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5076872 |
Process for preparing a flexible composite material
A flexible composite material comprising a core composed of a blend of a thermoplastic resin fiber and a reinforcing fiber, and a flexible sleeve formed of a thermoplastic resin and surrounding the...
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5073322 |
Processing of ethylene terephthalate/hexahydroterephthalate copolymer filaments
Improved fibers of a copolymer of ethylene terephthalate/hexahydroterephthalate containing a high proportion of hexahydroterephthalate are obtained by a 2-stage drawing process, involving...
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5069844 |
Improvements in process for preparing crystalline spin-oriented filaments
Polyester crystalline filaments that have been prepared by spin-orientation, and filaments prepared by drawing such filaments without texturing, in yarns thereof, and in fabrics and garments...
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5069846 |
Process for preparing drawn filament yarns
Drawn polyester multi-filament yarns, preferably prepared by a coupled process of spin-drawing, and of fabrics and garments thereof, are prepared by an improved process involving treatment of...
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5069847 |
Improvements in process for preparing spun yarns
Solid polyester fiber in spun yarns, and fabrics and garments and precursor staple fiber and filamentary tow, are prepared by an improved process involving treatment of freshly-extruded undrawn...
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5069845 |
Improvements in process for preparing spin-oriented feed yarns
Polyester filaments in spin-oriented feed yarns, such as DTFY, and in draw-textured and other drawn yarns therefrom, and in fabrics and garments of such yarns, are prepared by an improved process...
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5065493 |
Method of making a spherical sealing body used for exhaust pipe joint
A spherical sealing body is to be inserted in a space defined by three of an end edge of an exhaust pipe on upstream side, a flange fixed on an outer periphery of the exhaust pipe on upstream side,...
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5066439 |
Method of making polyester fibers
A continuous spin-draw process of making dimensionally stable polyester fiber having high strength and low shrinkage by melt spinning polyethylene terephthalate and drawing comprising multiple...
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5064599 |
Process for producing an antibacterial fiber article
Zeolite particles retaining antibacterial metal ion, such as Ag, Cu or Zn ion, at ion-exchangeable sites of the zeolite are included in a low-melting component of conjugated fibers which comprise a...
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5061422 |
Process for preparing polyester feed yarns
A process for preparing spin-oriented feed yarns that may be processed into flat yarns by draw-warping, involving the use of lower withdrawal speeds than customary hitherto for preparing...
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5055242 |
Process for continuously forming reinforced articles
A process for continuously forming reinforced articles (24) which includes producing a reinforcing material (13) having a plurality of superimposed layers (1-6), stitching together said layers...
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5053482 |
Novel polyesters and their use in compostable products such as disposable diapers
The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers from the nonwovens. The products are degradable under...
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5049331 |
Method of manufacturing a thread-reinforced, extruded rubber body
A method of producing a thread-reinforced, extruded rubber body by a shear head wherein the threads are continuously supplied, embedded in a rubber mixture which is in a continuous forward motion...
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5047189 |
Process for preparing partially dissolvable and splittable conjugated microfiber
There is provided a process for preparing a partially-dissolvable and splittable conjugated microfiber with a cross-section having a matrix comprising orange-wedge shaped islands slightly connected...
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5045260 |
Polyester yarn and method for its manufacture
The method for producing dimensionally stable, low-shrinkage, chemically modified industrial polyester yarns by melt spinning at speeds of 1000 to 4000 m/min. utilizes a copolymer containing at...
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5045271 |
Process for the production of irregular non-woven material sheets
In the production of irregular non-woven material sheets of synthetic filaments, the warp from spinnerets is drawn off by means of a draw-off device and then deposited on a substrate. To avoid...
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5034174 |
Texturing yarns
Modifying a polyester with special chain-brancher residues in carefully controlled amounts to provide a draw-texturing feed yarn that can be draw-textured at a speed of 1,000 mpm without excessive...
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5032333 |
One-line interlacing of bulked continuous filament yarns and low-melting binder fibers
This invention relates to a process for combining a low melting binder fiber with a continuous filament base yarn to form a composite yarn having good bulk and a high level of interlace. More...
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5028369 |
Process for the production of hydrophilic acrylic fibers
A process for the discontinuous or (preferably) continuous production of dry spun hydrophilic acrylic fibers and threads with a core/sheath structure which have improved color fastness properties,...
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5028375 |
Process for making a spun-filament fleece
The process for making a spun-filament fleece from at least two stretched thermoplastic monofilaments made of a thermoplastic material includes feeding thermoplastic material to at least two...
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5019309 |
Method of and apparatus for producing a pipe of thermoplastic synthetic resin
Monofilament threads which are wound around a thermoplastic synethetic resin core tube to form one or more reinforcement coils are generated as they are wrapped around the core tube by liquid...
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5018271 |
Method of making a composite blade with divergent root
A composite gas turbine engine blade is made by braiding a plurality of fibers to form a preform having an airfoil precursor portion and an integral root precursor portion. A plurality of fiber...
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5013502 |
Continuous production of acrylonitrile filaments and fibers from spinning material of low residual solvent content
A process for the production of crimped filaments and fibers of acrylonitrile polymers of copolymers containing at least 40% by weight acrylonitrile units, by dry spinning from highly polar...
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5006291 |
Method for making fiber reinforced plastic tubing
Fiber reinforced plastic tubing is formed by an innermost layer of braided strands that include longitudinal stud fill strands within the braid, a second layer of longitudinal strands, and a third...
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4983240 |
Method of making a flanged braided bearing
A flanged bearing includes a layer of woven braid which is continuous throughout a sleeve and a flange portions thereof, with at least one braid strand substantially parallel to a bearing axis. The...
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4981639 |
Method of moulding racquets with stringing holes
A method of moulding racquets to define stringing holes in the moulded frame. The method includes forming at least one approximately ladder-shaped member having two side pieces interconnected by...
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4966740 |
Texturing polyester yarns
Modifying a polyester with tetraethyl silicate or like oxysilicon chain-brancher to provide a draw-texturing feed yarn that can be draw-textured at a speed of at least 500 mpm without excessive...
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4954194 |
Method for making an airspring and sleeve
A method for making an Airspring and Sleeve that each have a chamber portion and rolling lobe portion reinforced with successive layers of embedded cord by winding cord in one layer at opposite...
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4950436 |
Process for producing hoses of high impermeability to gas and vapor
A process is disclosed for producing a composite hose constructed with a core tube, a reinforcement layer and a cover laminated one on another, the core being made up of a resin inner wall and a...
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4948549 |
Process for producing soot filter elements
A process is described for producing filter elements which contain a cross-wound yarn as the filter material, wherein twisted yarn of fine individual fibers is roughened to enhance its filtering...
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4946722 |
Protective fabric sleeves
Tubular sleeves formed from elongated flat sheets, particularly braided sheets are disclosed. Sheet material comprised of interlaced monofilaments is cold worked by the process of drawing the...
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4944821 |
Adhesive treatment for nylon cords
Nylon cords having a yarn strength of not less than 12 g/d are subjected to a stretch heating treatment under specified conditions before the dipping and then dipped in a dipping solution having a...
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4923660 |
Process for the production of mouldings and films from thermotropic polymers
By processing fibres and filaments of thermotropic polymers from anisotropic melt, films and mouldings having predeterminable properties are formed.
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4919872 |
Process for metering color concentrates to thermoplastic polymer melts
Continuous strands of color concentrate are metered into the feed zone of a screw-melter polymer extruder where they are cut into pellets by the shearing action of the flights of a rotating screw...
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4917740 |
Braiding machine
A braiding machine for use in applying a tubular shaped braid around a product includes a closed loop induction heater for applying heat to the product as it is being fed through the braiding...
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4913861 |
Process for preparing carbon fiber-reinforced composite materials
A carbon fiber-reinforced composite material is prepared by molding a textile weave-reinforced composite material using a plain textile weave obtained by weaving multifilament yarns comprising a...
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4904431 |
Process for manufacturing catheters
A method of manufacturing soft tip catheters having inner rigid polymer layers and outer soft, pliable polymer layers. The method involves first extruding the rigid polymer at varying extrusion...
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4902462 |
Method of producing polypropylene yarns
Continuous polypropylene multifilament yarns are made by melt spinning and stretching in an integral process; a sufficient number of filaments for forming at least 8 continuous filament yarns each...
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4902453 |
Process for the preparation of a fiber-reinforced carbon composite
A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the...
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4902461 |
Method for heating an advancing yarn
A heating tube is adapted for use in a melt spinning process for producing a highly oriented yarn wherein an elongated heating tube having provision for adjusting the effective heating length in...
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4900496 |
Process for making a tire cord using yarns containing a dip penetration regulator
A polyamide yarn having on the surface of the polyamide yarn a hydrophobic organic ester dip penetration regulator having a melting point greater than 27° C. and convertible by conventional means...
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4900495 |
Process for producing anti-static yarns
A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of...
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4898634 |
Method for providing centrifugal fiber spinning coupled with pressure extrusion
A method wherein there is provided a source of fiber forming material, with said fiber forming material being pumped into a die having a plurality of spinnerets about its periphery. The die is...
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4883552 |
Pultrusion process and apparatus
An apparatus and process are provided for continuously consolidating and shaping a plurality of continuous prepreg structures into a unitary formed product structure. Each prepreg structure...
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4882025 |
PVC woven diaphragm for the electrolysis of hydrochloric acid
Heat-set woven diaphragms based on polyvinyl chloride, well adapted for the electrolysis of hydrochloric acid, comprise: (a) a combination of warp threads and weft threads woven into a cloth...
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4882101 |
Method of producing a reinforced rubber hose by using a plastic mandrel
A method of producing a reinforced rubber hose, including the steps of continuously extruding a long plastic mandrel from a plastic material and feeding the extruded plastic mandrel, extruding an...
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4880440 |
Hollow fiber multimembrane cells and permeators
Two or more different permeable membranes capable of separating different components of a fluid mixture are used to farbicate hollow fiber multicomponent cells and permeator modules.
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4877572 |
Process for the production of PBT carpet yarn
A process for the production of high-quality carpet yarn from PBT having an intrinsic viscosity of 0.9 to 1.2 comprising an integrated spinning-draw texturing process, employing a transport speed...
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4874563 |
Process for preparing tows from composite fiber blends
A continuous, substantially uniform tow useful in forming composite molded articles is prepared by forming a continuous tow of continuous carbon fibers, forming a continuous tow of thermoplastic...
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4871491 |
Process for preparing composite articles from composite fiber blends
A composite article is prepared by forming a continuous tow of continuous carbon fibers, forming a continuous tow of thermoplastic polymer fibers, uniformly and continuously spreading the...
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