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| Number | Title | Issue Date |
| 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 steps: a) production of an aqueous p... | 03/18/2008 |
| 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 has excellent storage stability over time. Disclosed is a process for p... | 08/07/2007 |
| 7100851 | Method and apparatus for dispersing pigment in liquid medium The present invention provides an apparatus for dispersing pigment in a water-based or oil-based intermediate mixture for producing a coating composition comprising a mixer and a dispersing device, the mixer having a vacuum pump and capable of conducting a primary m... | 09/05/2006 |
| 7034067 | Adjustable jet disperser for producing aqueous two-component polyurethane paint emulsions The invention relates to a process for the production of aqueous two-component polyurethane lacquer emulsions, with variable throughput, and to the use thereof as high-quality lacquers and coatings. ... | 04/25/2006 |
| 7022747 | Method for creating microsphere polymers and particles A polymeric material is produced by atomizing into droplets a composition containing addition-polymerizable material and reacting the addition polymerizable material in the droplets to produce the particulate product. The polymeric product may be, for example, a pow... | 04/04/2006 |
| H2134 | Apparatus and method for forming polymer crumb The present invention provides a contractor apparatus and method for removing solvent from a polymer cement. The resulting polymer is substantially free of solvent and exhibits improved oil absorption and lower fines. In one aspect, a contractor is provided includin... | 12/06/2005 |
| 6841614 | Polymer granules produced by fluidized bed granulation The invention relates to a method of producing soluble polymer granules which are suitable for use in washing and/or cleaning surfactants. According to said method, an aqueous preparation of the polymer which contains at least 30% by weight polymer, optionally in ad... | 01/11/2005 |
| 6776929 | Method of forming a conductive thermoplastic composition A conductive thermoplastic composition is prepared by a method in which poly (arylene ether) and, optionally, a portion of polyamide are added to a first feed port, polyamide is added to a second feed port, and a concentrate of conductive carbon black in polyamide i... | 08/17/2004 |
| 6716930 | Method for processing ethylene-vinyl alcohol copolymer solution A method for processing a solution of ethylene-vinyl alcohol copolymer in a solvent other than water, which involves continuously substituting a part of the solvent in the solution with water to produce a high-concentration ethylene vinyl alcohol copolymer solution ... | 04/06/2004 |
| 6696514 | Process useful for making in-situ silicon carbide in the form of particulate, whiskers and fibres in an inorganic composite matrix A process for making in-situ carbide in the form of particulate, whiskers and fibres in an inorganic composite matrix, which comprises, dissolving 38 to 73.5 Wt % of phenolic resin in an organic solvent to obtain a phenolic resin solution, adding 4.2-11.0... | 02/24/2004 |
| 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.... | 01/20/2004 |
| 6590040 | Process for the continuous production of superabsorbent polymers from PAN emulsions A process for producing a superabsorbent polymer is described. The process that entails a continuous hydrolysis of an aqueous emulsion of crosslinked or uncrosslinked polyacrylonitrile in the form of fine particles is carried out in a cascade of stirred t... | 07/08/2003 |
| 6414054 | Continuous preparation of heat-vulcanizable silicone compositions High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer an... | 07/02/2002 |
| 6348522 | Process for the continuous preparation of rubber powders and a device for carrying out the process A process for continuous preparation of filler-containing rubber powders including mixing a filler suspension and rubber latex in the liquid phase. The liquid mixture is passed through a tube, at least a coagulant is added to the tube and filler-containin... | 02/19/2002 |
| 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 polymer or electrolyte. The purging avoids the contact of... | 11/06/2001 |
| 6252018 | Use of a single-stage or multistage stirrer to prepare polymers At least one single-stage or multistage stirrer which produces not only a tangential flow component but also an axial flow field is used in a stirred-vessel reactor in connection with the preparation of polymers by liquid phase polymerization.... | 06/26/2001 |
| 6218466 | Method for the continuous preparation of liquid silicone rubber base A method is provided that can very rapidly produce a liquid silicone rubber base in which even microfine electrically conductive filler with specific surface of at least 0.5 m2 /g will be homogeneously dispersed in liquid organopolysiloxane wit... | 04/17/2001 |
| 6166110 | Process for preparing pressure sensitive adhesives A method for producing a pressure sensitive adhesive composition includes at least one elastomer that produces a substantially homogeneous pressure sensitive adhesive composition. The method is particularly well suited for relatively high throughput conti... | 12/26/2000 |
| 6040364 | Methods for producing elastomeric compositions Elastomeric compositions are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture flowing continuously from the mixing z... | 03/21/2000 |
| 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 polymer or electrolyte. The purging avoids the contact of... | 12/21/1999 |
| 5929206 | Continuous process for removing the residual monomer or monomers from an aqueous latex of a synthetic polymer and device for carrying it out The latex is treated by passage through a heat exchanger consisting of a closed chamber 1 divided into two distinct superposed parts, the unobstructed upper part 3 being placed under reduced pressure and communicating with a plant for recovery of the resi... | 07/27/1999 |
| 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 being characterized in that said twin-screw extruder compr... | 12/08/1998 |
| 5723518 | Aqueous two-component polyurethane coating compositions and a method for their preparation A method is described for the preparation of aqueous coating compositions based on resin binders containing isocyanate-reactive hydrogen atoms and polyisocyanates, by mixing the components with water, wherein the mixture is forced at a pressure of from 1 ... | 03/03/1998 |
| 5665796 | Method for the continuous preparation of organopolysiloxane emulsions Method and apparatus for preparing uniform highly dispersed emulsions by using a low drive power and without pressurization, making possible continuous mass production of uniform organopolysiloxane emulsions. An organopolysiloxane, water and a emulsifying... | 09/09/1997 |
| 5621024 | Preparation of thermoplastic polyurethanes The present invention relates to a process for the preparation of thermoplastic polyurethane by reacting a) organic and/or modified organic polyisocyanates with b) at least one oligomeric polyhydroxy and/or polyamino compound having an average molecular w... | 04/15/1997 |
| 5563189 | Method for the continuous preparation of organopolysiloxane emulsions Method and apparatus for preparing uniform highly dispersed emulsions by using a low drive power and without pressurization, making possible continuous mass production of uniform organopolysiloxane emulsions. An organopolysiloxane, water and a emulsifying... | 10/08/1996 |
| 5550175 | Solventless compounding and coating of non-thermoplastic hydrocarbon elastomers A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and... | 08/27/1996 |
| 5539033 | Solventless compounding and coating of non-thermoplastic hydrocarbon elastomers A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and... | 07/23/1996 |
| 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 magnetic ferrite particles, a binder resin and an organic solven... | 06/11/1996 |
| 5498646 | Production of block polymer adhesives Method for preparing adhesive compositions subjecting a mixture of block polymer and other adhesive constituents e.g., resin(s) and oil(s) to shearing and smearing in an emulsifier disperser.... | 03/12/1996 |
| 5486554 | Method and apparatus for treatment of asphalt and synthetic resins A low cost method for preparing foamed or aerated asphalt-rubber paving compositions is provided wherein a flowable mixture including respective quantities of asphalt and finally divided reclaimed rubber particles is first directed into a rocket-type reac... | 01/23/1996 |
| 5453158 | Polymer devolatilizer An improved polymer devolatilization apparatus including a flat plate heater having a multiplicity of flat plates defining a plurality of channels, each channel having a substantially uniform height but varying width over its length, each channel includin... | 09/26/1995 |
| 5407975 | Dry polymer and electrolyte mixing system The invention provides a system for thoroughly wetting a dry polymer and mixing it with water, or another electrolyte, to make an electrolyte/polymer mixture. The system uses a funnel which has water introduced along a circumferential pattern therein to f... | 04/18/1995 |
| 5405917 | Selective admixture of additives for modifying a polymer The molecular weight of solid polymers, particularly polyolefins, is modified by addition of organic peroxides (or other free radical generators), which is admixed in a first reaction zone. The polymer is then melted followed by addition of additives such... | 04/11/1995 |
| 5369149 | Method for continuously preparing thermo-crosslinkable and/or thermoplastic elastomer blends A method for preparing thermo-crosslinkable and/or thermoplastic elastomer blends by mixing the elastomer with plasticizer oil and other additives, said method comprising the steps of: (a) continuously premixing the crushed elastomer in an annular zone mixer ... | 11/29/1994 |
| 5338779 | Dry polymer activation apparatus and method Polymer activation apparatus for activating a batch of dry polymer in dilution water includes a tank which contains the dilution water in a mixing vessel and a mixing assembly within the mixing vessel. The dilution water is circulated at a high rate throu... | 08/16/1994 |
| 5244961 | Thermoplastic compositions and process for preparing the same A non-vulcanized thermoplastic composition comprising a polyamide and an elastomeric halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene is prepared by blending the polyamide and elastomeric copolymer in ... | 09/14/1993 |
| 5135968 | Methods and apparatus for treating wastewater Apparatus for diluting and activating polymer molecules includes primary polymer dilution and activation apparatus, secondary dilution apparatus, and apparatus for diverting a desired amount of dilution water around the primary dilution and activation app... | 08/04/1992 |
| 4857565 | Process for the continuous production of aqueous polyurethane dispersions and their use as a coating composition or as an adhesive The present invention is directed to a continuous process for the production of aqueous polyurethane dispersions by continuously mixing solutions of polyurethanes or isocyanate prepolymers dissolved in an organic solvent with water and subsequently contin... | 08/15/1989 |
| 4808262 | Method for devolatilizing polymer solutions A method and apparatus for devolatilizing high viscosity polymer solutions are provided wherein high viscosity polymer solutions are heated along a short zone of indirect heat exchange. The residence time within the zone of indirect heat exchange ranges f... | 02/28/1989 |
