Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7615183 | Polylactic acid blown film and method of manufacturing same The invention provides polylactic acid (PLA) films substantially free of plasticizers and methods of manufacturing same by blown film process are provided. PLA films are environmentally degradable and have applications in, at least, packaging and labeling. ... | 11/10/2009 |
| 7416802 | Electrode-supported solid state electrochemical cell A process for manufacturing a solid oxide fuel cell comprises, in one embodiment according to the invention: forming a plastic mass comprising a mixture of an electrolyte substance and an electrochemically active substance; extruding the plastic mass through a die t... | 08/26/2008 |
| 7303609 | Manufacture of polyimide-hollow fibres A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt % N-methylpyrollidone and 0-40 wt % ethanol, (ii) providing a bore fluid, (iii) generati... | 12/04/2007 |
| 7294238 | Non-woven through air dryer and transfer fabrics for tissue making One embodiment of the present invention is an endless non-woven tissue making fabric having a three-dimensional texture suitable for use as a fabric for producing three-dimensional fibrous webs. The endless non-woven tissue making fabric comprises a plurality of sub... | 11/13/2007 |
| 7264764 | Method of manufacturing branching pipe The manufacturing method of the invention manufactures a fuel filler pipe (branching pipe), where a breather pipe is branched off from a filler pipe main body. The manufacturing method extrudes a first extruded tubular member and a second extruded tubular member, co... | 09/04/2007 |
| 7213630 | Method and apparatus for producing an RF cured hose, and the hose so produced An apparatus for making a hose including a weaving machine and a liner feeder for forming the hose by weaving a jacket about a liner as the liner is being fed into the weaving machine, where the liner is provided with an adhesive layer on an outer surface, the adhes... | 05/08/2007 |
| 7201819 | Process for producing a sealed water-soluble package Process for producing a sealed water-soluble package of improved aesthetic appearance by treating at least part of the outer surfaces of the sealed package with a plasticizer composition and applying heat thereto, a package obtainable thereby and a specified use of ... | 04/10/2007 |
| 6955780 | Multi-wall cylindrical structure, method of making such structure, and apparatus for carrying out such method An elongated composite tube made up of an inner tube 42 and an outer tube 44 (see FIG. 3) with a plurality of elongated helical ribs disposed between the inner tube and the outer tube in a supporting relationship to both. A slinky like toy made ... | 10/18/2005 |
| 6943231 | Transparent polyamide molding materials having improved transparency, resistance to chemicals and high permanent fatigue strength Transparent polyamide molding materials are provided which are characterized in that they have a melting enthalpy between 0 and 12 J/g and the polyamides are constituted of 100 mole-% of a diamine mixture having 10-70 mole-% of PACM [bis-(4-amino-cyclohexyl)-... | 09/13/2005 |
| 6911522 | Filled epsilon-caprolactone based polymer compositions, method for preparing same and articles based on said compositions Compositions based on ε-caprolactone polymer, comprising at least one ε-caprolactone polymer and calcium carbonate. Process for preparing these compositions, which are used for manufacturing articles, in particular films, preferably obtained by extrusion blow-moul... | 06/28/2005 |
| 6905642 | Method and continuous production line of plastic tubes with bi-axial drawing, and resulting plastic tube The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel (12); gauging and cooling while... | 06/14/2005 |
| 6878334 | Condensing heat exchanger formed of norbornene polymer A condensing heat exchanger is formed of norbornene polymer, preferably a norbornene homopolymer or copolymer. A plurality of norbornene polymer pellets are melted and extruded to form a first tube. The tube is then blow molded into a mold. A second extruded tube is... | 04/12/2005 |
| 6821591 | Seamless tubular film and methods and devices for producing a seamless tubular film materials The present invention provides a seamless tubular film on a cellulose base, being produced by extruding an aqueous cellulose N-methyl-morpholine-N-oxide spinning solution. The maximum degree of roughness Rmax is from greater than 0.1 μm to 0.5 μm and an... | 11/23/2004 |
| 6805824 | Process for manufacturing a porous drainage medium In a process for making a porous drainage medium composed of entangled strands of thermoplastic resin, subsequent to forming a tubular preform, the preform is formed with necked-down sections at intervals along the length thereof before proceeding to a cooling tank.... | 10/19/2004 |
| 6752955 | Method of manufacturing a boot seal In a process and an apparatus for making a plastic sleeve (56), plastic is fed into an extruder die (216). The plastic is extruded from the extruder die (216) as a molten plastic stream into a mold cavity (272) having an inner wall (27... | 06/22/2004 |
| 6733718 | Method of manufacturing a tubular member made of synthetic material, and a tube and a sheath manufactured by the method The invention relates to a method of manufacturing a tubular member made of synthetic material, the method being of the type in which the tubular member is extruded. In the method, during extrusion of the tubular member, the extruded synthetic material is subjected ... | 05/11/2004 |
| 6699549 | Heat-shrinkable multilayer film A polyester-surfaced heat-shrinkable multilayer film exhibiting good printability and adaptability to various automatic packaging processes is provided, including an outer surface layer (a) comprising a polyester resin, an intermediate layer (b) comprisin... | 03/02/2004 |
| 6685872 | Method for preparing multilayer films A method for coextruding a multilayer tubular film having a barrier material comprises (a) extruding a core extrudate of barrier material with a core extruder; (b) providing a preencapsulation die adjacent the outlet of the core extruder, the prencapsulat... | 02/03/2004 |
| 6682689 | Flexible plastic article and method of manufacturing the same A process for making a plastic tube having a variable diameter comprises the following steps. A plastic is obtained. The plastic is fed into an extruder die (216). The plastic is extruded as a tubular molten plastic stream (262) into a mold cavity (218) h... | 01/27/2004 |
| 6455618 | Thermoplastic elastomer molding compositions with improved processability Described is a thermoplastic molding composition comprising: a) 0.05 to 1.5 wt. %, with respect to the entire molding composition, of a fatty acid amide ester wax; b) 0.5 to 10 wt. %, with respect to the entire molding composition, of a silica selected fr... | 09/24/2002 |
| 6436319 | Method of preparing hollow fiber-type separation membrane from high density polyethylene A method for preparing a hollow fiber-type separation membrane from high density polyethylene is provided, which includes the steps of: melt-spinning a mixture of a high density polyethylene and a diluting agent to produce a phase-separated undrawn hollow... | 08/20/2002 |
| 6348563 | p-hydroxybenzoic esters, plasticizer containing the same, polyamide resin composition and molded articles The present invention provides a p-hydroxybenzoic ester represented by the formula (1) ##STR1## wherein R1 represents a C6 -C10 straight-chain or branched-chain alkyl group, A1 represents a C2 -C... | 02/19/2002 |
| 6319457 | Method for extruding tubular film A method and apparatus is disclosed for lacing an extruded tube of a non derivatized cellulose through an S-wrap to collapse the tube to a flat width. The lacing to form the S-wrap is accomplished without slowing the extrusion speed. At the start of the e... | 11/20/2001 |
| 6312823 | Compostable multilayer structures, methods for manufacture and articles prepared therefrom A compostable multilayer film includes a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing layer covering the second surface of the core lay... | 11/06/2001 |
| 6238545 | Composite anode, electrolyte pipe section, and method of making and forming a pipeline, and applying cathodic protection to the pipeline An anode is embedded in an electrolyte layer applied to the surface of a structure such as a pipe section to provide an ionic conductive path between the anode and structure to supply cathodic protection to the structure, where the natural environment may... | 05/29/2001 |
| 6228315 | Torsion cords and method for molding the same A new and improved apparatus and method for producing torsion cords comprising the steps of: (1) casting a torsion cord of a rubber composition, the mold having a high pressure resistant cylindrical wall and opposite closed ends, (2) efficiently curing th... | 05/08/2001 |
| 6214283 | Method for treating an extruded plastic section and extrusion installation therefor Method for treating an extruded plastic section having a hollow space and installation suitable for carrying out such a treatment. The installation includes an extruder which has a core for forming the hollow space in the section and, at a distance downst... | 04/10/2001 |
| 6196988 | Method of forming a flexible applicator for inserting an article into a mammalian body cavity The present invention relates to a flexible applicator for inserting an article into a mammalian body cavity. The applicator has an elongate, hollow, structural member suitable for containing the insertable article, and an elongate expulsion member which ... | 03/06/2001 |
| 6106763 | Process for producing cellulosic mouldings Process for producing cellulosic moldings such as fibers, foils, casings and beads from cellulose, wherein (a) the initial cellulose is hydrothermally treated with water in a water/cellulose ratio on a weight basis of at least 1 at a temperature in the ra... | 08/22/2000 |
| 6017474 | Highly permeable polyethersulfone hollow fiber membranes for gas separation Formulation polymer dopes and development of processes for preparing asymmetric polyethersulfone hollow fiber membranes for gas separation are provided. Polyethersulfone hollow fiber membranes which exhibit improved gas permeability and selectivity have b... | 01/25/2000 |
| 6015516 | Ultrathin high-performance hollow fiber membranes A process for forming ultrathin dense-layer asymmetric hollow fiber membranes with a dense layer of less than 500 Å from a binary solution system comprising a polymer and a solvent. In this process, the spinning polymeric solution has a high viscosity an... | 01/18/2000 |
| 6001288 | Process for producing a hollow fiber membrane having a hydrophobic coating A process for producing a hollow fiber membrane, a hollow fiber membrane, and a dialyzer of hollow fiber membrane type is provided. The hollow fiber membrane is highly biocompatible, and the production process is quite simple and inexpensive. In the proce... | 12/14/1999 |
| 5980795 | Method of producing hollow fiber polymer membranes In a method of producing hollow fiber membranes, wherein a molten polymer charged with a gas under pressure is provided in an extrusion apparatus, the polymer melt including the gas under pressure is extruded from the extrusion apparatus through a hollow ... | 11/09/1999 |
| 5942326 | Shrink film with good ink adhesion A film, having two major surfaces, includes an outer layer including a copolymer of ethylene and a C3 to C10 alpha olefin, wherein at least one surface has a silicone coating of between 0.1 and 1.2 milligrams per square feet. Multila... | 08/24/1999 |
| 5925307 | Method for forming oriented plastic pipe A method and apparatus for forming an oriented plastic pipe from a plastic tubular material includes a first heated liquid bath for heating the plastic material to the glass transition temperature and a cooled liquid bath downstream of the heated liquid b... | 07/20/1999 |
| 5910274 | Method of preparing membranes from blends of polymers Improved anisotropic fluid separation membranes are prepared from blends of polymers with surface energy differences. The membranes are formulated by processes wherein low surface energy polymer with desirable fluid separation and permeation characteristi... | 06/08/1999 |
| 5871679 | Method of producing hot water soluble garments and like fabrics A method of disposing of garments after use. The garments, linens, drapes, towels and other useful articles are provided as woven, non-woven, knitted or otherwise formed fabric of thermoplastic polyvinyl alcohol polymer fiber, the fiber being water solubl... | 02/16/1999 |
| 5853884 | Method for producing unsupported fiber bundles for HME and other filtration applications A method for forming a hollow fiber bundle unit for insertion into an assisted breathing device comprising spinning a hollow fiber or hollow fibers, collecting multiple fibers into a bundle, filling the walls of the hollow fibers within the hollow fiber b... | 12/29/1998 |
| 5849401 | Compostable multilayer structures, methods for manufacture, and articles prepared therefrom A compostable multilayer film includes a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing core layer comprises a lactic acid residue-contai... | 12/15/1998 |
| 5811506 | Extrudable thermoplastic elastomeric urea-extended polyurethane An extrudable urea-extended thermoplastic polyurethane elastomer is formed from at least one aliphatic diisocyanate, at least one polyester glycol or polyether glycol, and at least one diamine curing agent. At least one second diamine curing agent and/or ... | 09/22/1998 |
