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7504056 |
Extrusion molding system and method
An extrusion molding system includes a die having a first opening with a unvariable shape and a second opening with a variable shape, an extruder which feeds resin to the die, and a gear pump...
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7442331 |
Film casting method
A pipe for supplying a dope to a co-casting die consists of a goose neck portion connected to a feed block of the co-casting die, and a straight pipe portion connected to the goose neck portion....
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7381788 |
Method for continuous production of polyamide
Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a...
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7364676 |
Slurry spreader for cementitious board production
The invention provides a board forming system comprising a forming table comprising a belt with a surface for conveying a backing layer; a mixer fitted with a mechanism capable of depositing...
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7175411 |
Process for the production of a cable and device for performing this process
The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at...
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7172399 |
Spin beam
An apparatus for spinning melt-spun filament yarns including a spin beam is disclosed. A polymer melt fed to a spin beam is distributed within the spin beam to a plurality of spinning cans mounted...
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7141191 |
Triple purpose lay-up tool
The present invention provides a method and apparatus for use in manufacturing a composite part includes molding a composite part on a lay-up tool, machining a sacrificial portion of a first...
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7025916 |
Process of making bioengineered collagen fibrils
The invention is directed to a class of fiber or strand suspension compositions that may be processed further into viscoelastic pastes or porous solids. The preferred compositions of the invention...
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6926854 |
Process of making polyester fine denier multifilament
Manufacturing method for polyester fine denier multifilament. The length of a protective delay shroud of the radial outer-flow quenching system used in melt spinning process for manufacturing fine...
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6858057 |
Filter media
A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in...
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6830715 |
Method and device for producing elastane threads from recycling material
Method and device for producing elastane threads from spinning solutions using recycled elastane material.
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6830644 |
Method of producing a laminate using a heated blower
Rollers, substrates, products and the like are not smeared with a sticky volatile component when a gas is blown from a blower provided near an extruding die to produce laminates. The blower is...
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6814904 |
Method for producing cellulosic forms
Process for producing formed cellulosic articles, particularly fibers and filaments, comprising a) dissolving cellulose in an aqueous solution of a tertiary amine oxide, especially...
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6790392 |
Application of a vaporous mist for spining systems with rectangular nozzles
A method and apparatus for the steam misting of rectangular nozzles and spinning systems equipped therewith for producing polyamide filaments whereby the steam feed is conducted through a tube loop...
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6780358 |
Manufacturing method for polyester yarn excellent in yarn transferring, packaging and loosing with no white powder occurred when weaving and polyester yarn made from the same
Provide a manufacturing method for polyester yarn excellent in yarn transferring, packaging and loosing with no white powder occurred when weaving, which is heating polyester polymer of inherent...
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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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6764623 |
Process of making polyester filamentary yarn for tire cords
Polyester multi-filamentary yarn, useful as tire reinforcement, is produced by melting polyester resin at 290° C. or below including at least 90 mol % of polyethylene terephthalate with intrinsic...
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6669882 |
Process of making fiber having functional mineral powder
A method of producing fiber having functional mineral powders includes the steps of a first pulverizing functional mineral which crystal form of is pinacoid, a second closely pulverizing the first...
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6579480 |
Method of maintaining an exterior of an operating die system
A method of maintaining a die system for the extrusion of polymer permits external cleaning and maintenance without shutting down the operation. Removable die inserts are located on one or both...
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6565786 |
Method for producing formed article from polyphosphoric acid solution
The present invention provides a method for producing a formed article from a dope comprising a polyphosphoric acid solvent and a polymer soluble in polyphosphoric acid, which includes using a...
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6524360 |
Melt blown composite HEPA filter media and vacuum bag
An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration...
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6485662 |
Process for preparing a simulated in situ polyethylene blend
A process comprising: (i) providing a first polyethylene, prepared independently, having a melt index in the range of about 5 to about 3000 grams per 10 minutes and a density in the range of about...
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6461548 |
Method for improving injection molding of transparent optical components
The present method for improving the quality of injection molded optical components consists of proper cleaning of the injection molding apparatus between uses. Injection parts that are not...
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6358449 |
Apparatus and method for reducing die accumulation
A polymeric film extrusion die having a die body with a molten polymer inlet, a molten polymer exit, and forming a molten polymer conduit providing a fluid communication between the molten polymer...
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6312634 |
Process of making polyester fibers
A method for preparing industrial polyester fibers involving melt-spinning polyester chips through a nozzle, oiling the resultant filaments with an aqueous emulsion oiling agent, and producing,...
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6284174 |
Melt spinning pack and synthetic fiber manufacturing method
A melt spinning pack, including a pack case, a spinneret having many spinning holes positioned at the bottom of the case, a pack cap having a polymer introducing hole at the center positioned at...
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6171536 |
Apparatus and method for melt spinning of molten polymeric material
A method and apparatus for melt spinning molten polymeric material into filaments, preferably embodied in the form of a spin pack assembly, utilizes an annular polymer filter formed of a screen...
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6159518 |
Process and wire assembly for separating dough sheet from rotating roller surface
A sheeter which includes a wire assembly for separating a sheet of dough from a surface of a rotating roller. The wire assembly is formed from a thin sheet of stainless steel with portions of the...
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6159405 |
Phenolic resin system for pultrusion composites
A fire resistant phenolic resole-resorcinol novolac system for a pultrusion process, having a much improved pot life of the two part mixture, lower emissions during processing and a much better...
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6110251 |
Gas filtration media and method of making the same
An improved gas filtration media with a lower initial pressure drop and increased dirt holding capacity includes a fibrous mat of randomly oriented meltblown polymeric fibers made from a polymer...
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6056901 |
Method for manufacture of regenerated synthetic resin product
A method which is capable of manufacturing regenerated synthetic resin products, particularly slide fastener parts of regenerated synthetic resin, with good quality by using as a raw material such...
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6033609 |
Device and method to prevent spinneret hole contamination
A spin pot for spinning synthetic polymer fibers has a polymer filter, a spinneret downstream of the polymer filter, and an electroformed perforated screen positioned between the polymer filter and...
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6013217 |
Method for extruding thermoplastic resins
The present invention relates to a method for processing a thermoplastic resin composition by extruding the composition through a nickel die to provide an extrudate having a low degree of surface...
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5997789 |
Process of melt-spinning synthetic fiber
A method for melt-spinning synthetic fiber, characterized by using a spinning device of which the part to be contacted with polymer in melt is coated with a film of an oxide, nitride or carbide of...
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5961908 |
Apparatus and a process for the production of elastane filaments
A spinning noxxle apparatus for the production of elastane filaments from spinning solutions by the wet spinning method comprising a feed line (7) for the spinning solution, a filter unit (1)...
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5948336 |
Start-up procedure for an underwater granulating die
An underwater granulating method in which thermoplastic resin material is kneaded and melted by a kneading extruder while the melted resin material is extruded into cooling water from nozzles of a...
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5911931 |
Resin forming method
A method for forming a resin including the steps of forming a resin by using a resin forming nozzle device while supplying thereto a surface lubricant for mold release, having a viscosity of 0.1 to...
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5891370 |
Process for producing cellulosic moldings
A process for manufacturing formed objects such as fibers, filaments, yarns, films, membranes in form of flat membranes, hose membranes and hollow fiber membranes and the like, involves pressing...
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5882372 |
Apparatus for use in confining a gaseous stream containing wet or sticky particles or fibers
In a process of making gas laid products by entraining particles at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and through a permeable...
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5849340 |
Device for producing extruded bodies of a plastic material
A device for the manufacture of extruded bodies from a plastic material or a damp pulp, comprising, arranged at an outlet end of a container for the material or the pulp, an output device (18) with...
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5849231 |
Melt extrusion process
Melt extrusion processes involving phosphite stabilized polyolefin compositions subject to solid by-product formation during melt extrusion are improved by the addition of an epoxidized ester of a...
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5840197 |
Method for filtering a screen changer and a screen changer
The screen changer of the invention is structured such that a material discharge passage formed in a housing is brought into communication with the in-flow passage of a through passage formed in...
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5810902 |
Method and apparatus for making air products
In a process of making gas laid products by entraining particles including fibers at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and...
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5804119 |
Process for producing biaxially oriented polyester film as a base film for a photographic film
A process for producing a biaxially oriented polyester film including the steps of causing a molten aromatic polyester which contains naphthalene-2,6-dicarboxylatic acid as a main dicarboxylic acid...
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5783620 |
Thermoplastic resin composition for profile extrusion
A thermoplastic resin composition for profile extrusion, comprises: (A1) 50 to 99.5% by weight of a thermoplastic aromatic polycarbonate resin; (A2) 0 to 40% by weight of a thermoplastic resin...
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5766530 |
Process for the production of cellulose moulded bodies
The invention is concerned with a process for the production of cellulose moulded bodies wherein a suspension of cellulose in an aqueous solution of a tertiary amine-oxide is transformed into a...
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5766523 |
Blow spinning die and process for spinning carbon fibers from solvated pitches
The present invention provides a blow spinning die particularly suited for spinning solvated pitch into fibers having a random cross-sectional structure. Additionally, the present invention...
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5730885 |
Screen packs for reducing gels in polypropylene copolymers
The present invention teaches a method for reducing the number and size of polymeric gels in a polypropylene blend by filtering the blend through multiple filter screens during the extrusion of the...
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5720990 |
Food sheeter
A wire separator apparatus for a food sheeter includes motor driven feed spools of separator wire, the separator wire being suspended from wire pulleys across the face of a roller. Motor driven...
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5707569 |
Processing aid system for polyolefins
Polar-side-group-containing extrusion adjuvants, such as ethylene diamine tetraacetic acid or ionomer, that counteract the deleterious effect of certain additives such as zinc stearate, used in...
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