Abstract: The present invention relates to a process for preparing polytetrahydrofuran or tetrahydrofuran copolymers by polymerization of tetrahydrofuran in the presence of a telogen and/or a comonomer over a fixed bed of an acid catalyst, in which the temperature of the polymerization mixture increases in the direction of flow through the catalyst bed.

Abstract: A process for preparing polyether polyols by reaction of the following starting materials: a) one or more alkylene oxides and, if appropriate, carbon dioxide and also b) one or more H-functional starter substances, in the presence of a catalyst, in a reaction unit having a plurality of parallel layers A, B which are microstructured so that each layer has a multiplicity of channels which are arranged parallel to one another and form a continuous flow path from one side of the plate to the opposite side of this, wherein a distribution device for introduction of the starting materials and the catalyst is provided at one end of the channels of the layers A and a collection device for the reaction mixture is provided at the other end of these is proposed.

Abstract: To provide a purification process which makes it possible to reduce the amount of an inorganic adsorbent to be used, shorten the time for separating a polyether and the inorganic adsorbent by filtration, and further reduce the amount of a metal derived from a double metal cyanide complex catalyst in a purified polyether thereby obtained. A polyether is synthesized by ring opening polymerization of an alkylene oxide with an initiator having at least one hydroxyl group, in the presence of a double metal cyanide complex catalyst, then a powder of an inorganic adsorbent containing at least 50 vol % of fine particles having a particle size of at most 26 ?m is and further containing at least 90 vol % of fine particles having a particle size of at most 44 ?m, is added to the above polyether, and a metal derived from the above double metal cyanide complex catalyst is adsorbed on the above powder, followed by separating the above powder from the above polyether.

Abstract: The present invention relates to a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymer, diester or monoester by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer and of an acidic heterogeneous catalyst based on activated sheet silicates or mixed metal oxides in a fluidized bed.

Abstract: The present invention relates to a process for producing tetrahydrofuran polymer or tetrahydrofuran copolymer by using heteropolyacid catalyst, and more particularly, to a process for producing tetrahydrofuran polymer by using hydronium ion water having a pH of 5.5 or less as a reaction initiator in the initiation step.

Abstract: A novel polymeric co-initiator is disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The polymeric co-initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks. The dendritic polymeric core is preferably a hyperbranched polymer.

Abstract: A method for making a alkyl polyethylene glycol carbonate by the step of: (a) reacting mono-alkyl polyethylene glycol (MPEG) such as MPEG having an average molecular weight of 20,000 grams per mole and a polydispersity of less than 1.1, a chloroformate such as p-nitrophenyl chloroformate, an aromatic solvent such as toluene and an amine such as tripentyl amine. And, a method for making a multi-armed polyethylene glycol carbonate by the step of: (a) reacting a multi-armed polyethylene glycol having at least one hydroxyl group, a chloroformate, an aromatic solvent and an amine.

Abstract: An ink-jet ink used to form a functional film by ejecting an ink droplet using an ink-jet system onto a non-penetrative substrate includes a compound that has an amino group and an alkylene glycol portion within a molecule and serves as a wettability enhancer. Also provided are a method of producing the ink-jet ink, a method of producing a color filter using the ink-jet ink, and a method of forming a color filter or a functional film.

Abstract: An actinic ray curable composition is disclosed, comprising and oxetane ring-containing compound and an epoxy compound, in which the oxetane ring-containing compound comprises a compound containing a single oxetane ring and a compound containing at least two oxetane rings, and the compound containing a single oxetane ring accounting for 1% to 20% by weight if the composition. There are also disclosed an ink for use in ink jet printing and an image forming method by use thereof.

Abstract: Compounds of the general formulae (I) and (II): where R1, R2 and R3 each independently of one another are H; C1-17alkyl; C3-12cycloalkyl, optionally substituted by C1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyl groups; C6-10, aryl, optionally substituted by 1-3 C1-4alkyl groups, —CN, Hal, OH, or C1-10alkoxy; C7-15phenylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-12alkenyl; C3-12alkynyl; or aromatic or aliphatic C3-12acyl; R4, R5, R6, R7, R8, and R9 each independently of one another are H; C1-17alkyl, C3-12cycloalkyl, optionally substituted by C1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyl groups; C6-10aryl, optionally substituted by 1-3 C1-4alkyl groups; C7-15phenylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-17alkenyl; C3-12alkynyl; C1-12alkoxy; or OH; for formula (1) R is C1-12alkyl; C3-12cycloalkyl, optionally substituted by C1-4alkyl groups; C4-20cycloalkyl-alkyl; optionally substituted by C1-4alkyl groups; C6-10aryl, o

Abstract: The present invention relates to a solid, acid catalyst for the preparation of polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which has a BET surface area of at least 160 m2/g and an acid center density of at least 0.05 mmol/g for pKa values of from 1 to 6, to a process for preparing it and to a process for the polymerization of cyclic ethers over this catalyst.

Abstract: Acyl-ethyleneurea terminated compounds or similar materials suitable for use as a blocking or modifying agent for improving the latency of a mixture of a hardener and a modified epoxy resin composition having increased hydroxy concentration. The compounds or materials of the invention are prepared in accordance with a preferred process by heating a dibasic acid with ethyleneurea in the presence of a basic catalyst. Alternatively, methyl esters or anhydrides of dibasic acids may be used instead of dibasic acids. Curable epoxy-based compositions treated with the compounds or materials of the invention, and processes, whereby the various novel compositions of the invention are made, are also described.

Abstract: An oxirane compound of following Formula (1), such as glycidol, is reacted in the presence of a powdered activated carbon, where necessary, with an initiator such as a polyhydric alcohol, an aliphatic alcohol, or an aliphatic carboxylic acid, to yield, for example, a polyglycidol, a polyglycidol alkyl ether, or a polyglycidol alkyl ester. wherein R1 and R2 may be the same as or different from each other and each represent one selected from hydrogen (H); a branched- or straight-chain alkyl group having one to thirty carbon atoms or an aryl group; and a functional group represented by —CH2-M, wherein M represents OH, F, Cl, Br, or —OR3, wherein R3 represents an alkyl group having one to twenty carbon atoms, allyl group, or an aryl group. A target compound can be obtained in a high yield with high quality according to this invention, from which the catalyst can be easily separated.

Abstract: A description is given of azetidine derivatives and methods for producing them, and of their use as a latent curing component for resins having functional groups which are reactive toward amino groups. The particular advantages of the curing component proposed in accordance with the invention, such as effective producibility, high environmental friendliness, and excellent storage stability of the resin/curing agent mixtures, make these azetidine derivatives outstandingly suitable for one-component, moisture-hardening polymer compositions, which are of special interest in particular for the production of (floor) coatings, sealants, and adhesives.

Abstract: The present invention provides a block copolymer of styrene and an unsaturated cyclic anhydride, such as maleic anhydride, a process for making a copolymer using controlled free radical polymerization in which certain parameters are adjusted to control the microstructure and molecular weight of the copolymer, and a method for using the block copolymer, including as a compatibilizer. Microstructure and molecular weight in the block copolymer can be controlled by adjusting the ratio of stable free radical to initiator. The copolymer can be made in a one step process and has a controlled microstructure that allows one block to be reactive toward several chemical moieties available in engineering polymers and the other block to be fully miscible with polystyrene or polymers miscible with polystyrene or polymers miscible with polystyrene such as polyphenylene ether.

Abstract: A process for producing a living radical polymer characterized in that a vinyl monomer is polymerized with use of a living radical polymerization initiator represented by the formula (1) and a compound represented by the formula (2), and the living radical polymer obtained by the process wherein R1 is C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R2 and R3 are each a hydrogen atom or C1-C8 alkyl, and R4 is aryl, substituted aryl, an aromatic heterocyclic group, acyl, oxycarbonyl or cyano (R1Te)2??(2) wherein R1 is the same as above.

Abstract: The present invention provides a process for preparing mono- or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or of a comonomer over an acidic catalyst, wherein the polymerization reactor is started up using a mixture of polytetrahydrofuran, the mono- or diesters of polytetrahydrofuran and/or of the THF copolymers, tetrahydrofuran, any comonomer and at least one carboxylic acid and/or one carboxylic anhydride.

Abstract: The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethylene oxide with one or more primary or secondary alcohol groups or glycosaminoglycans such as hyaluronic acid, and the double bond monomer includes monomers containing at least one double bond, preferably a C?C, C?N or C?O bond, including N-trimethylsilyl-allylamine, ethylene, propylene and allyl alcohol.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: A photocurable and thermosetting resin composition comprises (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a-polymerization initiator, (C) a diluent, and (D) a polyfunctional oxetane compound. The actinic energy ray-curable resin mentioned above can be produced by causing the reaction of (a) a polyfunctional oxetane compound with (b) an unsaturated monocarboxylic acid and the subsequent reaction of (c) a polybasic acid anhydride with a primary hydroxyl group of the resultant modified oxetane resin (a?). wherein R1 represents a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, R2, R3 and R4 independently represent a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an aryl group, an aralkyl group, a cyano group, a fluorine atom, or a furyl group, and X represents a polybasic acid anhydride residue.

Abstract: The present invention relates to heterofunctional copolymers of glycerol and polyethylene glycol, conjugates of these heterofunctional copolymers with bioactive agents, nanoparticles, hydrophobic polymers and/or lipids; and to compositions containing these conjugates.

Abstract: The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

Abstract: A printed circuit board that includes a solder resist has a photocurable and thermosetting resin composition which comprises (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a polymerization initiator, (C) a diluent, and (D) a polyfunctional oxetane compound. The actinic energy ray-curable resin mentioned above can be produced by causing the reaction of (a) a polyfunctional oxetane compound with (b) an unsaturated monocarboxylic acid and the subsequent reaction of (c) a polybasic acid anhydride with a primary hydroxyl group of the resultant modified oxetane resin (a?). wherein R1 represents a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, R2, R3 and R4 independently represent a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an aryl group, an aralkyl group, a cyano group, a fluorine atom, or a furyl group, and X represents a polybasic acid anhydride residue.

Abstract: A process for preparing thermoplastic poly(3-hydroxyalkanoates) with a molar mass greater than 6 000 g/mol and a melting point in the range from 70 to 170° C., by reacting an oxirane compound with carbon monoxide in the presence of a transition metal catalyst which has rhodium(0), nickel(0), iron(0), cobalt(0) or palladium(0) as central metal and has been chelated with neutral Lewis bases, and also in the presence of diisocyanates, ortho esters, acetals, anhydrides, P2O5, MgO, MgCl2, MgSO4, zeolites, or a mixture of these, at a pressure in the range from 1 to 250 bar and at from room temperature to 150° C.

Abstract: Non-gelled polymeric polyols are prepared by the acid catalyzed copolymerization of water, tetrahydrofuran and multifunctional epoxy resins. The polyols can be cured with OH reactive crosslinkers such as amino resins and polyisocyanates to yield thermosetting coatings with useful properties.

Abstract: An aqueous dispersion of a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion; a preparation process therefor; its use for coating; a printing ink containing the aqueous dispersion; an electro-conductive layer containing a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion derived from an aqueous dispersion thereof; and an antistatic layer containing a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers.

Abstract: A resin composition comprising the associated product of a polyimide resin having phenolic hydroxyl groups in the skeleton with an epoxy resin-curing catalyst, an epoxy resin having at least two glycidyl groups, and an epoxy resin-curing agent has a high bond strength, a low modulus of elasticity and heat resistance. An adhesive film comprising the resin composition is useful as an adhesive or sealant for printed circuit boards and semiconductor packages.

Abstract: The present invention relates to a process for the preparation of acetal polymers, in particular of polyoxymethylene (POM) by cationic polymerization where organophosphonic and/or organophosphinic acids and/or their derivatives and/or their precursors are used as the initiator.

Abstract: Epoxy resin composition curing agents, which include a primary amino alcohol, are disclosed. Specifically, the invention relates to curing agents which include a primary amino alcohol physically blended therewith. Alternatively, the invention relates to curing agents which include a primary amino alcohol reacted into a resinous phenolic compound. Resin systems utilizing the curing agents of the invention exhibit enhanced hot wet adhesion to metal substrates and are particularly useful in the manufacture of powder coatings for pipe.

Abstract: An aqueous dispersion of a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion; a preparation process therefor; its use for coating; a printing ink containing the aqueous dispersion; an electro-conductive layer containing a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a polyanion derived from an aqueous dispersion thereof; and an antistatic layer containing a copolymer of at least one 3,4-alkylenedioxy-thiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.

Abstract: The present invention provides acetic anhydride, a method of purifying crude acetic anhydride, and a method of producing polyoxytetramethylene glycol using acetic anhydride. A method of producing polyoxytetramethylene glycol by ring-opening-polymerizing tetrahydrofuran in the presence of acetic anhydride and an acid catalyst, wherein said ring-opening polymerization is conducted using acetic anhydride having a diketene concentration of 10 ppm or less to produce polyoxytetramethylene glycol.

Abstract: The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves: (a) combining an aqueous solution of metal salt with an aqueous solution of a metal cyanide salt and reacting these solutions; and (b) recovering the DMC catalyst from the reaction mixture, in which process the DMC catalyst is prepared in the presence of from 0.03 to 0.4 mole of alkaline metal compound, based on amount of metal salt. Further, the present invention relates to DMC catalyst obtainable by such process, to DMC catalyst prepared from a metal salt and a metal cyanide salt in which the molar ratio of metal derived from the metal salt to metal derived from the metal cyanide salt is at least 2.25 and to a process for polymerization of alkylene oxides which process involves reacting initiator with alkylene oxide in the presence of at most 15 ppm of DMC catalyst.

Abstract: Provided herein are amine blends which may be used in place of N-aminoethyl piperazine as accelerator in the curing reaction of epoxy resins.

Abstract: Aqueous curing agents for epoxy resin dispersions comprising mixtures, adducts and/or salts of partly esterified organic phosphoric acids A1 or partly esterified phosphonic acids A2 with organic amines B selected from the group consisting of epoxide-amine adducts B1, Mannich bases B2, polyaminoamides B3, and condensation products B4 of diamines or polyamines B42 with di- or polyhydroxyaromatics B41, their preparation and a method of use comprising mixing thereof with aqueous epoxy resin dispersions in particular for coating metals as corrosion protection

Abstract: A continuous and scalable process for producing glycidyl nitrate, or glyn, from glycerin, nitric acid, and caustic wherein the process includes the reaction of glycerin and nitric acid to form dinitroglycerin and the reaction of dinitroglycerin with caustic, such as sodium hydroxide, system for producing the inventive material is also disclosed. The vessel, a second reaction vessel, and a separation apparatus.

Abstract: The photocurable and thermosetting resin composition of the present invention includes (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a photopolymerization initiator, (C) a diluent, and (D) a thermosetting component. In the general formula (1), R1 represents a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, R2, R3 and R4 independently represent a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an aryl group, an aralkyl group, a cyano group, a fluorine atom, or a furyl group, and X represents a polybasic acid anhydride residue.

Abstract: A process is provided in which at least one multi-functional alcohol having a hydroxyl functionality of at least two serves as a polymerization initiator. The multi-functional alcohol initiator is optionally, although preferably, reacted with a catalyst to form a catalyst-initiator complex, which is then used in the polymerization of glycidyl nitrate. The resulting poly(glycidyl nitrate) has a functionality substantially equivalent in number to the hydroxyl functionality of the multi-functional alcohol initiator. The poly(glycidyl nitrate) is cross-linked with at least one aromatic polyisocyanate having at least one aromatic ring and, on average, more than two isocyanate moieties bonded directly to the aromatic ring.

Abstract: A photocurable and thermosetting resin composition comprises (A) an actinic energy ray-curable resin having at least one structure represented by the following general formula (1), (B) a polymerization initiator, (C) a diluent, and (D) a polyfunctional oxetane compound. The actinic energy ray-curable resin mentioned above can be produced by causing the reaction of (a) a polyfunctional oxetane compound with (b) an unsaturated monocarboxylic acid and the subsequent reaction of (c) a polybasic acid anhydride with a primary hydroxyl group of the resultant modified oxetane resin (a?). wherein R1 represents a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, R2, R3 and R4 independently represent a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an aryl group, an aralkyl group, a cyano group, a fluorine atom, or a furyl group, and X represents a polybasic acid anhydride residue.

Abstract: Certain alcohol initiators containing halogen, aldehyde, ketone or nitro substitution can be alkoxylated with excellent efficiency and low production of by-products using an metal cyanide catalyst. The products contain halogen, aldehyde, ketone or nitro groups that can undergo subsequent reactions to form amino groups.

Abstract: The present invention is directed to an activated starter mixture which can be used to prepare polyoxyalkylene polyols. The present invention is also directed to a process for preparing an activated starter mixture, particularly, to a process for preparing an activated starter mixture which is composed of a low molecular weight starter compound. The present invention is also directed to a batch or semi-batch process for the polyaddition of an alkylene oxide on to an activated starter mixture, particularly, on to an activated starter mixture which is composed of a low molecular weight starter compound. The present invention provides an activated starter mixture, particularly, an activated starter mixture which is composed of a low molecular weight starter compound, which rapidly initiates polymerization. The present invention can eliminate the need to synthesize costly high molecular weight starter compounds by KOH catalysis in a separate, dedicated reactor.

Abstract: A method for precisely producing a polyether having a relatively high molecular weight by means of a double metal cyanide complex catalyst is provided. A method for continuously producing a polyether, which comprises ring opening addition polymerization of an alkylene oxide in the presence of a double metal cyanide complex catalyst, wherein substantially no vapor phase part is present in a reactor.

Abstract: The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal cyanide compound; b) at least one organic complexing ligand which is not a polyether, a bile acid, a bile acid salt, a bile acid ester or a bile acid amide; c) at least one polyether; and d) at least one bile acid, bile acid salt, bile acid ester or bile acid amide. The catalyst of the present invention has increased activity in the preparation of a polyether polyol.

Abstract: The invention I provides a method of producing an alicyclic epoxy compound having a specific structure, which comprises epoxidizing an alicyclic olefin compound having a specific structure by using an aliphatic percarboxylic acid having low water content. The alicyclic epoxy compound is useful for use in coatings, inks, adhesives, sealants, encapsulants, stabilizers or the like.

Abstract: A latent catalyst particularly useful in epoxy molding compositions for use in electronic packaging materials is provided. The latent catalyst is in the form of a curative represented by a combination of an inorganic-based carrier having an activated surface and a catalyst compound including a moiety capable of accelerating curing of the epoxy resin, such as the reaction product of silica and 1,8-diazobicyclo(5.4.0)undecene-7 (DBU). The activated surface of the inorganic-based carrier includes reactive surface groups capable of bonding to the moiety through a hydrogen bond, and also includes a high surface area porous surface, such that the catalyst compound is sorbed on the activated surface. The invention further provides epoxy compositions including the curative with an epoxy resin and a curing agent for the epoxy resin, which compositions are particularly useful as molding powders for semiconductors with prolonged shelf life stability.

Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm3, preferably at least 0.