| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 264435000 | Molecular aligning or molecular orientating (e.g., poling, etc.) | 7 |
| 20080203619 | Non-Porous Polyvinylidene Fluoride (Pvdf) Films in the Beta Phase and Processing Method Thereof - The invention reports a new film of the beta phase of polyvinylidene fluoride (PVDF) and its processing for the elimination of porosity, using a compression force along the thickness direction of the sample at a high temperature. The join action of the compression force and the temperature eliminates the porosity of the PVDF beta phase, improving its mechanical (Young's modulus, yielding and breaking stress, yielding and breaking strain), electrical (dielectric constant, electric rupture) and electromechanical properties (electromechanical coupling, piezoelectric coefficients) and, therefore, the use of the material in technological applications. Non-porous material, 95 to 100% in beta phase and with crystallinity degrees higher than 50%, is obtained | 08-28-2008 |
| 20090152772 | METHOD OF FABRICATING ELECTRO-OPTICAL DEVICES WITH POLYMER-STABILIZED LIQUID CRYSTAL MOLECULES - In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components. | 06-18-2009 |
| 20090184445 | METHOD FOR FORMING AND ALIGNING CHEMICALLY MEDIATED DISPERSION OF MAGNETIC NANOPARTICLES IN A POLYMER - A method. The method includes providing Au-doped Co nanoparticles. The nanoparticles include a combination of non-ferromagnetic nanoparticles and weakly ferromagnetic nanoparticles. The nanoparticles each have an exterior surface. The surfaces of the nanoparticles are functionalized with 7-(5-uracil-ylcarbamoyl)heptanoic acid. A polymer is provided having a general formula including a uracil group. A dispersion is formed by agitating a solution of the nanoparticles. The solution is spin cast into a film. The film is heated under vacuum at a first temperature, T | 07-23-2009 |
| 20100096781 | Method Of Fabricating An Implantable Medical Device Using Gel Extrusion And Charge Induced Orientation - The invention provides a method of manufacturing a polymeric implantable medical device using gel extrusion of high molecular weight polymers or charge-induced orientation to avoid heat degradation of the polymer that might occur during conventional heat extrusion. | 04-22-2010 |
| 20100123274 | METHOD FOR SYNTHESIZING CONDUCTIVE COMPOSITE - Provided are an apparatus and method for synthesizing a conductive composite with enhanced electrical conductivity. The apparatus includes: an injection-molding machine which injection-molds pellets created by mixing carbon nanotubes (CNTs) with polymers; and an electric field generator which applies an electric field to the pellets that are melted while the melted pellets are injection-molded and thus rearranges the CNTs included in a composite into which the melted pellets are injection-molded. | 05-20-2010 |
| 20160016369 | Novel Additive Manufacturing-Based Electric Poling Process of PVDF Polymer for Piezoelectric Device Applications - Methods for forming a piezoelectric device are provided. The method can comprise: electrically poling and printing the piezoelectric device from a polymeric filament simultaneously. The polymeric filament can comprise a polyvinylidene fluoride polymer (e.g., a β phase polyvinylidene fluoride polymer, such as formed by simultaneously stretching and electric poling an electrically inactive α phase polyvinylidene fluoride polymer). | 01-21-2016 |
| 20160375611 | DEVICE FOR FABRICATING ION EXCHANGE MEMBRANE AND METHOD OF FABRICATING THE ION EXCHANGE MEMBRANE - The present disclosure relates to a technique for improving the ionic conductivity by introducing an electric field concept to a process for preparing an ion exchange membrane and deflecting an ion channel within an ion exchange membrane in one direction, and specifically to a device for fabricating an ion exchange membrane and a method therefor in a roll-to-roll manner and a casting manner with a deflected ion channel which can improve the ionic conductivity of the ion exchange membrane by reducing a travelling distance of the ions in the deflected ion channels. | 12-29-2016 |
