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5229044 |
Method of checking a pickup load cell in a rotary tableting machine
A method is provided for checking a pickup load cell in a tablet-making machine which detects the compressive force applied to a tablet being formed. According to the method, a dummy tablet-forming...
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5223192 |
Method of and arrangement for monitoring pressing forces in a pelletizing machine
A method of monitoring maximum pressing forces of a pelletizing machine provided with a rotatable matrix disc and plungers, involves the steps of supplying values corresponding to pressing forces...
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5223199 |
Method of and apparatus for pumping particulate solids
A method of pumping particulate solids that have an initial bulk density which is lower than its structural density; the method comprises providing a flow channel (12) having an inlet (120) and an...
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5221542 |
Apparatus for making a solid electrolyte holder
The invention provides a method and apparatus for making an electrochemical cell solid electrolyte holder. A layer of solid electrolyte powder or its precursor is formed around an externally screw...
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5219504 |
Method of making sorbent, impact resistant container
An article comprising compressed particles of polyolefin microfibers is provided. The article has a solidity of at least 20% is particularly suitable as a container for shipping and storing...
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5217665 |
Phenol formaldehyde steam pressing of waferboard
The present invention relates to a method of producing a waferboard by applying first a liquid phenol formaldehyde resin to the surface of the wafers then a powdered phenol formaldehyde resin...
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5213737 |
Extrusion method and apparatus for producing a body from powder material
An improvement in a method and apparatus is provided in extruding a powder material to form an article, in which the material is passed through an extruder and then through a die, wherein the...
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5209886 |
Composition and method for the manufacture of a board
There is provided a method of preparing a natural fibrous material particle composition such as a wood chip composition for use in forming a particle board which includes the steps of impregnating...
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5209885 |
Aqueous extrusion of silicon nitride
A water-based silicon nitride powder extrusion mixture is prepared. The mixture also contains oleic acid, glycerin, methyl cellulose and a polyacrylic acid-containing polymer. The mixture can be...
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5205971 |
Manufacture of non-whiteware ceramic articles
Non-whiteware ceramic articles having an increased green strength are prepared from slip compositions containing a polyalkylene polyamine as an additive or a mixture of a polyalkylene polyamine and...
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5203940 |
Method and apparatus for thermoforming plastic sheets
A technique is provided for forming an article having a sharp, detailed edge by thermoforming thermoplastic resin prepregs containing randomly arranged reinforcing fibers and ordered, substantially...
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5204040 |
Method of making foam material
A method of making foam material includes a process of impregnating comminuted particles of a previously formed foam material with a first foaming reaction solution made up of polyol, catalyst and...
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5188785 |
Apparatus and method of manufacturing synthetic boards including fire-retardant boards
A method and apparatus for producing a synthetic board from cellulosic or lignocellulosic fibers is disclosed wherein a standard isocyanate binder is emulsified and immediately applied to the...
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5185114 |
Method for producing processed wood material panels
The production of wood material particles into board or panels, such as chipboard, fiberboard, OSB panels, MDF panels and the like, involves coating the particles with a binder free of any...
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5185115 |
Flat extrusion method for manufacturing inorganically or organically bonded wooded materials, especially multilayer panels
A flat extrusion method for manufacturing especially multilayer panels and device for working the method. The method consists of the following method steps: simultaneous addition of mixtures by...
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5180704 |
Oil sorption with surface-modified rubber
A method for sorbing oil comprises contacting the oil with an oil sorbing article comprising a plurality of substantially cross-linked polymer particles having adhesive layers formed on a portion...
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5171495 |
Immersion nozzles for metal melts
A refractory immersion nozzle which can be used for processing metal melts, and a process for producing the nozzle by providing a mixture containing alumina having a maximum grain size of 250...
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5164138 |
Material comprising silicon and process for its manufacture
A novel material can be obtained by chemical reaction from elemental or alloyed silicon powder, to which fillers are optionally added. The novel material, which can be worked mechanically, can be...
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5164206 |
Tooling face configuration-particularly adapted for forming tablets (Cargille Curve)
There is disclosed a tooling (punch) face for pressing chemical tablets which essentially comprises a central flat area of about 75% of the outer diameter of the tool surrounded by a peripheral...
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5160470 |
Method for compacting silica fume
The present invention is a simple method for densifying colloidal silica. The method comprises feeding colloidal silica, recovered from a smelting process and having a density within a range of...
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5160503 |
Water-soluble blends of active methylene compounds and polyhydric alcohols as formaldehyde scavengers
A composition for a formaldehyde scavenger is provided which consists of a water-soluble blend of a substituted or unsubstituted polyhydric alcohol and an active methylene compound selected from...
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5160679 |
Process for making particle board including the use of acetoacetamide as a formaldehyde scavenger
Acetoacetamide is used as an effective formaldehyde scavenger in the manufacture of composition board using a urea formaldehyde adhesive resin and in the manufacture of durable press finished...
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5158727 |
Polyolefin/filler composite materials and their preparation and use
An insulating composition comprises a polyolefin, preferably polypropylene, and hollow microspheres, at least some of which have been pre-treated with a chain-scission agent and, optionally, a...
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5158012 |
Method of operating a press for producing pressed board
A press for the production of pressed board with injection of steam utilizes press platens to which the steam is fed to the steam-feed channels from opposite sides in a collision flow, the chanels...
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5151230 |
Process for production of products formed of polymer bonded and granulated particles
A process formulation and apparatus for producing formed parts of polymeric binders and elastic or inflexible particularized ingredients. A formulation for forming a formed material upon the...
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5151238 |
Process for producing composite materials
Process for producing a composite material in which a cellulosic substrate is treated with a solution of a polyfunctional isocyanate in an aprotic swelling solvent and the substrate is then...
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5147446 |
Method for fabrication of dense compacts from nano-sized particles using high pressures and cryogenic temperatures
A method of producing a dense compact of ultra-fine powder employs low temperatures and high pressures to produce a very dense, nearly ideally packed compact from a starting nano-sized powder. The...
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5145625 |
Method of preparing shaped articles from a mineral aggregate and a polyacrylate binder
Shaped articles are produced from a finely particulate material as aggregate and an aqueous binder preparation containing an acrylate polymer by moistening the aggregate with the binder...
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5145693 |
Arrangement for monitoring pressing forces in a pelletizing machine
A method of monitoring maximum pressing forces of a pelletizing machine provided with a rotatable matrix disc and plungers, involves the steps of supplying values corresponding to pressing forces...
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5145908 |
Method for molding ceramic powders using a water-based gel casting process
A method for molding ceramic powders comprises forming a slurry mixture including ceramic powder, a dispersant, and a monomer solution. The monomer solution includes at least one monofunctional...
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5145624 |
Pressing of whiteware ceramic articles
A process for the preparation of whiteware ceramic articles employs an alkylenediamine, such as ethylenediamine, as an additive to increase the green strength of articles prepared by pressing....
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5137663 |
Process and container for encapsulation of workpieces for high pressure processing
A container for the high temperature, high pressure processing of workpieces is disclosed. Such container has a removable plug with a deformable seal permitting rapid access to the interior of the...
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5137667 |
Process for producing elastic graphite molded products
A process for producing an elastic graphite molded product having light weight and excellent elasticity which comprises the steps of mixing elastic graphite particles as fillers with a binder...
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5134023 |
Process for making stable fiberboard from used paper and fiberboard made by such process
Used paper and paper products are recycled into fiberboard formed under conditions of pressure, heat and injection of steam under pressure for sufficient time to render the fiberboard dimensionally...
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5122319 |
Method of forming thin-walled elongated cylindrical compact for a magnet
A method of forming a cylindrical compact for a cylindrical magnet is improved by moving a core pin and a die of a mold at the same time of pressing magnet materials with a pressing punch in the...
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5122311 |
Method of manufacture
In a method of manufacturing a member having a cross-sectional area which varies along its length, the member is produced by filling a cavity 6 in a die 5 with powdered material and compressing it....
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5112652 |
Formaldehyde scavenging process useful in manufacturing durable press finished fabric
Acetoacetamide is used as an effective formaldehyde scavenger in the manufacture of composition board using a urea formaldehyde adhesive resin and in the manufacture of durable press finished...
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5112801 |
Mechanical alignment of particles for use in fabricating superconducting and permanent magnetic materials
A method for mechanically aligning oriented superconducting or permanently magnetic materials for further processing into constructs. This pretreatment optimizes the final crystallographic...
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5102595 |
Apparatus and method for piling strands in random orientation
A method and apparatus for depositing straight elongate fiber-bundle strands, such as sugarcane or sweet sorghum rind strands, in a loose pile on a conveyor with the strands randomly oriented in...
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5100604 |
Method for making a resin-bonded magnet comprising a ferromagnetic material and a resin composition
A method for making a resin-bonded magnet of flaky pieces of a ferromagnetic alloy and a resin composition which comprises providing composite granules obtained from a mixture of magnetically...
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5100602 |
Method and apparatus for powder filling an isostatic pressing mold
A method and apparatus for filling generally cylindrical molds with powder particles is disclosed. A stream of powder particles is fed into a mold, and the powder particles are compacted in...
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5098621 |
Method of forming a foam substrate and micropackaged active ingredient particle composite
A new composite material of an open foam substrate and bonded micropackaged active ingredient particles is generated by foam polymerization of a prepolymer phase and an aqueous phase. The foam...
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5095048 |
Method of manufacturing a composition for use in injection molding powder metallurgy
A composition for use in injection molding powder metallurgy, is provided by applying mechanical sphericalization to a metal powder of an irregular shape and having an average grain size of not...
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5093051 |
Process for making cellulose-containing products
A fusion bonded fiber product is made by compressing between heated dies a mat of moisture-containing fibers of the type that change irreversibly to an amorphous nonglassy state that permits...
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5093058 |
Apparatus and method of manufacturing synthetic boards
A method and apparatus for producing a synthetic board from cellulosic or lignocellulosic fibers is disclosed wherein a standard isocyanate binder is emulsified and immediately applied to the...
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5088915 |
Coated-core press
The invention concerns a coated-core press for making coated tablets. In prior art coated-core presses, the problem arises of centering the cores exactly in the powder undercoating in the matrix,...
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5087398 |
Process and apparatus for compressing, and monitoring the compression of, pulverulent materials and a press applying same
This invention relates to an apparatus for compressing and monitoring the force of compression detected by a sensor and/or the height of doses of pulverulent materials which are compacted in a...
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5087400 |
Process for making a product serving as a cultivation support
Process and installation for making a composite product, obtained by removing the fibre from wood chippings or other cellulose raw material, especially for above-ground cultivation purposes. The...
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5087513 |
Flame retardant film and composite containing superabsorbent polymer
Disclosed by this invention are polybenzimidazole polymer/superabsorbent polymer articles. These articles are prepared by either mixing the superabsorbent polymer particulates with the...
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5085812 |
Method of and plant for the manufacture of wood chipboards and similar board materials
In a double-belt press for the manufacture of wood chip boards and the like having a width less than the nominal working width of the double-belt press, the forming belts are held in contact with...
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