摘要:
A laser-exposed thermal recording element comprising a flexible support having thereon the following imaging layers in sequence: a) an electrically conductive layer, and b) an electro-deposited black layer, with the proviso that the sum of the optical densities of layers a) and b) is between about 0.5 and about 5.
摘要:
A radiographic phosphor panel and radiographic phosphor composition. The radiographic phosphor panel includes a support and a luminescent layer. The luminescent layer overlies the support. The luminescent layer includes binder and coated particles. The binder is a film-forming polymer. The coated particles are embedded in the binder. The coated particles each have a core and a shell. The core is radiographic phosphor. The shell is exterior to and substantially encloses the core. The shell comprises vinyl-epoxy resin, having uncured epoxy groups in a concentration of from about 1.times.10.sup.-5 to about 60 percent by weight relative to the weight of the shell. The resin has a different composition than the binder.
摘要:
A radiographic phosphor panel having an organolead reducing agent. The phosphor panel has a support and a luminescent layer overlaying the support. The luminescent layer can include phosphor crystals, binder and organolead reducing agent. The organolead reducing agent has a concentration sufficient to substantially increase the photostimulated luminescence of the panel.
摘要:
A method, a storage phosphor prepared by the method, and a storage panel. In the method, a precursor mixture is fired, at a temperature between 700.degree. C. and the melting point of the phosphor, to produce an intermediate product. The precursor mixture comprises a combination of species characterized by the relationship:MFX.sub.1-x I.sub.z.uM.sup.a X.sup.a :yA:eQwherein M is selected from Mg, Ca, Sr and Ba; X is selected from Cl and Br; M.sup.a is selected from Na, K, Rb and Cs; X.sup.a is selected from F, Cl, Br and I; A is selected from Eu, Ce, Sm, and Tb; Q is metal oxide; and 0
摘要:
The present invention relates to bioactive hetero-coagulated mixed materials that have high strength and durability, that are prepared using an aqueous process, and that have a high transparency when placed into a monomer, polymer, or resin of approximately the same refractive index.
摘要:
The present invention relates to hetero-coagulated silica-alumina mixed oxide compositions that have a sharp refractive index and narrow refractive index dispersion between about 1.46 and 1.60.
摘要:
Disclosed are embodiments and methods relating to the treatment of textile, such as a textile substrate, with an aqueous dispersion of surface-functionalized particles and a fluorochemical, or a textile substrate treated with an aqueous dispersion of surface-functionalized particles, a fluorochemical, and a flame retardant chemical. Textiles treated in accordance with the disclosed embodiments (e.g., fluorine concentration of from 20 to 900 ppm) demonstrate an average burn rate less than about 4.0 inch/minute, and an average weight loss is less than about 40% of the original weight. During burning of the treated textile, flaming drips extinguish (on average) in less than about 2 seconds, or does not increase the peak heat release rate by more than about 70%, and the mass loss rate by more than about 50%.
摘要:
The invention relates to a composition comprising a colloid which is stable under physiological pH and ionic strength, said colloid comprising particles having a silica core and a shell: a) wherein said shell comprises a cross-linked poly(ethylene)imine polymer having amine functionalities; b) wherein the particles have a volume-weighted mean particle size diameter of less than 200 nm, and c) wherein greater than 50% of said polymer in the colloid is bound to the core surfaces, wherein the polymer having amine functionalities has an average molecular weight less than 100,000 g/mol, the composition has a H of between 6 and 8; and d) wherein the colloid contains between 300 and 6000 .μmol amine-monomer/g core particles.
摘要:
The invention relates to An X-ray exposure indicator device comprising a solid X-ray sensitive material that upon X-ray exposure undergoes a chromatic change, wherein the exposure indicator device does not significantly change color when subjected to UV or visible radiation.
摘要:
This invention relates to an antimicrobial composition comprising an antimicrobial compound and a polyethylene-polyvinylalcohol copolymer. It further relates to a medium having antimicrobial properties comprising a support and a layer comprising an antimicrobial composition comprising an antimicrobial compound and a polyethylene-polyvinylalcohol copolymer.