Abstract: A coating, ink, or article containing a pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III).

Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a white background, is selected from the group consisting of: a CIELAB L* value of about 30 or less and a chroma value of about 3 or less; a CIELAB hue angle, hab, from about 50 to about 80 degrees, wherein L* is not more than about 85, and the chroma value is greater than 22; a CIELAB hue angle, hab, from about 80 to about 275 degrees, wherein L* is not more than about 80, and the chroma value is greater than about 10; and a CIELAB hue angle, hab, from not less than about 275 to not more than about 50 degrees, wherein L* is not more than about 85, and the chroma value is greater than about 9. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.

Abstract: A cosmetic containing a pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III).

Abstract: A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.

Abstract: Disclosed are rare earth pigments, and methods for making and using these pigments, in security applications. The rare earth pigments are IR absorbers with unique spectral features and optionally exhibit color inconstancy.

Abstract: One method for playing a disk, comprises illuminating a first portion of the optical article with a first laser to obtain a first optical signal, wherein the first laser has a first wavelength, illuminating a second portion with a second laser to obtain a second optical signal, wherein the second laser has a second wavelength that is different from the first wavelength, and determining if the optical article is authentic by comparing the first optical signal and the second optical signal.

Abstract: A compound of Formula (I): wherein R1 is selected from the group consisting of an aliphatic functionality having 2 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; with the proviso that R1 is not —C6H5 or —NH—C10H7; R2 and R3 are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 2 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; X is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.

Abstract: An article comprising the compound of Formula (I): wherein R1 is selected from the group consisting of an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; R2 and R3 are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; Y is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.

Abstract: A light diffusing film for a back light display is described. The light diffusing film includes a unitary film consisting essentially of polycarbonate and a uniformly dispersed anti-static material in an amount sufficient to impart anti-static properties to the film. The anti-static material may comprise a fluorinated phosphonium sulfonate. The film may additionally include at least one textured surface for the low scattering of light. Alternatively, the film may additionally include a uniformly dispersed acrylic bulk scattering additive of particles having a mean particle size of from about 3 to about 10 microns and present in an amount from about 2 to about 7 percent by weight percent for the high scattering of light.

Abstract: A light diffusing film for a back light display is described. The light diffusing film includes a unitary film consisting essentially of polycarbonate and a uniformly dispersed anti-static material in an amount sufficient to impart anti-static properties to the film. The anti-static material may comprise a fluorinated phosphonium sulfonate. The film may additionally include at least one textured surface for the low scattering of light. Alternatively, the film may additionally include a uniformly dispersed acrylic bulk scattering additive of particles having a mean particle size of from about 3 to about 10 microns and present in an amount from about 2 to about 7 percent by weight percent for the high scattering of light.

Abstract: Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II, wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2-cycloalkylidene group, or combinations thereof; “q” is independently an integer from 1-4, L is a linking group, and “r” is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.

Abstract: Battery-powered devices which are capable of authenticating batteries. In one embodiment, a device comprises: a battery, an excitation source, a photodetector, and an operating system. The device is capable of at least partially being powered by the battery. The excitation source is capable of producing radiation and disposed so that the radiation can contact a surface of the battery. The photodetector is capable of detecting radiation from the battery. The operating system is capable of determining whether or not the battery is an authentic battery for that device.

Abstract: Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II, wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2-cycloalkylidene group, or combinations thereof; “q” is independently an integer from 1–4, L is a linking group, and “r” is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.

Abstract: An optical article for being transformed from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes a convertible element disposed in or proximate to the optical article and being responsive to an external stimulus. The convertible element for irreversibly altering the optical article from the pre-activated state of functionality to the activated state of functionality upon interaction with the external stimulus.

Abstract: One method of authenticating an article comprises illuminating an article and determining if an altered emission is within a selected emission range. The article comprises a polymer layer and a coating disposed on a side of the polymer layer. The polymer layer comprises a first taggant, and the coating causes a predetermined alteration in an emission from the taggant to form the altered emission.

Abstract: A thermoplastic composition comprising a polycarbonate, and an aromatic sulfonate compound of formula: Ar1—S(O)2—O-L-O—S(O)2—Ar1 wherein each Ar1 is each independently a substituted or unsubstituted C6-20 aryl group, and L is a branched, substituted or unsubstituted divalent aliphatic hydrocarbon, wherein a molded article having a thickness of 3.2±0.12 millimeters and consisting of the polycarbonate, the aromatic sulfonate compound, and an effective amount of each of an aliphatic diol, a mold release agent, and an antioxidant has, after exposure to a total gamma radiation dose of 83 kGy and when measured according to ASTM D1925-70, an increase in yellowness index (dYI) of less than or equal to 45, when compared to the unexposed molded article. Methods of making the thermoplastic composition, and articles prepared therefrom, are also disclosed.

Abstract: A thermoplastic composition comprises a polycarbonate, and an aromatic sulfonate compound of formula (Y)m—Ar-(Z-S(O)2—X)n wherein each X is independently a substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C1-C20 arylalkyl, substituted or unsubstituted C6-C20 aryl, or substituted or unsubstituted C7-C40 alkylaryl; Z is —O—, or substituted or unsubstituted —(O—C1-20—)w—O—, wherein w is 1 to 20; Ar is a C6-C62 aromatic group; m is 0-3 and n is 3-6; and each Y is independently C1-C20 alkyl, substituted C1-C20 alkyl, C6-C20 aryl, C1-C8 alkyl-substituted C6-C20 aryl, halogen, nitro, C1-C20 alkoxycarbonyl, C1-C20 alkoxy, or C1-C20 acyl, and further wherein a molded article having a thickness of 3.2±0.

Abstract: A thermoplastic composition comprises a polycarbonate, an ionizing radiation stabilizing additive, and a poly-substituted aromatic compound of formula: wherein X is an aryl group; Y is a non-hydrogen substituent group, a is 1 to 4, b is 0 to 4, a+b is less than or equal to 4, and c is 0 or 1; and wherein the amounts and identities of the polycarbonate, ionizing radiation stabilizing additive, and poly-substituted aromatic compound are selected such that a molded article having a thickness of 3.18 millimeters and comprising the thermoplastic composition has, after exposure to gamma radiation at 83 kGy and when measured according to ASTM D1925-70, an increase in yellowness index (dYI) of less than or equal to 50, when compared to the unexposed thermoplastic composition.

Abstract: In one embodiment, a colored polymeric resin composition, comprises: a polymeric resin; and a 1,8-diaminoanthraquinone derivative having a purity of greater than or equal to about 90 wt % and having a Formula (VIII): wherein R2–R7 are, individually, selected from the group consisting of a hydrogen atom, a hydroxyl group, an alkoxy group, an aryloxy group, an aliphatic group, an aromatic group, a heterocyclic group, a halogen atom, a cyano group, a nitro group, —COR9, —COOR9, —NR9R10, —NR10COR11, —NR10SO2R11, —CONR9R10, —CONHSO2R11, and —SO2NHCOR11; in which R9 and R10 are, individually, selected from the group consisting of a hydrogen atom, an aliphatic group, an aromatic group, and a heterocyclic group; wherein R11 is selected from the group consisting of an aliphatic group, an aromatic group, and a heterocyclic group; and wherein R is selected from the group consisting of hydrogen, an alkyl group containing 1 to 20 carbon atoms, a cycloalkyl group containing 3 to 20 carbon atoms, an allyl group containi

Abstract: Disclosed herein are randomly marked plastic materials and articles, and methods for their fabrication. In one embodiment, a randomly marked article can comprise: a random distribution of markings within a substrate, and machine readable data and/or a data layer capable of comprising machine readable data. The substrate was formed a first plastic and a second plastic, wherein the first plastic and the second plastic comprise a sufficient difference in a property to cause the random distribution. In one embodiment, a method for fabricating an article, comprises: combining a taggant with a first plastic to form a tagged plastic; molding the article from the tagged plastic and a second plastic, wherein the article comprises a random distribution of the taggant; and mapping taggant in the article to form a map.