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| Number | Title | Issue Date |
| 6559244 | Processable poly(hydroxy acids) A processable poly(hydroxy acid) composition which has been stabilized by adding to the polymer during the melt processing stage 0.05-3% by weight of a peroxy compound the degradation of which produces one or more acid radicals, and which has good melt st... | 05/06/2003 |
| 6500780 | Method for preparing heterogeneous catalysts of desired metal content The present invention concerns a method for preparing heterogeneous catalysts. According to the method, preparation is carried out under such process conditions in which the bonding of compounds from the gas phase onto the surface of a support material is... | 12/31/2002 |
| 6369280 | Process for preparing alkyl ethers and mixtures thereof The invention relates to a process for preparing tertiary alkyl ethers, in particular MTBE, ETBE or mixtures of these ethers with heavier ethers. According to the process the feedstock containing hydrocarbons is fed to a catalytic distillation reactor sys... | 04/09/2002 |
| 6369281 | Process for the production of 2-butyl-2-ethyl-1,3-propanediol The present invention concerns a process for producing 2-butyl-2-ethyl-1,3-propanediol. According to the process, a reaction mixture is formed, containing 2-ethylhexanal and formaldehyde, into which an hydroxide compound is fed, whereby 2-ethylhexanal and... | 04/09/2002 |
| 6276441 | Method and regenerator for regenerative heat transfer The present invention relates to a heat transferring device for transferring heat energy from a first gaseous flow into a second gaseous flow. The heat transferring device includes first and second circulating fluidized bed reactors. A first gaseous flow ... | 08/21/2001 |
| 6221962 | Liquid crystal polymer blends, process for the preparation thereof and products manufactured from the blends A polymer blend, a process for the preparation thereof and products manufactured from the polymer blend. The polymer blend contains 95 to 50 parts by weight of a polyolefin- or polyester-based polymer matrix, 5 to 50 parts by weight of an aromatic main-ch... | 04/24/2001 |
| 6153306 | Paper coated with polylactide and a method for making it The invention relates to a polylactide-coated paper or board product which is made by coextrusion wherein the polylactide is extruded together with a conventional polymer, such as polyolefin, onto the surface of the paper, and after extrusion the polyolef... | 11/28/2000 |
| 6146764 | Polymer films and process for the preparation thereof The lamellar layer is formed by overlapping plates of the liquid crystalline polymer in the isotropic matrix. The oxygen transmission rate of a 50 μm thick layer of the monolayer structure is typically less than 150 cm3 /(m2 .multid... | 11/14/2000 |
| 6117928 | Polylactide films The invention relates to polylactide films the mechanical properties of which, in particular bursting strength, elongation and tearing strength, have been improved by adding to the polymer certain plasticizers. These plasticizers are preferably glycerol e... | 09/12/2000 |
| 6087465 | Melt-processible poly (ester urethane) and a process for the preparation thereof The invention concerns a novel melt-processible poly(ester urethane) and a process and a prepolymer for the preparation thereof. The poly(ester urethane) contains structural units derived from a polyester and structural units derived from a diisocyanate a... | 07/11/2000 |
| 6045688 | Method based on a fluidized-bed reactor for converting hydrocarbons The invention relates ro a method of converting hydrocarbons. According to the method, a gaseous or liquid hydrocarbon feed is passed into a circulating fluidized-bed reactor, wherein the feed is converted at a high temperatue under the influence of parti... | 04/04/2000 |
| 6022390 | Assembly for separating solids from a gaseous phase The invention relates to a method of separating solids from a gas flow in a fluidized catalytic process and to a cyclone assembly suited for use in a fluidized catalytic process. According to the invention, the gas flow of the process carrying the suspend... | 02/08/2000 |
| 5998675 | Process for preparing tertiary alkyl ethers A process for preparing tertiary alkyl ethers comprises the steps of reacting C4-7 isoolefins of an olefinic hydrocarbon feedstock with an alkanol in the presence of a first catalyst in a reaction zone to form a reaction mixture containing a te... | 12/07/1999 |
| 5969160 | Process for producing phthalic anhydride Process for producing phthalic anhydride by catalytic gaseous phase oxidation of o-xylene or naphthalene in the presence of catalyst, whereby the reaction is carried out in at least two separate reactors. The first reactor is a salt-cooled main reactor an... | 10/19/1999 |
| 5925726 | Thermoplastic biodegradable polyester a process for the preparation thereof and articles manufactured therefrom The invention concerns a novel melt-processible copolyester and a process and prepolymer for the preparation thereof. The copolyester contains structural units derived from a polyester and structural units derived from diepoxy, and the polyester units at ... | 07/20/1999 |
| 5908964 | Process for preparing alkyl ethers and mixtures thereof The invention concerns a process for preparing a tertiary alkyl ether product. The process comprises reacting the isoolefins of an olefinic hydrocarbon feedstock in a reaction zone (1-3) with an alkanol to form a reaction mixture, which is subjected to di... | 06/01/1999 |
| 5880055 | Catalyst for polymerization of ethylene The present invention concerns heterogeneous catalysts for polymerization of olefins. The catalysts include at least one Group IVa metal compound on a solid inorganic oxidic support. According to the invention the catalysts are prepared by vapourizing at ... | 03/09/1999 |
| 5866043 | Processible electrically conducting polyaniline compositions and processes for the preparation thereof Polymeric compositions are disclosed comprising protonated, electrically conducting polyaniline; cyclic organic compounds capable of forming ring-ring interactions with the six-membered rings of the polyaniline and hydrogen bonding with the NH groups of t... | 02/02/1999 |
| 5855680 | Apparatus for growing thin films An apparatus for growing thin films onto a substrate by subjecting the substrate to alternately repeated surface reactions of vapor-phase reactants for the purpose of forming a solid-state thin film. The apparatus includes a reaction chamber pack into whi... | 01/05/1999 |
| 5854356 | Polymers for release films on surfaces containing pressure-sensitive adhesives The invention relates to a polymer for release films of surfaces containing pressure-sensitive adhesives. The polymer includes a reactive polyolefin and a reactive release substance, which are chemically bonded together as a result of being compounded in ... | 12/29/1998 |
| 5852220 | Process for preparing a mixture of tertiary alkyl ethers A process for producing tertiary alkyl ethers by reacting an olefinic hydrocarbon feedstock, which contains a mixture of reactive C4 -C7 isoolefins, with an alkanol in the presence of a catalyst that will enhance the reaction between... | 12/22/1998 |
| 5789092 | Method and equipment for prevention of cooling of electrochemical devices The invention concerns a method and an equipment for prevention of cooling of electrochemical devices (10). The temperature of the electrochemical device (10) is measured and, as the temperature falls below a certain preset lower limit (Tminimum | 08/04/1998 |
| 5783111 | Electrically conducting compositions Compositions are disclosed comprising electrically conducting polyaniline and particular substituted aromatic compounds that simultaneously form hydrogen bonds and ring-ring interactions with, respectively, the NH-groups and the six-membered rings of the ... | 07/21/1998 |
| 5715046 | Process and device for oil stability measurement A method and a device for determination of the stability or storability of oil, wherein the stability of oil is determined by measuring the intensity of light scattering from the oil surface, when an asphalteneflocculating liquid is added to the oil sampl... | 02/03/1998 |
| 5708196 | Method and apparatus for determining the cloud point of oil The invention concerns a method and an apparatus for determination of the cloud point of oil. In the method according to the invention the cloud point is determined from a turning point on the oil cooling curve. The method of the invention may be realized... | 01/13/1998 |
| 5689013 | Process for preparing tertiary alkyl ethers from an olefinic hydrocarbon feedstock The present invention concerns a process for preparing tertiary alkyl ethers. The process comprises the steps of contacting in the presence of a catalyst a feedstock containing saturated hydrocarbons and dienes having 4 to 7 carbon atoms with an excess of... | 11/18/1997 |
| 5677394 | Melt-processable block copolyesterimide and method for manufacturing it A melt-processable block copolyesterimide comprising the repeating units (I), (II) and (III) and, optionally, a repeating unit (IV), wherein (I) is a repeating unit of the formula ##STR1## wherein R is an aliphatic polyether chain and/or a polysiloxa... | 10/14/1997 |
| 5665211 | Electrolysis apparatus for producing hydrogen In an electrolysis apparatus according to the invention for producing hydrogen by decomposing electrolysis liquid with the aid of electric current into hydrogen and oxygen in a pressurized electrolytic cell (11), an electrolytic cell (11) is placed within... | 09/09/1997 |
| 5662833 | Electrically conducting thermoset polymer compositions with hydroxy containing protonic acid dopant The present invention relates to electrically conducting thermoset compositions and methods for preparing them. In the compositions according to the invention, the conducting component is a polyaniline protonated with a protonic acid containing at least o... | 09/02/1997 |
| 5663452 | Process for the preparation of 2-ethyl-1,3-hexane diol The invention relates to a new, technically simple but efficient process, with a good yield, for the preparation of 2-ethyl-1,3-hexane diol from n-butyraldehyde by aldol condensation in the presence of an alkali metal hydroxide or alkali earth metal hydro... | 09/02/1997 |
| 5641721 | Prepolymerized catalyst composition, a process for the preparation thereof, and a process for polymerizing -olefins The present invention concerns prepolymerized catalyst composition for polymerization of -olefins, a process for the preparation thereof and a process for polymerization of -olefins. According to the polymerization process a procatalyst comp... | 06/24/1997 |
| 5637777 | Process and apparatus for preparing tertiary alkyl ether The invention concerns a process and an apparatus for preparing tertiary ethers. According to the process, C4 to C6 isoolefins and possibly heavier olefins contained in the feedstock are reacted with lower aliphatic alcohols, in part... | 06/10/1997 |
| 5618985 | Process for the preparation of 2-n-butyl-2-ethyl-1,3-propane diol The invention relates to a novel, technically simple but efficient and high-yield process for the preparation of 2-n-butyl-2-ethyl-1,3-propane diol from 2-ethyl hexanal and formaldehyde by using a basic alkali metal hydroxide or earth alkali metal hydroxi... | 04/08/1997 |
| 5585038 | Conductive plastics material and a method for its preparation The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficien... | 12/17/1996 |
| 5585040 | Conductive plastics material and a method for its preparation The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficien... | 12/17/1996 |
| 5583083 | Procatalyst composition for homo- and copolymerization of alpha olefins, its preparation and its use A procatalyst composition which is suitable for the homo- and copolymerization of alpha olefins together with an organometallic cocatalyst compound and which is prepared by treating an inorganic carrier with a component system containing a complex of a ma... | 12/10/1996 |
| 5536886 | Process for preparing alkyl ethers The invention relates to a process for preparing tertiary alkyl ethers. According to the process the feedstock containing hydrocarbons is fed to a catalytic distillation reactor system, in which the isoolefines, in particular the C4 to C7 | 07/16/1996 |
| 5520852 | Processible electrically conducting polyaniline compositions Polymeric compositions are disclosed comprising protonated, electrically conducting polyaniline; cyclic organic compounds capable of forming ring-ring interactions with the six-membered rings of the polyaniline and hydrogen bonding with the NH groups of t... | 05/28/1996 |
| 5507977 | Conducting plastic material and method of producing such material The present invention is directed to electrically conducting complexes, methods of producing them, and their use in producing plastic materials with high electrical conductivity. The invention is particularly directed to an electrically conducting complex... | 04/16/1996 |
| 5436317 | Method for preparing polyaniline A method for preparing a polyaniline having a desired molar mass. Control of the molar mass of the polyaniline is achieved in connection with an aniline polymerization reaction, by feeding aniline and an oxidizing agent participating in the polymerization... | 07/25/1995 |
