Patent application number | Description | Published |
20090104386 | ORIENTED NANOFIBERS EMBEDDED IN A POLYMER MATRIX - A method of forming a composite of embedded nanofibers in a polymer matrix is disclosed. The method includes incorporating nanofibers in a plastic matrix forming agglomerates, and uniformly distributing the nanofibers by exposing the agglomerates to hydrodynamic stresses. The hydrodynamic said stresses force the agglomerates to break apart. In combination or additionally elongational flow is used to achieve small diameters and alignment. A nanofiber reinforced polymer composite system is disclosed. The system includes a plurality of nanofibers that are embedded in polymer matrices in micron size fibers. A method for producing nanotube continuous fibers is disclosed. Nanofibers are fibrils with diameters 100 nm, multiwall nanotubes, single wall nanotubes and their various functionalized and derivatized forms. The method includes mixing a nanofiber in a polymer; and inducing an orientation of the nanofibers that enables the nanofibers to be used to enhance mechanical, thermal and electrical properties. Orientation is induced by high shear mixing and elongational flow, singly or in combination. The polymer may be removed from said nanofibers, leaving micron size fibers of aligned nanofibers. | 04-23-2009 |
20090232920 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 09-17-2009 |
20090269429 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 10-29-2009 |
20090280207 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 11-12-2009 |
20090280325 | METHODS AND APPARATUSES FOR MAKING SUPERFINE FIBERS - Apparatuses and methods for the production of superfine fibers. | 11-12-2009 |
20110229806 | PHASE MASK AND METHOD OF FABRICATION - A method of fabricating a two-layer phase mask comprises subjecting a photoresist material to two overlapping laser beams that create light and dark fringes in the overlapping beam regions. The photoresist can comprise a liquid crystal and a photo-sensitive material, including, for example, a photo-sensitive monomer and/or polymer. The two laser beams can be first directed towards one side of the photoresist. In the areas subjected to lighter fringes, the polymer molecules can link together and force the liquid crystal into the areas subjected to the darker fringes. This can leave an alternating pattern of linear strips of polymer-rich and liquid crystal-rich regions. The exposure time can be limited so that the strips are formed only partially through the thickness of the photoresist. The photoresist can be then rotated 90 degrees and the overlapping laser beams directed towards the opposite side of the photoresist. Alternating strips of polymer-rich and liquid crystal-rich regions can be formed that extend partially through the photoresist. These strips can be arranged orthogonally to the strips formed on the opposite side of the photoresist. The material in liquid crystal-rich regions can be washed out when the photoresist is developed. A two-layer, integrated phase mask can therefore be produced. Exemplary methods eliminate the need for complicated alignment techniques. | 09-22-2011 |
20130001814 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 01-03-2013 |
20140154493 | APPARATUSES AND METHODS FOR THE PRODUCTION OF FIBERS - A method of producing fibers, includes placing a composition that includes one or more fluoropolymers in the body of a fiber producing device and rotating the device at a speed sufficient to eject material from the fiber producing device to form fluoropolymer microfibers and/or nanofibers. | 06-05-2014 |
20150061180 | SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF - Apparatuses and methods for the production of superfine fibers. | 03-05-2015 |