University of South Florida

Eastman-kodak Company

University of Florida Research Foundation Inc

Julie P Harmon

LaNetra Michelle Clayton

Derek D Chapman

Norma Arcelia Alcantar

Louis J Rossi

William T Gruenbaum

Luther C Roberts

Nathan Brad Crane

Justin Troy Nussbaum

John P D'Angelo

Roger Bass

Patricia Anne O Muisener

Garrett Michael Craft

Patricia Muisener

Sintering methods comprising (a) providing a layer of powder material on a platform; (b) projecting incident light from a source onto a surface area of the layer of powder material, wherein the incident light is projected for a sufficient time to densify the layer of powder material and form a layer of densified material; (c) optionally cooling the layer of densified material to a sufficient temperature to solidify or vitrify the layer of densified material to form a layer of sintered material; and (d) repeating steps (a) to (c) to form a sintered article in a layer-wise fashion are disclosed. The incident light may cause complete melting of the powder material or heat the powder material above its glass transition temperature. In general, the incident light is projected simultaneously and for a time span substantially the same as formation of the layer of densified material.

System and method for improving mechanical properties of polymer powder bed fusion processes

A mixture of a lacquer and carbon nanotubes that form a cross-linked network to convert excitation energy into non-chemistry inducing energy in a cured lacquer.

Ionizing radiation resistant coatings

Thermoplastic elastomers containing carbon nanotubes that is an autonomous, intrinsic, and reversible self healing polymer that requires no intervention to induce self healing, that requires no sequestered healing agents are added to the matrix, and is capable of multiple healing events.

Self-healing polycarbonate containing polyurethane nanotube composite

Polymer composites directed to single wall carbon nanotubes (SWNT) dispersed within poly(methyl methacrylate) (PMMA) and their methods of synthesis. Composites of the present invention are also formulated as films and spun coat onto desired substrates. Advantageously, both the composites and films of the present invention exhibit resistance to radiation.

Carbon nanotube/polymer composites resistant to ionizing radiation

Disclosed are chemically active surfaces for the detection of nitroaromatic, nitramine, and nitrate ester compounds, the primary constituents of explosive devices. Transparent conductive composites (TCCs) combine with gold nanoparticles in a conducting polymer matrix to create a conductive, flexible, and electrochromic material. Hybrid, nanostructured surfaces constructed from TCCs are decorated with conjugated conductive oligomer wires. Selective binding of the target to the oligomer alters the electron charge mobility in the TCC, affecting the redox state. The binding event is identified by measuring the conductivity of the TCC and/or through color changes of the TCC. Conjugated oligomers that are functionalized with thiol groups at one end and nitro-derivative receptors at the other provide the bases for selectivity and sensing. The thiol group anchors the oligomer to the metal sites on the TCC surface and the receptor starts the charge transfer mechanism when targeted with the appropriate molecule.

Transparent conducting composites (TTCs) for creating chemically active surfaces

Polymer/carbon nanotube composites including single-wall or multi-wall carbon nanotubes incorporated into the matrix of a polymer are provided. These composites can be used in environments exposed to galactic cosmic radiation. Accordingly, the composites are useful in deep space applications like space vehicles, space stations, personal equipment as well as applications in the biomedical arts and atom splitting research. The composites can be modified with organic dyes containing at least one phenyl ring and the resulting doped composite is useful as a radiation detector. The preferred polymer is poly(4-methyl-1-pentene). At low nanotube concentrations (i.e., about 0.5 wt % or less), the composites exhibit transparent optical qualities. At higher nanotube concentrations (i.e., about 0.6 wt % or more), the composites are non-transparent.

Polymer/carbon nanotube composites, methods of use and methods of synthesis thereof

Novel transparent composites composed of single wall carbon nanotubes incorporated into the matrix of a polymer are utilized in services wherein the composites are exposed to ionizing radiation, including galactic cosmic radiation. Accordingly, the composites are useful in deep space applications like space vehicles, space stations, personal equipment as well as applications in the biomedical arts and atom splitting research. The composites can be modified with organic dyes containing at least one phenyl ring and the resulting doped composite is useful as a radiation detector. The preferred polymer is poly(4-methyl-1-pentene).

The present invention provides a method for the effective dispersion of carbon nanotubes into a polymer matrix. Through a combination of dispersion through sonication, in situ polymerization, dissolution, and film casting, transparent polymer carbon nanotube composites are produced.

Transparent polymer carbon nanotube composites and process for preparation

Toner particles are provided wherein a magenta dye is dispersed in a styrene butylacrylate copolymer. The dispersed dye is not aggregated, is colorfast, and does not sublime as the particles are heat fused. The dye is a 1,4-diaminoanthraquinone which is substituted in the 2 and 3 positions with phenoxy groups that are, in turn, substituted by either a lower alkyl or chloro group.

Styrene butylacrylate toner with magenta dye

Novel cyano hydroxy pyridone monoazo yellow dye compounds are useful in thermoplastic electrostatographic toners. They absorb at the desired wavelength, are lightfast and have high tinctorial strength. They resist decomposition, sublimation and bleeding upon being thermally fixed to a substrate. For use in color transparencies, these dyes form a transparent toner image.

Toners and yellow dye compounds used therein

A colored, transparent electroscopic toner is provided comprising:

Growing community of inventors

Tampa, FL, United States of America

Julie P Harmon