novel compounds comprise a first transition, a second transition metal p-bonded to an ?5-aromatic ligand, and a pincer ligand. The pincer ligand comprises a 6p-electron aromatic ring having at least 2 ring atoms in an 1, 3 relationship bonded each to a neutral Lewis base through a bridge, the bridge being a diradical. The pincer ligand binds the first transition metal through each of the Lewis bases and through the ring atom adjacent to both Lewis bases and p-coordinates the second transition metal through all aromatic ring atoms. The first transition metal may also bond to 2 or 4 hydrogen atoms.

An acidic aqueous hydrogen peroxid solution is provided, with improved disinfectant activity. Concentrated solutions preferably contain up to about 8% and as-used concentrations contain about 0.5% peroxide. The solution also contains from 0.1 to 5.0% of at least one acid compound, e.g. phosphoric and / or a phosphonate with from 1 to 5 phosphonic acid groups, and from 0.02 to 5% of at least one anionic surfactant. The surfactant is selected from C8 to C16-alkyl aryl sulphonic acids, sulphonated C12 to C22 carboxylic acids, C8 to C22-alkyl diphenyl oxide sulphonic acids, naphthalene sulphonic acids, C8 to C22 alkyl sulphonic acids, and alkali metal and ammonium salts thereof, and alkali metal C8 to C18 alkyl sulphates, and mixtures thereof. Most preferably the solution has an emulsifier, e.g. a salt of an alkylated diphenyl oxide. The solution may also contain corrosion inhibitors and / or lower alcohols.

The present invention at first prepares a penta-alkyl DTPA and then processes a regioselective hydrolysis over the penta-alkyl DTPA while using a metal ion as a catalyst to obtain a tetra-alkyl DTPA, where, by the above two steps, a monoreactive DTPA derivative is manufactured.

A composition comprises a protein, a polyol, and a metal. The protein is stabilized by the polyol and the metal, and is protected from denaturing when in contact with an organic solvent. The polyol may be a hydrocarbon containing two or more hydroxyl groups (—OH) bonded to carbon. The metal may be divalent.

The invention describes a process for tetramerisation of olefins wherein the product stream of the process contains more than 30% of the tetramer olefin. The process includes the step of contacting an olefinic feedstream with a catalyst system containing a transition metal compound and a heteroatomic ligand.

The invention is a polymerization process for ethylene copolymers having a density less than 0.915 comprising contacting ethylene, one or more alpha-olefin monomer, and optionally one or more diene monomer, with a catalyst composition comprising the reaction product of at least one organometallic Group 4 metallocene compound derived from a bridged, fused-ring ligand containing biscyclopentadienyl hafnocene, said bridge being a substituted or unsubstituted carbon or silicon atom connecting the biscyclopentadienyl ligands, and a salt of a Group 13 element anionic complex having halogenated aromatic ligands in an essentially tetrahedral structure wherein the aromatic groups are polycyclic fused or pendant aromatic rings. The process is particularly suitable for the preparation of high comonomer content and high molecular weight ethylene-alpha-olefin plastomers and ethylene-propylene or ethylene-propylene-diene monomer elastomers.

The invention provides a catalyst for converting diisononyl phthalate, diisooctyl phthalate, dibutyl phthalate and other long-chain esters into corresponding 1, 2-cyclohexane dicarboxylic acid binary ester through hydrogenation. The catalyst for converting the diisononyl phthalate, the diisooctyl phthalate, the dibutyl phthalate and other long-chain esters into corresponding the 1,2-cyclohexane dicarboxylic acid binary ester through the hydrogenation consists of main active ingredients, additives and carriers, wherein the main active ingredients are noble metal Ru and Pd; the additives are Fe, Co, Ni, Cu and other metals or oxides; and macroporous Al2O3, ZrO2, TiO2 and the like are selected as the carriers. Under certain temperature, certain hydrogen pressure and the action of the catalyst, the diisononyl phthalate, the diisooctyl phthalate, the dibutyl phthalate and other long-chain esters in a trickle bed reactor can be converted into the corresponding the 1, 2-cyclohexane dicarboxylic acid binary ester with high activity and high selectivity.

A thermal interface material comprises a polymeric elastomer material, a thermally conductive filler, and a coupling agent, along with other optional components. In one exemplary heat transfer material, a coupling agent having the formula:where Y is either a cyclic structure or Y is represented by Formula II:where:a=1 or 2b=2 or 3R1 contains at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl groupR′2 and R″2 are independently selected from Hydrogen, a neoalkoxy group, an ether group, and a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl groupX=Group four transition metal; andwhere a=1, R3 contains at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group; or where a=2, the two R3 groups independently contain at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl groups or the two R3 groups together form an alkyldiolato groupand, if Y is a cyclic structure, X is a member of the cyclic structure and the cyclic structure also contains a pyrophosphate group such as Formula II shown above.

A process for the preparation of alkylene glycols by reacting an alkylene oxide with water in the presence of at least one ionic composition of a quaternary phosphonium cation of the general formula R1R2R3R4P+Whereby each of R1, R2, R3 and R4, independently, may be an alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl group having from 1 to 10 carbon atoms, each of which may carry one or more substituents, or be attached to a polymer and an anion other than metalate or halogen.

A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition and topmost layer comprise one or more aqueous-soluble salts of multivalent metal cations, a cationic polyelectrolyte comprising amidine moieties, and one or more second polymer which is distinct from the cationic polyelectrolyte and which is selected from the group consisting of a polyamide-epichlorohydrin, a polyamine solution polymer, and a waterborne or water-dispersible polyurethane. The topmost layer is advantageously at a solid content of from 0.1 to 5 g / m2, and comprises from 30-90 wt % of the one or more aqueous soluble salts of multivalent metal cations, at least 0.01 g / m2 of the cationic polyelectrolyte comprising amidine moieties, and at least 0.005 g / m2 of the second polymer which is distinct from the cationic polyelectrolyte comprising amidine moieties.

The present invention relates to a process for the efficient preparation of enantiomerically enriched beta amino acid derivatives which are useful in the asymmetric synthesis of biologically active molecules. The process comprises an enantioselective hydrogenation of a prochiral beta amino acrylic acid derivative substrate in the presence of a transition metal precursor complexed with a chiral ferrocenyl diphosphine ligand.

The present invention provides a chemically stable pharmaceutical preparation of a benzimidazole type compound. That is, the present invention relates to a composition comprising at least one substance selected from sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, aminoalkyl methaacrylate copolymer E, arginine aspartate, hydroxypropyl cellulose and crospovidone incorporated into a benzimidazole type compound or an alkali metal salt thereof.

A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.

The present invention is directed to methods for screening for metallohydrolase inhibitors using metal binding moieties in combination with targeting moieties.

Various non-limiting embodiments of the present invention relate to photochromic materials having a metallocenyl group. More particularly, various non-limiting embodiments disclosed herein provide photochromic materials including an indeno-fused naphthopyran, such as an indeno[2′,3′:3,4]naphtho[1,2-b]pyran, and a metallocenyl group bonded to at least one available position on the indeno-fused naphthopyran. Other non-limiting embodiments disclosed herein provide photochromic composition and photochromic articles, such as but not limited to ophthalmic lens, which include the disclosed photochromic materials and method of making the same.

PCT No. PCT / EP97 / 06358 Sec. 371 Date Apr. 18, 1999 Sec. 102(e) Date Apr. 18, 1999 PCT Filed Nov. 14, 1997 PCT Pub. No. WO98 / 22484 PCT Pub. Date May 28, 1998Diphosphines of a mixed heteroarylic-arylic type, wherein the phosphine group carrying backbone is constituted by the interconnection of a five-atom heteroaromatic ring and a carbocyclic aromatic ring, forming an atropoisomeric chiral system with a C1 symmetry. Said chiral diphosphines are advantageously used as ligands for the formation of chiral complexes with transition metals, in particular Ru, Rh, Pd, Ir, Ni. The so-obtained chiral complexes are used as chiral complexes are used as chiral catalysts for stereocontrolled reactions, in particular diastereo and enantioselective reduction reactions, hydroformylation reactions, hydrosilylation reactions, hydrocyanation reactions, double-bond isomerisation reactions, other reactions of carbon-carbon bond formation.

The present invention relates to a process for the efficient preparation of enantiomerically enriched beta amino acid derivatives which are useful in the asymmetric synthesis of biologically active molecules. The process comprises an enantioselective hydrogenation of a prochiral beta amino acrylic acid derivative substrate in the presence of a transition metal precursor complexed with a chiral ferrocenyl diphosphine ligand.

A sulfonyl aromatic or heteroaromatic ring hydroxamic acid compound that inter alia inhibits matrix metalloprotease activity is disclosed as are a treatment process that comprises administering a contemplated sulfonyl aromatic or heteroaromatic ring hydroxamic acid compound in a MMP enzyme-inhibiting effective amount to a host having a condition associated with pathological matrix metalloprotease activity. A contemplated compound corresponds in structure to the formulawherein W and the R groups are defined elsewhere.

The present invention discloses a liquid high-effective disinfectant. It is formed from (wt%) 1-2% of hyamine which is the mixture of alkyl dimethyl benzyl ammonium chloride and dialkyl dimethyl ammonium chloride, 0.1-0.5% of biguanide which is one of chlorhexidine and polyhexamethylene biguanide salt or their mixture, 3-8% of aldehyde which is one of glutaraldehyde, citrial, jasminal and myristic aldehyde or mixture of more than two kinds of them, 5-10% of surfactant, 1-5% of urea, 40-50% of hydrophilic solvent, 0.1% of EDTA sodium salt, 2.5-35% of water and 0-3% of selectable components, such as aromatic compound, colouring matter and viscosity-regulating agent.

The present invention provides a chemically stable pharmaceutical preparation of a benzimidazole type compound. That is, the present invention relates to a composition comprising at least one substance selected from sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, aminoalkyl methaacrylate copolymer E, arginine aspartate, hydroxypropyl cellulose and crospovidone incorporated into a benzimidazole type compound or an alkali metal salt thereof.

A tire composition with a Shore A hardness, according to DIN 53 505 and ASTM D2240, of not less than 40 and not greater than 95 and a glass-transition temperature Tg (E″max), according to DIN 53 513 with a specified temperature sweep of −80° C. to +80° C. and a specified compression of 10+0.2% at 10 Hz, not less than −80° C. and not greater than 0° C., with improved abrasion performance, in particular for pneumatic tires, has the following composition:at least one vulcanizable diene rubber selected from natural rubbers, synthetic polyisoprene rubbers, polyisobutylene rubbers, polybutadiene rubbers (BR), and random styrene-butadiene rubbers;from 35 to 300 phr of at least one active filler selected from carbon blacks, silicas, silicon based fillers, and metal oxides, of which at least 10 phr must be carbon blacks, silicas, or some combination thereof;from 0 to 250 phr of other or further additives;from 0.1·10−3 to 42·10−3 mhr (mol per hundred parts of rubber) of a vulcanizing agent which crosslinks with a functionality>4; andfrom 0.1 to 10 phr of at least one vulcanization accelerator.

The present invention relates to a photo bleaching compositions comprising:A) from 0.5 ppm by weight, of a photo bleaching agent, said agent comprising:a) a polymeric component, said polymeric component comprising one or more polymeric compounds having an average molecular weight of from 500 to 1,000,000 wherein at least 50% of the monomers which comprise said polymeric compounds comprise one or more di-polar, aprotic groups and have a polymerizable vinyl moiety, the balance comprising monomers selected from the group consisting of acrylic acid, acrylic acid esters, acrylic acid amides, methacrylic acid, methacrylic acid esters, methacrylic acid amides, and mixtures thereof; andb) a photo bleaching component, said photobleaching component comprising a porphyrin or a phthalocyanine ring wherein said phthalocyanine ring can optionally be substituted at one or more ring positions, and said ring comprising a transition metal or cation having an oxidation state of two or greater;wherein said photo bleaching component is integrated with said polymeric component to form said photo bleaching agent and the weight ratio of polymeric component (a) to photobleaching component (b) is from 1:1 to 1000:1;B) from 0.1% by weight, of a peroxy acid bleaching compound precursor; andC) the balance carriers and adjunct ingredients.

Phenylethynyl containing imide-silanes were prepared from aminoalkyl and aminoaryl alkoxy silanes and 4-phenyletbynylphthalic anhydride in toluene to form the imide in one step or in N-methyl-2-pyrrolidinone (NMP) to form the amide acid intermediate. Controlled molecular weight pendent phenylethynyl amide acid oligomers terminated with aminoaryl alkoxy silanes were prepared in NMP from aromatic dianhydrides, aromatic diamines, diamines containing pendent phenylethynyl groups and aminoaryl alkoxy silanes. The phenylethynyl containing imide-silanes and controlled molecular weight pendent phenylethynyl amide acid oligomers terminated with aminoaryl alkoxy silanes were used to improve the adhesion between phenylethynyl containing imide adhesives and inorganic substrates (i.e. metal). Hydrolysis of the alkoxy silane moiety formed a silanol functionality which reacted with the metal surface to form a metal-oxygen-silicon (oxane) bond under the appropriate reaction conditions. Upon thermal cure, the phenylethynyl group of the coupling agent reacts with the phenylethynyl functionality of phenylethynyl containing imide adhesives and becomes chemically bonded to the matrix. The resultant adhesive bond is more durable (i.e. hot-wet environmental resistance) than adhesive bonds made without the use of the coupling agent due to covalent bond formation between the phenylethynyl containing imide-silane coupling agent or the controlled molecular weight pendent phenylethynyl amide acid oligomers terminated with aminoaryl alkoxy silanes and both the metal substrate and phenylethynyl containing imide adhesives.

Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof:the compounds are useful, for example, as additives for lubricant compositions.

The bridged metallocene compound or the olefin polymerization catalyst which comprises the compound, enables high polymerization activity in polymerizing one or more monomers selected from ethylene and α-olefins. The bridged metallocene compound contains specific substituted cyclopentadienyl and fluorenyl groups which are linked via carbon or silicon atoms. In the method for the preparation of polyolefins, one or more monomers, preferably ethylene as an essential monomer, selected from ethylene and α-olefins are copolymerized in the presence of the olefin polymerization catalyst comprising the bridged metallocene compound, so that an ethylene based polymer with an ethylene content of more than 50 mol % is obtained.

The invention discloses a catalyst for preparing m-xylylenediamine by isophthalonitrile hydrogenation under ammonia reaction conditions. The catalyst realizes the transformation of isophthalonitrile and hydrogen into m-xylylenediamine under ammonia reaction conditions and comprises a main active component, one or more auxiliary agents and a carrier. The main active component is a transition metal Ni or Co. The one or more auxiliary agents are selected from Re, Cu, Cr, Ru, Fe and their oxides. The carrier is diatomite, Al2O3 or SiO2. In a fixed bed reactor, at a certain temperature, under the action of ammonia pressure and the catalyst, the high activity and high selectivity transformation of isophthalonitrile and hydrogen into a plurality of amine products comprising m-xylylenediamine as a main product is realized.