United States of America As Represented by the Secretary of the Air Force

Syscom Advanced Materials, Inc.

University of Dayton

Jar-Wha Lee

Chyi-Shan Wang

D Mark Husband

Fred E Arnold, Jr

Thuy D Dang

Narayanan Venkatasubramanian

Barry L Farmer

Soo-Young Park

Richard A Vaia

Conductive metal and metallized fiber hybrid wires are disclosed, wherein such wires have a central member and a peripheral member and comprise at least one conductive metallized fiber. The peripheral member comprises (i) at least one conductive metal filament; and (ii) optionally, at least one conductive metallized fiber. The central member comprises (i) at least one non-metallized fiber; (ii) at least one conductive metallized fiber; (iii) at least one conductive metal filament; or (iv) combinations thereof.

Metal and metallized fiber hybrid wire

A method and apparatus for treating the surfaces of individual filaments in multifilament yarn. The method includes the steps of immersing the yarn into a liquid treatment solution and coating all exposed surface areas of each individual filament with the treatment solution, disrupting the orientation of the individual filaments and coating all newly exposed surface areas of each individual filament with the treatment solution, and repeating the previous steps until a predetermined treatment level is achieved. A filament orientation disruption assembly may include at least one roller having a roller profile such that for a given transverse section of the roller, a roller surface perimeter has a plurality of points located a plurality of distinct distances from a central axis of the roller, i.e., a non-cylindrical roller. The method is particularly effective in plating highly anisotropic uniaxially oriented polymer fibers, such as PBO.

Method and apparatus for the treatment of individual filaments of a multifilament yarn

A benzobisazole polymer having repeating units of the formula:wherein Q isand wherein Z is &#x2014;O&#x2014;, &#x2014;S&#x2014; or &#x2014;NH&#x2014;. A new method for preparing 1,5-naphthalenedicarboxylic acid from 1,5-diaminonaphthalene under relatively mild conditions in good yields is also described.

Rigid-rod benzobisazole polymers incorporating naphthalene-1,5-diyl structure units

A method for processing thermally intractable rigid-chain polymers into shaped structural articles is provided. The method includes dissolving a rigid-chain polymer in sulfuric acid at a concentration and temperature sufficient to form a nematic liquid crystalline solution which is then formed into a shaped article and cooled to a solid. The solution undergoes a phase transformation upon cooling from a liquid crystalline phase to a solid phase containing crystal solvates. The method allows rigid-chain polymers to be formed into fibers, bulk structural components, fiber reinforced composites and other structural materials without undergoing significant shrinkage or deformation.

Method for processing rigid-chain polymers into structural materials

A method is provided for forming a highly conductive metal-containing polymer fiber or sheet in which a polymer is immersed in a solution containing a metal precursor selected from organic or inorganic salts of copper, silver, aluminum, gold, iron and nickel. The metal precursor is then reduced by chemical, electrochemical, or thermal means such that conductive metal is incorporated into the polymer.

Method of making conductive metal-containing polymer fibers and sheets

A method for preparing optical quality, thin films of polymers and co-polymers, as well as blends of such polymers or co-polymers with flexible polymers and co-polymers which comprises

Solid state coagulation of optical quality polymer thin films

A method for preparing optical quality, thin films of rigid-rod polymers and co-polymers, as well as blends of such polymers or co-polymers with flexible coil-like aromatic heterocyclic polymers and co-polymers which comprises

Growing community of inventors

Columbus, OH, United States of America

Jar-Wha Lee