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7317071 |
Process for producing fluoromonomer
Processes for producing a fluoromonomer from a fluoropolymer, among which one that can be carried out more simply is a process wherein thermal decomposition of a fluoropolymer is preformed by means...
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7309470 |
Methods and apparatus for improved fluid control utilizing a U-valve employing a bidirectional check valve
A U-valve apparatus including a bidirectional check valve for controlling the flow of liquid from a vessel while preventing inadvertent discharge from the vessel. The check valve allows passage of...
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7297754 |
Method for the preparation of aromatic chloroformates
A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a...
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7297313 |
Microfabricated reactor, process for manufacturing the reactor, and method of amplification
An integrated microfabricated instrument for manipulation, reaction and detection of microliter to picoliter samples. The instrument is suited for biochemical reactions, particularly DNA-based...
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7288229 |
Parallel reactor with sensing of internal properties
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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7288620 |
Process and device for manufacturing an aromatic alkylene polymer
The present invention relates to-a process and a device for the continuous manufacture of a polymer of an aromatic alkylene monomer e.g. styrene comprising a bulk polymerisation of the monomer and...
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7282183 |
Atmospheric control in reaction chambers
Apparatus and methods are disclosed for controlling atmospheric characteristics inside a chamber. An apparatus comprises a mechanism for diffusively introducing pressurized gas into the apparatus,...
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7270791 |
Angular flow distribution bottom head
An improved angled annular deflector for a gas-phase polymerization reactor and improved method for delivery of a stream of polymerizable fluid to a gas-phase polymerization reator. The angled...
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7267803 |
Degassing apparatus
A degassing apparatus for use with a polymerisation reactor is disclosed. Slurry from the reactor is discharged into a flask tank ( 3 ) in which monomers or dilluent vaporise to form a gas. Filler...
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7268206 |
Process and apparatus for degassing a polymer
The present invention relates to a process for stripping residual volatile compounds contained in a thermoplastic polymer. The process comprises (1) forming the polymer in the form of a melt...
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7262263 |
Method and apparatus for producing solid-state polycondensed polyesters
The present invention relates to a method for producing solid-state polycondensed polyesters by using crystallization with or without subsequent solid-state polycondensation for producing bottles,...
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7256044 |
Elevated pressure apparatus and method for generating a plurality of isolated effluents
An apparatus and a method for rapidly generating a plurality of isolated effluents have been developed. A specific embodiment involves screening a plurality of solids through simultaneously...
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7253253 |
Method of removing contaminants from plastic resins
A method for removing contaminants from synthetic resin material containers using a first organic solvent system and a second carbon dioxide system. The organic solvent is utilized for removing the...
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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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7250483 |
Inhibition of catalytically active impurities in polycarbonate by the melt transesterification process
An improvement to the melt transesterification process for the preparation of polycarbonate is disclosed. The improvement entails adding to the process between its medium viscosity reactor and a...
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7241424 |
Apparatus for screening catalysts in a parallel fixed-bed reactor
The present invention discloses an apparatus and method for rapid analysis of members of a combinatorial library. The apparatus includes a plurality of vessels for containing individual library...
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7241423 |
Enhancing fluid flow in a stacked plate microreactor
A stacked plate chemical reactor in which simple plates are stacked together to form the reactor. When openings in adjacent plates are properly aligned, fluid pathways and processing volumes are...
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7238773 |
Countercurrent stripping pipe
Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe ( 201 ) composed of a plurality of pipe sections ( 201 a - d ), in which trays...
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7232551 |
Fluidized bed method and reactor for the treatment of catalysts and catalyst carriers
A method for the treatment of catalysts or catalyst carriers by: a) introducing and distributing a gas in the lower section of a reactor containing a catalyst or catalyst carrier bulk material; b)...
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7214760 |
Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a slurry or cake carboxylic acid product without isolation of a substantially dry carboxylic acid...
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7199210 |
Process for the preparation of polyethylene terephthalate (PET)
A process for the preparation of polyethylene terephthalate by making use of non antimony catalysts is described. The Ti complex catalyst is pre-dispersed in the polymer matrix selected from PET,...
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7179881 |
Process for heating PET pellet feed to a solid stating process by heat exchange with hot solid stated pellets
Considerable energy savings may be realized by recovering heat from hot PET pellets exiting a solid state polymerization reactor, and using this heat to heat cool pellets entering the crystallizer...
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7160517 |
Apparatus and methods for the automated synthesis of oligosaccharides
One aspect of the present invention relates to an apparatus for the efficient synthesis of oligosaccharides on a solid support, e.g., formed by subunit addition to terminal subunits immobilized on...
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7157544 |
Process for producing polycarbonate oligomer and process for producing polycarbonate resin using the same
A process for producing an aromatic polycarbonate oligomer according to an interfacial polymerization method comprising reacting an aqueous solution of a bisphenol compound and phosgene in the...
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7150994 |
Parallel flow process optimization reactor
Parallel flow reaction systems comprising four or more reaction channels are disclosed. Distribution systems, and parallel flow reaction systems comprising such distribution systems are also...
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7148312 |
Preparation method of high molecular weight polycarbonate resin
The present invention relates to a method for the preparation of a high molecular weight polycarbonate resin, and more particularly to a method for preparing a high molecular weight polycarbonate...
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7144981 |
Process for separating volatile components from polymers
A process for concentrating polymers by evaporation is disclosed. The process entails (i) obtaining a mixture containing a polymer and volatile component, the volatile components being present in...
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7141641 |
Method and apparatus for production of alkyl aryl ether and diaryl carbonate
A method and apparatus for continuously producing an alkyl aryl ether and a diaryl carbonate by reacting a dialkyl carbonate and an aromatic alcohol in presence of a transesterification catalyst.
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7138478 |
Process for mixing polymer melts with additives
A continuous process for mixing polymer melts with additives, in particular polycarbonate melts with additives in liquid form, in solution or in dispersion is described. The additives are added to...
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7135541 |
Polyester process using a pipe reactor
There are disclosed polyester processes using a pipe reactor and corresponding apparatuses. In particular, there are disclosed processes and corresponding apparatuses including an esterification...
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7132498 |
Process to make polycarbonate from bismethylsalicylcarbonate (BMSC)
The present invention relates to a method of preparing polycarbonate comprising the steps of: (i) introducing to an extruder through a feed port a plurality of reaction components comprising a...
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7132503 |
Removing gelled unsaturated elastomers from polymerization equipment associated with their production
A process for removing residual polymer from polymerization equipment by combining a degelling agent, residual polymer, and solvent.
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7132531 |
Reactor
A reactor vessel for carrying out solid phase synthesis, particularly the solid phase synthesis of oligonucleotides, peptides, and combinatorial chemistry is provided. The reactor vessel comprises...
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7129315 |
Process for the production of polycarbonate
A process for the isolation of polycarbonate produced by the interfacial polymerization process is disclosed. Accordingly, the process entails (a) evaporating the organic solvent from the solution...
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7129092 |
Apparatus and method for generating a plurality of isolated effluents
An apparatus and a method for rapidly generating a plurality of isolated effluents have been developed. A specific embodiment involves screening a plurality of solids through simultaneously...
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7115701 |
Method for the continuous production of high-molecular polyester and device for carrying out the method
The invention relates to a method for producing high-molecular polyester such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polynaphthalene terephthalate (PEN),...
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7112645 |
Polycarbonate composition and method of making thereof
A polycarbonate composition comprises chloride, sulfate, phosphate or a combination of two or more of the foregoing ionic species in an amount of zero to about 100 parts per billion based on the...
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7112646 |
Process and device for manufacturing an aromatic alkylene polymer
The present invention relates to a process and a device for the continuous manufacture of a polymer of an aromatic alkylene monomer e.g. styrene comprising a bulk polymerisation of the monomer and...
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7091302 |
Process for the preparation of polycarbonate
The invention describes a process for the preparation of polycarbonate. The process includes
(a) transesterifying at least one aromatic dihydroxyaryl compound and a diaryl carbonate in the melt in...
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7087204 |
Reaction unit
A reactor which is a reactor ( 4 ) in the form of a cylindrical vessel having a liquid inlet and a liquid outlet and elongated in a flowing direction, comprising, in the interior, a drive shaft ( 6...
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7084232 |
Method for preparing high molecular weight polycarbonate
The present invention relates to a process for preparing high molecular weight polycarbonate resin, particularly to a process for preparing high molecular weight polycarbonate resin, which conducts...
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7084234 |
Method and device for producing polyesters, copolyesters and polycarbonates
In a process for producing polyester, the esterification of dicarboxylic acids and diols is carried out in at least one reaction stage, the prepolycondensation of the esterification product in at...
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7077994 |
Polyhydroxyalkanoate copolymer/starch compositions for laminates and films
Films comprising a blend of polyhydroxyalkanoate copolymer and destructured starch are disclosed. Laminates having a first layer comprising a PHA copolymer and a second layer comprising a PHA...
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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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7070988 |
Oligosaccharide synthesizer
After various sugar nucleotide solutions and glycosyltransferases (or primers) have been mixed, they are introduced into a reaction tank (column) with primers (or glycosyltransferases) immobilized...
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7067610 |
Method for producing polycarbonate
An integrated method for producing aromatic polycarbonate, including the steps of:
(1) making a liquid mixture of acetone and diphenylcarbonate; (2) transporting the liquid mixture of step (1) to...
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7060788 |
Process for stripping monomers and other volatile constituents from polymer melts
A process for stripping volatile constituents from polymer melts is disclosed. The process entails introducing the polymer melt into a horizontally oriented cylindrical device that contains a...
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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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7057011 |
Continuous resin recovery apparatus and recovery method
The present invention provides a continuous resin recovery method for recovering resin from which foreign matters and volatile components are sufficiently removed and which is highly purified and...
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7045358 |
Parallel reactor for sampling and conducting in situ flow-through reactions and a method of using same
An apparatus for parallel processing of reaction mixtures, including a reactor block including reaction chambers for containing reaction mixtures under pressure, the reactor block further including...
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