Abstract: The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, with b) an organic compound of Formula II X—B—X1  wherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formula  and a cyclic compound having the general formula  wherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remai

Abstract: The present disclosure relates to aqueous dispersions of silver (carboxylate-azine toner) particles wherein the azine content of the particles is from about 0.01 to 10% by weight relative to silver carboxylate. The carboxylates are typically silver salts of long chain fatty acids and the azine toners are the compounds that function as development accelerators and toning agents such as phthalazine. These silver (carboxylate-azine) particles can be used to formulate imaging forming compositions that are useful in aqueous thermographic or photothermographic imaging elements.

Abstract: A bandpass filter containing specific combinations of the dyes to yield filters which are adapted to selectively transmit predetermined primary color wavelengths of an electromagnetic spectrum as well as selectively absorb wavelengths other than the predetermined primary color wavelengths. The multiple bandpass filters are employed to improve the images on CRT screens and plasma display panels.

Abstract: An electrically conductive polymeric article including a polymeric material capable of exhibiting electrical conductivity; the polymeric material being rendered electrically conductive by treatment with a viologen salt.

Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1

Abstract: Coloring matters and filters for plasma display panels, which can effectively screen the neon emission radiated from plasma display panels. Squarylium compounds represented by the following formula (I): [in the formula (I), R is a halogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, or an alkenyl group which may have a substituent, m is an integer of from 1 to 4, and n is an integer of from 0 to 4], and filters for plasma display panels, made by laminating layers containing these compounds with layers containing ultraviolet absorbers and, if necessary, providing additionally near infrared screening layers, antireflection layers and/or non-glare layers.

Abstract: Aqueous dispersions (U) containing: (A) a UV-light-absorbing textile treatment agent and (B) a dispersant system containing (BX) a non-ionogenic, polymeric, hydrophilic dispersant or a mixture of such dispersants and (BY) a non-ionogenic or anionic, vinyl-polymeric, hydrophilic thickener or a mixture of such thickeners, and optionally at least one of the following further components: (BZ) at least one non-ionogenic or anionic surfactant other than (BX) (BW) at least one dispersing auxiliary other than (BY). (C) by-products and/or concomitants (D) at least one formulation additive and (E) at least one agent for setting the pH are particularly stable and are very useful for the UV-active finishing of textile material.

Abstract: Improved compounds and base precursors that undergo thermal decomposition are disclosed. Thermal-dye-bleach agents, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents for photothermographic use are disclosed. Photothermographic elements employing these thermal-dye-bleach agents are suitable for use as acutance and antihalation systems, bleachable filter dye materials, and in promoting unblocking of various components such as blocked developers, especially in in photothermographic elements.

Abstract: Use of a semi-crystalline polymer in a composition containing at least one organic UV screening agent. The polymer makes it possible to increase the sun protection factor (SPF). In addition, the semi-crystalline polymer makes it possible to introduce better dispersion of screening agents and confers, on the composition, good resistance to water (waterproof effect) and better spreading qualities. Composition for the photoprotection of keratinous substances, in particular for the protection of the skin and/or hair against solar radiation.

Abstract: Triazine, benzotriazole and benzophenone derivatives which are substituted or bridged with polyoxyalkylene groups, according to claim 1, and their use as UV absorbers, especially in photographic materials, in inks, including inkjet inks and printing inks, in transfer prints, in paints and varnishes, organic polymeric materials, plastics, rubber, glass, packaging materials, in sunscreens of cosmetic preparations and in skin protection compositions.

Abstract: Functionalized organo-silicone compounds incorporate ultraviolet radiation screening or absorbing moieties. The novel materials of the invention are durable and provide uniform UV absorption properties when used in various applications, including coatings on substrates such as glass, in particular float glass. Methods for their preparation and use are also provided.

Abstract: Combinations of individual colorant compounds that provide effective toning (or bluing) to combat yellowing within polyester articles (such as bottles, containers, and the like) are provided. Such a novel toner combination permits effective neutralization of yellowness while also providing highly desirable low haze and increased brightness due to a sharp absorption peak within the needed range of wavelengths (e.g., from about 565 to 590 nm) and a narrow half-height band width. Furthermore, such a combination of compounds is preferably liquid in nature and may thus be incorporated within an added ultraviolet absorber solution or shelf-stable dispersion to facilitate addition within target polyesters at various stages of production. The particular UV absorbers desired as additives within target polyesters also tend to exhibit certain yellowing effects that require attention as well. The inventive combination bluing agent thus also accords effective neutralization of such UV absorber yellowing as well.

Abstract: Functional optical materials for optical systems that are typically useful in optical waveguides, optical switching systems, optical modulators, optical computing systems and the like. Included are polymer systems and electrooptical chromophores. Polymers are thermoplastic and/or thermosetting polymers and are blended or co-polymerized with the electrooptic chromophore. The thermoplastic or thermosetting polymer selected from an acrylic/methacrylic, polyester, polyurethane, polyimide, polyamide, epoxy resin, or hybrid (organic-inorganic) or nanocomposite polyester polymer. The electrooptic chromophore is selected from a substituted aniline, substituted azobenzene, substituted stilbene, or substituted imine. Methods for improving adhesion promotion for the various novel materials are also provided.

Abstract: Novel thermoplastic articles that contain novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat any discoloring within clear, colorless applications), are substantially non-migratory from target resins, and are highly effective in providing protection in wavelength ranges for which previous attempts at low-color ultraviolet absorbers have failed are provided. In effect, the inventive thermoplastic articles, provide excellent protection for certain vitamins, flavorings, and colorants, for example, from ultraviolet degradation, particularly above the 370 nm wavelength that is typically the high end of protection for clear thermoplastics having low migratory, colorless UV absorbers therein.

Abstract: Novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing protection in wavelength ranges for which previous attempts at low-color ultraviolet absorbers have failed are provided herein. Such compounds provide such excellent, inexpensive, and beneficial protection from ultraviolet exposure within various media, including, but not limited to, clear thermoplastics. The particular compounds are generally polymeric in nature including various chain lengths of polyoxyalkylenes thereon and are liquid in nature to facilitate handling and introduction within the target media. In addition, such ultraviolet absorbers also exhibit extremely low migratory properties thereby providing long-term protective benefits to the target media as well.

Abstract: The invention relates to a mixture, comprising (A) 10 to 90 wt. % of at least one C6 to C18 alkyl ester, or C5 to C8 cycloalkyl ester of 2-cyano-3,3-diphenylacrylic acid and (B) 90 to 10 wt. % of at least one further compound, with at least one UV absorption maximum in the range 280 to 450 nm and structurally different from compound (A). Said mixture is suitable for the protection of human skin from damaging UV radiation and for the protection of coloured textile materials from colour fading.

Abstract: The present invention pertains to an optical shutter comprising an organic free compound, preferably a radical cation or a radical anion, wherein the organic free radical compound forms an oxidized or a reduced product having a change in absorption in a near-infrared or a visible wavelength region as a result of a photo-induced electron transfer reaction of the free radical compound. Preferably, the photo-induced electron transfer reaction occurs in less than 0.1 nanoseconds after absorption of photons by the free radical compound. Also, preferably, the change in absorption is reversible and occurs in less than 10 milliseconds. Also provided is an optical shutter for use as an optical switch in fiber optic communications, and, alternatively, for use in a laser protection device, a security protection system, and an eyewear device.

Abstract: The present invention provides compounds of formula I, which are effective in absorbing ultraviolet radiation and can be used as sunscreen agents: wherein R1 and R2 are each independently C2-C18 alkyl, C5-C7 cycloalkyl, or C2-C18 alkyl in which at least one methylene group is replaced by oxygen; R3 is hydrogen, C1-C18 alkyl, C2-C18 alkyl in which at least one methylene group is replaced by oxygen, C1-C18 alkyl carbonyl, C3-C18 alkenyl, C3-C18 alkynyl, or a group YS; R4 is hydrogen, C1-C8 alkyl or a group OR3; Y is a linker group; and S is a silane-, an oligosiloxane- or a polysiloxane-moiety.

Abstract: Novel naphthopyrans having an oxygen-containing heterocyclic group F annelated on the f, i, j, or k side of the naphthopyran ring.

Abstract: The optical material in accordance with the present invention contains a specific phosphonate monoester compound such as monoethyl 3-methoxy butyl phosphonate, and a metal ion such as a copper ion or rare-earth metal ion. They may be contained in a solvent or resin. The use of such a specific phosphonate monoester compound improves the compatibility with a resin, whereby the metal ion can favorably be dispersed into the resin. Consequently, spectral characteristics can be improved when the optical member is formed into a resin-made optical member.

Abstract: Ultraviolet light absorbing polymer film, coating, or molded article UV filter elements are described which comprise a polymer phase having molecularly dispersed therein a) a first ultraviolet absorbing dibenzoylmethane compound of formula (I) 1

Abstract: Disclosed are optical materials which effectively absorb UV light up to the long wavelength band, have low specific gravity, and have balanced properties including impact and heat resistances; lenses; and optical material compositions as their starting materials.

Abstract: An ion conductive material comprising a mixture of a solvent, a supporting electrolyte, and an ultraviolet absorber and alternatively a polymerizable monomer and having an ion conductivity at 25° C. of 1×10−7 or greater; the ultraviolet absorber being contained in the ion conductive material in such an amount that the transmissivity of electromagnetic rays having a wavelength from 300 to 360 nm and transmitting through an layer of the ion conductive material of 0.2 mm in thickness can be maintained 0.1% or below. The ion conductive material is suitable for use in various electrochromic devices.

Abstract: The present invention relates to methods for using a maleimide of formula (I) with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia as UV fluorescent material for void detection and for the preparation of scintillators films, luminescent solar energy collectors, organic electroluminescent devices, printing inks, non-impact printing inks, electrophotographic toners, color filters, and colored high molecular organic material.

Abstract: A class of molecules suitable for linear and nonlinear optical applications which include charged aromatic groups which function as electronic donors and acceptors connected through polyhedral and &pgr;-organic and inorganic groups. The polyhedral and &pgr;-organic and inorganic groups function as structural and electronic bridges for the charged donors and acceptors.

Abstract: UV-absorbers of the 4-alkoxy-2-hydroxyphenyl-s-triazine type are incorporated in a cellulose triacetate film. Such an UV-cut off film can be used advantageously, amongst others, as protective sheet for a polarizer in a Liquid Crystal Display.

Abstract: A sporting goods article with a coating on a surface of the article for abrasion resistance and/or a high gloss appearance. The outer layer of the surface is a polymer, wood, metal, non-polymeric ink, non-polymeric colorant, non-polymeric dye, or a combination thereof The coating is a cured ceramer composition. The cured ceramer composition, in its simplest embodiment, is derived from a composition including inorganic oxide particles and a curable organic matrix, with the curable organic matrix including at least one ethylenically unsaturated monomer and at least one organofunctional silane monomer coupling agent.

Abstract: The disclosed invention includes a composition for an optical fiber reel cover. The cured composition includes a polymer and a light inhibitor. The invention also includes a method of making an optical fiber reel cover with the inventive composition. The invention further includes a method to prevent photo-yellowing of coated optical fiber stored on a spool. The inventive reel cover is attached to a spool containing the fiber stored on a barrel of the spool. The cover conceals the fiber.

Abstract: A two-layer coating system blocks ultraviolet radiation up to and including 400 nanometers, the upper end of ultra violet light. An inner layer blocks radiation from about 375 nanometers to 400 nanometers. An outer layer absorbs radiation up to 375 nanometers.

Abstract: Acrylic copolymers derived from a monomer mixture containing a vinyl monomer having a benzotriazole skeleton which is high in ultraviolet absorptivity and wide in ultraviolet absorptive wavelength range, an acrylic ester and a methacrylic ester are useful for the preparation of a non-water-based coating composition forming a coating film having an ultraviolet shielding ability. Acrylic copolymers derived from the above monomer mixture further containing a vinyl monomer containing carboxyl groups are useful for the preparation of a water-based coating composition having an ultraviolet shielding ability.

Abstract: An ultraviolet radiation resistant coating is disclosed comprising cerium oxide in an inorganic oxide matrix formed by the hydrolysis and condensation of an organoalkoxysilanie and/or other metal alkoxide in combination with the reaction product of cerium oxide and tetraalkylsilicate.

Abstract: The present invention is related to photonic crystal devices that comprise novel mesoscopic periodic materials which comprise polymerized crystalline colloidal arrays (CCA) and at least one photosensitive component. Preferably, the photosensitive component is a photochromic molecule and more preferably the component is an azobenzene derivative. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, display devices and memory storage devices. The devices of the present invention permit the possibility to write with ultraviolet light and erase with visible light. In addition, the present invention is related to a functionalized polymerized crystalline colloidal array which preferably comprises reactive epoxide groups. The present invention is further directed to a photosensitive polymerized crystalline colloidal array.

Abstract: An optical filter comprises a transparent support and a filter layer. The filter layer contains a dye and a binder polymer. The dye is a methine dye in an aggregated form. The transparent support, the filter layer or an optional layer further contains a specific ultraviolet absorbing agent represented by the formula (I), (II), or (III).

Abstract: A method is provided for fabricating composite nonlinear optical (NLO) organic films that are suited for use in NLO device applications. The highly NLO properties of these films arise from the vector alignment of ‘guest’ NLO molecules in a self-ordered nano-structured liquid crystal ‘host’ film. Field-poling is used to remove the centro-symmetry. The ‘guest’ concentration is increased by film processing to incorporate oriented nonlinear nano-crystallites to increase nonlinearity. NLO devices based on such films are of low cost and permit fast switching in a compact device format.

Abstract: An ultraviolet radiation resistant coating is disclosed comprising cerium oxide in an inorganic oxide matrix formed by the hydrolysis and condensation of an organoalkoxysilane and/or other metal alkoxide in combination with the reaction product of cerium oxide and tetraalkylsilicate.

Abstract: Ink compositions containing ultraviolet absorbing compounds of formula I wherein R1, R2 and R3 are defined herein, and wherein the compound contains one or two —SO3M groups, one —SO3M and one —CO2M group, or two —CO2M groups. Ink jet ink compositions containing ultraviolet absorbing compounds of formula IV wherein R2, R3, R4, R5 and R6 are defined herein, and wherein the compound contains one or two —SO3M groups, one —SO3M and one —CO2M group or two —CO2M groups, with the provision that either (1) R2 and R3 are not both hydrogen, or (2) R5 is not hydrogen. The ink compositions are adapted for ink jet printing.

Abstract: UV-absorbers of the 4-alkoxy-2-hydroxyphenyl-s-triazine type are incorporated in a cellulose triacetate film. Such an UV-cut off film can be used advantageously, amongst others, as protective sheet for a polarizer in a Liquid Crystal Display.

Abstract: A nonlinear optical material which is characterized as having a relatively high macroscopic dipole moment achieved through the generally parallel packing of dipolar molecules in a relative orientation to reinforce their dipole moments. The nonlinear optical material may be a crystalline azine or imine bridged di-arene in which the arenyl groups, which can be the same or different, are substituted with an electron donor group on the first arenyl group Ar1 and A is an electron acceptor group which is substituted on the second arenyl group Ar2. B is an azine or imine bridge which extends between and interconnects the first and second arenyl groups. The nonlinear optical material has a dipole alignment factor of at least 0.1, more preferably, at least 0.5.

Abstract: This invention discloses synergistic blends of phosphates and lactones having a base structure of 3-phenylbenzofuran-2-one with or without other additives as stabilizers for polymers, particularly during melt processing as evidenced by changes in melt flow and in some instances, resistance to yellowing.

Abstract: A liquid immersion oil which is used in optical systems in any of the fields of microscopes, fluorescence microscopes, optical measurements and other related fields includes a liquid polyolefine or a liquid copolymer of butylene (&agr;-butylene, &bgr;-butylene) and another olefine, blended with an aromatic compound, or blended with an aromatic compound and a paraffin compound.

Abstract: The present invention recites a method comprising reacting in a solvent in the presence of a base a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, with b) an organic compound of Formula II X—B—X1 wherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formula and a cyclic compound having the general formula wherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remaining portion of A

Abstract: An optical brightener comprising one or more spiro compounds of the formula (I), where K1 and K2, which are identical or different, are conjugated systems, and &psgr; is C, Si, Ge, Sn or Pb, is notable for high fluorescence quantum yields and a high temperature stability.

Abstract: An absorber of rays outside the visible region. The absorber includes a base made of a transparent synthetic resin with electroconductive anhydrous zinc antimonate incorporated therein; or a base made of a transparent synthetic resin with a layer formed of a synthetic resin and electroconductive anhydrous zinc antimonate incorporated therein, for absorbing rays outside the visible region, being disposed on a surface of the base; or wherein the layer is formed by depositing electron conductive anhydrous zinc antimonate powder on a surface of the base made of a transparent synthetic resin. The electroconductive anhydrous zinc antimonate can be a powder having a molar ratio of ZnO to Sb2O5 of 0.8 to 1.2 and a primary particle size of 5 to 200 nm. The light transmittances of the absorber are high in the visible region and low in both the ultraviolet and infrared wavelength regions.

Abstract: A solar blind optical filter which absorbs solar UV radiation and transmits non-solar UV radiation includes a carrier material and a salt of a dithioic acid of the formula RCS.sub.2.sup.- X.sup.+ wherein R is an a organic substituent that does not absorb ultraviolet light at wavelengths between 260 nanometers and 300 nanometers and X is a counterion. The solar blind optical filters of the present invention are useful for observing non-solar ultraviolet radiation in the presence of solar radiation.

Abstract: The present invention relates to a nickel-porphyrin derivative in a matrix, the nickel-porphyrin derivative comprising at least two conformational isomers, a lower-energy-state conformer and a higher-energy-state conformer, such that when the higher-energy-state conformer is generated from the lower-energy-state conformer following absorption of a photon of suitable energy, the time to return to the lower-energy-state conformer is greater than 40 nanoseconds at approximately room temperature. The nickel-porphyrin derivative is useful in optical memory applications.

Abstract: The composition formed by mixing an organosilane with an ether. Water-stabilized organosilane compounds. A water stable composition made from the ether and organosilane composition and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article.

Abstract: The present invention teaches a method for making a photochromic ultraviolet protective shield. The UV blocking eyewear uses a material which changes color when exposed to UV radiation. The obtained visible color is directly proportional to the intensity of ultraviolet light impinging the material. The photochromic ultraviolet protective shield is made by adjunction of photochromic compounds to a host polymer matrix. Incorporation of photochromics into a polymeric matrix involves the technique of injection molding, extrusion molding or cell-casting. This invention will offer the advantages i) to protect the eye or the face by absorbing the dangerous ultraviolet rays such as UV laser radiation ii) to reduce glare and squinting of the eye by automatically darkening in sunlight.

Abstract: Disclosed is an object made of plastic material, in particular a plastic ophthalmic lens, colored with at least one photochromic substance which is also excited by light in the UV range of the spectrum and has a higher absorption in the excited state, judged by the spectral light sensitivity of the human eye, than in the not excited state and to which, in addition, at least one UV absorbing material is added in such a concentration that darkening of the photochromic substance(s) is independent of the UV fraction of the excitation light.But rather the intensity of the darkening depends on brightness, i.e. the intensity integrated over the spectral light sensitivity of the human eye V.sub.2.

Abstract: The present invention relates to adhesive compositions comprising at least one light emitting material and which are suitable for bonding substrates together and may be detected and measured via non-invasive techniques.

Abstract: Process for broadening cholesteric reflection bands of photopolymerizable cholesteric liquid crystals, and optical elements produced by this process. The invention relates to a process for broadening the cholesteric reflection bands of photopolymerizable cholesteric liquid crystals, which comprises the following process steps:1) partial polymerization of a layer containing photopolymerizable cholesteric liquid crystals by exposure to actinic light for a defined brief period at a defined temperature,2) observance of a defined waiting time without exposure (dark phase) at a defined temperature,3) fixing of the resultant layer by exposure to actinic light at a defined temperature.