| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528425000 | FROM ORGANIC OXYGEN-CONTAINING REACTANT | 18 |
| 20100036087 | PRODUCTION METHOD OF POLYCARBONATE RESIN - The invention aims at providing a process for the production of polycarbonate resin which is suppressed in discoloration and reduced in the content of crystalline foreign substance, gel, and so on. The invention relates to a process for the production of polycarbonate resin from raw materials, namely, an aromatic dihydroxyl compound and a carbonic diester through continuous transesterification by the use of a production unit provided with plural reactors, which comprises producing continuously an aromatic polycarbonate resin having a viscosity-average molecular weight of 10,000 to 20,000 for a prescribed time before the termination of the continuous transesterification, discharging the polymerization fluid, cleaning the insides of the reactors with a mixture of the raw materials and then with an aromatic monohydroxy compound, feeding the raw materials and a catalyst to the reactors after the internal temperatures and degrees of vacuum of the reactors have reached respectively to levels falling within −5% to +5% of the levels preset for manufacturing operation, and then initiating manufacturing operation again. | 02-11-2010 |
| 20090143564 | PROCESSES FOR THE POLYMERIZATION OF TRIMETHYLENE CARBONATE TO POLY(TRIMETHYLENE GLYCOL CARBONATE TRIMETHYLENE GLYCOL ETHER) DIOL - This invention relates to solventless processes for the polymerization of an unsubstituted or substituted trimethylene carbonate to an unsubstituted or substituted poly(1,3-propanediol carbonate 1,3-propanediol ether)diol, using one or more solid acid catalysts. | 06-04-2009 |
| 20100029899 | MULTIBRANCHED POLYOXYALKYLENE DERIVATIVE - An object of the present invention is to provide a novel multibranched polyoxyalkylene derivative, and an intermediate for the production thereof. Specifically, the object is to provide a multibranched polyoxyalkylene derivative which can keep a high activity of a bio-related substance modified with the multibranched polyoxyalkylene derivative and which can easily produce the modified substance; an intermediate thereof; and a bio-related substance to which the multibranched polyoxyalkylene derivative is bonded. | 02-04-2010 |
| 20090118464 | PREPARATION OF POLYTRIMETHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF - This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst. | 05-07-2009 |
| 20090118465 | PREPARATION OF POLYTRIMTHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF - This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof by a polycondensation reaction using at least one acid catalyst, wherein the temperature of the reaction is controlled such that the average temperature during the first half of the reaction is higher than the average temperature during the second half of the reaction. | 05-07-2009 |
| 20080214780 | METHOD OF PRODUCING STRUCTURAL COMPONENTS HAVING IMPROVED TOUGHNESS - A method of producing a structural component comprising manufacturing a structural component from a moisture absorbable material the toughness of which increases with increasing moisture absorption and subsequently subjecting the structural component to at least one of elevated temperature and humidity for a period of time such that the structural component attains a predetermined moisture content and distribution. | 09-04-2008 |
| 20100311942 | Glycerol-based product, process for obtaining same and use thereof in the manufacturing of dichloropropanol - The invention relates to a glycerol-based product comprising at least one nitrogen-containing compound and of which the total content of nitrogen-containing compound expressed as elemental nitrogen (N) is less than or equal to 1 g of nitrogen (N)/kg of product, to a process for obtaining glycerol, and to its use in the manufacture of dichloropropanol and of derived products such as epichlorohydrin and products derived from epichlorohydrin. | 12-09-2010 |
| 20090036645 | Carbonate copolymers - Copolymer compositions are provided which include a cyclic monomer and an aromatic cyclic carbonate. The copolymer may be produced, in embodiments, by a ring-opening polymerization reaction initiated by the aromatic cyclic carbonate. The resulting copolymer may be utilized in producing medical devices, drug delivery devices, and/or coatings for medical devices. | 02-05-2009 |
| 20110152498 | PROCESSES FOR PRODUCING POLYTRIMETHYLENE ETHER GLYCOL AND COPOLYMERS THEREOF - Processes for producing polytrimethylene ether glycol and copolymers thereof are provided wherein, by condensing and recycling at least a portion of the vapor phase produced as the reaction progresses, the yield loss and polymer color are reduced. | 06-23-2011 |
| 20120157657 | PROCESS FOR THE PREPARATION OF POLYALKYLENE ETHER GLYCOL - Polyalkylene ether glycol or copolymer thereof are prepared by contacting at least one alkanediol with a alkanediol containing cyclic sulfate. | 06-21-2012 |
| 20120157656 | POLYALKYLENE GLYCOL-BASED POLYMER AND PROCESS FOR PRODUCING THE SAME - The present invention has an object to provide a polyalkylene glycol-based polymer that has high anti-soil redeposition ability and high compatibility with surfactants in washing treatment, and a process for producing the same. The present invention is a polyalkylene glycol-based polymer comprising a plurality of added oxyalkylene groups, the polyalkylene glycol-based polymer obtained by polymerizing a polyalkylene glycol-based compound having a structure unit including the oxyalkylene groups at or near a terminal of a molecule and a monomer material including a carboxyl group-containing monomer, under the condition that a mass ratio between the polyalkylene glycol-based compound and the carboxyl group-containing monomer is (95:5) to (60:40), wherein the structure unit including the oxyalkylene groups is represented by the following formula (1); | 06-21-2012 |
| 20100204439 | PROCESSES FOR MAKING POLY(TRIMETHYLENE ETHER) GLYCOL USING ORGANOPHOSPHOROUS COMPOUND - Processes for preparing poly(trimethylene ether)glycol-based polymers using an organophosphorous compound are provided. | 08-12-2010 |
| 20100261870 | METHOD FOR PRODUCING POLYETHER ALCOHOLS - The invention provides a process for preparing polyether alcohols by adding alkylene oxides onto H-functional starter substances, of which at least one is solid at room temperature in a reaction vessel, by feeding the starting components continuously to the reaction vessel, which comprises preparing a paste from the solid starter substance and feeding this paste continuously to the reaction vessel. | 10-14-2010 |
| 20090018309 | Method for Producing Aromatic Compound Polymer - A method for producing an aromatic compound polymer comprising oxidatively polymerizing one or more of aromatic compound(s) having two or more hydrogen atoms directly connected to aromatic ring(s), in the presence of an oxidizing agent, wherein the method employs a catalyst composed of a transition metal complex or a catalyst prepared from a transition metal complex and an activating agent, and said catalyst has a parameter P defined by the following formula (A) of 0.50 or more, and a parameter Eo defined by the following formula (B) of 0.50 [V] or more: | 01-15-2009 |
| 20100324261 | HIGHLY FUNCTIONAL POLYETHEROLS AND THE PRODUCTION AND USE THEREOF - The present invention relates to a process for preparing high-functionality polyetherols by reacting at least one trifunctional or higher-functionality alcohol and if appropriate further di- and/or monofunctional alcohols and/or modifying reagents, with the aid of acidic catalysts, where the trifunctional or higher-functionality alcohol is not glycerol. The present invention further relates to high-functionality polyetherols obtainable by such a process and to the use of these high-functionality polyetherols as adhesion promoters, thixotropic agents, rheology modifiers of polymers, phase transfer reagents, micro- or nanocontainers for biologically active compounds, for example for active medical ingredients, biocides, herbicides or fungicides, as pigment dispersants, an additive in printing inks or as structural units for preparing polyaddition or polycondensation polymers or for treatment of seed. | 12-23-2010 |
| 20110218324 | PREPARING POLYETHER ALCOHOLS - In a process for preparing a polyether alcohol d1) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and a molecular weight Mn of not more than 600 g/mol with b) an alkylene oxide by using c) a catalyst, said reaction is carried out in the presence of a polyether alcohol d) having a hydroxyl number of 100-800 mg KOH/g and a functionality of 1.5 to 8. | 09-08-2011 |
| 20120101252 | STABILIZATION OF POLYOLS - The invention relates to a method of stabilizing polyols and also mixtures containing polyols and stabilizers. | 04-26-2012 |
| 20110160429 | Stable Ethylsilicate Polymers - An stable ethylsilicate polymer having a dynamic viscosity of 10 centipoises (cps) to 1,000 cps at 25° C. and 50 wt % to 60 wt % silica (SiO | 06-30-2011 |
