| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528422000 | NITROGEN-CONTAINING REACTANT | 48 |
| 20080234462 | Preparation Method of Polyamide Thin Film Composite Reverse Osmosis Membrane and Polyamide Thin Film Composite Reverse Osmosis Membrane Prepared Therefrom - A preparation method of a polyamide thin film composite reverse osmosis membrane and a polyamide thin film composite reverse osmosis membrane prepared using the preparation method are provided. The preparation method of a polyamide thin film composite reverse osmosis membrane using interfacial polymerization of an amine aqueous solution and amine-reactive compound includes the steps of (a) forming an active layer through interfacial polymerization by contacting a surface of a porous support with an amine aqueous solution containing a polyfunctional aromatic amine monomer and an organic solution containing polyfunctional acyl halide monomer as an amine-reactive compound, and (b) performing post-treatment preceded by the forming of the active layer by contacting the active layer with an aqueous solution containing 0.1 to 100 wt % of polyfunctional tertiary alcohol amine. The polyamide thin film composite reverse osmosis membrane prepared by using the polyfunctional tertiary alcohol amine as a post-treatment compound has improved water permeability and salt rejection compared to a case of using various post-treatment agents or methods. | 09-25-2008 |
| 20080234463 | Self-Healing Wire Insulation - A self-healing system for an insulation material initiates a self-repair process by rupturing a plurality of microcapsules disposed on the insulation material. When the plurality of microcapsules are ruptured, reactants within the plurality of microcapsules react to form a replacement polymer in a break of the insulation material. This self-healing system has the ability to repair multiple breaks in a length of insulation material without exhausting the repair properties of the material. | 09-25-2008 |
| 20090023890 | Membrane Active Heteropolymers - The present invention is directed to a class of membrane active polymers useful for cellular delivery of compounds. Conjugation of the described membrane active polymers to targeting, anti-opsonization, and anti-aggregation agents provides polymers suitable for in vivo delivery. The use of multiple reversible linkages connecting component parts provides for physiologically responsive activity modulation. | 01-22-2009 |
| 20090182118 | METHOD FOR PRODUCING POLYGUANIDINES - The invention relates to polyguanidine synthesis. The inventive method for producing polyguanidines consists in polycondensing a guanidine salt with diamine during heating in the presence of an organic acid or a mixture of organic acids. A heating process is carried out stepped process and consists in gradually increasing a temperature up to 120-130° C. and in holding at said temperature for 0.5-1.0 hour, in increasing a temperature up to 150-160° C. and in holding at said temperature for 3.5-4.0 hours and in increasing a temperature up to 170-180° C. and in holding at said temperature for 1.0-1.5 hours. Said method makes it possible obtain, in a more full manner and in shorter time, a polyguanidine, which exhibits a high biological activity. The thus obtained polyguanidines are not toxic and can be efficiently used for treating drinking and sewage waters and for producing antiseptic, cosmetic and disinfecting agents. | 07-16-2009 |
| 20090203876 | Pulsed Driven Displays - A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I:
| 08-13-2009 |
| 20100029897 | ANION-BINDING POLYMERS AND USES THEREOF - Anion-binding polymers are described. The anion-binding polymers in some cases are low swelling anion-binding polymers. In some cases, the anion-binding polymers have a pore volume distribution such that a fraction of the polymer is not available for non-interacting solutes above a certain percentage of the MW of the target ion for the polymer. In some cases, the anion-binding polymers are characterized by low ion-binding interference, where the interference is measured in, for example, a gastrointestinal simulant, relative to non-interfering buffer. Pharmaceutical composition, methods of use, and kits are also described. | 02-04-2010 |
| 20100029898 | PROCESS FOR THE SYNTHESIS OF 3-HYDROXYGLUTARONITRILE - A high yield and high productivity processes for preparing 3-hydroxyglutaronitrile by reacting an epihalohydrin or a 4-halo-3-hydroxy-butanenitrile, or analogous compound containing a different leaving group, with cyanide (CN—) in the presence of water and an ionic liquid. The use of an ionic liquid as a cosolvent with water results in increased productivity and selectivity. | 02-04-2010 |
| 20100041865 | Conductive Polyaniline And Preparing Method Of The Same - Provided are novel conductive polyanilines and a preparing method thereof, the conductive polyanilines having a remarkably improved heat-melting property and a solubility in a general solvent while maintaining a relatively high electrical conductivity by means of synthesizing a substituted polyaniline copolymer via polymerizing a substituted aniline derivative with a non-substituted aniline derivative in a set ratio, and a novel preparing method thereof. | 02-18-2010 |
| 20110009595 | SOLVENT RESISTANT POLYMERS - What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials. | 01-13-2011 |
| 20110021741 | PROCESS FOR MAKING POLYAMINOPOLYPHENYL METHANES USING A MIXED SOLID ACID CATALYST SYSTEM - A method for preparing aromatic polyamines comprising (1) preparing a non-aqueous aminal solution; (2) contacting the non-aqueous aminal solution and an acidic siliceous catalyst to form a benzylamine intermediate; (3) contacting the benzylamine intermediate and an ion exchange resin catalyst based on a styrene-divinylbenzene copolymer to form an aromatic polyamine reaction mixture containing a polyaminopolyphenyl methane product; and (4) recovering the polyaminopolyphenyl methane product from the aromatic polyamine reaction mixture. The method, which may be practiced continuously, offers high 4,4′-methylene dianiline yield, reduced impurities, extended catalyst life, and, therefore, improved economics, when compared with many conventional methods to prepare polyaminopolyphenyl methanes. | 01-27-2011 |
| 20110092666 | Pyrene-containing norbornene methylene amine and polymer thereof, and method for manufacturing the polymer - The present invention discloses a pyrene-containing norbornene methylene amine which can be synthesized by 5-(amino methyl)bicycle[2.2.1]hept-2-ene (NBMA) and 1-bromopyrene. The pyrene-containing norbornene methylene amine can be used as a monomer for synthesizing a polymer containing pyrene side chain via Ring-Opening Metathesis Polymerization (ROMP). The polymer has good transmittance, optical and thermal properties. | 04-21-2011 |
| 20110218323 | PROCESS FOR PREPARING CYCLIC DIAMINES - The present invention relates to a process for preparing a cyclic diamine, comprising the reaction of at least one cyclic alkene with a gas mixture (G) comprising dinitrogen the subsequent conversion of monoxide to give at least one cyclic ketone and then converting the at least one cyclic ketone to a cyclic diamine. The invention also relates to the use of a cyclic diamine with primary and secondary amine functions thus obtained to prepare polyamides and polyurethanes. | 09-08-2011 |
| 20110269936 | Method for Producing Biocidal Polyguanidine, and Biocidal Polyguanidine - The inventions relate to antiseptic agents and the method for producing thereof and can be used as a broad-spectrum disinfectant in medicine, veterinary medicine, agriculture etc. | 11-03-2011 |
| 20110294977 | POLYALKYLENEPOLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - The invention relates to a process for the preparation of polyalkylenepolyamines by catalyzed alcohol amination, in which | 12-01-2011 |
| 20120077955 | HOLE TRANSPORT POLYMERS - There is provided a polymer made from a monomer having Formula I: | 03-29-2012 |
| 20130053537 | PROCESS FOR REGENERATING RANEY CATALYSTS - A process for regenerating Raney catalysts by treating the catalyst with liquid ammonia with a water content of less than 5% by weight and with hydrogen having a partial pressure of 0.1 to 40 MPa in the temperature range from 50 to 350° C. for at least 0.1 hour. | 02-28-2013 |
| 20130053538 | PROCESS FOR PREPARING EDFA AND/OR EDMFA AND DETA AND/OR TETA - A process for reacting ethylenediamine (EDA) with formaldehyde to give ethylenediamine-formaldehyde adduct (EDFA) and/or ethylenediamine-monoformaldehyde adduct (EDMFA), which comprises performing the reaction of FA with EDA at a temperature in the range from 20 to 70° C. | 02-28-2013 |
| 20130053539 | PROCESS FOR PREPARING EDDN AND/OR EDMN AND PROCESS FOR PREPARING DETA AND/OR TETA - A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, wherein the reaction mixture from the conversion of EDA, HCN and FA is cooled after leaving the reactor. | 02-28-2013 |
| 20130053540 | PROCESS FOR PREPARING TETA - A process for preparing TETA and/or DETA by the action of EDDN and/or EDMN with hydrogen in the presence of a catalyst, wherein the catalyst used is a catalyst of the Raney type and the pressure in the course of hydrogenation is in the range from 170 to 240 bar. | 02-28-2013 |
| 20130060002 | PROCESS FOR WORKING UP REACTION OUTPUTS FROM THE HYDROGENATION OF EDDN OR EDMN - A process is disclosed for separating the output from the reaction of EDDN or EDMN with hydrogen in the presence of THF, a catalyst, TETA or DETA, water, and optionally organic compounds having higher and lower boiling points than TETA or DETA. Hydrogen is removed, and the output is supplied to a distillation column DK1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than TETA or DETA, is removed from the top. A product comprising TETA or DETA is removed from the bottom and passed cinto a distillation column DK2, removing THF. A stream comprising TETA or DETA passes from the bottom of DK2. The DK1 azeotrope is condensed. Phase separation is induced by the addition of an organic solvent essentially immiscible with water, and the mixture is separated. The organic phase is recycled into DK1 and the water phase is discharged. | 03-07-2013 |
| 20130079492 | PROCESS FOR PREPARING EDDN AND EDMN - A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and EDDN and/or EDMN at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water. | 03-28-2013 |
| 20130085258 | CROSSLINKABLE ARYLAMINE COMPOUNDS AND CONJUGATED OLIGOMERS OR POLYMERS BASED THEREON - Crosslinkable arylamine compounds, oligomers and polymers prepared from such crosslinkable arylamine compounds, films and coatings, and multilayer electronic devices comprising such films are disclosed. | 04-04-2013 |
| 20130090452 | PROCESS FOR PREPARING EDDN AND/OR EDMN BY CONVERSION OF FACH AND EDA - A process for reacting formaldehyde cyanohydrin (FACH) with ethylenediamine (EDA) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less. | 04-11-2013 |
| 20130090453 | Process for preparing TETA and DETA - A process for preparing TETA and/or DETA by hydrogenating EDDN and/or EDMN with hydrogen in the presence of a catalyst, which comprises preparing EDDN and/or EDMN from FA, HCN and EDA in the presence of toluene as a solvent and performing the hydrogenation in suspension mode in the presence of THF. | 04-11-2013 |
| 20140121350 | POLYIMIDE-GRAPHENE COMPOSITE MATERIAL AND METHOD FOR PREPARING SAME - The present disclosure relates to a polyimide-graphene composite material and a method for preparing same. More particularly, it relates to a polyimide-graphene composite material prepared by adding modified graphene and a basic catalyst during polymerization of a polyimide precursor so as to improve mechanical strength and electrical conductivity and enable imidization at low temperature and a method for preparing same. | 05-01-2014 |
| 20150038670 | Process for Preparing Polycarbamate and Reaction Product Thereof - A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process. | 02-05-2015 |
| 20150368531 | Amine Composition - The present invention provides novel polymeric amine compositions employing amine compounds having multiple tertiary amine groups. Methods of making these new compositions are also disclosed. Amine compositions and amine-epoxy compositions employing the polymeric amine compositions of the present invention are also provided. | 12-24-2015 |
| 20160053409 | Nanofibers from Substituted Polyaniline and Methods of Synthesizing and Using the Same - Embodiments of this invention are directed to substituted polyaniline nanofibers and methods of synthesizing and using the same. The invention is also directed to polyaniline derivatives that can be synthesized without the need for templates or functional dopants by using an initiator as part of a reaction mixture. | 02-25-2016 |
| 20160251304 | ETHERAMINES BASED ON ALKOXYLATED GLYCERINE OR TRIMETHYLOLPROPANE | 09-01-2016 |
| 528423000 | Reactant contains nitrogen as a ring member of a heterocyclic ring | 19 |
| 20080269461 | Polymeric Carbazole Compounds - A polymeric carbazole compound comprising a monomer unit of formula (I): is disclosed, wherein x and y are equal to zero or 1, and n is an integer equal to or larger than zero. P represents a phenyl group, and C | 10-30-2008 |
| 20090030176 | Aminoquinoxaline Compound, Polyaminoquinoxaline Compound, and Use Thereof - An aminoquinoxaline compound represented by the following formula (1a), and a polyaminoquinoxaline compound obtained by polymerizing the aminoquinoxaline compound, | 01-29-2009 |
| 20090062506 | CATALYST USING HYDRAZONE COMPOUND, HYDRAZONE POLYMER COMPOUND, AND CATALYST USING HYDRAZONE POLYMER COMPOUND - A catalyst obtained by calcining a hydrazone metal complex in which at least one catalytic metal species is coordinated to a hydrazone compound represented by a General Formula (1) below, a hydrazone polymer compound including at least a structural unit derived from a hydrazone compound represented by the General Formula (1) below as a repeating unit, and a catalyst obtained by calcining a hydrazone polymer metal complex in which at least one catalytic metal species is coordinated to a hydrazone polymer compound including at least a structural unit derived from a hydrazone compound represented by the General Formula (1) below: | 03-05-2009 |
| 20090062507 | HYDRAZONE COMPOUND, HYDRAZONE COMPOUND FOR FORMING COMPLEX, LIGAND FOR FORMING METAL COMPLEX, AND MONOMER FOR MANUFACTURING POLYMER COMPOUND - A hydrazone compound represented by a General Formula (1) below, a hydrazone compound for forming a metal complex, which is represented by the General Formula (1) below and forms a metal complex by coordination to at least one metal species, a ligand for forming a metal complex including the hydrazone compound, and a monomer for manufacturing a polymer compound including the hydrazone compound: | 03-05-2009 |
| 20090247730 | METHOD OF PRODUCING A POLYMER-PROCESSED ORGANIC FINE PARTICLE DISPERSION - A method of producing a polymer-processed organic fine particle dispersion, having a step of: feeding an organic fine particle dispersion containing a polymerizable compound in a channel and polymerizing the polymerizable compound during the flow of the dispersion in the channel. | 10-01-2009 |
| 20090270589 | Bis-Terpyridine Monomer, Production Process Thereof, Polymer Material Derived from the Monomer, and Electrochromic Device - Provided are (1) a terpyridine monomer that has a strong ability to coordinate with metal atoms, and (2) a polymer material that can be readily switched between a colored state and a colorless state by controlling the electrical potential applied to it and that can be processed. | 10-29-2009 |
| 20090312520 | Triazine-Based Monomeric Compound, Di-Triazine Compound, and Degradable Polymer - A triazine-based monomeric compound represented by the following formula (I): | 12-17-2009 |
| 20100152416 | METHODS FOR PRODUCING AND PURIFYING 2-ARYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINE COMPOUNDS, THE PURIFIED MONOMERS, AND POLYMERS DERIVED THEREFROM - Disclosed herein is a method for producing a purified 2-aryl-3,3-bis(4-hydroxyaryl) phthalimidine of formula (I) | 06-17-2010 |
| 20100184942 | Hybrid Host Materials For Electrophosphorescent Devices - Compounds (including polymers) for use in hybrid host materials which can be used in electroluminescent devices. The compounds comprise at least one electron-transporting moiety and at least one hole-transporting moiety which are joined by a flexible linker. Hybrid host materials comprising the compounds exhibit stability against phase separation, elevated glass transition temperature, morphological stability against crystallization, and isolation of the electron transporting moiety and hole transporting moiety π-systems. | 07-22-2010 |
| 20100190956 | POLYANILINE VIOLOGEN CHARGE TRANSFER COMPLEXES CONTAINING INTERMEDIATE TRANSFER MEMBERS - An intermediate transfer media, such as a belt, that includes a polyaniline viologen charge transfer complex. | 07-29-2010 |
| 20100197888 | Method for Manufacturing Linear Polyethylenimine (PEI) for Transfection Purpose and Linear PEI Obtained with Such Method - The invention concerns a method of synthesising and preparing linear polyethylenimine (PEI) for use as a transfection vector, and the product obtained with such a method. It comprises drying a monomer 2-ethyl-2-oxazoline and polymerising said monomer for obtaining poly (2-ethyl-2-oxazoline) (PEOX) by: using acetonitrile as solvent, adding a dried initiator of the reaction of polymerisation, and mixing them altogether, purifying said obtained PEOX by evaporation, while performing at least three times successive washing/precipitation steps with methanol and diethyl ether and corresponding filtrations, in order to obtain (i), by performing 1H-NMR tests, correct identification of said PEOX polymer, confirmation of absence of monomer to a level <1.0% and confirmation of absence of solvent to a level <5.0% and (ii), by performing Gel Permeation Chromatography, a mean of molecular weight (Mw)>23,000 Da and polydispersity (Mw/Mn) of said PEOX<1.5, hydrolysing said PEOX. | 08-05-2010 |
| 20100204438 | METHOD FOR PRODUCING TEDA DERIVATIVES - The present invention relates to a process for preparing triethylenediamine (TEDA) derivatives, comprising the following steps:
| 08-12-2010 |
| 20110130540 | PROCESSES FOR THE SYNTHESIS OF 3-HYDROXYGLUTARONITRILE - There are disclosed high yield and high productivity processes for preparing 3-hydroxyglutaronitrile by reacting allyl cyanide epoxide with a basic aqueous solution of a cyanide source. | 06-02-2011 |
| 20120077956 | Method of Producing Polymeric Phenazonium Compounds - A process of making a polymeric phenazonium compound having the general formula: | 03-29-2012 |
| 20140163198 | Method of Producing Polymeric Phenazonium Compounds - A process of making a polymeric phenazonium compound having the general formula: | 06-12-2014 |
| 20140371421 | CARBAZOLE POLYMER - A carbazole polymer including a repeating unit represented by formula (1) and having excellent one electron oxidation-state stability. | 12-18-2014 |
| 20190144606 | METHOD OF PRODUCING POWDER-FORM POLYMER USING 1-(p-TOLYLSULFONYL) PYRROLE MONOMER | 05-16-2019 |
| 528424000 | Heterocyclic nitrogen-containing ring contains a single atom of nitrogen and two atoms of carbon as ring members | 2 |
| 20140163199 | PREPARING CHLORIDE-FREE POLYETHYLENEIMINES - In a method of preparing polyalkyleneimines from alkyleneimines in the presence of a liquid solvent, and a catalyst, the preparing is effected semi-discontinuously in one reaction container. The preparing is optionally effected in the presence of further additives. | 06-12-2014 |
| 20160185906 | ETHYLENEIMINE POLYMER AND METHOD FOR PRODUCING THE SAME - Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and has a low water content, and a method for producing the same. | 06-30-2016 |
