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Class 264/173.16 - Melt co-extrusion (e.g., two layers, etc.)


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein a layered
No. of patents: 282
Last issue date: 04/17/2012


1                
NumberTitleIssue Date
8158044Method of forming composite articles
A method for forming a composite article includes injecting first and second compositions into a die head at different points so as to produce a partially mixed composition that is discharged from the die head. The second composition contains less filler material th...
04/17/2012
7998386Multilayered polymeric structure
A multilayered polymeric structure having at least two polymeric layers is provided, each layer being a mixture of a polymeric composition with carbon fibrils. The multilayer polymeric structure may include an electrically conductive material between the first and s...
08/16/2011
7968027Method for producing plastic rods
The invention relates to a method for extruding round rods from transparent plastics such as for example polymethylmethacrylate (PMMA), polycarbonate (PC) or polyethylene (PET) and to a method for producing said round rods. ...
06/28/2011
7897081Method of extruding articles
Methods for coextruding a predetermined initial melt stream through at least one profiled die having a nonlinear inlet opening and an outlet opening. The die insert is positioned so as to cause redistribution of at least a portion of the melt stream. The nonlinear m...
03/01/2011
7763196Catheter
The catheter provided in accordance with aspects of the present invention includes an elongate tube having a proximal tube portion and a distal tube portion formed by stretching the distal portion of the elongate tube. The catheter is made throughout from an identic...
07/27/2010
7491356Extrusion method forming an enhanced property metal polymer composite
The invention relates to an extrusion method and to an extrudable metal polymer composite having increased density, improved viscoelastic properties, malleability and ductility and thermoplastic extrusion or injection molding properties. ...
02/17/2009
7476353Method for producing an ice cream machine
Method for the production of sealing elements on plastics articles. Said method includes the step of producing a film of silicone rubber on the sealing surface of the article. Advantageously, this film is formed by co-moulding or co-extrusion with the plastics artic...
01/13/2009
7442332Method and apparatus for uniformly stretching thermoplastic film and products produced thereby
Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of...
10/28/2008
7422711Method and apparatus for forming an extrusion
A method of forming an extrusion comprises passing a first, plastics material (12) through a first channel (104) in a die, passing a second, plastics material (14) through a second channel (112) in the die, and passing a third, plastics m...
09/09/2008
7413624Method for making multilayer articles having special visual effects
The present invention relates to a method for making a multilayer article, wherein said multilayer article comprises: (i) a first layer comprising an acrylic resin; (ii) at least one translucent second layer comprising (a) an acrylic resin, optionally further compri...
08/19/2008
7390450Process for preparing a fire resistant polycarbonate composition
A process for producing a fire resistant polycarbonate composition comprises preparing an aqueous solution of a flame retardant salt; and compounding the aqueous solution of the flame retardant salt with a polycarbonate composition to form the fire resistant polycar...
06/24/2008
7390558Aliphatic polyester film and packaging material
An aliphatic polyester film on which an inorganic gas-barrier film is formed by deposition to improve the gas barrier properties of the aliphatic polyester wherein the adhesion between the aliphatic polyester film and the deposited gas-barrier film has been improved...
06/24/2008
7387837Thermoplastic polyurethane composition and process for producing the same
The present invention provides a thermoplastic polyurethane composition which comprises an ethylene-vinyl alcohol copolymer and/or a polyamide, and a thermoplastic polyurethane, in which the retention of melt tension thereof, when kept in a molten state at 220° C. ...
06/17/2008
7381357Apparatus and method for co-extruding multi color plastics
The present invention is the apparatus and method for producing a plastic sheet having a pattern produced in a layer therein. The plastic sheet is a single layer sheet or a multi-layer sheet. The pattern is produced by mixing two or more plastic extrudants together ...
06/03/2008
7378145Hot-embossable polyester film
The present invention relates to a transparent, hot-embossable, biaxially oriented polyester film having a base layer (B), an amorphous outer layer (A) with a coating on this outer layer (A), and a crystalline outer layer (c). The invention further relates to the us...
05/27/2008
7368161Color stable pigmented polymeric films
Color-stable, pigmented optical bodies comprising a single or multiple layer core having at least one layer of a thermoplastic polymer material. The thermoplastic polymer material has dispersed within it a particulate pigment. The optical bodies generally possess hi...
05/06/2008
7341684Composite synthetic resin material forming method and apparatus
A composite synthetic resin material forming apparatus comprises an outer channel having an outer outlet, an inner channel having an inner outlet opening into the outer channel, outer synthetic resin supply means for flowing an outer synthetic resin through the oute...
03/11/2008
7329453White, heatsealable, peelable polyester film, process for its production and its use
Coextruded, biaxially oriented polyester films which have a white base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 ...
02/12/2008
7323239Protective films
Multilayer protective films that adhere well to many different surfaces and can be removed without leaving residues are provided. The films consist of a polyolefin backing layer(s) and an adhering layer consisting of an ethylene unsaturated ester copolymer layer con...
01/29/2008
7320773Biodegradable laminate sheet and molded item from biodegradable laminate sheet
A biodegradable laminate sheet having as its object to provide a formed body superior in heat resistance, shock resistance, transparency and formability, and having non-stretched polylactic acid-family resin layer of which the crystallinity is 20% or less, and a lay...
01/22/2008
7312949Base deck with overmolded elastomeric and rigid structural components
A base deck for a data storage device is preferably formed from a stamped, or fine blanked metallic platform portion, which supports an over-mold portion. The over-mold portion is a combination of elastomeric components and rigid structural components. In addition t...
12/25/2007
7291389Article having temperature-dependent shape
Articles, particularly fibers, whose shape is dependent on temperature. The articles have a first component composed of a sharply-melting crystalline polymer and an overlapping second component. As the crystalline polymer is cooled through its melting range, the vol...
11/06/2007
7285322Multilayer, transparent film made from polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) for producing packaging composites with UV protection
The invention relates to an at least two-layer polyester film with a total thickness of from 5 to 200 μm which comprises, alongside polyethylene terephthalate, from 2 to 20% by weight—based on the weight of the entire film—of polyethylene naphthalate (PEN), whe...
10/23/2007
7273653Resin film and manufacturing method for the same, and resin laminated metal sheet using said resin film and manufacturing method for the same
A resin film of a two-layer-construction comprising: (a) a resin layer R1 including a non-stretched resin film which contains a thermoplastic polyester resin containing 3 to 30 percent by weight in a weight fraction in the entire resin of a granular resin with a gra...
09/25/2007
7249415Method of forming members for sealing or baffling
There is disclosed a member for sealing, baffling and/or reinforcing components of an automotive vehicle. The assembly generally includes a carrier, an expandable material and at least one fastener. ...
07/31/2007
7238317Method of continuously producing a twin-wall pipe with a ventilation zone between a socket and an adjacent elevation
A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is ma...
07/03/2007
7229581Process for producing a thermoplastic film using plastic bottle recyclate
Invention relates to a process for producing a single-layer or multilayer film by extrusion or coextrusion, biaxial orientation, and heat setting based on crystallizable thermoplastics whose principal constituent is a crystallizable thermoplastic having a standard v...
06/12/2007
7229665Process of forming multilayered structures
The present invention provides for a method of producing an integral multilayered porous membrane by simultaneously co-casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath ...
06/12/2007
7229696Multilayer, transparent film made from PET and PEN with at least one functional outer layer for producing composite packaging with UV resistance
The invention relates to an at least two-layer polyester film with a total thickness of from about 5 to about 200 μm which comprises polyethylene terephthalate and from about 2 to about 20% by weight—based on the weight of the entire film—of polyethylene naphth...
06/12/2007
7211306Peelable polyester film with self-venting, process for its production and its use
Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 to 98% by weight of polyester and ...
05/01/2007
7202600Dimensionally stable electroluminescent lamp without substrate
An electroluminescent panel includes a release layer, a first insulating layer on the release layer, a plurality of lamp layers on the first insulating layer, and a second insulating layer overlying the lamp layers. In accordance with one aspect of the invention, th...
04/10/2007
7172718Method of manufacturing a rubber sheet for a power transmission belt and a power transmission belt incorporating the rubber sheet
A method of manufacturing a power transmission belt having a body with a length and a cushion rubber layer in which at least one carrying member is embedded so as to extend lengthwise of the body. The method includes the steps of: extrusion molding (a) a first rubbe...
02/06/2007
7160584Method for manufacturing ceramic glow plugs
A method for manufacturing a ceramic glow pin which is formed of more than two layers arranged especially coaxially to the axis of the glow pin and symmetrically. The layers of the layer structure are manufactured by co-extrusion. ...
01/09/2007
7157135Co-extruded high refractive index coated embossable film
An embossable film for creating holograms and diffraction gratings and methods of producing the embossable films are provided. The embossable film includes a base layer and a co-extruded embossable layer that is coated with a transparent high refractive index (HRI) ...
01/02/2007
7153458Method of manufacturing a molded multilayer article
Molten polymers are forced into T dies combined to form a multiple T die, the molten polymers are extruded through the T dies in monolayer. The monolayers extruded through the T dies are superposed and laminated outside the multiple T die while the polymers are in a...
12/26/2006
7150848Method and apparatus for regular division of molten extrusion flow
A blown film die divides a flow of material into two flows with higher and lower flow portions and recombines the flow by combining higher flow portions with lower flow portions. The flow can be divided in circumferential channels between an annular feed ring and an...
12/19/2006
7144542Label film with improved adhesion
The invention relates to the use of a biaxially oriented polyolefin film as a label film. The inventive film consists of a base layer and at least one cover layer. Said cover layer contains as the main component a copolymer or terpolymer consisting of one alkene and...
12/05/2006
7144615Coextruded, hot-sealable and peelable polyester film, process for its production and its use
This invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable with respect to at least CPET. The heatsealable and peelable top layer (A) consists of ...
12/05/2006
7141293Coextruded, hot-sealable and peelable polyester film having high peeling resistance, process for its production and its use
This invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable from at least APET, the heatsealable and peelable top layer (A) consisting of ...
11/28/2006
7135135Superabsorbent water sensitive multilayer construction
A multilayer construction that includes a first layer that includes water sensitive thermoplastic polymer and a second layer disposed on the first layer, the second layer including superabsorbent polymer. ...
11/14/2006
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