Class / Patent application number | Description | Number of patent applications / Date published |
264448000 | Of indefinite length article | 10 |
20080258350 | Method of Producing a Flexible Pipe and a Flexible Pipe - The invention relates to a method of producing a flexible pipe comprising a metal carcass and an internal sealing sheath extruded onto the carcass, said method comprising providing a metal carcass; heating an application section of said carcass, preferably using induction heating, to an application section temperature of at least 150° C.; extruding a non-cross-linked polyethylene material comprising a peroxide having an activation temperature above 150° C. onto said application section of said carcass; cross-linking the extruded polyethylene in a cross-linking zone by raising its temperature to at least the activation temperature of said peroxide by exposing the extruded polymer material to electromagnetic waves, with a wavelength of between 0.5 μm to 0.5 m, preferably infrared radiation; and cooling said cross-linked polyethylene material to obtain the internal sealing sheath. In a preferred embodiment the method comprises heating the application section to an application section temperature of between 30 and 5° C. below the activation temperature of the peroxide. Preferred peroxides include butylcumyl peroxide, dicumyl peroxide, 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3,3,3,5,7,7-Pentamethyl-1,2,4-trioxepane, hydroperoxide, 2,5-dimethyl hexane 2,5-di-t-butyl peroxide, bis(t-butylperoxy isopropyl)benzene, t-butyl cumyl peroxide, di-t-butyl peroxide, 2,5-dimethyl hexine-3 2,5-di-t-butyl peroxide and butylhydroperoxide. A foil may be applied onto the metal carcass prior to the step of heating the metal carcass, the polyethylene material being extruded onto said foil. | 10-23-2008 |
20090001635 | Method for the production of low density oriented polymer composite with durable surface - A process and material therefrom is described where a material comprised of a continuous orientable polymer matrix with one or more discontinuous or continuous second phases is stretched in the solid state using more than one device to apply force to the unoriented material to form a material that consists of a continuous oriented polymer matrix with one or more other phases. At least one of the phases releases from the oriented polymer matrix forming voids during the orientation process, thereby reducing the density to less than that of the original unoriented mixture. One or more of the phases may stay bonded to the continuous oriented polymer phase, acting as a reinforcing agent and forming no voids. Methods for forming such a material allowing for the control of the final shape and affecting the final density independent of the composition are also disclosed. | 01-01-2009 |
20100252961 | OPTICAL FILM REPLICATION ON LOW THERMAL DIFFUSIVITY TOOLING WITH CONFORMAL COATING - A system and method for extrusion replication of microstructures to make microreplicated optical films. The system includes press roll and a replicating member. The replicating member includes a low thermal diffusivity material having a microreplicated outer surface or an organic material having a microreplicated outer surface. An inorganic conformal coating is disposed over the patterned outer surface of the organic or low thermal diffusivity material. | 10-07-2010 |
20100308509 | METHODS OF FORMING MOLDS AND METHODS OF FORMING ARTICLES USING SAID MOLDS - A method of forming a working mold including: placing a substrate ( | 12-09-2010 |
20100308510 | DEVICE FOR CURING PLASTIC LINERS USED FOR REHABILITATING DUCTS | 12-09-2010 |
20110278770 | MOLD, MOLD MANUFACTURING METHOD AND METHOD FOR MANUFACTURING ANTI-REFLECTION FILM USING THE MOLD - A mold of at least one embodiment of the present invention includes: a base; a conductive layer provided on the base; and an anodized film provided on the conductive layer, the anodized film having an inverted motheye structure in its surface, the inverted motheye structure having a plurality of recessed portions whose two-dimensional size viewed in a direction normal to the surface is not less than 10 nm and less than 500 nm, wherein the base, the conductive layer, and the anodized film are capable of transmitting ultraviolet light. | 11-17-2011 |
20120200008 | PREPARATION AND USE OF NANOWRINKLES - Provided are methods of preparing a textured surface on a thermoplastic material that include treating the material with a plasma and subsequently shrinking the substrate to induce formation of textures. | 08-09-2012 |
20130228954 | APPARATUS AND METHOD FOR CORONA TREATING FILM FOR SELF OPENING BAGS - An apparatus for corona treating film includes a source of film material and at least one transport roller that is rotatably mounted in a frame. The transport roller has a longitudinal axis and has a width greater than the film. First and second treater heads have first and second leading edges, first and second trailing edges and are mounted parallel to the longitudinal axis. The second leading edge is parallel to and spaced from the first trailing edge by a second predetermined distance. The film is transported over the roller and a high voltage electric arc is provided to the first and second treater heads. The roller is grounded and provides a return path for the electric current provided to the first and second treater heads, thereby corona treating the front side or back side of the film if a second roller and third and fourth treater heads are used. | 09-05-2013 |
20140070464 | QUICK-DRYING PRINT AND ENVIRONMENTAL-FRIENDLY BIAXIALLY ORIENTATED POLYPROPYLENE SYNTHETIC PAPER - A quick-drying print and environmental-friendly biaxially orientated polypropylene synthetic paper is produced from a polypropylene resin composition comprising a high crystalline polypropylene resin, calcium carbonate composite particles, titanium dioxide composite particles, antistatic agents, UV absorbers and anti-blocking agent, which are fed into one twin-screw primary extruder and two twin-screw secondary extruders respectively, convergently flowed through the same T-die, co-extruded into a three-layer structure substrate film, after cooling and setting, this film is first longitudinally orientated, then laterally orientated; thereafter the three-layer film is high-frequency corona treated and winded up to gain the film having thickness less than 250 μm. At the end the three-layer film is coated a thickness below 10 μm with a water-based paper-like surface processing agent containing acrylic resin, calcium carbonate, clay, titanium dioxide, water, antistatic agent via a gravure coating roller to acquire an improved synthetic paper having a better printability. | 03-13-2014 |
20150299908 | METHOD FOR PRODUCTION OF CARBON FIBER BUNDLE - The purpose of the present invention is to provide a method whereby deposits which have occurred on the surfaces of a fiber bundle during flameproofing treatment of a carbon fiber-precursor acrylic fiber bundle can be efficiently removed prior to carbonization treatment at high temperature. The method for production of carbon fiber bundle includes a step in which, after a carbon fiber-precursor acrylic fiber bundle has been heated and undergone flameproofing treatment, the fiber bundle is subjected to a plasma treatment involving contact with a plasma gas in gas phase, or to an ultraviolet treatment involving irradiation with ultraviolet in gas phase; and a step in which the fiber bundle having undergone the plasma treatment or the ultraviolet treatment is subjected to a carbonization treatment. | 10-22-2015 |