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4376089 |
Particle board process using polymeric isocyanate/release agent
A binder system is disclosed which incorporates an internal release agent and comprises a mixture of polyisocyanate resin, furfural and an ester of phosphoric acid. In the process of the invention...
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4376085 |
Method for producing uniform density and weight briquettes
In a hydraulic press for briquetting loose powders into green components, a load cell senses maximum compacting force. The maximum compacting force is compared with a compacting standard force...
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4374796 |
Method for loading cosmetic material into hollow space
Cosmetic material prepared by mixing powder cosmetic material with a binder and solvent is injected under a predetermined pressure into a hollow closed space partially defined by a porous absorbing...
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4374787 |
Pressing ceramic powders
A pelleting press in which the die has at least a part which is fluid-permeable so that powder in the die can be compressed simultaneously by fluid permeating the die and mechanically from at least...
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4374791 |
Process for preparing particleboard
Particle boards are currently prepared by treating the particles (e.g. wood chips) with a binder comprising an organic polyisocyanate and an internal release agent and then subjecting the treated...
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4372899 |
Method of manufacturing particleboard and the like
Particleboard is manufactured by scattering an endless mat of chip and binder material on a series of overlapped mat carriers 17 moving on a forming conveyor 2 beneath a scattering station 1. A...
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4372903 |
Process for controlling the movement of press components
In a press (10) for briquetting loose ceramic powders into cohesive compacted articles, a shuttle (24) and shoe (26) is employed for receiving an inflow of loose powders and adapted for filling the...
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4361530 |
Method of and apparatus for shaping a strand during extrusion
An extruder has a nozzle from which it extrudes a strand formed of a mixture of wood chips and a synthetic-resin binder into a passage formed by a plurality of transversely and longitudinally...
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4360487 |
Process for hot briquetting of organic solid materials
For the purpose of briquetting organic solid materials, such as brown coal or bituminous coal, the materials are heated by hot water and/or steam and under super-atmospheric pressure to...
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4357287 |
Method of fine and very fine comminution of materials having brittle behavior
In order to carry out a fine and very fine comminution of brittle material, a bed of bulk material to be comminuted is first stressed between two practically non-yielding hard surfaces with a...
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4352704 |
Method of making porous tread
An unpatterned (grooveless) porous tire tread and a pneumatic tire incorporating the porous tread, together with methods of manufacturing the tire tread as a separate item and as an integral part...
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4352856 |
Shaped rigid articles containing fly ash and resin
A method of manufacturing shaped rigid articles comprises preparing a mixture of thermally stable particulate material and a liquid resin having a viscosity of less than about 10 Stokes to form a...
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4349325 |
Apparatus for manufacturing plastic products
An apparatus for manufacturing plastics products from a raw material containing at least 50% by weight reclaimed synthetic thermoplastics material by conveying a mat of the raw material through an...
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4349493 |
Briquets of hydrated calcium hypochlorite
A novel briquet is comprised of compressed hydrated calcium hypochlorite particles having a calcium hypochlorite content in the range from about 55 to about 75 percent by weight, a water content in...
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4349542 |
Mixture containing active ingredient and dendritic crystalline sugar for tableting
An excipient for tableting of powder mixtures, e.g. pharmaceutical powder mixtures comprises particles of an inert solid material, said particles being of average particle size in the range from...
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4346051 |
Method of press forming a zeolite article
Articles of zeolite, such as 6 mm thick plates suitable for use in cryopumps, are produced by cold isostatic pressing fine powders with pore sizes between 2-25×10 -10 m without the aid of...
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4340556 |
Production of fibrous sliver having particulate matter distributed therethrough
A fibrous sliver having particulate matter substantially homogeneously distributed therethrough is provided. The sliver is formed by first forming a low weight web of fibrous material and...
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4326844 |
Method and apparatus for curing fibrous mineral material
A method and apparatus for curing fibrous mineral material of the type in which the material containing heat-curable binder is passed through a curing station having a curing element adapted to...
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4327145 |
Process for producing sheet molding compound
A process for producing an easily handleable sheet molding compound which comprises impregnating glass fibers with a resin composition comprising (A) an unsaturated polyester having a hydroxyl...
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4325898 |
Method of operating a platen press
A platen press, and a method of operating same, for the planar and parallel pressing of particle board and like materials comprises a press bed and a press plate, one of which is movable and is...
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4323530 |
Method of lubricating compression tools of molding machines
A method for spraying compression tools, for example, consisting of upper and lower die and matrix, of machines for the manufacture of molded articles, which comprises applying dissolved, molten or...
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4322380 |
Method for feeding and orienting fibrous furnish
Methods are presented for continuous-line manufacture of composition board from furnish which is moved in a continuous-flow manner through a processing line and distributed for deposition at a...
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4320218 |
Binder composition
A binder composition which contains certain fulvenes and/or prepolymers thereof, and a metal salt catalyst.
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4316865 |
Method for heat treatment of fibrous mats
A technique is disclosed for heat treatment of fibrous mats, especially mats formed of mineral fibers such as glass and carrying a heat hardenable binder material, such as a thermosetting resin....
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4311609 |
Method of producing inorganic water-softening beads
A non-water dispersible water-softening bead is disclosed having from 80 to 90% sodium alumino silicate and from 10 to 20% low density polyethylene. The bead has a diameter of between 200 and 1000...
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4307200 |
Composite foamed material
A composite foamed material and a process for the production thereof are disclosed herein, the process comprising premixing expandable or expanded polystyrene beads, a binder and fragments of...
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4303602 |
Process for the production of composite foamed material
A composite foamed material and a process for the production thereof are disclosed herein, the process comprising premixing expandable or expanded polystyrene beads, a binder and fragments of...
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4302412 |
Method for compacting an article of powder material and for ejecting the article from a compacting die
A method for compacting powder material into an article comprising pouring the powder material in a die cavity formed above a lower punch disposed in the die cavity, retracting the lower punch to a...
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4297311 |
Method of manufacturing improved mineral board
A method of producing an improved mineral board and the resulting product are disclosed. According to the present invention, the board is predominantly composed of perlite and a binder therefor,...
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4295810 |
Apparatus for insulating building blocks
A building block having at least one chamber therein which is filled with a foamed plastic material consisting of particles interconnected at their surfaces to form gas-permeable interstices. The...
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4293507 |
Preparation of shaped bodies
There is disclosed a method for the preparation of a shaped body which includes the step of cold pressing a material to give the shaped body, wherein the material has been prepared by means of a...
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4293456 |
Process for the production of polyurethane plastics
This invention relates to a process for the production of optionally cellular polyurethane plastics using a reactive filler obtained by finely grinding a distillation residue of the type...
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4290470 |
Porous tire tread and method of bonding discrete particles to form same
An unpatterned (grooveless) porous tire tread and a pneumatic tire incorporating the porous tread, together with methods of manufacturing the tire tread as a separate item and as an integral part...
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4287145 |
Method for manufacturing neutron absorbing article
A neutron absorbing article, preferably in long, thin, flat form, suitable for but not necessarily limited to use in storage racks for spent nuclear fuel at locations between volumes of such stored...
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4285843 |
Wood chip board and process for the preparation thereof
A wood chip board the binder of which is an aminoplast, the amount of solid resin binder in the area of the surfaces of the board being less than 8% by weight of the chip material (absolutely dry)...
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4284595 |
Orientation and deposition of fibers in the manufacture of fiberboard
Continuous-line methods and apparatus for orientation and uniform deposition of fibers to enhance directional properties in and production rates of fiberboard produced from lightweight fibrous...
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4269642 |
Method of forming densified edge seals for fuel cell components
A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same...
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4268315 |
Briquette forming process and composition
A process for forming an improved briquette for use with gas-fired grills and the like. A briquette is formed from a mixture consisting essentially of sand and the following percentages of...
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4267138 |
Coating ensuring a controlled release of active ingredients of biologically active compositions, particularly pharmaceutical compositions and a process for preparation of biologically active compositions ensuring controlled release of active ingredients
A coating ensuring the controlled release of a biological active ingredient, which can be incorporated in the coating or is surrounded thereby, consists of a varnish-forming polymer selected from...
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4265846 |
Method of binding lignocellulosic materials
A low cost method of binding lignocellulosic materials utilizing ammonium based spent sulfite liquor alone as the binder. Hot pressing a mat comprising lignocellulosic material and ammonium spent...
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4260582 |
Differential expansion volume compaction
Method and apparatus for the formation of a molded article from powders and powder compacts of a material by pressure compaction of the powders under the influence of a thermally driven...
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4257834 |
Process for producing a sheet having chip design
A process for manufacturing a sheet having a chip-like design composed of a plurality of chips densely aligned in a plane without overlapping and a solidified binder uniformly filling the...
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4258169 |
Polyisocyanate compositions containing in-situ formed pyrophosphate mold release agent and process of making
A process is disclosed for the preparation of liquid, storage-stable, polyisocyanate compositions containing a release agent formed in situ which compositions are useful, for example, as binder...
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4257996 |
Process for preparing particle board and polyisocyanate-phosphorus compound release agent composition therefor
The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their...
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4257995 |
Process for preparing particle board and polyisocyanate-phosphorus compound release agent composition therefor
The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their...
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4255108 |
Furnish handling apparatus
Methods and apparatus are presented for continuous-line manufacture of composition board from furnish which is moved in a continuous-flow manner through a processing line and distributed for...
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4249906 |
Method and apparatus for handling flux fines
A process for recovering and using fines of flux, such as limestone, used in a metallurgical process, such as oxygen steelmaking, is described. The process involves collecting fines from a...
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4248819 |
Process for improving the processing properties of powdery polyolefins
The invention relates to a process for improving the processing properties of powdery polyolefins. It is endeavored by this process to obtain a polyolefin powder which can be processed on screw...
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4244941 |
Controlled release composition and process for preparing same
Solid constant release composition wherein (a) the solution of soluble core substance within the core space remains saturated during dissolution and (b) the shape and (c) the surface of the coating...
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4244934 |
Process for producing flexible graphite product
Wet graphite particles obtained by subjecting graphite particles to oxidizing treatment with nitric acid of comparatively low concentration and a permanganic acid salt and impregnating the treated...
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