| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528212000 | Phenolic reactant contains a single phenolic -OH group or a single inorganic phenolate thereof | 16 |
| 20080269456 | MULTIFUNCTIONAL CVD COATINGS - Multifunctional reactive polymers created by chemical vapor deposition (CVD) and methods of making such polymeric systems are provided. Such polymers provide multifunctional surfaces which can present two or more different molecules (e.g. biological ligands) in controlled ratios. Polymers may include compositional gradients allowing attached ligands to be presented as continuous gradients across a surface. The polymer compositions are modularly designable and applicable to a wider range of applications, including biomedical devices and diagnostic systems. | 10-30-2008 |
| 20090163693 | Photoactive aromatic polymers and preparation methods thereof - A photoactive aromatic polymer having high fluorescence, including an aromatic compound as a backbone, through the polymerization of aromatic polycyclic monomers and a photoactive aromatic polymer having high conductivity and fluorescence even in a state in which the photoactive aromatic polymer is formed into a thin film. | 06-25-2009 |
| 20090286953 | ALKYLPHENOL-TERMINATED COPOLYCARBONATES, PROCESSES FOR PREPARING THE SAME, MOLDING COMPOSITIONS CONTAINING THE SAME, AND ARTICLES PREPARED THEREFROM - Copolycarbonates comprising alkylphenolchain terminator groups for adjusting the molecular weight, compositions of these copolycarbonates with additives chosen from the group of heat stabilizers and mould release agents, the use thereof for the production of moldings and moldings obtained therefrom. | 11-19-2009 |
| 20100056748 | Novel star polymer and coupling agent for anionic polymerization - [PROBLEM] To provide a novel star polymer useful as resist materials with high sensitivity and high resolution, and a novel coupling agent for anionic polymerization for synthesizing the polymer. | 03-04-2010 |
| 20110301321 | METHOD OF MAKING POLY(ARYLENE ETHER) COMPOSITIONS - A method of making a thermoplastic composition comprises melt extruding a poly(arylene ether) powder to form a first pelletized poly(arylene ether); and melt extruding the first pelletized poly(arylene ether) to form a second pelletized poly(arylene ether), wherein the second pelletized poly(arylene ether) has a level of butyraldehyde less than the first pelletized poly(arylene ether) and the second pelletized poly(arylene ether) has a level of trimethylanisole less than the first pelletized poly(arylene ether). | 12-08-2011 |
| 20130172514 | "PROCESS FOR PRODUCING CYCLOALKYLAROMATIC COMPOUNDS" - In a process for producing a cycloalkylaromatic compound, an aromatic compound, hydrogen and at least one diluent are supplied to a hydroalkylation reaction zone, such that the weight ratio of the diluent to the aromatic compound supplied to the hydroalkylation reaction zone is at least 1:100. The aromatic compound, hydrogen and the at least one diluent are then contacted under hydroalkylation conditions with a hydroalkylation catalyst in the hydroalkylation reaction zone to produce an effluent comprising a cycloalkylaromatic compound. | 07-04-2013 |
| 20130211036 | Oxidation of Alkylbenzenes - A process for oxidizing a composition comprising contacting an alkylbenzene of the general formula (I): | 08-15-2013 |
| 20130225783 | POLY(PHENYLENE ETHER) PROCESS - A method of purifying a poly(phenylene ether) is described. The method includes mixing a poly(phenylene ether) solution comprising a poly(phenylene ether) and a poly(phenylene ether) solvent with first washing solvents including a C1-C4 alkanol and water to form a first liquid phase including poly(phenylene ether) and poly(phenylene ether) solvent, and a second liquid phase comprising C1-C4 alkanol and water, and separating the first liquid phase from the second liquid phase. The first and second liquid phases combined comprise about 60 to about 95 weight percent poly(phenylene ether) solvent, about 4 to about 32 weight percent C1-C4 alkanol, and about 1 to about 36 weight percent water. When optionally combined with evaporative removal of the poly(phenylene ether) solvent, the method reduces C1-C4 alkanol usage compared to the antisolvent precipitation method, and it produces poly(phenylene ether) having reduced catalyst metal ion residue and reduced color. | 08-29-2013 |
| 20160145384 | METHOD FOR PRODUCING OXYMETHYLENE COPOLYMER - Provided is a method for producing an oxymethylene copolymer continuously and with high polymerization yield, whereby it becomes possible to improve heat stability and the formaldehyde generation amount while keeping MD resistance and folding endurance. Provided is a method for producing an oxymethylene copolymer, which comprises the steps of: carrying out a copolymerization reaction of a monomer raw material comprising trioxane and 1,3-dioxolane in an amount of 7.0 to 22 mass % relative to the amount of trioxane in the presence of boron trifluoride in an amount of 0.03 to 0.10 mmol relative to 1 mol of trioxane and sterically hindered phenol in an amount of 0.006 to 2.0 mass % relative to the amount of trioxane; and adding a polymerization terminator to a reaction system at the point of time at which the polymerization yield of the copolymer becomes 92% or more to terminate the polymerization. | 05-26-2016 |
| 528214000 | Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom | 7 |
| 20090176962 | Process for the Production of Phenylene Ether Oligomer - A process for producing a phenylene ether oligomer comprising oxidative polymerization of a specific bivalent phenol compound and a specific monovalent phenol compound in an aromatic hydrocarbon solvent,
| 07-09-2009 |
| 528215000 | Material is a nitrogen-containing compound | 5 |
| 20110288262 | HIGH MOLECULAR WEIGHT POLY(2,6-DIMETHYL-1,4-PHENYLENE ETHER) AND PROCESS THEREFOR - A poly(2,6-dimethyl-1,4-phenylene ether) having a high molecular weight and a reduced content of low molecular weight species can be prepared by a method that includes specific conditions for the oxidative polymerization, chelation, and isolation steps. The poly(2,6-dimethyl-1,4-phenylene ether) is particularly useful for the fabrication of fluid separation membranes. | 11-24-2011 |
| 20120149865 | NOVEL METHOD FOR PRODUCING POLYPHENYLENE ETHER - Method for producing polyphenylene ether, comprising preparing a polymerization solution of 10-25 parts by mass of a phenolic compound (M) and 75-90 parts by mass of an aromatic solvent (A) with the total of the compound and the solvent being 100 parts by mass, and 0.1-10 parts by mass of a catalyst (C) containing a metal salt; performing oxidative polymerization of the phenolic compound (M) by passing oxygen-containing gas through polymerization solution; stopping polymerization by mixing aqueous chelating agent solution into polymerization solution; subjecting a diphenoquinone compound produced as a by-product to quinone binding process or removal by reduction; and obtaining polyphenylene ether by separating aqueous phase through liquid-liquid separation. In the method for producing a polyphenylene ether, 0.001-0.004 part by weight of an ion catalyst (D) is added into the polymerization solution before the liquid-liquid separation. | 06-14-2012 |
| 20120309927 | Polyarylene Ether and Method for Preparing the Same - Polyarylene ether is polymerized using a dissolving agent including anisole, wherein the polyarylene ether includes about 1 to about 3,000 ppm of anisole. | 12-06-2012 |
| 20150038667 | POLY(PHENYLENE ETHER) COPOLYMER AND METHOD OF MAKING - A poly(phenylene ether) copolymer comprising about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of at least 8,000 atomic mass units, is disclosed. Also disclosed is a method of preparing the poly(phenylene ether) copolymer, the method comprising oxidatively copolymerizing a monomer mixture comprising about 5 to 40 mole percent 2-phenylphenol and about 60 to about 95 mole percent 2,6-dimethylphenol in the presence of a solvent, molecular oxygen, and a polymerization catalyst comprising a metal ion and at least one amine ligand to form a solution of the poly(phenylene ether) copolymer in the solvent, wherein a ratio of total moles of 2-phenylphenol and 2,6-dimethylphenol to moles of metal ion is about 10:1 to about 1200:1. | 02-05-2015 |
| 20150141610 | PROCESS FOR PRODUCING POLYPHENYLENE ETHER HELPING TO IMPROVE SAFETY AND YIELD - A process for producing polyphenylene ether involves to keep a combustible solvent at a gaseous concentration below the minimums of explosion, to keep oxygen gas supplied at a gaseous concentration below the limiting oxygen concentration (LOC) of the solvent, and to make use of a reactor having a rotary-sealed mixer sealed with magnetic rotary feedthroughs to prevent static electricity generated, and then to improve safety and yield thereof. | 05-21-2015 |
| 528217000 | Material contains a metal atom | 1 |
| 20160159980 | AQUEOUS-PHASE CATALYST COMPOSITIONS AND METHOD FOR PREPARING POLYPHENYLENE ETHER - An aqueous-phase catalyst composition including a metal ion including copper, nickel, manganese or iron and a water-soluble linear polymer having a molecular weight ranging from 1,000 to 20,000 is provided. The metal ion and the water-soluble linear polymer have a weight ratio of 1:1 to 1:5. A method for preparing polyphenylene ether including providing the disclosed aqueous-phase catalyst composition and adding phenolic monomers to the aqueous-phase catalyst composition to proceed to a polymerization reaction to prepare polyphenylene ether is also provided. | 06-09-2016 |
