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7619046 |
Production of polymers in a conical reactor
The present invention provides a process for the preparation of polymer which comprises the steps of i) feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of...
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7608225 |
Tower reactor and use thereof for the continuous production of high molecular weight polyesters
The invention relates to a tower reactor and the use thereof for producing high-molecular weight polyesters, such as e.g. polyethylene terephthalate (PET), polybutylene terephthalate (PBT),...
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7588735 |
Production of polyethylene
A process of producing polyethylene, the process comprising copolymerizing ethylene and an alpha-olefinic comonomer comprising from 3 to 8 carbon atoms in the presence of a chromium-based catalyst...
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7582709 |
Process and apparatus for manufacturing ethylene polymers and copolymers
The invention relates to a process for the manufacture of ethylene polymers and copolymers in which ethylene is compressed in a primary compressor at a throughput of at least 55 tonnes/hour, mixed...
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7582268 |
Reactor system with interstage product removal
The present invention provides a reactor system having: (1) a plurality of reactors connected in fluid flow communication and having at least one pair of reactors separated by an interstage...
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7575724 |
Continuous slurry polymerization apparatus
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and...
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7560417 |
Method and apparatus for parallel synthesis of chain molecules such as DNA
Synthesis of chain molecules such as DNA is carried out in a conduit having an interior channel with an inlet end and an outlet end. At least one wall of the conduit is substantially transparent to...
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7557180 |
Solid phase continuous polymerisation of polyethylene terephthalate (PET) reactor and process
A reactor and a process for solid phase continuous polymerization of polyethylene terephthalate (PET) in order to achieve an increase of the intrinsic viscosity (I.V.) of a low molecular weight PET...
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7514263 |
Continuous process for the production of combinatorial libraries of materials
A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.
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7491367 |
System and method for providing a standardized state interface for instrumentation
An instrumentation interface that provides a standardized states of a plurality of devices to a control system. Coordinating the operation of the plurality of devices in an analytical system is...
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7488774 |
Reactor system for the production of high impact polystyrene
A continuous process for producing high impact polystyrene comprising feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form...
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7465772 |
Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin
An apparatus and method for continuous polymerization of olefin(s), and a method for transferring a polymer powder from one reactor to another in the apparatus are disclosed. The apparatus includes...
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7445935 |
Process and apparatus for loading a particulate solid into a vertical tube
A process is described in which an elastic fluid is contacted with a particulate solid. This comprises providing a substantially vertical elongate tubular containment zone ( 1 ) containing a charge...
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7435784 |
Method of ethylene polymerization for producing products having various properties with high productivity and a tubular reactor used therefor
A method for continuous ethylene polymerization under high pressure using a polymerization reaction zone comprises a primary reaction zone and a secondary reaction zone wherein the secondary...
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7431893 |
Process and apparatus for continuous polycondensation
An apparatus for continuously producing polyester comprises three single reactors, i.e. a single esterification reactor (first reactor), a single initial polymerization reactor (second reactor) and...
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7341872 |
Multiautoclave with set of vessels for combinatorial synthesis of zeolites and other materials
A vessel arrangement having a base and multiple vessels suited for simultaneously conducting a plurality of isolated experimental reactions or treatments at atmospheric process conditions or...
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7268194 |
Continuous slurry polymerization process and apparatus
A process of converting a loop reactor into multiple loop reactors comprising starting with a loop reactor comprising at least 8 vertical legs, at least two non-vertical conversion runs, each...
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7253228 |
Method for producing polyurethane emulsion
The present invention provides a process for producing a polyurethane emulsion, capable of continuously producing a polyurethane emulsion which contains substantially no organic solvent and also...
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7247277 |
Automatic synthesis machine
An automatic synthesis machine is used for synthesis of compounds using a plurality of vessels, allowing reagents to chemically react with each other. The automatic synthesis machine comprises a...
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7238321 |
Method for rapid thermal cycling of biological samples
A thermal cycling method and device is disclosed. The device comprises a sample chamber whose temperature can be rapidly and accurately modulated over a range of temperatures needed to carry out a...
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7220392 |
Fuel conversion reactor
A fuel conversion reactor includes a shell-and-tube heat exchanger for controlling the temperature of a hot gaseous mixture produced by catalytic or non-catalytic reaction of a fuel with a gaseous...
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7204962 |
Production apparatus for polybutylene terephthalate
Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid...
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7112449 |
Combinatorial chemical synthesis
Combinatorial synthesis methods obtain a plurality of compositions having materially different characteristics using an apparatus having a plurality of collectors. A first quantity of fluid...
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7074368 |
Batch-type polyester polymerization apparatus
A batch-type polyester polymerization apparatus manufactured by assembling a conventional batch-type apparatus with a thin film tower. The batch-type polyester polymerization apparatus is...
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7057007 |
Process for continuously producing polybutylene terephthalate
Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid...
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7045101 |
Method of preparing a polymer under predetermined temperature conditions, and apparatus therefor
A method of preparing a polymer under predetermined temperature conditions comprises conducting the polymerization within a closed reaction chamber configured such that most or all of an inner...
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6955789 |
Coated liquid phase reactor
The present invention relates to a reactor suitable for liquid-phase fluorination and provided, as heating means, with at least one element fixed to the cover so as to be immersed to the bottom of...
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6921804 |
Cascaded polyolefin slurry polymerization employing disengagement vessel between reactors
A disengagement vessel employing a lock hopper effectively reduces concentration of non-polymer-associated components in the polymer product slurry of a first olefin slurry polymerization reactor,...
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6916448 |
Process for selective production of propylene from hydrocarbon fractions with four carbon atoms
For the selective production of propylene from an olefinic C 4 fraction, a process is implemented that successively comprises:
1) the selective hydrogenation of butadiene with isomerization...
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6887434 |
Preparation of propene and, if desired, 1-butene
Propene and, if desired, 1-butene are prepared by
a) reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst comprising at least one compound of...
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6872535 |
Three-dimensional array of supports for solid-phase parallel synthesis and method of use
A three-dimensional (3D) array of solid-phase supports is adapted to provide parallel synthesis of a library of molecules with 3D diversity. Individual locations in the 3D array may be assigned to...
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6872363 |
Production of polyethylene
A process of producing polyethylene, the process comprising copolymerizing ethylene and an alpha-olefinic comonomer comprising from 3 to 8 carbon atoms in the presence of a chromium-based catalyst...
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6866827 |
Process and device for the parallel preparation of at least 4n oligonucleotides
In a process and a device for the parallel preparation of at least 4n oligonucleotides, at least four inserts each with n reaction vessels are first arranged on a plate ( 16 ), each reaction vessel...
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6863867 |
Apparatus for mixing and reacting at least two fluids
A novel apparatus for mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply...
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6858668 |
Method for masking polyisocyanates in emulsion
This invention relates to a process for the preparation of aqueous emulsions of blocked (poly)isocyanates, this process comprising the steps consisting successively in:
a) placing an...
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6858188 |
Apparatus for preparing polyolefin products and methodology for using the same
Apparatus for olefin polymerization includes a plurality of shell and tube olefin polymerization reactors, each of which has an olefin polymerization reaction mixture inlet connection and a crude...
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6846454 |
Fluid exit in reaction chambers
Apparatus and methods are disclosed for controlling flow of fluid inside a chamber. A device comprises a chamber comprising at least one wall, a first opening for introducing a fluid into the...
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6835361 |
Processes and apparatus for reacting gaseous reactants containing solid particles
The present invention provides improved processes and apparatus for reacting high flow rates of one or more gaseous reactants in tubular reactors. The improved processes and apparatus allow such...
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6828143 |
Nanoscale chemical synthesis
A modular reactor system and method for synthesizing nanoscale quantities of chemical compounds characterized by a continuous flow reactor under high pressure having uniform temperature throughout...
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6818183 |
Multi-temperature modular reactor and method of using same
An apparatus and method for carrying out and monitoring the progress and properties of multiple reactions is disclosed. The method and apparatus are especially useful for synthesizing, screening,...
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6800250 |
Polymer synthesizer
A polymer synthesizer is disclosed which has a base on which sits a synthesis case, a synthesis block, and a means of moving the synthesis block and supports for a reagent shelf. The synthesis case...
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6790620 |
Small volume chambers
Apparatus and methods are disclosed for forming a reaction chamber having relatively small volumes. An apparatus comprises two elements and a mechanism for introducing a gas to form a movable...
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6747107 |
Method of dispersion of a non-Newtonian fluid
Non-Newtonian fluids, such as partially polymerized monomers or solutions of polymer in monomer may be pressure atomized below the surface of an immiscible continuous liquid phase to produce a...
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6660234 |
Apparatus for polymer synthesis
A method and apparatus for preparation of a substrate containing a plurality of sequences. Photoremovable groups are attached to a surface of a substrate. Selected regions of the substrate are...
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6630358 |
Arrays of proteins and methods of use thereof
Protein arrays for the parallel, in vitro screening of biomolecular activity are provided. Methods of using the protein arrays are also disclosed. On the arrays, a plurality of different proteins,...
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6630112 |
Process and unit for carrying out a reaction on an organic feed, such as dimerization or metathesis, in the presence of a polar phase containing a catalyst
A process for carrying out a reaction on an organic feed, for example dimerization, co-dimerization, oligomerization or metathesis of olefins, as described in which the catalyst is a catalytic...
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6599981 |
Method for manufacturing olefinic thermoplastic elastomer composition
This invention relates to a method for manufacturing an olefinic thermoplastic elastomer composition, characterized by disposing specific kneading segment at least at one place of the screw on the...
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6558633 |
Chemical reaction apparatus and methods
Chemical reaction apparatus, materials and methods are provided for the automatable, efficient synthesis of chemical species and libraries. In accordance with preferred embodiments, chemical...
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6548026 |
Parallel reactor with internal sensing and method of using same
An apparatus and method for carrying out and monitoring the progress and properties of multiple reactions is disclosed. The method and apparatus are especially useful for synthesizing, screening,...
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6544481 |
Apparatus for the production of foamed material from a reaction mixture containing a dissolved foaming agent
Reaction mixtures which form polyurethane foamed material, with production conditions which are varied during production, e.g. variation of the proportion of foaming agent, variation of the ratio...
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