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Pneumatic Shoe Lacing Apparatus

This invention provides a pneumatic shoe lacing apparatus for the pneumatic lacing of shoe.

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Class 264/182 - Polyacrylonitrile containing extrudant


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the material being shaped is polyacrylonitrile
No. of patents: 168
Last issue date: 02/26/2008


1          
NumberTitleIssue Date
7336875Enhancement of optical and mechanical properties in a polymeric optical element by annealing under a compressed gas
A method for treating a polymeric optical element which includes the steps of mounting a polymeric optical element into a chamber, injecting a compressed gas as an annealing medium into the chamber and annealing the polymeric optical element and removing the anneali...
02/26/2008
7273501Fiber structure having high whiteness and high moisture-absorbing and releasing property, and method for production thereof
A highly white and highly moisture absorptive and desorptive fibrous structure where a moisture absorptive and desorptive synthetic fiber having a saturated index of moisture absorption of 10% by weight or more at 20° C. and 65% RH is blended, characterised in that...
09/25/2007
7081139Antimicrobial polyester-containing articles and process for their preparation
This invention relates to antimicrobial polyester-containing articles and methodology for the preparation of antimicrobial polyester-containing articles utilizing chitosan and chitosan-metal complexes as the antimicrobial agent. ...
07/25/2006
7064149Process for preparing polymer latex resin powder
The present invention relates to a process for preparing polymer latex resin powder, and particularly to a process for preparing polymer latex resin powder including coagulating polymer latex and aging the polymer latex. The process further includes introducing an e...
06/20/2006
6946412Flame-resistant, high visibility, anti-static fabric and apparel formed therefrom
A fabric for use in safety apparel comprising a first set of yarns comprising modacrylic fibers, and a second set of yarns comprising anti-static fibers. The fabric meets the Federal Test Method Standard 191A, Method 5931 for electrostatic decay, and the Electrostat...
09/20/2005
6821599Porous acrylic fiber and fabric comprising the same, and method of producing the same
Porous acrylic fibers produced by a method comprising subjecting a spinning dope containing 0.3 to 20 parts by weight of poly(vinyl acetate) relative to 100 parts of an acrylic copolymer to a wet spinning to give fibers, crimping and cutting the fibers, subjecting t...
11/23/2004
6770364Artificial hair and method for production thereof
The present invention provides synthetic hair comprising fiber of 30 to 100 decitex, comprising an acrylic copolymer obtained by copolymerizing acrylonitrile, vinylidene chloride and a vinyl monomer containing a sulfonic acid group and a process for preparing the sy...
08/03/2004
6740722Low density acrylic fiber
An acrylic fiber having cotton-like properties with modified, internal void structure and optical characteristics, the acrylic fiber comprising a BYK Gardner Luster (BYL) reflectance measurement of less than about 44. ...
05/25/2004
6641915Acrylonitrile-based fiber bundle for carbon fiber precursor and method for preparation thereof
There is disclosed an acrylonitrile fiber bundle for a carbon fiber precursor with a total denier of 30,000 or more consisting of an acrylonitrile polymer comprising 95 wt % or more of an acrylonitrile unit, wherein the surface of filaments composing of t...
11/04/2003
6630558Ion-sensitive hard water dispersible polymers and applications therefor
The present invention is directed to ion-sensitive, hard water dispersible polymers. The present invention is also directed to a method of making ion-sensitive, hard water dispersible polymers and their applicability as binder compositions. The present in...
10/07/2003
6524508Process of making chitosan-containing acrylic fibers
The present invention is directed to chitosan-containing acrylic fibers having a total chitosan content of 0.05 to 2% by weight and an extractable chitosan content of not less than 0.03% by weight to less than the total chitosan content. The antimicrobial...
02/25/2003
6482344Superabsorbent polymer fibers having improved absorption characteristics
A method for providing improved absorbency against pressure characteristics to non-surface crosslinked superabsorbent polymer fibers....
11/19/2002
6054214Process for the preparation of carbon fiber
A process for preparing high strength carbon fiber from PAN-fiber wherein the time of the oxidation step is reduced from 30-90 minutes to about 8-15 minutes and product prepared therefrom....
04/25/2000
5989683Wireless polymeric twist tie
A wireless polymeric twist tie that includes a wing portion and at least one rib portion. The polymeric twist tie is formed from a non-metallic polymeric composition that includes an alloy of polycarbonate and acrylonitrile butadiene styrene or an alloy o...
11/23/1999
5853879High moisture-absorbing and releasing fibers and processes for their production
High moisture-absorbing and releasing fibers exhibiting excellent moisture-absorbing properties and moisture-releasing properties, capable of withstanding repeated use, having both flame resistance and antibacterial properties, and further having excellen...
12/29/1998
5840828Polyimide fibers
A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3,4'-ODA and ODPA, and endcapped with phthalic anhydride to ...
11/24/1998
5804108Process for the preparation of carbon fiber
A process for preparing high strength carbon fiber from PAN-fiber wherein the time of the oxidation step is reduced from 30-90 minutes to about 8-15 minutes and product prepared therefrom....
09/08/1998
5766757Basic gas absorptive fiber and production thereof
Disclosed herein is a fiber capable of basic gas absorption and easy regeneration. Disclosed also herein is a process for producing said fiber. The basic gas absorptive fiber is an acrylic fiber characterized by a specific amount of nitrogen which is incr...
06/16/1998
5746959Manufacture of acrylic fiber
Acrylic fiber with persistent antifungal properties can be prepared by extruding a dope which comprises an acrylic polymer in solution and an antifungal agent through a die into a coagulating bath. The antifungal agent is preferably a neutral organic comp...
05/05/1998
5674438Process for preparation of metal carbide fibers
This invention relates to a process for forming metal or non-metal carbide fiber from the corresponding metal or non-metal....
10/07/1997
5616292Process of making PAN fibers
A process for preparing PAN fibers under precipitation polymerization conditions in an aqueous solvent system....
04/01/1997
5521275Method for improving catalyst efficiency during polycarbonate redistribution
The efficiency of a redistribution catalyst during polycarbonate redistribution is improved by employing an extruder screw design that provides a melt seal between the extruder throat and the vacuum port. A melt seal exists when the free volume within the...
05/28/1996
5496510Acrylonitrile filament process
A process for making acrylic fibers in which control of polymer composition and spin bath composition provide improved product properties....
03/05/1996
5364581Process of making polyacrylonitrile fibers
A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmo...
11/15/1994
5324466Method for the production of multi-layered conjugated acrylic fibers
A multi-layered conjugated acrylic fiber comprises different acrylic polymers which are conjugated along the fiber axis in layers. On the average the fiber contains more than two layers of acrylic polymers. The shrinkage forming ratio in boiling water of ...
06/28/1994
5304590Acrylonitrile polymer compositions and articles and methods for their preparation
Process of mixing a fugitive plasticizer, e.g., ethylene carbonate, with moist particulate polyacrylonitrile then removing the water enabling adjustment of the melt viscosity for extrusion of the polyacrylonitrile into film, fiber, pellets and shaped arti...
04/19/1994
5299926Spinning apparatus having a tubular elastomeric flow control valve body
A novel spinning apparatus is provided with a tubular coagulating liquid flow control valve body made of an elastomeric material and whose inner diameter is changeable according to external pressure. The valve body has a simple structure and is easy to re...
04/05/1994
5269984Process of making graphite fiber
A graphite fiber having an elastic modulus E of 340-680 GPa, a microvoid radius of not larger than 20 Å and a crystal size Lc (Å) satisfying the following formula: Lc3 ࣘ0.918×103 E-3×105 is valuable ...
12/14/1993
5252396Reversibly color-changing shaped material and process for producing the same
The present invention relates to a shaped material consisting of a layer having open microvoids (hereinafter referred to as light-scattering layer) and a layer having a hue different from that of the light-scattering layer (hereinafter referred to as colo...
10/12/1993
5232647Process of making bicomponent acrylic fibers having reversible crimp
An acrylic fiber tow which includes 1) monocomponent filaments of each of two acrylonitrile polymers differing in hydrophilic properties, 2) bicomponent filaments of both of said polymers having one interface between polymers components and 3) bicomponent...
08/03/1993
5130065Method of preparing polyacrylonitrile hollow threads with asymmetric pore structure
The process for production of polyacrylonitrile hollow threads with a stable, asymmetric pore structure by a dry-wet-spinning process with glycerine-based core liquids, definite draw and after treatment conditions and a treatment with alcohols and drying....
07/14/1992
5078926Rapid stabilization process for carbon fiber precursors
Carbon fiber precursors are stabilized regarding their mechanical properties by conducting the stabilization procedure in at least two steps, the first at a temperature at which the maximum plasticity of the polymer is attained while stretching the fiber ...
01/07/1992
4997610Process for producing filaments and fibers of acrylic polymers which contain carboxyl groups
A fiber or filament of a swellable polymer of high tensile strength is made by spinning a polymeric raw material which is produced by agitating a suspension of solid particles of an acrylonitrile polymer in dilute sulfuric acid having an acid concentratio...
03/05/1991
4935180Formation of melt-spun acrylic fibers possessing a highly uniform internal structure which are particularly suited for thermal conversion to quality carbon fibers
An acrylic multifilamentary material possessing an internal structure which is particularly suited for thermal conversion to high strength carbon fibers is formed via a specifically defined combination of processing conditions. The acrylic polymer while i...
06/19/1990
4933128Formation of melt-spun acrylic fibers which are well suited for thermal conversion to high strength carbon fibers
An acrylic multifilamentary material possessing an internal structure which is well suited for thermal conversion to high strength carbon fibers is formed via a specifically defined combination of processing conditions. The acrylic polymer while in substa...
06/12/1990
4931233Method for adding additives during manufacture of carbon fiber
In a method of manufacturing carbon fiber with less uniformity of physical strength in the longitudinal direction, an oil additive in a volatile medium is applied to an organic fiber after it is removed from a container and while the volatile medium has n...
06/05/1990
4925604Process for preparing a carbon fiber of high strength
A carbon fiber of high strength is disclosed, each filament of which is substantially circular in its cross-section but which has circumferential ruggedness which extends in parallel to an axis of the filament to form pleats. The ruggedness has a depth of...
05/15/1990
4921656Formation of melt-spun acrylic fibers which are particularly suited for thermal conversion to high strength carbon fibers
An acrylic multifilamentary material possessing an internal structure which is particularly suited for thermal conversion to high strength carbon fibers is formed via a specifically defined combination of processing conditions. The acrylic polymer while i...
05/01/1990
4917836Process for producing high-strength, high-modulus carbon fibers
A process of producing carbon fibers, which comprises oxidizing polyacrylonitrile filaments having a tensile strength at 240° C. of 0.3 g/d or higher and a tensile modulus at 240° C. of 2.0 g/d or higher in an oxidizing atmosphere under a high tension o...
04/17/1990
4913869Wet-spinning processes for producing acrylic filaments
An improvement in the conventional wet-spinning process for producing acrylic fibers increases the spinning performance and/or productivity of the process and comprises imparting a plurality of stretches to the fibers as they are being dried on the heat r...
04/03/1990
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