Class / Patent application number | Description | Number of patent applications / Date published |
528206000 | Phenolic reactant contains at least one carboxylic acid group or is derivative thereof | 21 |
20100004422 | PROCESS FOR THE SYNTHESIS OF ETHERS OF AROMATIC ACIDS - Ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and an amino acid ligand that coordinates to copper. | 01-07-2010 |
20100048856 | PROCESS FOR THE SYNTHESIS OF ETHERS OF AROMATIC ACIDS - Ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and a Schiff base ligand that coordinates to copper. | 02-25-2010 |
20100234555 | BIOCOMPATIBLE POLYMERS FOR MEDICAL DEVICES - The present invention relates to new classes of monomeric compounds, which may be polymerized to form novel biodegradable and bioresorble polymers and co-polymers. These polymers and co-polymers, while not limited thereto, may be adapted for radioopacity and are useful for medical device applications and controlled release therapeutic formulations. | 09-16-2010 |
20110060116 | PROCESS FOR THE SYNTHESIS OF FLUORINATED ETHERS OF AROMATIC ACIDS - New fluorinated ethers of aromatic acids and diesters are disclosed. These compositions can be applied to, e.g., fibers, yarns, carpets, garments, films, molded parts, paper and cardboard, stone, and tile to impart soil, water and oil resistance. By incorporating the fluorinated ethers of aromatic acids, or diesters thereof, into polymer backbones, more lasting soil, water and oil resistance, as well as improved flame retardance, can be achieved. | 03-10-2011 |
20130085253 | Solid-Stage Polymerization System for a Liquid Crystalline Polymer - A multi-stage process for forming a liquid crystalline polymer is provided. More particularly, the process includes acetylating one or more precursor monomers and melt-polymerizing the acetylated monomers to form a prepolymer in the form of a solid particulate material. Thereafter, the prepolymer is solid-state polymerized in a fluidized bed reactor that contains a porous surface (e.g., bed, plate, grate, etc.) on which the prepolymer is supported. While supported by this porous surface, the prepolymer can become “fluidized” with a heated stream of a gas (e.g., nitrogen). In this manner, a sufficient degree of turbulence is created to distribute heat evenly around the prepolymer and cause it to rapidly reach the target reaction temperature. | 04-04-2013 |
528207000 | 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 | 3 |
20080287640 | PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE - A method of preparing polycarbonate includes a steps of providing a melt reaction mixture and allowing the melt reaction mixture to react to build molecular weight, thereby preparing the polycarbonate. The melt reaction mixture has a dihydroxy compound, an ester substituted diaryl carbonate mixture, and a melt transesterification catalyst where the ester substituted diaryl carbonate mixture may contain acid-substituted phenol. The method also includes the step of adjusting the molar ratio of acid-substituted phenol, if present, to melt transesterification catalyst (acid-substituted phenol/catalyst) in the melt reaction mixture to an amount of less than 10. | 11-20-2008 |
20140171613 | PROCESS FOR THE PRODUCTION OF POLYETHERIMIDES - A process for preparing polyetherimides at higher production rates and a liquid reaction mixture are disclosed. | 06-19-2014 |
20160009859 | BISPHENOL POLYETHER OLIGOMERS, METHODS OF MANUFACTURE, AND POLYCARBONATES MADE THEREFROM | 01-14-2016 |
528208000 | Nitrogen-containing reactant | 12 |
20080269455 | Process for Production of Polybenzazole Polymer and the Polymer - PROBLEMS The present invention relates to a process for producing a polybenzoxazole polymer and provides a process for producing the polybenzoxazole polymer within a short reaction time.
| 10-30-2008 |
20080275206 | POLY(CARBONATE-CO-UREA) COPOLYMERS AND MELT TRANSESTERIFICATION METHOD OF PREPARING THESE COPOLYMERS - Disclosed herein is a poly(carbonate-co-urea-co-ester) copolymer comprising incorporated urea compound, dihydroxy compound and diacid compound residues. Also disclosed herein is a poly(carbonate-co-urea) copolymer comprising incorporated urea compound and dihydroxy compound residues. | 11-06-2008 |
20100010189 | GAS-PHASE PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARONITRILES - A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process. | 01-14-2010 |
20110137007 | METHOD FOR PRODUCING AN AMINOHYDROXYBENZOIC ACID-TYPE COMPOUND - Provided is a method for efficiently producing a 3-amino-4-hydroxybenzoic acid-type compound by culturing a coryneform bacterium that has a gene encoding a mutated aspartokinase not subject to feedback inhibition, and that is transformed with a recombinant vector containing a DNA encoding a protein having an activity to form 3-amino-4-hydroxybenzoic acid from dihydroxyacetone phosphate and aspartate semialdehyde. | 06-09-2011 |
20110275782 | BIORESORBABLE POLYMERS SYNTHESIZED FROM MONOMER ANALOGS OF NATURAL METABOLITES - New bioresorbable polymers are synthesized from monomer analogs of natural metabolites In particular, polymers are polymerized from analogs of amino acids that contribute advantageous synthesis, processing and material properties to the polymers prepared therefrom, including particularly advantageous degradation profiles | 11-10-2011 |
20120116046 | SYNTHESIS OF DIAMINODINITROPYRIDINE - A process for the preparation of diaminodinitropyridine or diaminodinitrobenzene by contacting an aminopyridine or aminobenzene with oleum and nitric acid, wherein the improvement comprises adding at least about 1% molar excess of nitric acid, based upon the aminopyridine or aminobenzene, with stirring for at least two hours to form first the intermediate sulfonic acid, and then diaminodinitropyridine or diaminodinitrobenzene, and use of such products in the preparation of rigid rod polymers is disclosed. | 05-10-2012 |
20120190813 | LIQUID-CRYSTAL POLYMER AND MOLDED ARTICLES - To provide an easily-manufactured liquid-crystalline polymer having high thermal conductivity, as well as a molded article that is formed of the liquid crystalline polymer and has a property of being highly mechanical. A liquid-crystalline polymer is used that is formed by polymerizing monomers having an asymmetrical molecular structure, in which the enthalpy of fusion ΔH measured by way of DSC (Differential Scanning calorimetry) is greater than or equal to 2.5 J/g (joules per gram) and less than or equal to 10 J/g, and the inherent viscosity (I.V.) is greater than or equal to 5 dl/g and less than or equal to 7 dl/g. It is preferable for the monomer having asymmetrical molecular structure to be at least one selected from a group consisting of 4-hydroxybenzoic acid (HBA), 6-hydroxy-2-naphthoic acid (HNA), N-acetyl-p-aminophenol (APAP), and 4-hydroxy-4′-biphenylcarboxylic acid (HBCA). | 07-26-2012 |
20120302719 | BIORESORBABLE POLYMERS SYNTHESIZED FROM MONOMER ANALOGS OF NATURAL METABOLITES - New bioresorbable polymers are synthesized from monomer analogs of natural metabolites In particular, polymers are polymerized from analogs of amino acids that contribute advantageous synthesis, processing and material properties to the polymers prepared therefrom, including particularly advantageous degradation profiles | 11-29-2012 |
20140058057 | Polyimide oligomers - Polyimide oligomers of the general formula: | 02-27-2014 |
20140357830 | 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) | 12-04-2014 |
20140364579 | Escherichia coli Capable of Producing 3-Amino-4-Hydroxybenzoic Acid - The present invention provides a method for conveniently and inexpensively producing an amino-hydroxybenzoic acid-type compound such as 3-amino-4-hydroxybenzoic acid by utilizing | 12-11-2014 |
20150133625 | POLYETHERIMIDE COMPOSITIONS AND METHODS FOR THE MANUFACTURE AND USE THEREOF - This disclosure relates to polyetherimide compositions whose residual phenolic monomers exhibit little or no estradiol binding activity. Also disclosed are methods for making the disclosed polyetherimides and articles of manufacture comprising the disclosed polyetherimides. | 05-14-2015 |
528209000 | With nonphenolic compound having at least two hydroxyl groups or salts thereof as reactant | 1 |
20100016539 | AROMATIC POLYESTER AND MANUFACTURING PROCESS THEREOF - To provide an aromatic polyester which is formed into a film having excellent heat resistance, color, mechanical properties, dimensional stability and gas barrier properties and a manufacturing process thereof;
| 01-21-2010 |