Matches 301 - 350 out of 534 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5453250 Apparatus for the preparation of a flowable reaction mixture  
Leakage problems can be avoided in an apparatus for the preparation of a solid or cellular plastic-forming, flowable reaction mixture of at least two flowable reaction components and at least one...
5451376 Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethane  
In a fine comminution apparatus arranged downstream of a coarse comminution apparatus, polyurethane foam wastes can be comminuted to the desired particle size for recycling as an additive in the...
5445781 Process for the injection molding of non-precatalyzed polymerizable resins at high-pressure and flow  
An improved method for injection molding of non-precatalyzed resins in which the catalyst and resin flows are injected in a mixing chamber co-current with one another angled toward the ejectment...
5433924 Method and apparatus for feeding a catalyst  
A catalyst feed system is described for intermittent delivery of supported and/or prepolymerized supported catalyst to a polymerization reactor. The system incorporates valves with cylindrical...
5429807 Method and apparatus for creating biopolymer arrays on a solid support surface  
An automated method and apparatus for performing biopolymer synthesis on a two-dimensional support surface whereby a two-dimensional matrix or array of biopolymers are obtained on the surface. An...
5419874 Synthesis reaction column  
The present invention is directed to a synthesis reaction column which can be conveniently implemented in post synthesis procedures. The reaction column is configured to allow easy connection to a...
5417930 Polymerization reactor  
A novel chemical reactor: one particularly useful for the production of polymers, especially elastomers such as butyl rubber. The reactor contains (1) a two-tube pass system, constituted of an...
5399320 Method and apparatus for stopping reaction in a gas phase polymerization reactor system  
A method of terminating, under emergency conditions, an olefin polymerization reaction conducted in the presence of a transitioned metal based catalyst in a gas phase reactor by using a recycle gas...
5395595 Fluidized bed reactor  
The present invention relates to a fluidized bed reactor in which olefins are polymerized or copolymerized in a bed formed by particles being polymerized and fluidized with the aid of a circulating...
5395594 Simultaneous multiple chemical synthesizer  
The present invention is directed to a simultaneous multiple chemical synthesizer comprising a number of reaction vessels wherein each vessel has a filter in the bottom portion thereof, a number of...
5391355 Vessel for the treatment of particulate materials  
Disclosed is a substantially vertically disposed vessel for the continuous gravity plug flow of solid particles and countercurrent flow of fluid, the improvement comprising the vessel having at...
5382411 Apparatus and method for continuously mixing fluids  
Apparatus and method of hydrating a particulated polymer and producing a well treatment gel includes a mixer for spraying the polymer with water at a substantially constant water velocity and at a...
5380494 Apparatus for gas phase polymerization and method for operating the same  
A fluidized bed-type polymerization apparatus has an upper blowing equipment installed at a definite height in the fluidized bed area. Through the equipment, a part of the circulating gas and a...
5380496 Process and apparatus for suspension polymerization  
There is provided an apparatus for suspension polymerization to produce polymer particles having uniform size. The apparatus has a droplet forming device with at least one orifice and a recycle...
5362447 Automated peptide synthesizer  
The present invention is directed to an automated peptide synthesizer equipped with recovery lines including an acyl component recovery line for recovering unreacted acyl components to allow the...
5356596 Apparatus for isolation of synthetic peptide without mechanical loss  
In connection with an automated peptide synthesizer, an apparatus and associated method through which peptides produced in simultaneous multiple synthesis are together isolable. Cleavage to...
5348458 Apparatus for producing foamed, molded thermoplastic articles and articles produced thereby  
Method and apparatus for producing a molded article of a foamed thermoplastic resin and articles produced thereby. A molten mass of an expandable thermoplastic resin is accumulated in an...
5344613 Agitation stabilizer in solid-phase peptide synthesizer  
In an automated solid-phase peptide synthesizing apparatus comprising at least one reaction vessel containing particulate resin as an insoluble support matrix which anchors elongating peptide...
5342582 Apparatus for reprocessing special waste  
An apparatus for reprocessing special waste of photocrosslinkable scrap material is composed of a housing equipped with a feed hopper, one or more UV emitters arranged in the housing to irradiate...
5342585 Apparatus for making multiple synthesis of peptides on solid support  
An apparatus is disclosed for performing a multiple synthesis of peptides on a solid carrier. Active components are successively bonded to functional groups anchored on a carrier. The carrier...
5310833 Process for feeding catalyst to fluidized bed for vapor phase polymerization  
A process for feeding a powder catalyst with a gas intermittently to a high-pressure fluidized bed reactor for the vapor phase polymerization of olefin, wherein the cross section of a catalyst feed...
5306641 Apparatus and method for determining gel rate of polymerizable compositions  
Apparatus and methods for accurately determining the gel time of oxygen inhibited polymerizable compositions is provided. Gel times in these compositions are related to dissolved oxygen...
5302660 Process for the production of viscosity-stable, low-gel highly concentrated elastane spinning solutions  
The invention relates to a process for the production of low-gel spinning solutions-surprisingly stable in their solution viscosity-of segmented polyurethane urea elastomers in highly polar...
5292834 Method of preventing polymer scale deposition  
A method of preventing polymer scale deposition in a polymerization vessel in polymerization of a particular monomer having an ethylenic double bond having a high dissolving power against the...
5284627 Polymer activation apparatus  
Polymer activation apparatus for activating a liquid polymer emulsion in dilution water includes a first processing zone in which the polymer solution is subjected to a high mean shear rate for a...
5248485 Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid  
The invention relates to a method for maintaining a continuous mixing extending throughout the transversal section of the reactor space in a liquid containing solids and gas, and for simultaneously...
5242661 Apparatus for direct fluorination of polymeric resins  
An apparatus for the direct fluorination of solid particles of polymeric resins capable of being fluorinated in which the solid particles are contacted by a flow of a mixture of fluorine and...
5240680 Automated apparatus for use in peptide synthesis  
An automated apparatus for use in cleaving, deprotecting and purifying synthesized polypeptides immobilized on solid phase particles. The apparatus includes cleavage and extraction vessels where...
5229076 Method for reducing polymer build-up in a polymerization reactor  
The present invention relates to a process for substantially inhibiting polymer build-up on reactor surfaces during polymerization. The method generally comprises the application of a polyaniline...
5213768 Fluidized bed apparatus and process for feeding gas to a fluidized bed apparatus  
A fluidized bed apparatus (1) having a fluidization grid (2) below which is positioned a tuyere (5) for guiding fluidization gas to the fluidization grid (2). The tuyere (5) comprises a widening...
5211916 Stripping system  
An in-line stripper has a venturi-conical mixer combination in which the annular space thereby is automatically adjustable in response to changes in viscosity or other property conditions.
5209607 Powder feeder apparatus  
This invention relates to an apparatus and process for feeding powder or dry solids catalyst into a flowing liquid stream. More particularly, the invention includes an apparatus which includes a...
5194301 Process for reducing scale formation in vinyl polymerization reactors  
The present invention refers to a process for inhibiting the formation of polymer buildup on the inner surfaces of a vinyl polymerization reactor by coating such surfaces with an alkaline solution...
5187245 Method of addition of polymerization initiator  
A method of addition of polymerization initiator in the process of suspension polymerization or emulsion polymerization polymerizing a polymerizable monomer in aqueous medium, comprising...
5180558 Method and apparatus for taking samples  
The invention relates to a method and an apparatus for continuously taking a sample from a discharge system of a polymerization reactor having a discontinuously opening discharge valve connecting...
5175209 Porous wafer for segmented synthesis of biopolymers  
A wafer for synthesizing biopolymers which includes a solid phase support material, a reaction chamber which receives and retains the support material and at least one inert porous material which...
5164162 Mixing head with sleeved quieting chamber  
An L-shaped mixing head for reaction injection molding apparatus comprises a first chamber wherein a plurality of reactive molding components are impingement mixed under high pressure. A second...
5137698 Apparatus for carrying out chemical reaction sequences  
An apparatus for carrying out chemical reaction sequences includes a stack of reaction plates arranged one above another and displaceable according to choice step by step in relation to one...
5130386 Method of preventing polymer scale deposition during polymerization  
A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a...
5128107 Apparatus for making ester  
An apparatus for producing ester includes an esterification device, a neutralization device connected to the esterification device, a distillation device connected to the neutralization device, a...
5108711 Multi-shaft thin-layer reactor  
A multi-shaft thin-layer reactor for treating fluid materials in which gaseous material is present during such treatment. The treatment involves the addition of gas to the fluid material or the...
5106585 Method and apparatus for cleaving deoxyribonucleic acid  
The invention relates to a procedure for chemically determining the base sequence of DNA and, in particular, its step of cleaving the labeled DNA having undergone a base-selective chemical...
5098968 Method of preventing polymer scale deposition  
A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a...
5091503 Continuous polymerization device and continuous polymerization method  
A continuous polymerization device is equipped with a stirring mechanism which possesses a drive shaft parallel to the direction of flow, a multiple number of polymerization precursor supply ports...
5082633 Mix head for mixing reactive chemicals  
A mixing head for high pressure mixing of reactive chemicals defines a mixing chamber for receiving and mixing oppositely directed impinging chemicals and having an outlet through which the...
5077019 Polymer forming device  
A polymer forming assembly, for use in a reactor for carrying out a polymerization reaction, includes a casing mounted on the bottom of the reactor and formed with a polymer discharge channel...
5067886 Reaction injection molding machine  
A reaction injection molding machine provides for independent spring actuation of pistons in metering cylinders. Individual compression of the springs is provided by hand screw compression...
5063027 Apparatus for mixing at least two reactive plastic materials  
A cylindrical mixing chamber opens into a subsequent cylindrical quieting chamber at an acute angle alpha against its direction of outflow to avoid spattering during the output of a plastic mixture...
5061741 Method for preparing an oil-in-water type uniform dispersion of liquid droplets and polymerization method for preparing polymer beads of uniform particle size  
A method for preparing an oil-in-water type uniform dispersion of liquid droplets, which comprises ejecting into an aqueous medium containing a dispersion stabilizer, which forms a continuous phase...
5053454 Multiple polymer synthesizer  
An apparatus for simultaneously performing a multiplicity of synthesis reactions is disclosed. The synthesizer includes at least one reaction vessel having an access port and a synthesis...
Matches 301 - 350 out of 534 < 1 2 3 4 5 6 7 8 9 10 11 >