Abstract: Methods, compounds, and compositions described herein generally relate to polyalkylamines and syntheses thereof. In some embodiments, a chemical compound has the formula: Each instance of R is independently selected from the group consisting of aryl, alkyl, and polyether. Each instance of R? is independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, polyether, and alcohol. Each instance of Q and Z is independently a covalent bond or selected from the group consisting of alkyl and aralkyl.

Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Abstract: Methods, compounds, and compositions described herein generally relate to polyalkylamines and syntheses thereof. In some embodiments, a chemical compound has the formula: Each instance of R is independently selected from the group consisting of aryl, alkyl, and polyether. Each instance of R? is independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, polyether, and alcohol. Each instance of Q and Z is independently a covalent bond or selected from the group consisting of alkyl and aralkyl.

Abstract: The present invention relates to a process for producing a polycondensation product by polycondensing monomers including (A) an aromatic or heteroaromatic compound containing a polyether chain, (B) optionally an aromatic or heteroaromatic compound which is different from monomer (A), and (C) an aldehyde, in the presence of a protonation catalyst, wherein the aldehyde is provided by a fast-releasing aldehyde source and a slow-releasing aldehyde source.

Abstract: Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.

Abstract: A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an aldehyde or ketone and an amine salt of an inorganic acid. The composition when applied to fiberglass is cured to form a water-insoluble binder which exhibits good adhesion to glass. In a preferred embodiment the composition when applied to fiberglass provides a sufficient blackness required in facer products.

Abstract: ?-Aminoamidine polymers and methods of preparing a-aminoamidine polymers by reacting by reacting one or more amines with one or more isocyanides and one or more aldehydes are described. Methods of preparing a-aminoamidine polymers from commercially available starting materials are also provided, wherein the starting materials are racemic or stereochemically pure. a-Aminoamidine polymers or salt forms thereof are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems and for other purposes as well such as, for example, coatings, additives, excipients, plastics, and materials, etc. Given the amino moiety of these ?-aminoamidine polymers, they are particularly suited for the delivery of polynucleotides. Complexes, micelles, liposomes or particles containing the inventive ?-aminoamidine polymers and polynucleotides can be prepared. The inventive ?-aminoamidine polymers may also be used in preparing microparticles for drug delivery.

Abstract: Process for preparing polymeric, ionic compounds comprising imidazolium groups, wherein an ?-dicarbonyl compound, an aldehyde, at least one amino compound having at least two primary amino groups, if appropriate an amino compound having only one primary amino group and a protic acid, where the carbonyl groups of the ?-dicarbonyl compound and of the aldehyde may, if appropriate, also be present as hemiacetal, acetal or hemiketal or ketal, are reacted with one another.

Abstract: Methods for making and using amino-aldehyde resins. The method for making an amino-aldehyde resin can include mixing an intermediate amino-aldehyde reaction product having a total aldehyde compound to total amino compound molar ratio ranging from about 1.4:1 to about 3:1 with a first aldehyde compound and a first amino compound to produce an amino-aldehyde resin having a total aldehyde compound to total amino compound molar ratio ranging from about 0.5:1 to about 1.2:1. The concentration of the first aldehyde compound mixed with the intermediate reaction product can be about 1.9 wt % or more based on a combined solids weight of the aldehyde compounds and the amino compounds in the amino-aldehyde resin.

Abstract: Compositions for chemically removing sulfur deposits from reservoir formations, production tubing, flow lines, and other production equipment due to the production of sour gas and/or oil including reaction products of diamines and aldehydes at a mole ratio between about 1:1 and about 1:6, and methods for making and using same.

Abstract: Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.

Abstract: The invention relates to a photovoltaic coating containing a mixture of organic N-type (acceptor) and P-type (donor) semiconductor compounds, which makes it possible, when selecting the donor/acceptor pair, to modulate the semiconductor properties of the photovoltaic coating so as to enable the use thereof within a photovoltaic device, wherein one of the organic semiconductors includes a quinone core.

Abstract: Hyperbranched macromolecules and methods are described for selectively filtering contaminants such as anions from water and non-aqueous solutions, particularly in the presence of competing contaminants including other anions. The hyperbranched macromolecules may contain 2-hydroxyalkyl, 2-methyl-2-hydroxylalkyl, and other groups, which may be hydrophilic or hydrophobic. The molecules may preferentially bind to the contaminant at interest at low pH, and release the contaminant at a pH of about 9. The molecules may be used to filter contaminants including perchlorate and nitrate even in the presence of high sulfate concentrations.

Abstract: Process for the production of di- and poly(diamino diphenyl methane) comprising the steps of (a) reacting aniline and formaldehyde in the presence of an acid catalyst to produce a reaction mixture containing di- and polyamines; (b) neutralizing the reaction mixture containing di- and polyamines; (c) separating the neutralized reaction mixture into an organic phase containing di- and polyamines and an aqueous phase; (d) further treating the organic phase separated off in step (c) by (d1) washing with water followed by (d2) separating the washed mixture into an organic phase and an aqueous phase and (d3) further fractionation of the organic phase to produce purified di- and polyamines on the one hand and aniline/water on the other hand; (e) further treating the aqueous phase separated off in step (c) by (e1) washing with aniline followed by (e2) separating the washed mixture into an aqueous phase and an organic phase and (e3) further treatment of the aqueous phase to remove the aniline thereby leaving an efflu

Abstract: The present invention relates to novel polyamines having secondary amino groups, a process for producing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available reactants. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also constituent of epoxy resin compositions, especially coatings.

Abstract: Provided herein are polymeric ?-hydroxy aldehyde or ?-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the ?-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

Abstract: Processes for preparing crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels.

Abstract: Provided is a cellulosic composite comprised of cellulosic material and a binder. The binder comprises an aldehyde or ketone and amine salt of an inorganic acid. The composition when mixed with cellulosic material and cured forms a cellulosic composite.

Abstract: Provided is a novel polyazomethine which is soluble in relatively versatile organic solvents including hydrophobic solvents such as toluene, alcohol solvents such as methanol and ethanol, glycol solvents such as propylene glycol monomethyl ether, and ester solvents such as methyl lactate, while securing carrier mobility sufficient for a semiconductor material. The polyazomethine is a repeating unit that contains a divalent aromatic ring-containing conjugated group wherein an azomethine group and a divalent aromatic group which may have a substituent are alternately bonded and conjugated and a divalent hydrocarbon group which may have a group that is not conjugated with the azomethine group and has an oxygen atom, a sulfur atom or a cycloalkylene group, with the aromatic ring-containing conjugated group and the hydrocarbon group being bonded with each other via the azomethine group.

Abstract: Hyperbranched macromolecules and methods are described for selectively filtering contaminants such as anions from water and non-aqueous solutions, particularly in the presence of competing contaminants including other anions. The hyperbranched macromolecules may contain alkyl, 2-hydroxyalkyl, 2-methyl-2-hydroxylalkyl, 2-hydroxy-2-phenylalkyl, and other groups, which may be hydrophilic or hydrophobic. The molecules may preferentially bind to the contaminant at interest at low pH, and release the contaminant at a pH of about 9. The molecules may be used to filter contaminants including perchlorate and nitrate even in the presence of high sulfate concentrations.

Abstract: Methods for making and using amino-aldehyde resins. The method for making an amino-aldehyde resin can include mixing an intermediate amino-aldehyde reaction product having a total aldehyde compound to total amino compound molar ratio ranging from about 1.4:1 to about 3:1 with a first aldehyde compound and a first amino compound to produce an amino-aldehyde resin having a total aldehyde compound to total amino compound molar ratio ranging from about 0.5:1 to about 1.2:1. The concentration of the first aldehyde compound mixed with the intermediate reaction product can be about 1.9 wt % or more based on a combined solids weight of the aldehyde compounds and the amino compounds in the amino-aldehyde resin.

Abstract: The present invention provides curing agent compositions comprising benzylated polyalkylene polyamine compounds. Amine-epoxy compositions and articles produced from these amine-epoxy compositions are also disclosed.

Abstract: The present invention provides curing agent compositions comprising benzylated polyalkylene polyamine compounds. Amine-epoxy compositions and articles produced from these amine-epoxy compositions are also disclosed.

Abstract: Phenolic resin binder systems for sand molds, used in metal casting, which improve the quality of thermally reclaimed sand, are described. The substantial or complete elimination of calcium compounds (e.g., calcium stearate and calcium hydroxide, conventionally employed as a mold lubricant and a resin curing catalyst, respectively) allows the thermally reclaimed sand to be reused over multiple thermal reclamation cycles without the adverse effects previously encountered.

Abstract: A tissue adhesives and sealant formed by reacting a polyglycerol aldehyde with a water-dispersible, multi-arm amine is described. The tissue adhesive and sealant may be useful for medical and veterinary applications, including, but not limited to, wound closure, supplementing or replacing sutures or staples in internal surgical procedures such as intestinal anastomosis and vascular anastomosis, tissue repair, preventing leakage of fluids such as blood, bile, gastrointestinal fluid and cerebrospinal fluid, ophthalmic procedures, drug delivery, and to prevent post-surgical adhesions.

Abstract: Process for preparing polymeric, ionic compounds comprising imidazolium groups, wherein an ?-dicarbonyl compound, an aldehyde, at least one amino compound having at least two primary amino groups, if appropriate an amino compound having only one primary amino group and a protic acid, where the carbonyl groups of the ?-dicarbonyl compound and of the aldehyde may, if appropriate, also be present as hemiacetal, acetal or hemiketal or ketal, are reacted with one another.

Abstract: A system and method for the continuous production of an aqueous amino formaldehyde resin solution including the steps of (a) preparing a reaction mixture of an amino compound and an aqueous formaldehyde, (b) adding a catalyst to the reaction mixture, (c) condensation reacting the reaction mixture in the presence of the catalyst in a continuous plug flow, wherein in step (a) the amino compound and the formaldehyde are added as a concentrated aqueous solution or as a solid to a total solid content in the reaction mixture of 40-85 wt % (dry weight relative to the total weight of the reaction mixture), and in step (b) the catalyst is continuously added and finely dispersed into the reaction mixture through one or more addition points and optionally adding an amount of amino compound after condensation and/or removing water to reach a higher solid content.

Abstract: A composition for enhancing the dewatering of a paper sheet on a paper machine and a method for using the composition is disclosed. The composition comprising one or more aldehyde-functionalized polymers comprising amino or amido groups wherein at least about 15 mole percent of the amino or amido groups are functionalized by reacting with one or more aldehydes and wherein the aldehyde functionalized polymers have a molecular weight of at least about 100,000. The method comprising adding the composition to the paper machine at a dosage of about 0.05 lb/ton to about 15 lb/ton, based on dry fiber.

Abstract: A method of controlling the loss of a drilling fluid from a well bore into a subterranean formation in which one illustrative embodiment includes: drilling the well bore with an aqueous based drilling fluid that includes an aqueous phase and a shale hydration inhibitor that is a polyether amine compound, and circulating into the well bore a fluid pill including a dialdehyde crosslinking agent. The dialdehyde crosslinking agent reacts with the polyether amine compound and forms a polymeric material.

Abstract: A poly(imide-azomethine)copolymer that has a low linear thermal expansion coefficient and a method for producing the same copolymer are provided. Also provided are a poly(amic acid-azomethine)copolymer that is a precursor polymer of the poly(imide-azomethine)copolymer; a positive photosensitive resin composition composed of the precursor polymer and a photosensitizer; and a method for making a fine pattern of poly(imide-azomethine) copolymer from the resin composition.

Abstract: The invention relates to polyaldimines which may be obtained from at least one polyamine (A) with aliphatic primary amino groups and at least one aldehyde (B). Said polyaldimines are odorless as are the aldehydes (B) produced by hydrolysis thereof. The invention further relates to methods for production of said polyaldimines and aldehyde (B) and methods for hydrolysis of the polyaldimine. The use of said polyaldimine in compositions as adhesive, sealant, coating or covering agents is disclosed. Said polyaldimines are characterized in being odorless, rapidly hydrolyzed on contact with water, no detectable odors being generated after hydrolysis thereof and stable to storage with the exclusion of water in compositions which contain components reactive towards amines.

Abstract: Provided are an ester group-containing poly(imide-azomethine)copolymer having low linear thermal expansion coefficient; a production method thereof; an ester group-containing poly(amide acid-azomethine)copolymer to serve as the precursor of the poly(imide-azomethine)copolymer; a positive photosensitive composition including the poly(amide acid-azomethine)copolymer and a photosensitizer; a method for forming a fine pattern of an ester group-containing poly(imide-azomethine)copolymer from the composition; and a method for forming a fine pattern of an ester group-containing poly(imide-azomethine)copolymer by etching a photosensitizer-free, ester group-containing poly(imide-azomethine)copolymer in an alkaline solution.

Abstract: An anti-bacterial polymer of the present invention consists of a vapor deposition-polymerization reaction product of a diaminobenzoic acid monomer or halogen atom-containing diamine monomer and a monomer reactive with these monomers. The anti-bacterial polymer can be prepared by a method, which comprises the step of subjecting a gas obtained by evaporating a diaminobenzoic acid monomer or halogen atom-containing diamine monomer and a gas obtained by evaporating a monomer reactive with these monomers to vapor deposition-polymerization, in a vacuum, to thus form an anti-bacterial polymer. The method permits the formation of a film having a desired thickness even on the surface having a complicated shape such as the surface of, for instance, a heat exchanger.

Abstract: The invention relates to a method of producing polyisocyanates of the diphenylmethane series including the steps of a) reacting aniline and formaldehyde in the presence of HCl to provide a product mixture containing polyamines of the diphenylmethane series, HCl, aniline and water; b) removing excess aniline and water by distillation to provide a product mixture comprising polyamines of the diphenylmethane series, HCl, no more than 10 wt. % aniline based on the polyamines, and no more than 5 wt. % water based on the polyamines; and c) phosgenating the product mixture in (b).

Abstract: A slow release, particulate urea-formaldehyde polymer useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and a granular fertilizer made with the particulate urea-formaldehyde polymer.

Abstract: A water-soluble composition including a water soluble polyamine adduct which is a reaction product of: (a) an alkoxy group modified polyepoxide resin containing an average of at least 1.5 epoxide groups per molecule; and (b) a Mannich base polyamine. The Mannich base polyamine is a reaction product of a polyamine containing at least two amino groups with a N-Mannich condensate prepared from a reaction of a phenolic compound, an aldehyde, and a secondary amine wherein the secondary amine of the N-Mannich condensate is replaced by one of the at least two amino groups of the polyamine, and wherein the ratio of the Mannich base polyamine to the alkoxy group modified polyepoxide resin contains an excess of an active amine hydrogen relative to epoxide groups so that the water soluble polyamine adduct has an amine hydrogen equivalent weight of at most 1000 based on solids content.

Abstract: A polymeric fluorescent substance or polymeric fluorescent substance solution is disclosed which can attain higher luminous efficiency as a polymer LED. The polymeric fluorescent substance has a specific content of water or poor solvent. Also disclosed is an organic electroluminescence device comprising at least one light-emitting layer that contains substantially no particle-like foreign materials having a diameter of more than 1 &mgr;m and that has few dark spots.

Abstract: The invention relates to a process for the preparation of polyamines of the diphenylmethane series, comprising

Abstract: An improved resin for use in making honeycomb sandwich panels. The improvement involves modifying a phenolic resin so that the amount of smoke and heat generated during combustion is reduced. The reduction in smoke and heat generation is achieved by reducing the amount of phenol used to form the phenolic resin. The phenol is replaced by low-smoke producing sulfone compounds such as 4,4′-bisphenol-S, 3,3′-bisphenol-S, biphenol and bisphenol ethers which reduce the number of smoke producing methylene or methylene ether linkages present in the cured phenolic resin. The low-smoke producing resin may be used as a dip resin for coating the honeycomb or as the matrix resin for the core and face sheets of the sandwich panel.

Abstract: Provided is a polybenzoxazole precursor having a high purity which does not contain ionic by-products.

Abstract: Provided is an improved binder for use of fiberglass insulations and glass mats. The fiberglass binder is a triazone material prepared from urea, formaldehyde and a primary amine or a mixture of a priamary amine and ammonia. The binder of the present invention provides an increase in nitrogen content, while lowering the costs of manufacturer and improving performance. The binders of the present invention also exhibit lowered emissions and excellent high temperature properties.

Abstract: A one-step, in-situ, process for producing a high solids content emulsion or dispersion of partially or totally crosslinked urea formaldehyde (UF), melamine formaldehyde (MF), or melamine urea formaldehyde (MUF) resin droplets or particles, by forming a reaction mixture of (i) aqueous formaldehyde (formalin), (ii) at least one water-soluble protective colloid, (iii) water and (iv) optionally a surfactant, and mixing the reaction mixture in a reaction vessel; optionally adjusting the initial pH of the reaction mixture according to a desired value as needed; adding (i) urea or substituted urea, (ii) melamine or substituted melamine, or (iii) a mixture thereof, to the reaction mixture; and heating the reaction mixture to a temperature at which condensation takes place between the (i) urea or substituted urea, (ii) the melamine or substituted melamine, or (iii) the mixture thereof, and the formaldehyde to form a urea formaldehyde, melamine formaldehyde or melamine urea formaldehyde resin, and holding the reaction

Abstract: Provided is a polymeric fluorescent substance which emits a fluorescence in a solid state, which comprises the following repeating unit in an amount of 20 mol % or more based on the total amount of all repeating units, in the formula, X1 represents a group selected from the group consisting of —CR3═CR4—, —C≡C—, —SiR5R6—, —NR7—, —CO—, —CO—O—, —O—CO—, —SO2—, a carbon-carbon single bond, —O— and —S—. The polymeric fluorescent substance has strong fluorescence, and can be suitably used as a polymer LED and a dye for laser.

Abstract: Provided is an improved binder for use of fiberglass insulations and glass mats. The fiberglass binder is a triazone material prepared from urea, formaldehyde and a primary amine or a mixture of a priamary amine and ammonia. The binder of the present invention provides an increase in nitrogen content, while lowering the costs of manufacturer and improving performance. The binders of the present invention also exhibit lowered emissions and excellent high temperature properties.

Abstract: The present invention provides a method of accelerating hardening of thermosetting resin and a device therefor such that hardening time is rendered far shorter than in the case of the prior art. By way of a pertinent means, when unhardened thermosetting resin is to be disposed in an atmosphere having a specified temperature for the purpose of hardening, a ceramic plasma spraying plane is formed in at least one portion, or preferably in as large an area as possible, in the above-mentioned atmosphere whose temperature is maintained at a specified level and in which the above-mentioned resin is disposed, thereby causing convective heat existing in the hot air to be thermally converted into far infrared radiant heat radiation from the ceramic plasma spraying plane mentioned above.

Abstract: The present invention is drawn to polyamide ligand-containing polymeric resins and methods of using the same for removing, separating, and/or concentrating certain desired metal ions from solutions, even when the desired ions are in the presence of other metal ions and/or hydrogen ions at much higher concentrations. The unique composition of matter of this invention is a polyamide ligand-containing polymeric resin which is a reaction product of a hydroxymethylated polyamide ligand and a polymerization and/or crosslinking agent. Specifically, the polymeric resins of the present invention are comprised of from 10 to 50,000 polyamide ligand units wherein each polyamide ligand unit contains at least three amide groups (preferably from three to eight amide groups) and two amine groups separated by at least two carbons. Each amide group, after polymerization, may remain hydroxymethylated or be crosslinked to other polyamide ligand units through a crosslinking agent.

Abstract: The present invention is drawn to polyamide ligand-containing polymeric resins and methods of using the same for removing, separating, and/or concentrating certain desired metal ions from solutions, even when the desired ions are in the presence of other metal ions and/or hydrogen ions at much higher concentrations. The unique composition of matter of this invention is a polyamide ligand-containing polymeric resin which is a reaction product of a hydroxymethylated polyamide ligand and a polymerization and/or crosslinking agent. Specifically, the polymeric resins of the present invention are comprised of from 10 to 50,000 polyamide ligand units wherein each polyamide ligand unit contains at least three amide groups (preferably from three to eight amide groups) and two amine groups separated by at least two carbons. Each amide group, after polymerization, may remain hydroxymethylated or be crosslinked to other polyamide ligand units through a crosslinking agent.

Abstract: A crosslinking agent comprising one or more carbamate groups or groups convertible to carbamate and two or more polyfunctional amino moieties having the formula wherein L is selected from the group consisting of alkyl or aryl, cycloalkyl and alkylaryl having a carbon chain length between 1 and 6 carbon atoms and N is a polyfunctional amino moiety. L may also have additional bridging groups such as esters, ethers, ureas, or urethanes groups. Also included is a method of making the crosslinker, a coating composition containing the crosslinker and a method for coating a substrate with the composition.

Abstract: A one-step, in-situ, process for producing a high solids content emulsion or dispersion of partially or totally crosslinked urea formaldehyde or melamine formaldehyde resin droplets or particles, by forming a reaction mixture of (i) aqueous formaldehyde (formalin), (ii) at least one water-soluble protective colloid, (iii) water and (iv) optionally a surfactant, and mixing the reaction mixture in a reaction vessel; optionally adjusting the initial pH of the reaction mixture according to a desired value as needed; adding (a) urea, substituted urea, or a mixture thereof, or (b) melamine, substituted melamine, or a mixture thereof, to the reaction mixture; and heating the reaction mixture to a temperature at which condensation takes place between the (a) urea, substituted urea, or the mixture thereof, or (b) melamine substituted melamine, or the mixture thereof, and the formaldehyde to form a urea formaldehyde or melamine formaldehyde resin, and holding the reaction mixture at that temperature or a higher tempera

Abstract: An aminoplast-curable film-forming composition is disclosed. The film-forming composition is a crosslinkable composition comprising (1) a material containing a plurality of carbamate and/or urea functional groups and (2) an aminoplast crosslinking agent. The composition provides a coating with improved acid etch resistance, making the coating particularly useful as an automotive clear coat.