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7345110 |
Process for the continuous production of an aqueous polyurethane dispersion
A process for the continuous production of an aqueous polyurethane dispersion based on at least one aliphatic and/or aromatic polyisocyanate is described, which is characterised by the following...
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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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6943223 |
Controlled shear and turbulence flow pattern within a liquid in a vessel
The present invention provides a process to create without mechanical agitation a zone of low shear, low turbulence flow pattern within a continuous liquid phase contained in a vessel and...
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6770234 |
High temperature polyester film extrusion
The present invention is directed to the method of extruding a thermoplastic co-polyester EMA (ethyl methyl acrylate) blended film at temperatures well above the melt temperature of the base...
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6723764 |
Preparation process of enlarged latex
A process for preparing an enlarged latex, which comprises (1) causing (a) an anionic surfactant and (b) at least one surfactant selected from the group consisting of a cationic surfactant and an...
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6680354 |
High 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.
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6586505 |
Aqueous resin dispersion
This invention relates to aqueous resin dispersions comprising water, resin, a surfactant, and a caseinate. This invention also relates to the process for producing the aqueous resin dispersion and...
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6586096 |
Polymethylmethacrylate nanocomposite optical article and method of making same
An optical nanocomposite material has a nanoparticulate filler dispersed in a host plastic material. According to the method of making the nanocomposite material, a predetermined temperature...
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6541542 |
Process for production of polymeric powders
A novel process for preparing polymers having an average particle size of less than about 40 micrometers is described. The process involves dissolving a polymer in a solvent to form a solution that...
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6329448 |
Method for producing dyed moulding materials
A continuous process for preparing pigmented thermoplastic molding compositions in an extruder, comprises I) in a first zone A) metering in from 10 to 99.999% by weight of a thermoplastic...
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6313198 |
Emulsion 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...
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6309788 |
Process for producing toner
A process for producing a toner. The process has the steps of dispersing a fine-particle colorant in a liquid monomer mixture containing at least a liquid polymerizable monomer, dispersing the...
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6140395 |
Method of producing hydrophilic resin
A method of producing hydrophilic resin by pulverizing and drying a hydrogel polymer, in which, during pulverization of the hydrogel polymer, the hydrogel polymer is sheared between two spiral...
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6020419 |
Transparent coating compositions containing nanoscale particles and having improved scratch resistance
The present invention relates to transparent coating compositions containing a binder and 0.5 to 25 wt. %, based on resin solids, of a material consisting of nanoscale primary particles obtained by...
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6004024 |
Emulsion 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...
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5854314 |
Crosslinkable waterborne dispersions of hydroxy functional polydiene polymers and amino resins
A crosslinkable waterborne dispersion of a hydroxy functional polydiene polymer composition which comprises: (a) 10 to 65% w of a hydroxy functional polydiene polymer, (b) 0.2 to 25% w of a...
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5847052 |
Process for producing thermoplastic elastomer composition
A process for producing a thermoplastic elastomer composition which comprises dynamically cross-linking an olefine copolymer rubber and an olefine plastic using a twin-screw extruder, said process...
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5731134 |
Gelatin 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 ...
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5594047 |
Method 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...
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5536613 |
Processes for preparing toner
A process for the preparation of pigmented toner compositions comprising: a) forming at a first temperature, a first melt mixture comprised of a partially crosslinked thermoplastic resin, pigment,...
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5530039 |
Process for manufacturing stopping compounds and use of the stopping compounds produced
Process for manufacturing stopping compounds, in particular such as can be used for motor vehicle repair lacquering, in which in a first stage at least 90 wt.-% of the solvents required and 80 to...
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5525649 |
Magnetic paint and process for producing the same
Disclosed herein in are a magnetic paint composed of a kneaded composition comprising fine magnetic iron based alloy particles, acicular fine magnetic iron oxide particles or plate-like fine...
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5426137 |
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...
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5296524 |
Composite particle dispersions
A composite particle dispersion is prepared by mixing an aqueous dispersion of polymer particles which will form the particle shell with pre-formed polymer particles which will form the core at a...
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5284905 |
Process for producing stable latex
The subject invention discloses a process for producing a neutralized latex that is useful in the manufacture of water reducible coatings which involves. (1) free radical aqueous emulsion...
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5124073 |
Continuous preparation of aqueous non-self-emulsifying polymer dispersions
Aqueous non-self-emulsifying polymer dispersions having small particles and a long shelf life and based on highly viscous reaction resins are prepared without the addition of solvents, by means of...
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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...
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4812550 |
Preparation of latices
Continuous ultrasonic irradiation during the free radical aqueous graft or over copolymerization of an unsaturated monomer on a protein provides a latex of reduced viscosity and increased solids...
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RE32801 |
Process 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,...
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4725379 |
Process and apparatus for making a solution or dispersion of a hydrosoluble powder
The invention concerns a process and an apparatus for making a stable solution or dispersion of a hydrosoluble powder. It is characterized by the simultaneous use of a system for withdrawing powder...
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4705640 |
Flocculants and processes for their preparation
The flocculation performance, for instance on low pressure or other pressure filtration (such as a belt press), of a solution of a high molecular weight organic polymeric flocculant having IV above...
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4473673 |
Cast polyester resin process and product
A pretreatment process to remove entrapped air from liquid polyester blends intended as the matrix of cast marble is disclosed. The formulated blend is subjected to a simultaneous evacuating,...
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4464493 |
Process for dissolving EPM and EPDM polymers in oil
A method and apparatus of taking a solid, high molecular weight EPM or EPDM polymer into solution in oil as a shear stable viscosity index improver comprising passing the polymer through an...
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4404364 |
Optimum method of milling rubber
By varying the temperature and/or the flow rate of water passing through rubber mill rolls and measuring the stock temperature of the rubber being milled, the optimum flow rate and water...
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4316009 |
Process for the purification of polycarbonate solutions
Organic-solvent solutions of polycarbonates containing impurities, e.g., sodium chloride and sodium carbonate formed during the preparation of the polycarbonates, and/or catalysts, are purified by...
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4303569 |
Coagulation 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...
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4302377 |
Latex coagulation
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 and the...
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4257817 |
Method of reducing binder demand of inorganic filler
The binder demand of particulate inorganic filler is reduced without essentially altering the filler's surface area by subjecting the filler alone to intense rotary impact agitation at a peripheral...
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4248743 |
Preparing a composite of wood pulp dispersed in a polymeric matrix
A composite of polymeric matrix and wood pulp is prepared by masticating such proportion of polymeric matrix as provides a continuous phase and wood pulp having a tensile strength below about 10...
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4123403 |
Continuous process for preparing aqueous polymer microsuspensions
Aqueous polymer microsuspensions having controlled particle size and narrow particle size distribution are prepared by a continuous process comprising the steps of (a) forming a heterogeneous...
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4022749 |
Formation of composite particulate material using high energy rotary impact milling
The formation of composite materials is disclosed, using high energy rotary impact milling. The illustrations utilize polymer resin particles as the matrix material, and solid particle fillers....
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4020266 |
Oriented crystallization of polymers
Crystalline polymer fibrils having a highly ordered crystalline core surrounded by less ordered crystalline polymer are produced by causing a solution of the polymer to flow through a gauze. The...
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3966655 |
Manufacture of polyester imide dispersions
Aqueous polyester imide dispersions are prepared by allowing molten polyester imide to solidify and then comminuting it in the dry state to a particle size of 100 μm or less, whereupon the...
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3951901 |
Process for the production of homogeneous polyolefin rubber-oil mixtures
A process for preparing a homogeneous liquid mixture consisting essentially of a normally solid polyolefin rubber copolymer of at least two different monoolefinically unsaturated hydrocarbons of...
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3945976 |
Process for producing impact resistant polymer
Our invention concerns a continuous process for producing an impact resistant polymer wherein a vinyl aromatic compound and rubber are mass polymerized under increasing temperature conditions. The...
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3892701 |
Method of treating aqueous emulsion of solvent/polymer solution of precursor latex particle size to form latex
The preparation of aqueous latices from solvent dispersions of elastomers and other high polymer compositions has presented problems including excessive viscosity during processing and foaming and...
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3892697 |
Preparation of crosslinked polymer latex from aqueous emulsion of solvent/polymer solution of precursor latex particle size
The preparation of aqueous latices from solvent dispersions of elastomers and other high polymer compositions has presented problems including excessive viscosity during processing and foaming and...
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3879326 |
PREPARATION OF LATEX FROM AQUEOUS EMULSION OF SOLVENT/POLYMER SOLUTION
The preparation of aqueous latices from solvent dispersions of elastomers and other high polymer compositions has presented problems including excessive viscosity during processing and foaming and...
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3852234 |
PROCESS AND APPARATUS FOR DISSOLVING WATER SOLUBLE POLYMERS AND GUMS IN WATER INVOLVING INVERSION OF WATER-IN-OIL EMULSIONS
Water soluble vinyl addition polymers and gums are rapidly dissolved in water by first dispersing these polymers or gums into a water-in-oil emulsion, then mixing the water-in-oil emulsion with...
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3673147 |
METHOD OF PREPARING DELUSTERED FILAMENTS AND FIBERS
The process for preparing delustered filaments and fibers is carried out by adding an amount of delustrant in a ratio of 5 to 20 parts by weight of delustrant per 100 parts of polymer chips under...
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