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7347680 |
Device for producing lay-flat tubes in blown film extrusion installation
A lay-flat device of a blown film extrusion installation includes brush rollers in the upper half entirely or partly. The brush rollers include bristles which are directed obliquely outwards and...
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7316552 |
Low turbulence die assembly for meltblowing apparatus
An apparatus for forming meltblown material from a molten polymer includes a die configured with channels in the tip of the die through which molten polymer is extruded for forming meltblown...
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7296986 |
Induction coupling for braking roller drive on the flat-folding device
Equipment that lays flat films or tubular films extruded by a blown film extrusion installation has at least one roller, which guides the walls of the film or the tubular film. The lay-flat...
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7267535 |
Pipe molding apparatus with mold tunnel air turbulence
An extruding apparatus which extrudes continuous length of hollow plastic product has an extruder ( 3 ) which feeds molten plastic through die equipment ( 5 ) to a mold tunnel ( 7 ) formed by side...
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7220113 |
Gauge distribution apparatus for plastic film
Gauge distribution apparatus for plastic film has a frame, a rotor mounted on the frame for sequential reversed rotation about a substantially vertical axis, and at least one slot in the rotor...
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7195471 |
Blowing head for extruding films, comprising clamping elements containing ducts for cooling air
Tubular film die head for extruding single-layer or multi-layer film which has at least the following features: a substantially annular die gap, fastening elements which fix at least two components...
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7175415 |
Moulding system, in particular a calibration die
The invention relates to a moulding system ( 3 ), in particular a calibration die ( 17 ), for an extrusion plant, with preferably parallel inlet and outlet faces ( 28, 29 ) spaced at a distance...
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7112047 |
Infinitely adjustable calibration sleeve for extruded plastic pipes
Infinitely adjustable calibration sleeve for extruded plastic pipes includes an inlet head and two strap layers that intersect like a lattice grate and that are linked with each other at the...
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7018187 |
Apparatus for smoothing and cooling a synthetic resin web produced by a slit nozzle
An apparatus for smoothing and cooling of slit nozzle synthetic web passes the web following the smoothing gap between two rollers along a cooled surface and into contact with cold air introduced...
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7001165 |
Sizer for forming shaped polymeric articles and method of sizing polymeric articles
A sizer assembly for providing a shaped polymeric article in an extrusion process comprises a sizer body having a product profile channel corresponding to the shaped polymeric article formed...
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6935855 |
Apparatus for extrusion of water-containing products
The inventions relates to an extrusion apparatus suited for water-containing products which heat-expand by internal boiling of water by pressure relief after passing through extrusion nozzles. The...
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6875002 |
Oscillating guide cage
An external stabilizer or guide cage for plastic film extrusion has an upper frame comprised of a ring and structure for rotatably supporting the ring. A lower frame is suspended from the ring of...
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6797100 |
Method and apparatus for the manufacture of a tube made of film on a cellulose basis which an insert reinforces
The invention relates to a film tube ( 10 ) based on cellulose which is produced by extruding an aqueous cellulose-N-methyl-morpholine-N-oxide (NMMO) solution through a ring nozzle ( 21 ) onto a...
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6793854 |
Method and apparatus for making plastic film, and plastic film
A method and an apparatus for making a plastic film, and to a plastic film wherein the method includes extruding a film from plastic material by an extruder and orientating the film after...
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6783344 |
Method of and device for controlling and automatically controlling the thickness profile in the production of blown film
A device for controlling thickness of film in a blown film extruder has a blow head, a main cooling ring and an additional cooling ring. The additional cooling ring supplies separate additional air...
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6779994 |
Apparatus for cooling and calibrating an extruded plastic profile
An apparatus for cooling and calibrating and extruded plastic profile ( 2 ) is described, with a cooling tank ( 4 ) which receives a cooling liquid ( 12 ) and can be charged with a pressure below...
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6769684 |
Air turning bar
An air turning bar for a take-off device for plastic films has a hollow cylindrical body having a depression in the region of the bar around which the film is wrapped. The remaining region of the...
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6705851 |
Extrusion molding apparatus for a thin tube
An extrusion molding apparatus includes a molding die ( 3 ) through which a plasticized and kneaded raw material ( 1 ), composed of a synthetic resin material having high heat-resistance and...
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6689464 |
Method and device for producing bisphenol a prills and bisphenol a prills produced according to this method
A method for producing bisphenol A in prill form is disclosed. Molten bisphenol is top-fed into a prilling tower via a plate containing a plurality of nozzles. A gas coolant guided through a...
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6676396 |
Resin guiding device for inflation molding apparatus
Provided is a resin guiding device for an inflation molding apparatus, which guides a molten resin extruded and blown into a tubular resin from an inflation molding die, to a pair of take-up rolls,...
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6652630 |
Device for degassing melts
A device for degassing melts, especially plastic melts, which has a melt nozzle ( 1 ) with an inlet connection ( 11 ) for connecting to a melt supply, a melt outlet opening and a vacuum chamber (...
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6638044 |
Apparatus for forming composite pellets for the controlled release of the active ingredient in the treatment of humans or animals
An apparatus for forming composite pellets containing active ingredients encapsulated in encapsulating material for the controlled release of the active ingredient in the treatment of humans,...
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6619942 |
Tubular film blowing head
A tubular film blowing head is provided with one outer and one inner nozzle ring between which a ring chamber is formed extending in a conical or parabolic manner towards the circular nozzle gap...
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6619941 |
Cast film cooling device
An improved air cooling device for the production of cast film is shown. The device is intended to increase production rates for film without reducing the level of film gauge control. The devices...
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6565343 |
Apparatus for producing plastic film
Apparatus for producing plastic film, of the type in which molten plastic is extruded through an annular die to form a tubular bubble which is expanded by air blown into the bubble, and a...
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6551534 |
Method and arrangement for cooling an extruded hollow product
The invention relates to a method and an arrangement for cooling an extruded hollow product. According to the invention, the extruder ( 1 ) is provided with means for sucking air through the pipe (...
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6533564 |
Apparatus for forming adhesive cartridges
An apparatus for continuously forming thermoplastic adhesive cartridges. A molten thermoplastic adhesive supply provides a supply of molten adhesive to a pump downstream from the molten...
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6485283 |
Blow molding die for producing blown film
Provided is a blown molding die to obtain a film having excellent properties and good appearance in blown film forming of a thermoplastic resin manifesting anisotropy in molten state. The blow...
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6485282 |
Device for the extrusion of plastic profiles
A device for the extrusion of plastic profiles with an extruder for the melting and delivery of a plastic material and with an extrusion die for defining the profile geometry, wherein a profile...
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6447278 |
Apparatus for processing blown tube films
Methods and apparatus for the processing of a continuous blown film undergoing collapsing in which a plurality of differential elements of the film follow respective streamline paths which are...
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6423261 |
Blown film extrusion apparatus and method with improved collapsing frame
A blown film extrusion apparatus and method is provided including a tube position transducer transmits interrogating pulses to the extruded film tube and produces a position signal corresponding to...
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6398534 |
Take-off apparatus for blown, plastic sheets
A take-off apparatus for plastic blown sheet that is collapsed has a deflecting roller rotatably mounted for transporting the blown sheet and an air turning bar for receiving the blown sheet from...
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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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6296464 |
Calibrating device with at least one calibrating die
The invention relates to a calibrating device with at least one calibrating die (24), which has die faces (66) against which an extruded object fed therethrough is applied, in particular a section...
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6293778 |
Automatically balancing a blower in a blown film extrusion line
The present invention is directed to an apparatus for startup of extruded film tubes. A controller member is utilized to provide control signals to a supply blower which supplies air to the...
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6273699 |
Device for manufacturing plastic film
A device for improving the possibilities of process control in blown film manufacture is described. In blown film manufacture, the plastic material is extruded in the form of a tube from a slot die...
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6254368 |
Plastic molding machine
Apparatus for producing plastic film by extrusion includes a plastic extrusion machine having an extrusion screw, a motor for turning the screw, a die connected to the screw barrel outlet, a...
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6241502 |
Take-off apparatus for plastic tubular sheets
Take-off equipment for tubular sheets are provided for plastic film produced by an extruder with a stationary blowing head. Collapsing boards collapse the tubular sheet with expanded circular cross...
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6123536 |
Plant for the production of plastic tubular films with a biaxial orientation and an in-line stabilization phase
A plant for the production of plastic tubular films with a biaxial orientation, includes one or more extruders to feed the molten polymer to an extrusion head; an annular drawplate for extruding a...
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6068462 |
Apparatus for continuously forming a blown film
An apparatus is used in the continuous extrusion of blown films which includes a die suitable for use in forming a blown film bubble, and one or more primary gas outlets for use in stretching and...
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6066288 |
Method for cooling and if necessary calibrating articles of plastic
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6059554 |
Adjustable bubble guide or cage
A bubble guide unit according to the present invention comprises two concentric frames, at least one of which rotates relative to the other, through which the film bubble passes. At least four...
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6013158 |
Apparatus for converting coal to hydrocarbons
An apparatus for forming liquid hydrocarbons from solid coal. The coal is pulverized to provide a particulate coal feed, which is then extruded to provide a hollow tube of compressed coal supported...
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5945048 |
Process and device for extruding polymer melts to form hollow chamber sections
In a process for extruding polymer melts (25) to form hollow chamber sections (21) by pressing the polymer melt through a shaping tool (24) with an internal shaping mandrel (26) and by subsequently...
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5942256 |
Bubble stabilizer and sizing cage with wear strips
An external stabilizer employed in a plastic film blowing apparatus incorporates one or more extruded members that carry a low-friction plastic wear cover. A tubular die, fed with a supply of...
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5912022 |
Device to lay flat a film tube
A device to lay flat a film tube drawn from an inflated film bubble generated in a film blowing system includes lay-flat platens which delimit the film bubble and which are placed against the...
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5912021 |
Collapsing frame for moving tubes of plastic material
A collapsing frame for collapsing a moving tube of plastic material from a circular cross section to a flattened form has a pair of frame members positionable on diametrically opposite sides of the...
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5891480 |
Apparatus for the continuous production of biaxially-stretched blown plastic foil
A foil-blowing apparatus and start-up method utilizes switchable roller pairs and a seal in an upstream primary tube stretch to subdivide the interior of the primary tube into an upper chamber and...
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5866172 |
Ozone treatment for composite paperboard/ polymer package
In the manufacture of composite paperboard/polymer packages, the adhesion between the polymer component and paperboard component can be enhanced by treating the polymer film with a surface...
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5861117 |
Process and apparatus for cooling an extrudate
A process for extruding a mixture of thermoplastic and ground whole tire waste, in which the mixture is extruded through a die to form an extrudate, with the extrudate subsequently cooled by...
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