Abstract: A fire-retardant formulation for styrene-containing polymers comprising tris(2,4,6-tribromophenoxy)-s-triazine (FR-245), antimony trioxide and polytetrafluoroethylene (PTFE), wherein the bromine concentration in said fire-retardant formulation is from about 9.0 to about 10.5 wt. %, said antimony trioxide concentration being lower than about 3.2 wt. %.

Abstract: Composition comprising fluoropolymers, such as polytetrafluoroethylene (PTFE), poly(hexafluoroethylene), poly(tetrafluoroethylene-hexafluoroethylene), and poly(tetrafluoroethylene-ethylene-propylene), which are dispersed in flame retardants, such as organic, bromine compounds and/or organic phosphorus compounds, and that consist of particles that comprise one or more fluoropolymers and flame retardants. The fluoropolymers may be enveloped by the flame retardant.

Abstract: This invention provides a flame retardant for polymeric compositions which is a mixture consisting of high molecular weight brominated epoxides modified with tribromophenol, having a low content of organic solvents. The invention further relates to a method for the preparation of the retardant, and to its use in flame retarded engineering thermoplastics having good chemical, thermal, and mechanical properties.

Abstract: A method for artifact reduction in CT images comprising reconstructing a first data image using an inexact reconstruction algorithm, segmenting the first data image to provide a second image with high attenuation objects separate from low attenuation objects, reprojecting the second image to form a second set of data, reconstructing a third image from the second data set using an inexact reconstruction algorithm; and subtracting at least those portions of the third image outside the high attenuation object from the first image.

Abstract: A method for artifact reduction in CT images comprising reconstructing a first data image using an inexact reconstruction algorithm, segmenting the first data image to provide a second image with high attenuation objects separate from low attenuation objects, reprojecting the second image to form a second set of data, reconstructing a third image from the second data set using an inexact reconstruction algorithm; and subtracting at least those portions of the third image outside the high attenuation object from the first image.

Abstract: The present invention relates to A flame-retardant polyolefin composition or to a fiber that are comprised of (i) at least one polyolefin; (ii) a tris(tribromoneopentyl) phosphate; and (iii) afree radical source. The composition may further comprise an additional flame-retarding compound, which may be selected from an inorganic or an organic compound. It may further comprise ultra violet protectants. The invention is also related to a textile object comprised of a plurality of said fibers and to injection or extruded molded articles produced from said flame-retardant compositon.

Abstract: The present invention relates to A flame-retardant polyolefin composition or to a fiber that are comprised of (i) at least one polyolefin; (ii) a tris(tribromoneopentyl) phosphate; and (iii) afree radical source. The composition may further comprise an additional flame-retarding compound, which may be selected from an inorganic or an organic compound. It may further comprise ultra violet protectants. The invention is also related to a textile object comprised of a plurality of said fibers and to injection or extruded molded articles produced from said flame-retardant compositon.

Abstract: A method of enhancing a medical image including identifying at least one physical characteristic of a tissue portion based on a characteristic of a portion of the image and applying an image processing technique to the image portion chosen based on the at least one tissue characteristic.

Abstract: The present invention discloses a novel fire retardant composition that includes hexabromocyclododecane (HBCD) and an epoxy resin, including halogenated bisphenolic epoxy resins, halogenated phenol novolac epoxy resins, halogenated cresol novolac epoxy resins, halogenated resorcinol epoxy resins, halogenated hydroquinone epoxy resins, halogenated bisphenol A novolac epoxy resins, halogenated methyl resorcinol epoxy resins and halogenated resorcinol novolac epoxy resins, where the epoxy resin has an epoxy equivalent ranging from 150 to 800 g/eq. The addition of the epoxy resin improves heat stability of HBCD, allowing an increase in the processing temperature.

Abstract: Epoxy resins which are diglycidyl ethers of tetrabromobisphenol A having a crystalline structure and in particulate form have an epoxy equivalent weight between 320 and 380 g/eq and a chlorine content that is smaller than 0.3%.

Abstract: A method for preparing flame retardant thermoplastic nylon compositions comprising incorporating into the thermoplastic nylon a halogenated bisphenol-A epoxy resin having a halogen content of at least 20% and a molecular weight above 8,000 in an amount sufficient to impart flame retardance.