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7528205 |
Photo radical generator, photo sensitive resin composition and article
A photoradical generator which produces no low-molecular decomposition material but a radical during a photoradical generating process, does not generate a radical during a heating process, exists...
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7473719 |
Crosslinkable hydrophilic materials from polymers having pendent Michael donor groups
The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from polymers having pendent hydrophilic groups, and pendant Michael donor...
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7309758 |
Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications
A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the...
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7307106 |
Photocurable Michael addition polymers
A curable composition is described comprising a Michael donor component, a polyacryl component, and a monoacryl component, where at least one of the Michael donor or monoacryl components comprises...
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7226981 |
Curing agent composition for epoxy resin
An epoxy resin curing agent composition containing a ketimine compound prepared by the reaction between a polyoxypropylenediamine component and a ketone compound, wherein (1) the...
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7183372 |
Preparation of ketone-formaldehyde resins
A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance,...
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7144949 |
Synthetic method for conducting polymer nanofibers
Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at...
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7071282 |
Benzimidazole diamine-based polyetherimide compositions and methods for making them
Disclosed herein are polyetherimide compositions comprising structural units of the formula:
derived from at least one benzimidazole diamine, wherein R 1 and R 2 are independently selected...
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7030206 |
Polymer electrolyte and proton-conducting membrane
To provide a sulfonic acid group-containing polymer having improved hot water resistance and radical resistance (durability), a solid polymer electrolyte including the polymer, and a...
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6974855 |
Polyimides by photochemical cyclopolymerization
The novel polyimides of this invention are derived from Diels-Alder cyclopolymerization of photochemically generated bisdienes with dienophiles, such as bismaleimides, trismaleimides and mixtures...
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6790930 |
Process for producing polyimide resin
The present invention provides a method for easily producing a high-molecular weight polyimide resin at high yield by drying and heating a mixture mixed by material monomers of polyimide.
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6770733 |
Polyimide copolymer
A film-formable polyimide copolymer, which comprises two kinds of tetracarboxylic acid dianhydride consisting of (A) pyromellitic acid dianhydride and (B) 3,3′,4,4′-benzophenonetetracarboxylic...
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6590067 |
Modification of polymers with basic N-groups and ion exchange groups in the lateral chain
A method for lateral chain modification of aryl main chain polymers with aromatic ketones or aldehydes containing tertiary basic N-groups is described. The modification can be accomplished via...
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6586561 |
Rigid rod ion conducting copolymers
Sulfonated polyimide polymers incorporating bulky monomers are disclosed. The polymers have a liquid crystalline structure and exhibit high conductivity, high water uptake and water stability over...
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6573357 |
Process for the preparation of ketimine curing agents
The present invention relates to a process for the production of aliphatic ketimines having a polyalkylenepolyamine content of less than 1% by weight from the corresponding aliphatic ketones and...
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6323301 |
High performance UV and heat crosslinked or chain extended polymers
Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first,...
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6309527 |
Thermosetting resinous binder compositions, their preparation and use as coating materials
The invention relates to thermosetting resinous binder compositions comprising a cationic resin (1) and a cross-linking agent (2), wherein the cationic resin (1) is an epoxy resin/amine adduct with...
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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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6265588 |
Isoxazole and crotonamide derivatives and their use as pharmaceuticals and diagnostics
A compound of the formula ##STR1## where R 1 is the radical of the formula II or III ##STR2## is suitable for the production of a pharmaceutical for the treatment of inflammations, carcinomatous...
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6235868 |
Porphyrinogenic resin systems and polymers derived therefrom
Polymerisable resins which comprise a porphyrinogenic ring system obtained by the reaction of: (a) one or more compounds selected from the group consisting of pyrrole and N-(lower)alkyl pyrroles,...
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6211326 |
Method for the production of polyester imides containing carboxyl- and hydroxyl groups and their usage in wire enamels
The invention relates to a process for preparing hydroxyl- and carboxyl-containing polyesterimide resins, comprising as monomeric components: (A) imide-forming compounds having at least two...
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6203143 |
Hydroxyalkylated high performance curable polymers
Disclosed is a composition which comprises (a) a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of...
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6140462 |
Oxidative/reductive methods of deaggregation of electrically conductive polymers and precursors thereof and methods of fabricating articles therewith
The present invention is directed to oxidative and reductive methods of fabricating electrically conducting polymers and precursors thereof in particular polyanilines in which the polymer chains...
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6114493 |
Phosgenated oxime resins and their preparation
This invention relates to methods for preparing novel, solid-phase transfer reagents, specifically phosgenated oxime resins and non-symmetrical ureas, that are useful as supports in combinatorial...
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6087414 |
Process for direct substitution of high performance polymers with unsaturated ester groups
Disclosed is a process which comprises reacting a polymer of the general formula ##STR1## wherein x is an integer of 0 or 1, A is one of several specified groups, such as ##STR2## B is one of...
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6034206 |
Polyaryleneamines and a process for their production
A novel class of polyaryleneamines improved in physical and chemical properties, particularly in heat resistance and solvent resistance, and a process for producing the same are disclosed: said...
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5986038 |
Adhesive composition
An adhesive composition comprising a fluorinated elastomer having dicyclopropane rings formed by reaction of chloroform with unsaturated bonds introduced into the molecule of fluorinated elastomer...
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5955564 |
1,5(8)-bis (substituted-N-propylamino)-4,8(5)-bis(arylthio)anthraquinone compounds
This invention relates to new blue anthraquinone colorants having Formula I ##STR1## wherein R and R1 are the same or different and are selected from hydrogen and unsubstituted or substituted C1-C6...
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5932688 |
Polybenzimidazole material with low metallic concentration and a process for production thereof
An improved polybenzimidazole wherein the total concentration of metals other than alkali metal and alkaline earth metals is 10 ppm or less. The resulting polybenzimidazole is industrially useable...
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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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5902876 |
Polybenzimidazole compounds in solution and a process for the preparation thereof
Improved process for producing a polybenzimidazole compound in solution by dissolving a fully dried polybenzimidazole of the following general formula (1) or (2) in N,N-dimethylacetamide of a...
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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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5854385 |
Coating compositions with low molecular weight carbamate or urea component
A coating composition is disclosed that includes: (A) a multi-functional compound having (1) at least one carbamate or urea functional group, (2) at least one other functional group which...
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5852161 |
Process for the preparation of undoped polyaniline via para-haloaniline
An improved method for the synthesis of low molecular weight polyaniline provides for heating a para-haloaniline in the presence of a high-boiling organic solvent and a vanadium catalyst. A neutral...
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5840825 |
Gas barrier coating compositions containing platelet-type fillers
Disclosed is a gas barrier coating and multilayer packaging materials made therefrom. The gas barrier coating includes a polyamine (A), a polyepoxide (B), and a filler (C). Polyamine (A) includes...
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5714563 |
One-part, low viscosity, moisture curable composition
A one-part, low viscosity, moisture curable composition which exhibits excellent shelf stability in the absence of water, but which quickly cures at ambient conditions upon exposure to moisture in...
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5712363 |
Oligomeric sterically hindered polyamine crosslinkers and coating compositions containing the same
The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine...
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5708123 |
Electroactive materials, a process for their preparation as well as the use thereof
Stable, electroactive material which when a potential is applied from the outside is subjected to one or more reversible redox reactions, for use in devices with an electrochromic display or...
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5693725 |
Crosslinked Mannich-Michael polycondensates
Novel polymers of general formula: ##STR1## wherein where n is a whole number from 2 to 10; R is a spacing group comprising (a) at least one of m methylene units where m is a whole number from 1 to...
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5637670 |
Polybenzimidazoles via aromatic nucleophilic displacement
Novel molecular weight controlled and endcapped polybenzimidazoles (PBI) are prepared by the aromatic nucleophilic displacement reaction of di(hydroxyphenylbenzimidazole) monomers with activated...
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5612443 |
Low molecular weight polyaldehydes
Low molecular weight polyaldehydes are prepared by converting the acetal groups of the low molecular weight polyacetal to aldehyde groups or by reacting an aldehyde-containing reagent (e.g.,...
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5606012 |
Polyetheramidoamine hydrogels as heparinizable materials
Polymeric polyetheramidoamine hydrogel materials, which are capable of complexing heparin in physiological conditions are herein described. Said materials are useful in the manufacturing of medical...
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5571890 |
Polyetheramidoamine superabsorbent hydrogels
Polyetheramidoamine hydrogels consisting of polyetheramidomaine and/or polyamidoamine prepolymers crosslinked by Michael's nuceophilic polyaddition with alpha-omega-diamino monomers or with...
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5554715 |
Poly(N-arylenebenzimidazole)s via aromatic nucleophilic displacement
Novel poly(N-arylenebenzimidazole)s (PNABls) are prepared by the aromatic nucleophilic displacement reaction of novel di(hydroxyphenyl-N-arylene benzimidazole) monomers with activated aromatic...
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5492998 |
Cross-linked tertiary-amine polymers
Novel polymers of general formula: ##STR1## wherein R is an alkyl or aryl group that contains an active hydrogen atom (as determined by the Zerewitinoff test); A is a spacing group having at least...
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5480961 |
Bioabsorbable polymers derived from cyclic ether esters and surgical articles made therefrom
Bioabsorbable polymers are obtained from the polymerization of cyclic ether-esters which are derived from crown ethers. The bioabsorbable polymers are useful in forming surgical articles including...
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5464926 |
Synthesis and polymerization of oligomeric multiple aromatic ether-containing phthalonitriles
Oligomeric monomers are produced by reaction of a bisphenol compound with ther a dihalobenzophenone or a (2,2)bis(4-halophenyl)hexafluoropropane and any other activated halogen containing aromatic...
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5453326 |
Polyester film coating with polyamido-polyethyleneimine
The present invention relates to a polymeric film in-line coated with polyamido-polyethyleneimine to render the film receptive to direct extrusion coating with other polymers or to ink adhesion and...
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5453482 |
Process for preparing arylsulfonyl halides
Provided is a new process useful for preparing arylsulfonyl halides, which comprises the addition or drowning of halosulfonation reaction products, produced by the reaction of aromatic compounds...
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5442029 |
Methods of preparing polymeric ketones
A new method for preparing commercially valuable polymeric ketones is described. The method employs an α-amiononitrile as a monomeric unit whereby an amorphous, soluble polymer having protected...
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