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Class 264/209.5 - Stretching extruded material


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the extruded material is reshaped by stretching
No. of patents: 184
Last issue date: 06/01/2010


1          
NumberTitleIssue Date
7727442Medical device tubing with discrete orientation regions
Medical device polymeric tubing segments suitable for forming catheter shafts or as balloon parisons are formed with discrete regions having different orientation relative to each other. Wall thickness may also be varied of the length of the segment. ...
06/01/2010
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
7410602High flow rate dialysis catheters and related methods
High flow rate catheters, and related methods, are useful in dialysis and other procedures. A catheter according to the invention comprises a hub and a generally elongated conduit. The conduit has a substantially continuous and smooth wall. The conduit also defines ...
08/12/2008
7338681Process to prepare a premium formulated fried egg
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
03/04/2008
7288279Formulated fried egg product
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
10/30/2007
7241469Formulation and process to prepare a pre-formed filing unit
The present process relates to a formulation for a food product and preparation of a pre-formed filling unit for the provision of a consumable food product containing eggs, which may be refrigerated and/or frozen for future heating within a microwave oven for consum...
07/10/2007
7182870Hollow fiber membrane and method of producing the same
A method of producing a hollow fiber membrane includes discharging a polyvinylidene fluoride solution comprising a polyvinylidene fluoride resin and a poor solvent at a temperature above a phase separation temperature into a cooling bath at a temperature below the p...
02/27/2007
7182998Heat-shrinkable film
Disclosed is a cross-linked heat shrinkable film comprising an ethylene polymer resin which has a gel fraction of 5-40%. Furthermore, this film contains a glycerin fatty acid ester surface active agent in an amount of 2.0-8.0% by weight based on the total weight of ...
02/27/2007
7166671Grafted cyclodextrin
Thermoplastic polymer compositions, films, continues, closures, laminates can comprise a modified vinyl polymer said modified polymer having a moiety comprising a cyclodextrin compound. The cyclodextrin compound, locked into the polymer structure, can absorb impurit...
01/23/2007
7114942Apparatus for producing synthetic resin film
A calibrating basket for a film blowing tube is provided with roller bearings to prevent stripe formation on the film and pinching of the film between the rollers. ...
10/03/2006
7063885Biaxially oriented and heat-set multilayer thermoplastic film for packaging
A multi-layer, thermoplastic film bi-axially oriented at a stretching ratio ≧ to about 3.0:1 in the machine direction and at a stretching ratio ≧ about 6.0:1 in the transverse direction, which film comprises a layer a) comprising at least 50 wt. % of a crystalli...
06/20/2006
6956088Polyethylene films with improved physical properties
Metallocene catalyzed polyethylenes are found to have improved physical properties, improved processability and improved balance of properties. Surprisingly, there is a direct relationship between MD shrinkage, and MD tear. Additionally, MD tear is greater than TD t...
10/18/2005
6946094Adjustable sizing tube
There is provided a plastic extrusion sizing tube having a cylinder with a split along its length to allow for radial expansion and reduction of the sizing tube. The cylinder has holes to allow an extrusion within the cylinder to be drawn to the cylinder by a vacuum...
09/20/2005
6919112Polyamide-based sausage skin which can be filled manually
The invention concerns a biaxially stretched and thermoset tubular seamless single- or multi-layered foodstuff skin wherein the layer, or, a multi-layered skin wherein at least one of the layers, contains a block copolymer with “hard” aliphatic polyamide blocks ...
07/19/2005
6905743Dimensionally stable balloons
A medical balloon composed of a micro-composite material which provides for radial expansion of a balloon to a predetermined extent, but which has minimal longitudinal growing during balloon inflation. The micro-composite material includes a fibril component, a matr...
06/14/2005
6887541Insulated packaging material and pouch formed thereof
An insulated packaging material includes a thermal insulating layer, which may a fiberfill batt. The batt is laminated to at least one facing layer of film, paper or fabric. The packaging material can be used as a container, such as a pouch. A food-contacting polyme...
05/03/2005
6878276Methods of making stretched filtering membranes and modules
A method for stretching a hollow fibre while making a stretched filtering membrane from a precursor involves wrapping the hollow fibre around a structure and modifying the structure such that at least portions of the hollow fibre are forced to elongated. For example...
04/12/2005
6824734Method of producing latent elastic, cross-direction-oriented films
A blown film process for producing low gauge, latent elastic films with high cross-direction orientation includes preferentially regulating the temperature gradient of the film along the expansion length. The regulation of temperature along the bubble profile allows...
11/30/2004
6764753Smokable films comprising a polyamide and a copolyester elastomer
Smokable films, in particular tubular films, comprising i) an aliphatic polyamide and ii) a block copolyetherester elastomer are provided. A process for manufacturing these films is also provided. The films of the invention show excellent water vapor permeability at...
07/20/2004
6676396Resin 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, wherein the resin guiding device comprises a pair of guid...
01/13/2004
6676886Pipe belling process
An improved pipe belling process is shown which features a mandrel having a specially designed backup or forming collar. The backup collar has an exposed lip portion which forms a complimentary angle with the outer sloped surface of the gasket which it ab...
01/13/2004
6663805Process for making hollow fiber mixed matrix membranes
Isopycnic or asymmetric mixed matrix hollow fiber membranes for gas separation can be made by a continuous spinning process. Mixed matrix membranes are characterized by a continuous phase of selectively gas permeable polymer in which are uniformly dispers...
12/16/2003
6632925Biodegradable plant protein composites and related methods
The present invention includes biodegradable plant protein composites....
10/14/2003
6599451Rotating extrusion die with spray nozzle
An extrusion die for extruding biodegradable material, the extrusion die comprising: a mandrel; an outer member positioned near the mandrel; an extrusion orifice between the mandrel and the outer member; a member in communication with at least one definin...
07/29/2003
6592713Method of producing a nonwoven material
Method for producing a nonwoven material comprising at least one layer of continuous filaments, such as spunbond- or meltblown fibers. A first web of continuous filaments (19) are laid on a wire (14) or other permeable support member having a resilient ex...
07/15/2003
6579484Co-extruded taper shaft
An apparatus and method for providing a co-extruded, tapered multi-layer shaft. A co-extruded, tapered multi-layer shaft may be fabricated by selecting a first material for the inner layer of the shaft and a second material for the outer layer of the shaf...
06/17/2003
6565796Method and apparatus for use in manufacture of cellulose casing
Disclosed is a method of sizing nonderivatized extruded cellulosic tubes by the use of a mandrel structure that includes a hollow sizing portion having openings which gather gas bubbles that may evolve at the interface between the extruded tube and the si...
05/20/2003
6555243Thermoplastic multilayer composites
Thermoplastic multilayer composite, particularly in the form of a multilayer hose, a multilayer pipe or a multilayer container, containing at least one intermediate layer made of a molding compound on the basis of ethylene/vinyl alcohol copolymers between...
04/29/2003
6521168Method and equipment for the dual orientation of multiple-layer thermoplastic materials
A process for orienting and drawing multiple-layer thermoplastic materials, in particular of a tubular type, wherein a tube exiting from a heating tunnel is brought up to an orienting temperature of a first material having the highest orienting temperatur...
02/18/2003
6444161Mandrel structure for use in manufacture of cellulose food casing
Disclosed is a mandrel structure for extruding a tube composed of a non derivatized cellulose. The mandrel includes a hollow sizing portion having openings which gather gas bubbles that may evolve at the interface between the extruded tube and the sizing ...
09/03/2002
6395208Method of making an expandable fluoropolymer device
A method of making a radially expandable device having a body constructed of a generally inelastic, expanded fluoropolymer material. The body is deployable upon application of a radial expansion force from a reduced diameter, collapsed configuration to an...
05/28/2002
6383265Polymer blend membranes with improved mechanical properties
Improved polymer blends, and polymer blend membranes having improved mechanical properties are provided by alteration of the critical solution temperature of the polymer blend spinning solution through the incorporation of organic or inorganic complexing ...
05/07/2002
6352785Shrinkable film
The present invention provides a shrinkable film characterized by being a laminate film having at least one layer formed of a gas barrier resin composition satisfying the following expressions (1) and (2) and by having an average shrinking rate in its lon...
03/05/2002
6352750Seamless tubular electrically-semiconductive aromatic polymide film and process for producing the same
The present invention provides an seamless tubular electrically-semiconductive film excellent in heat resistance, chemical resistance and mechanical property with excellent electrical resistance properties being applied thereto. The seamless tubular ...
03/05/2002
6328925Laminate catheter balloons with additive burst strength and methods for preparation of same
A laminate balloon comprising at least two layers of separately oriented thermoplastic polymer material, which are coextensive over the body of the balloon. The two layers may be made of different polymer materials, including an underlying layer made of a...
12/11/2001
6325959Use of cross-linked polyolefins material in pressure pipes
Use of at least partly cross-linked polyolefin plastic, which is oriented biaxially, as material for pressure pipes, is described. The pressure pipe is produced by extrusion with subsequent axial and peripheral orientation of the pipe, the pipe being at l...
12/04/2001
6296464Calibrating 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 having several cavities, a sealing device (60, 62) being p...
10/02/2001
6296804Biaxial stretching of plastic tubes
A continuous process and apparatus for producing oriented plastic tube comprising the steps of extrusion, temperature conditioning, diametrical expansion and cooling, characterized by the step of inducing axial draw of the tube between first and second ha...
10/02/2001
6251490Compositions of high density polyethylene and poly(ethylene naphthalate)
The invention relates to a polymer blend comprising high density polyethylene (HDPE), poly(ethylene naphthalate) (PEN), and a non-functionalised ethylene copolymer. This polymer blend is useful in extrusion blow moulding to make articles such as bottles....
06/26/2001
6224803Method of forming a thin walled member by extrusion and medical device produced thereby
A method of forming a thin-walled polymeric tubular member for an intralumenal device, and the member produced thereby. The thin-walled tubular member extruded using the method of the invention is suitable for use a sleeve for a catheter shaft or balloon....
05/01/2001
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