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Class 523/315 - Utilizing streams or masses moving relative to each other at a described angle of coincidence other than mere pouring, e.g., counter-current mixing, etc.


Subclass of Class 523 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Process of treating or forming a desired or intentional
No. of patents: 35
Last issue date: 07/07/2009


NumberTitleIssue Date
7557150Method for manufacturing dispersion and ink using dispersion obtained thereby
A method for manufacturing a dispersion, the method including a step of forming a reaction product by allowing at least two types of liquids to react with each other, the dispersion including a dispersion medium and particles formed from the reaction product dispers...
07/07/2009
7183456Water-absorbent resin and production process therefor
In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a metho...
02/27/2007
6680354High concentration agitation of PVA polymer powders
The present invention is a process for preparing high concentration polyvinyl alcohol (PVA) aqueous mixtures, wherein the PVA solid concentration is at least 14% in the mixture....
01/20/2004
6313198Emulsion feed assembly and method
The present invention is directed to a polymer feed system and a method of using the same wherein clogging of the polymer input line is avoided by the use of air to purge the system of any unwanted polymer or electrolyte. The purging avoids the contact of...
11/06/2001
6140394Method and apparatus of suspension polymerization
A method of suspension polymerization of a monomeric composition to produce a polymer or a polymer composition is disclosed which method comprises the steps of retaining a disperse phase component composed of the monomeric composition and a continuous pha...
10/31/2000
6087440Continuous process for preparing a polyurethane latex
A polyurethane/urea/thiourea latex having a narrow molecular weight polydispersity and sub-micron particle size can be prepared by first preparing a high solids (between about 65% and 74% solids) latex of a polyurethane/urea/thiourea prepolymer, then cont...
07/11/2000
6051630Process for preparing a dispersion of hard particles in solvent
A process and a high pressure apparatus are disclosed which are useful in preparing magnetic dispersions and other dispersions of hard, non-compliant particulates. The apparatus can be monitored for clogs and wear and allows for relatively quick and inexp...
04/18/2000
6004024Emulsion feed assembly
The present invention is directed to a polymer feed system and a method of using the same wherein clogging of the polymer input line is avoided by the use of air to purge the system of any unwanted polymer or electrolyte. The purging avoids the contact of...
12/21/1999
5981653Process for the production of aqueous stoving coating compositions
The present invention relates to a process for the production of aqueous dispersions which form powder coatings at room temperature, have an average particle size of 0.1 to 10 μm, contain polyols and blocked polyisocyanate crosslinking agents, and, after...
11/09/1999
5852076Process for preparing a dispersion of hard particles in solvent
A process and a high pressure apparatus are disclosed which are useful in preparing magnetic dispersions and other dispersions of hard, non-compliant particulates. The apparatus can be monitored for clogs and wear and allows for relatively quick and inexp...
12/22/1998
5731134Gelatin and polymer latex dispersion coating compositions
Stable photographic coating compositions comprising a polymer latex are prepared by mixing an aqueous solution comprising gelatin with a latex dispersion of a polymer of the formula (A)x (B)y (C)z where A and B are formed from ...
03/24/1998
5594047Method for forming photographic dispersions comprising loaded latex polymers
Loaded latex dispersions of hydrophobic photographically useful compounds with a wide variety of polymer latices are prepared by preparing an oil phase solution of the hydrophobic compound or compounds, preferably essentially free of water-miscible or vol...
01/14/1997
5426137Method 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 substantially constant water spray pattern at all flow rat...
06/20/1995
5369148Method for continuous agglomeration of an absorbent resin powder and apparatus therefor
Continuous agglomeration of an absorbent resin powder is accomplished by a method which comprises introducing the absorbent resin powder into a cylindrical member having an open lower end by means of a current of air through a dispersing member disposed i...
11/29/1994
5266211Process for precipitating polymers
This invention concerns a method for precipitating polymers from a liquid using at least one precipitant fluid, including a feed line, a nozzle plate having at least one outlet orifice for a polymer containing fluid with the outlet orifice communicating w...
11/30/1993
5262106Anisotropic fiber alignment in composite structures
High strength material composite structures are formed with oriented fibers to provide controlled anisotropic fibers. Fibers suspended in non-dilute concentrations (e.g., up to 20 volume percent for fibers having an aspect ratio of 20) in a selected mediu...
11/16/1993
5181987Device and process for precipitating polymers
A device for precipitating polymers from a liquid by at least one precipitant fluid includes a feed line, a nozzle plate having at least one outlet orifice for a polymer containing fluid with the outlet orifice communicating with the feed line, at least o...
01/26/1993
5164429Polymer 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 predetermined period of time, and a second processing zone ...
11/17/1992
5118728Spray polyurea elastomers using chopped glass roving
A spray polyurea elastomer is made in combination with a filler material by spraying together two reactive elastomers and dispensing filler material into the spray pattern....
06/02/1992
4794166Process for the preparation of a hydrogel which is largely free from monomers
A polymer hydrogel substantially free from monomers and oligomers is prepared by contacting a previously prepared polymer hydrogel with a single-phase mixture of water and a solvent and then separating the mixture of water and solvent from the hydrogel....
12/27/1988
4778835Process and apparatus for preparing polyester dissipations
A process and apparatus for preparing a homogeneous dissipation of a viscous, liquid-dissipatable polymer. The process comprises continuously feeding molten polymer into a first inlet of a mixing chamber, feeding a stream of a relatively low viscosity dis...
10/18/1988
4659755Method of continuously operating a counter-flow washing column
The method of continuously operating a counter-flow washing column which is supplied with a slurry of solid polymer particles in a diluent from a continuous polymerization zone and with washing liquid for extracting wash slurry and introducing it into a h...
04/21/1987
4652595Process and apparatus for the preparation of mixtures of isocyanate and water which are stable for a short time for glueing particulate material, in particular chips, fibers or the like
The present invention relates to a process for the preparation of mixtures of isocyanate and water which are stable for a short time for glueing particulate material, in particular chips, fibers, or the like, in which isocyanate is injected at high pressu...
03/24/1987
4421874Polymer slurry washing
A polymer slurry is passed past a filter and a wash fluid is caused to flow at a substantial angle with respect to the flow of the polymer slurry and toward the filter such as to replace at least a substantial portion of the fluid of the polymer slurry....
12/20/1983
4420572Continuous process for the production of highly concentrated spinning solutions of acrylonitrile polymers and a suitable device for this purpose
The invention relates to a process and device for the production of highly concentrated spinning solutions from acrylonitrile polymers, where the dissolving is carried out in one step in a stirred mixing vessel, which has a disc-shaped stirrer rotating in...
12/13/1983
4340516Compounding mica and resin with heat sensitive additives
A method of rapidly compounding melt forming resin, mica and chlorinated hydrocarbon wherein the mica has a coating comprising the chlorinated hydrocarbon, which method comprises providing a molten mass of the resin, contacting the molten mass with the co...
07/20/1982
4303569Coagulation of latex
There is provided a process and apparatus for the coagulation of an aqueous latex of a polymer wherein the latex and an aqueous coagulant are mixed in a tubular coagulation means which is disposed at an angle of from about 20° up to 90° to the horizonta...
12/01/1981
4209436Process for the removal of non-converted monomers from a copolymer of acrylonitrile
Process for the removal of unconverted monomers from a copolymer of acrylonitrile with one or more monomers copolymerizable therewith by a treatment with steam wherein a latex of said copolymer obtained from a polymerization stage is subjected to a contin...
06/24/1980
4168373Removal of residual vinyl chloride monomer from polyvinyl chloride latex
An improved process for reducing the amount of residual vinyl chloride monomer in polyvinyl chloride latex to acceptable levels is provided. Carefully controlled sparging and defoaming removes the monomer without affecting physical properties of the latex...
09/18/1979
4148990Continuous removal of monomers from an aqueous dispersion of a polymer
An aqueous polymer dispersion containing approximately 1 to 60 weight % of solid polymer particles with an average size of 20 to 500 microns and 5000 to 15,000 ppm of monomer(s), is freed from monomeric material. More specifically, the aqueous dispersion ...
04/10/1979
4123587Method of manufacturing a finely granular concentrate of fire-retarding foam-forming solid addition substances for plastics, varnishes, coating compositions, and similar substrates
A method is provided for producing a fine granular concentrate of fire-retarding, foam-forming solids for addition to host material including plastics, paints, coating compositions and the like by mixing particles of solid fire-retarding additives of part...
10/31/1978
4065421Continuous process for the production of aqueous urea-formaldehyde solutions
This invention relates to a process for the continuous production of aqueous urea-formaldehyde solutions having a mol ratio of formaldehyde to urea ranging from about 4.0 to about 6.0 and having a total solids content ranging from about 60% to about 85% b...
12/27/1977
4029633Carbon black-rubber masterbatch production
This disclosure relates to a continuous process for the preparation of rubber masterbatches....
06/14/1977
4021402Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water
There is disclosed a method for containing water having a high concentration of water-soluble industrial waste which, when in contact with bentonite, disintegrates the bentonite thereby allowing seepage of water through soil containing said water which co...
05/03/1977
4017445Process for the removal of vinyl chloride from polyvinyl chloride dispersions
Residual vinyl chloride contents of aqueous polyvinyl chloride dispersions is reduced to less than 50 ppm by withdrawing steam and vinyl chloride contained in a boiling aqueous polyvinyl chloride dispersion at a temperature of 80°-100° C. and at a vapor...
04/12/1977
 
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