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7582683 |
Anion-conducting polymer, composition, and membrane
Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues....
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7560525 |
Crystalline polyphosphonates and methods related thereto
Disclosed are crystalline polyphosphonates and a method to induce crystallization. These crystalline polyphosphonates exhibit a unique and advantageous combination of properties, allowing for solid...
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7541415 |
Process for preparing diaryl alkylphosphonates and oligomeric/polymeric derivatives thereof
A process is provided for the production of diaryl alkyl phosphonate by the reaction of triaryl phosphate with dialkyl alkyl phosphonate in the presence of alkali metal iodide catalyst; and,...
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7514520 |
Process for producing phosphonitrilic acid ester
A process for producing a phosphonitrilic acid ester. The process comprises using a specific compound as a catalyst to react phosphonitrile dichloride with at least one member selected among phenol...
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7446160 |
Phosphorus-containing cured benzoxazine resins and preparation thereof
A series of novel phosphorus-containing cured benzoxazine resins, which are synthesized from dihydrobenzoxazine resins with reactive phosphorus-containing compounds. The cured benzoxazine resins...
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7442757 |
Resin, resin composition, method for manufacturing the same, and molded material including the same
A thermoplastic resin contains a polymer, and the polymer includes a divalent phosphate residue having a spiro ring, represented by formula (1), in a molecule and has a number average molecular...
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7439275 |
Anion-conducting polymer, composition, and membrane
Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues....
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7375178 |
High refractive index thermoplastic polyphosphonates
High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A...
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7351775 |
Ion conductive membrane made from a block copolymer and methods of making a block copolymer
A block copolymer for use as a solid polymer electrolyte, said block copolymer having at least first and second segments, the first segments being hydrophilic segments provided with acidic...
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7262265 |
High temperature thermoset compositions
A new family of high temperature thermoset resins having high glass transition temperatures and enhanced hygrothermal stability that are synthesized using inexpensive starting materials in...
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7067083 |
High refractive index thermoplastic polyphosphonates
High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A...
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6878796 |
Solvent systems for polymeric dielectric materials
Aromatic aliphatic ether solvents, such as anisole, methylanisole, and phenetole, have been found useful in formulating coating solutions of polymeric dielectric materials and as a clean up solvent...
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6861499 |
Branched polyphosphonates that exhibit an advantageous combination of properties, and methods related thereto
Disclosed are branched polyphosphonates produced via a superior transesterification process, and methods related thereto. These branched polyphosphonates exhibit a unique and advantageous...
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6576161 |
Polyphosphate ester morpholides, mixtures thereof, and thermoplastic resin compositions containing polyphosphate ester morpholides as flame retardants
The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide...
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6566483 |
Photosensitive phosphorylated phenol-formaldehyde resin and method for preparing the same
This invention discloses a photosensitive phosphorylated phenol-formaldehyde resin, characterized by containing in its molecule at least two phosphate groups, each phosphate group coupled with at...
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6538098 |
Manufacture of polyketones
Polyketones are manufactured by reacting an aromatic carboxylic acid with a biractive aromatic compound, using as a catalyst a combination of a carboxylic acid anhydride and phosphoric acid, or...
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6525143 |
Dendritic macromolecules for metal-ligand catalyzed processes
This invention relates to dendritic macromolecules and their use in metal-dendritic macroligand complex catalyzed processes, e.g., hydroformylation. The use of metal-dendritic macroligand complex...
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6432539 |
Phosphorus-containing polymer having phenolic units and uses thereof
A phosphorus-containing polymer having phenolic units and an epoxy rein composition are provided. The epoxy resin composition suitably comprises an epoxy resin and a hardener, wherein the epoxy...
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6303733 |
Poly(arylene ether) homopolymer compositions and methods of manufacture thereof
Dielectric compositions encompassing one or more poly(arylene ether) polymers are provided. The dielectric compositions have the repetitive structural unit: ##STR1## where n=1 to 200, Y and Ar are...
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6291628 |
Solvent systems for low dielectric constant polymeric materials
A polymeric low dielectric constant solution includes a low dielectric constant polymer dissolved in an aromatic aliphatic ether solvent. The polymer preferably is a poly(arylene ether) and the...
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6273543 |
Aqueous developable high performance curable polymers
Disclosed is a composition which comprises a polymer containing at least some monomer repeat units with water-solubility- or water-dispersability-imparting substituents and at least some monomer...
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6156870 |
Resin composition which can be cured by application of heat or irradiation of light, film, laminate and production of multilayer wiring board
A resin composition which can be cured by application of heat or irradiation of light, comprising (A) a bismaleimide compound, (C) an acridine compound represented by the formula (1) or (2) as an...
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6150491 |
Polyaromatic compounds and method for their production
Polyaromatic compound made by polymerizing one or more aromatic monomers, least one of the one or more aromatic monomers having the following structure: ##STR1## wherein X is selected from the...
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6124421 |
Poly(arylene ether) compositions and methods of manufacture thereof
Dielectric compositions encompassing one or more poly(arylene ether) polymers are provided. The dielectric compositions have the repetitive structural unit: ##STR1## where n=0 to 1; m=0 to 1-n; and...
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6040416 |
Melt polymer synthesis of poly ether phosphine oxides
A melt polymerization method for producing poly(arylene ethers phosphine oxide)s suited to optical applications comprising reacting a trimethyl silyl derivative of bisphenol and an activated...
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6022947 |
Light-colored, low molecular weight phenolic-modified rosin esters
Light-colored phenolic-modified rosin esters, suitable for use as, for example, tackifiers in adhesive compositions, are prepared by reacting together rosin, a phenolic compound, formaldehyde or a...
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5965259 |
Process of making poy polyester fiber
The present invention is a pre-oriented, non-stretched polyester fiber spun with spooling speeds of at least 3,000 m/min., wherein the polyester is a copolymer comprised essentially of ethylene...
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5914388 |
Synthesis polyphosphazenes with controlled molecular weight and polydisperity
A process for the preparation of polyphosphazenes is provided that includes the cationic solution polymerization reaction of a phosphoranimine, using a main group or transition metal halide, or...
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5898062 |
Poly (organophosphazene) hydrogels
Poly (organophosphazene) polymers bearing various ratios of a carboxylic acid containing sidegroup and an alkylamino, alkoxy, or alkoxy ether sidegroup are disclosed. These water-soluble...
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5807960 |
Alkyl phosphate catalyst for polyquinoline synthesis
A method is provided for the preparation of polyquinoline polymers based on Friedlander condensation polymerization. The method comprises mixing monomers which, when polymerized, form a...
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5677416 |
Flame-retardant wholly aromatic polyester and method for preparing the same
There are disclosed a wholly aromatic polyester represented by formula I with enhanced flame retardance and chemical stability, and a method for the preparing the same. The polymer is prepared in...
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5665801 |
High molecular weight polyester flame retardant and process for preparing the same
The synthesis of a high-molecular weight phosphorus-containing polyester flame retardant is disclosed. A metal complex is selected as the catalyst to catalyze the addition reaction of phosphorus...
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5663280 |
Carbonate polymer resins containing low volatility aromatic phosphate ester compounds
Disclosed is a carbonate polymer composition comprising (a) a carbonate polymer having a weight average molecular weight of from about 20,000 to about 40,000 and (b) from greater than about 0.1 to...
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5616659 |
Low flammability thermoset polymers
Novel bisoxazoline monomers and novel bisoxazoline-novolak thermoset polymeric systems made therewith which have increased flame resistance.
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5548060 |
Sulfonation of polyphosphazenes
A method for the alkylsulfonation of polymeric and cyclic trimer phosphazenes that includes reacting the phosphazene with a sultone. This method can be used to prepare sulfonated phosphazenes that...
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5519106 |
Process for the preparation of aromatic polycarbonate resins
A process for preparing an aromatic polycarbonate resin from an aromatic dihydroxy compound and a carbonate diester by transesterification in the presence of a transesterification catalyst...
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5455324 |
Aromatic polycarbonate resin of improved color
Disclosed herein is an aromatic polycarbonate resin containing benzophenone and benzoate ester derivatives which have a molecular weight less than 1,000, each in an amount of 100 ppm or less. Also...
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5399654 |
Method for the production of phosphorus-containing aromatic polyester
A phosphorus-containing wholly aromatic polyester is produced by an interfacial polymerization method which includes the step of reacting a phosphorus-containing bisphenol compound and a bisphenol...
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5378794 |
Process for the production of aromatic phosphorus-containing polymer
A process for the production of an aromatic phosphorus-containing polymer, comprising (i) reacting phosphorus pentachloride with an aromatic dihydroxy compound and then reacting the reaction...
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5378793 |
Process for hardening phenolic resins
This invention relates to a hardener for producing phenolic resins from phenolic resoles which comprises a partial phosphate ester. The hardener is produced by reacting condensed phosphoric acids...
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5367041 |
Self-doped zwitterionic polymers
A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having...
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5334692 |
Highly branched polyphosphonates based on melamine
New, highly branched polyphosphonates which have a greatly improved flame retardant action compared with known polyphosphonates which are suitable as additives for plastics. In addition the new...
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5312890 |
Polycarbonate compositions comprising bisphosphine oxide monomer
Bisphosphine oxide monomers and homologs thereof may be incorporated into polycarbonates in order to obtain a flame retardant polymer. More particularly, bis[2,5-(diphenylphosphine...
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5304625 |
Phosphazene-containing amine as curing agent for phthalonitrile-based polymer
Phosphazene-containing amines having at least one amine or substituted amine moiety reactive with nitrile groups of the phthalonitrile monomers or oligomeric resins are useful curing agents for...
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5294650 |
Process for preparing sulfo-polyester/acrylic resin blends without volatile organic compounds
This invention relates to a process for preparing aqueous blends of sulfo-polyesters and solid acrylic resins without volatile organic compounds (VOC's) and surfactants. More specifically, the...
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5270432 |
Polybenzoxazole via aromatic nucleophilic displacement
Polybenzoxazoles (PBO) are prepared by the aromatic nucleophilic displacement reaction of novel di(hydroxyphenyl)benzoxazole monomers with activated aromatic dihalides or activated aromatic dinitro...
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5264538 |
Cyclic poly(aryl ether) oligomers
Cyclic poly(aryl ether) oligomers and mixtures thereof, and methods for the preparation thereof in a highly dilute reaction medium under reaction conditions favorable for ring closure at low...
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5262456 |
Fire retardant casting resin molding compounds based on epoxy resins and acidic esters of hydroxy-functional phosphors
A halogen free casting resin suitable for covering electron devices with a fire retardant material contains an acidic ester of an hydroxy-functional phosphor compound and an organic anhydride. A...
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5256765 |
Biodegradable poly(phosphate esters)
A pharmaceutical composition comprising a therapeutic agent, together with a polymeric delivery vehicle, the vehicle being made of poly(phosphoesters).
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5227454 |
High temperature resistant, benzothiazole-containing polyaryl ethers
Soluble and/or meltable benzothiazole-containing polyaryl ethers with a glass transition temperature of above 150° C. and a melting point of up to 450° C. are composed essentially of repeat units...
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