Patent application number | Description | Published |
20090091243 | Substituted Ethynyl Gold-Nitrogen Containing Heterocyclic Carbene Complex and Organic Electroluminescent Device Using the Same - The present invention provides a substituted ethynyl gold-nitrogen containing heterocyclic carbene complex represented by the general formula (1): | 04-09-2009 |
20090258211 | POLYIMIDE FILM MADE OF MULTICOMPONENT POLYIMIDE AND PROCESS OF PRODUCING THE SAME - A polyimide film made of a multicomponent polyimide comprising two or more different polyimide components including (A) a polyimide component A being raw materials of a polyimide A and/or a polyimidation product of the raw materials and (B) a polyimide component B being raw materials of a polyimide B and/or a polyimidation product of the raw materials. The polyimide components A and B are different, for example, such that the absolute difference between solubility parameter SP | 10-15-2009 |
20100116131 | METHOD FOR MANUFACTURING POLYIMIDE ASYMMETRIC MEMBRANE, AND POLYIMIDE ASYMMETRIC MEMBRANE - A process of producing an asymmetric membrane of multicomponent polyimide. The process includes the steps of (1) preparing a multicomponent polyimide blend solution by mixing a polyimide component A having a number-averaged polymerization index N | 05-13-2010 |
20100237770 | GOLD COMPLEX AND PROCESS FOR PREPARING THE SAME, AND ORGANIC ULTRAVIOLET ELECTROLUMINESCENT DEVICE USING SAID GOLD COMPLEX - The present invention is to provide a gold complex represented by the formula (1): | 09-23-2010 |
20110000367 | POLYIMIDE GAS SEPARATION MEMBRANE AND GAS SEPARATION METHOD - Disclosed are a gas separation membrane and a gas separation method in which at least one species of organic vapor is separated and recovered from an organic vapor mixture using the gas separation membrane. The gas separation membrane is made of an aromatic polyimide composed of a tetracarboxylic acid component consisting of an aromatic ring-containing tetracarboxylic acid and a diamine component comprising 10 to 90 mol % of a combination of (B1) 3,4′-diaminodiphenyl ether and (B2) 4,4′-diaminodiphenyl ether at a B1 to B2 molar ratio, B1/B2, ranging from 10/1 to 1/10, and 10 to 90 mol % of other aromatic diamine. | 01-06-2011 |
20110048229 | SOLVENT-RESISTANT ASYMMETRIC HOLLOW FIBER GAS SEPARATION MEMBRANE, AND METHOD FOR PRODUCTION THEREOF - An asymmetric hollow fiber gas separation membrane obtained by subjecting an asymmetric hollow fiber polyimide membrane to a heat treatment having a maximum temperature of from 350 to 450° C., wherein the asymmetric hollow fiber polyimide membrane is formed with a polyimide essentially having a repeating unit represented by a general formula (1); | 03-03-2011 |
20110232484 | ASYMMETRIC GAS SEPARATION MEMBRANE AND PROCESS FOR GAS SEPARATION - There is disclosed an asymmetric gas separation membrane exhibiting both improved gas separation performance and improved mechanical properties, which is made of a soluble aromatic polyimide comprised of a repeating unit represented by general formula (1): | 09-29-2011 |
20120031831 | HOLLOW-FIBER ELEMENT FOR ORGANIC-VAPOR SEPARATION - In a hollow fiber element constituting a separation membrane module for separating an organic vapor, at least one end part of a fiber bundle consisting of multiple hollow fiber membranes having a selective permeability is fixed and bound with a tube sheet formed by a cured material, in which an epoxy composition (A) has been cured by using a hardener (B). A glass transition temperature of said cured material is not less than 160° C., a minimum elongation at break thereof is not less than 7.0%, and an elution ratio thereof is less than 5%. For this reason, the hollow fiber element has enough endurance to retain a gas-tightness of an internal space of the hollow fiber membrane and an external space of the hollow fiber membrane even in use under organic vapor with an elevated temperature and high pressure. | 02-09-2012 |