Abstract: A polythiophene wherein the monomer segments thereof contain 1

Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3-x  (I)  wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)1/2, with the proviso that if R is (O)1/2, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.

Abstract: There are provided novel blue light-emitting organic electroluminescent polymers having a main chain consisting of 9,10-diphenylanthracene and vinylene, and electroluminescent devices using the same. With the introduction of substituents which are of high thermal stability and are capable of steric hindrance at the alpha position of the vinyl group, the electroluminescent polymers make it easy to conduct inter- and intra-molecular energy transfer, and the injection and transportation of holes or electrons, as well as restraining &pgr;-stacking between polymer chains. Also, the prevention of intermolecular two- and three-dimensional interference by the introduced bulky substituents leads to reduced extinction of excitons, whereby the organic electroluminescent device can emit blue light at high luminous efficiency.

Abstract: A copolymer having a polystyrene reduced number average molecular weight of 103-108, and comprising repeating units represented by formulas (1), (2), and (3), 1

Abstract: Processes for synthesizing borohydride compounds with reduced energy requirements and high efficiency are disclosed. The processes include the reaction of a base with a borane complex or diborane to produce a borohydride compound of formula YBH4, where Y is a monovalent cationic moiety.

Abstract: Processes for synthesizing borohydride compounds with reduced energy requirements and high efficiency are disclosed. The processes include the reaction of a base with a borane complex or diborane to produce a borohydride compound of formula YBH4, where Y is a monovalent cationic moiety.

Abstract: The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4 by the reaction of a boron-containing compound represented by the formula BX3 with hydrogen or an aldehyde to obtain diborane and HX, and reacting the diborane with a Y-containing base selected from those represented by the formula Y2O, YOH and Y2CO3 to obtain YBH4 and YBO2. Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, alkaline earth metals, an ammonium ion, and quaternary amines of the formula NR4+, wherein each R is independently selected from hydrogen and a straight- or branched-chain C1-4 alkyl group, and X is selected from the group consisting of halide ions, —OH, —R′ and —OR′ groups, chalcogens, and chalcogenides, wherein R′ is a straight- or branched-chain C1-4 alkyl group.

Abstract: The present invention describes novel polymers, their use as organic semiconductors and/or electroluminescent materials, and electro-luminescent devices containing polymers of this type.

Abstract: Disclosed are polymers comprising one or more phenyl boronate ester, boronamide or boronate thioester groups.

Abstract: A polymer which comprises triarylamine units, which polymer comprises one or more structural units comprising Arh-NAr2, where Arh comprises a substituted or unsubstituted heteroaryl group and each Ar is the same or different and comprises a substituted or unsubstituted aryl or heteroaryl group and excluding the copolymer where the polymer backbone contains one or more divinylenearylene units.

Abstract: The present invention relates generally to a method of synthesising a metal alkoxide polymer involving the following general steps: 1. acidolysis; 2. condensation; and 3. subsequent processing. The acidolysis step is preferably performed without addition of water, in the presence of a mutual solvent. The acidolysis step involves acidolysis of a metal alkoxide compound with an acid to produce an intermediate acidolysed solution. The condensation step involves condensation of the intermediate solution in the presence of a metal alkoxide compound to produce the metal alkoxide polymer.

Abstract: Diketopyrrolopyrrole (DPP) based polymers and copolymers comprising the following units wherein x is chosen in the range of from 0.005 to 1, and y from 0.995 to 0, and wherein x+y=1, and wherein Ar1 and Ar2 independently from each other stand for blends of such polymers and copolymers with other polymers, their use for the preparation of electroluminescent (“EL”) devices and EL devices comprising such polymers or copolymers.

Abstract: The present invention relates to compositions and processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds.

Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3−x  (I)  wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)½, with the proviso that if R is (O)½, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.

Abstract: Linear backbone phosphorus-boron polymers of the general formula (I): wherein R1, R2, R3, and R4, are the same or different and selected from H, optionally substituted alkyl, alkenyl and phenyl; and n is at least 2, and particularly high molecular weight polymers of absolute weight average molecular weight of at least 10,000. The polymers are of use as fire retardants.

Abstract: New compositions, metal-ligand complexes and arrays are disclosed that catalyze the polymerization of monomers into polymers.

Abstract: A process for preparing a conjugated polymer, which comprises polymerizing in a reaction mixture (a) an aromatic monomer having at least two reactive boron derivative groups selected from a boronic acid group, a boronic ester group and a borane group, and an aromatic monomer having at least two reactive halide functional groups; or (b) an aromatic monomer having one reactive halide functional group and one reactive boron derivative group selected from a boronic acid group, a boronic ester group and a borane group, wherein the reaction mixture comprises a catalytic amount of a palladium catalyst, and an organic base in an amount sufficient to convert the reactive boron derivative groups into —B(OH)3− anions.

Abstract: A boroxine composition having fire and/or flame retardant properties comprising a halo-substituted boroxine in combination with a compound containing an epoxide group curable by the halogenated boroxine compound. A method of making the boroxine comprises reacting the appropriate alcohol with boric acid in the presence of a solvent, usually toluene. In an alternative method, the boroxine is prepared by reacting boric oxide with the corresponding borate, the latter being prepared by reacting the corresponding alcohol with boron trichloride.

Abstract: A polymer which comprises triarylamine units, which polymer comprises one or more structural units comprising Arh-NAr2, where Arh comprises a substituted or unsubstituted heteroaryl group and each Ar is the same or different and comprises a substituted or unsubstituted aryl or heteroaryl group and excluding the copolymer where the polymer backbone contains one or more divinylenearylene units.

Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): and from 10-90 percent by weight of groups selected from Formulas (II), (III), and (IV): and mixtures thereof; wherein R1 is independently in each occurrence H, C1-C20 hydrocarbyl or C1-C20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-C16 hydrocarbyl carbonyloxy, C4-C16 aryl(trialkylsiloxy) or both R1 may form with the 9-carbon on the fluorene ring a C5-C20 cycloaliphatic structure or a C4-C20 cycloaliphatic structure containing one or more heteroatoms of S, N, or O; R2 is independently in each occurrence C1-C20 hydrocarbyl, C1-C20 hydrocarbyloxy, C1-C20 thioether, C1-C20 hydrocarbylcarbonyloxy or cyano; R3 is independently in each occurrence carboxyl, C1-C20 alkyl, C1-C20 alkoxy or a group of the formula —CO2R4 wherein R4 is a C1-C20 alkyl; and a and b are independently in each occurrence an integer from 0 to 3.

Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): 1

Abstract: A novel polymer comprising oligo-p-phenylene units and having formula (A.sub.k B).sub.n is disclosed, wherein A and B have the following chemical structure: ##STR1## Y are identical or different and are each (E)--CR.sup.9 .dbd.CR.sup.10 --, --C.dbd.C-- or --CHR.sup.11 --CHR.sup.12 ;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 are, independently of one another, identical or different in the individual structural elements and are each H, a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, or an aryl or aryloxy group, or Br, Cl, F, CN or alkyloxycarbonyl having from 2 to 23 carbon atoms;k is from 1 to 25,n is from 1 to 200.The polymer of the present invention may be used as an electroluminescence material.

Abstract: Direct thermal syntheses in the absence of catalyst, of poly(borazylenes) and of oligomers of borazine with polyhedral boranes, carboranes or heteroboranes are disclosed. The products of these syntheses are precursors to BN or other boron-containing ceramics.

Abstract: An anti-fogging coating composition contains (a) an inorganic alkoxide and/or a hydroxyl group-containing polymer formed therefrom by hydrolysis and polycondensation, the inorganic alkoxide being represented by the formula (I):M(OR).sub.n (X).sub.a-n (I),wherein M is an inorganic element selected from the group consisting of Si, Al, Ti, Zr, Ca, Fe, V, Sn, Li, Be, B and P; R is an alkyl group; X is an alkyl group with or without functional groups or a halogen atom; a is a number representing the valence of M; and n is an integer from 1 to a; (b) a polyalkylene oxide, a weight ratio of the polyalkylene oxide to the inorganic alkoxide and/or the hydroxyl group-containing polymer being 100/1-100/150; (c) 0.5 parts by weight or less of an acid catalyst per 100 parts by weight of (a); (d) 0.

Abstract: A process for preparing conjugated polymers which comprises contacting (i) monomers having two reactive groups selected from boronic acid, C.sub.1 -C.sub.6 boronic acid ester, C.sub.1 -C.sub.6 borane, and combinations thereof, with aromatic dihalide-functional monomers or (ii) monomers having one reactive boronic acid, boronic acid ester, or borane group and one reactive halide-functional group, with each other; (wherein the monomers are selected so that the polymerization reaction product of such has conjugated unsaturated internal groups) in a reaction mixture which contains: (a) an organic solvent in which the polymer forms at least a 1 percent solution; (b) an aqueous solution of an inorganic base having a pKa in the range of from 9 to 13, said solution having a concentration of at least 0.1N; (c) a catalytic amount of a palladium complex; and (d) at least 0.

Abstract: The Comparative Tracking Index of a flame retardant polyketone blend of polyketone polymer and glass filler is improved by formulating the flame retardant as a mixture of alkaline earth metal hydroxide or carbonate and zinc compound.

Abstract: Polycarbynes, such as doped polycarbynes, prepared from a soluble source of electrons and an organic monomer or co-monomer containing at least one carbyne group and, optionally, containing a doping agent, in an ethereal, polyethereal, or hydrocarbon solvent are presented. A wide variety of arylcarbyne and/or alkylcarbyne monomers and co-monomers can be combined with a source of electrons soluble in an ethereal, polyethereal, or hydrocarbon solvent to form novel polycarbyne polymers. These polycarbyne polymers can be used to form synthetic diamond materials, fibers, and other materials that can withstand extreme conditions.

Abstract: There are disclosed methods and compositions for retarding the ambient temperature hardening of a phenolic resole resin alone or with an aggregate when such resin is contacted with a nitroalkane and a hardening agent such as lightburned magnesium oxide, an organic ester functional hardening agent, and mixtures of lightburned magnesium oxide and an organic ester functional hardening agent in an alkaline medium. There is also disclosed a hardener composition for phenolic resole resins wherein the hardener composition consists essentially of a solution of a nitroalkane in an organic ester functional hardening agent.

Abstract: Cationic copolymerization of trioxane with glycidyl ester derivatives, preferably glycidyl acrylate derivatives, produces thermally stable, usually cross-linked, acetal copolymer. The resulting acetal copolymer will exhibit side chain ester functionality, and particularly side chain vinyl functionality when glycidyl acrylate derivatives are employed, so as to permit its futher reaction with other chemical moieties to achieve an acetal copolymer of modified chemical and/or physical properties.

Abstract: Organoboron nitride polymers are produced by polymerization of organoboron nitride compounds having a cyclic structure of the formula (XBNR).sub.3 wherein R represents hydrogen, a saturated or unsaturated alkyl group or an aryl group and X represents a primary, secondary or tertiary amino group or a silylamino group in the presence of at least one of amine compounds of the formula R.sup.1 NH.sub.2 and amine compounds of the formula R.sup.1 NHR.sup.2 wherein R.sup.1 and R.sup.2 which may be the same or different individually represent an alkyl, aryl or silyl group. The organoboron nitride polymers are suitable as a raw material for the production of boron nitride and as a binder for boron nitride powders.

Abstract: Carboranylmethylene-substituted cyclophosphazenes which can be thermally polymerized into carboranylmethylene-substituted phosphazene polymers, useful as thermally stable coatings and, due to the characteristics of these polymers in acting as a ligand for transition metals, metallocarboranylmethylene phosphazene polymers which can act as immobilized catalyst systems, and are electrically conductive and superconductive.

Abstract: A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy transparency layer is bound to the other transparent layers, in a variety of configurations, using an interlayer of mercaptan terminated resins. These resins greatly improve resistance to moisture permeability in and about the edges of the entire transparency.

Abstract: High temperature-resistant thermobarriers have a filler therein. The filler can be an opaque thermobarrier material, a fabric or cloth such that a laminated thermobarrier is formed, or preformed bubbles of glass, ceramic or plastic such that a syntactic foam thermobarrier is formed. The thermobarrier contains a boroxine compound therein as well as epoxy resins and various phosphorus compounds and/or aromatic alcohols. Generally, the syntactic foam thermobarriers give the best heat protection.

Abstract: A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. Additionally, the transparency may include phosphite or phosphate compounds to improve heat resistance, with the phosphate compound in sufficient concentrations to delay gel times such that the phenyl substituted alkyl alcohol may be eliminated from the composition. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy transparency layer is bound to the other transparent layers, in a variety of configurations, using an interlayer of mercaptan terminated resins. These resins greatly improve resistance to moisture permeability in and about the edges of the entire transparency.

Abstract: An adhesive epoxy resin composition particularly useful in underwater envnments which is the result of the admixture of a 3,4-epoxycyclohexylalkyl 3,4-epoxycyclohexanecarboxylate, exo-exo bis(2,3-epoxycyclopentyl) ether, endo-exo bis(2,3-epoxycyclopentyl) ether, a trialkoxyboroxine curing agent and a surfactant and methods of making said adhesive.

Abstract: A highly heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy resin having the trimethoxyboroxine and benzyl alcohol may also have triphenyl phosphite which further increases the resistance to intense heat for these transparencies in their use on military and industrial hardware.

Abstract: Polyphosphazene copolymers are prepared which contain randomly distributed units represented by the formulas: ##STR1## wherein X is --OB(OR).sub.2 in which R is a branched, straight chain or cyclic alkyl group containing from 1 to 12 carbon atoms or mixtures thereof, and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups. The alkyl groups may vary in carbon chain length within the borate or all be the same.The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as for moldings, coatings, and the like. The copolymers of the invention also crosslink at room temperature in the presence of water yielding a solvent resistant film.