Abstract: Optical brighteners are widely used for decreasing the apparent yellowness of polymeric materials. Polyethylene, as a coating film for photographic paper has presented unique problems because of its general lack of compatibility with conventional, large, fluorescent brightener molecules. The present invention provides a solution to this problem by incorporating into the polyethylene an optical brightener compatibilizing amount of a second polyolefin having alkyl groups pendant from the polymer backbone which serves to reduce the exudation of the optical brightener in articles or substrates comprised of or coated with such compositions.

Abstract: Aqueous compositions are provided which are useful for forming temporary protective coatings on metallic substrates. The aqueous compositions may contain polyvinyl alcohol, surfactant and corrosion inhibitor. The protective coating may be easily removed once the substrate has been formed or otherwise shaped.

Abstract: A thermoplastic elastomer composition for use in automotive interiors, wallcoverings, upholstery, advertising banners and films and tenting which comprises a major amount of a thermoplastic elastomer or elastomers having a weight average melt index of less than 6, a minor amount of a polymeric elastomer, a flame retardant, a maleated polypropylene, and a filler material.

Abstract: The present invention, therefore, relates to a method for preparing a thermoplastic elastomer, said method comprising: (I) mixing (A) a thermoplastic resin comprising more than 50 percent by volume of a polyester resin other than poly(butylene terephthalate), said thermoplastic resin having a softening point of 23° C. to 300° C., (B) a silicone elastomer comprising (B′) 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups in its molecule and, optionally, (B″) up to 200 parts by weight of a reinforcing filler, the weight ratio of said silicone elastomer (B) to said thermoplastic resin (A) being greater than 35:65 to 85:15, (C) 0.

Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.

Abstract: Photochromic compounds belonging to the group of spiro-isoindolino-oxazines having general formula (I). The above photochromatic compounds having general formula (I) have excellent photochromic characteristics, excellent stress resistance and high dyability characteristics.

Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.

Abstract: A colored thermoplastic resin composition comprising a crystalline thermoplastic resin containing a black dye or a black dye and a fibrous reinforcing material, wherein said black dye is a black dye obtainable by a reaction of one or more anionic surfactants selected from the group consisting of (a) to (d) below and nigrosine, and wherein the crystallizing temperature is lower than that of the original thermoplastic resin containing no black dye, (a) a sulfuric acid ester surfactant (b) a phosphoric acid ester surfactant (c) a sulfonic acid surfactant (d) a carboxylic acid surfactant.

Abstract: Water-insoluble nigrosine compound which is a salt of nigrosine with sulfuric acid and/or phosphoric acid, crystalline resin composition containing the nigrosine compound, and fiber-reinforced crystalline resin molded product comprising a crystalline resin and a fibrous reinforcing material and the nigrosine compound both contained therein, wherein the surface gloss is higher than that of the fiber-reinforced crystalline resin molded product with nigrosine as a substitute for said nigrosine compound. Methods for lowering the crystallization temperature of a crystalline resin, improving the fluidity of a crystalline resin, and improving the surface gloss of a crystalline resin, by incorporating the water-insoluble nigrosine in the crystalline resin respectively.

Abstract: Paper coating slips having high whiteness, high greying limit and high lightfastness can be prepared with the aid of whitened finely divided plastics.

Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=0 any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.

Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=o any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.

Abstract: The present invention relates to polymers whitened with optical brighteners obtained by (a) emulsion polymerization of acrylonitrile with or without a comonomer in the presence or absence of a graftable substrate, and (b) addition of an optical brightener before, during, or after the emulsion polymerization.

Abstract: A photochromic compound has the formula (I) wherein R1 is selected from the group including substituted amino aryl moieties, substituted cyclic amino aryl moieties and substituted N-indolinoaryl or N-tetrahydroquinolino aryl groups, R3 is selected from the group including linear or branched C1-C20 alkyl, linear or branched C2-C20 alkenyl or polyalkenyl, C2-C20 alkynyl or polyalkynyl, aryl, heteroaryl, linear or branched C1-C20 alkyl aryl, linear or branched C1-C20 alkyl-cycloalkyl or -bicycloalkyl or -tricycloalkyl or substituted -cycloalkyl or -bicycloalkyl or -tricycloalkyl, linear or branched C1-C20 haloalkyl or perhaloalkyl, linear or branched C1-C20 alkoxyalkyl or peralkoxyalkyl, linear or branched C1-C20 alkylthioalkyl or peralkylthioalkyl, linear or branched C1-C20 amino alkyl or peraminoalkyl, C3-C20 cycloalkyl or substituted cycloalkyl, C4-C20 bicycloalkyl or substituted bicycloalkyl, C6-C20 tricycloalkyl or substituted tricycloalkl or linear or branched C1-C20 hydroxyalkyl or perhydroxyalkyl; R4 and

Abstract: A non-toxic, edible, enteric film coating, dry powder composition for use in making an aqueous enteric suspension which may be used in coating pharmaceutical tablets comprises a) an acrylic resin, said resin comprising i) from 20 to 85 percent by weight of at least one alkyl acrylate or alkyl methacrylate moiety, ii) from 80 to 15 percent by weight of at least one vinyl or vinylidene moiety having a carboxylic acid group capable of salt formation, and iii) from 0 to 30 percent by weight of at least one other vinyl or vinylidene moiety copolymerizable with i) and ii), b) an alkalizing agent capable of reacting with the acrylic resin such that, after reaction, 0.1 to 10 mole percent of the acidic groups in 1a-ii) are present in the salt form, and c) a detacktifier.

Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a polyurethane or polyurea polymer and an amide functional ultraviolet light absorbing compound, wherein the polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polymeric matrix and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.

Abstract: A description is given of compounds of the formula I in which R1 is C1-C18alkyl; C5-C12cycloalkyl; C3-C6alkenyl; phenyl; C1-C18alkyl which is substituted by phenyl, OH, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C18alkenyloxy, halogen, —COOH, —COOR4, —O—CO—R5, —O—CO—O—R6, —CO—NH2, —CO—NHR7, —CO—N(R7)(R8), CN, NH2, NHR7, —N(R7)(R8), —NH—CO—R5, phenoxy, C1-C18alkyl-substituted phenoxy, phenyl-C1-C4alkoxy, C6-C15bicycloalkoxy, C6-C15bicycloalkylalkoxy, C6-C15bicycloalkenylalkoxy, or C6-C15tricycloalkoxy; C5-C12cycloalkyl which is substituted by OH, C1-C4alkyl, C2-C6alkenyl or —O—CO—R5; glycidyl; —CO—R9 or —SO2—R10; or R1 is C3-C50alkyl which is interrupted by one or more oxygen atoms and/or substituted by OH, phenoxy or C7-C18alkylphenoxy; or R1 denotes the specific polymerizable radicals indicated in claim 1; R2 is C6-C18alky1; C2-C6alkenyl; p

Abstract: Solid pigment preparations comprising as pigment at least one metal complex of an azo compound which in the form of its tautomeric structures conforms to the formula (I) wherein the rings X and Y may each independently bear one or two substituents selected from the group consisting of ═O, ═S, ═NR7, —NR6H7, —OR6, —SR6, —COOR6, —CN, —CONR6R7, —SO2R8, alkyl, cycloalkyl, aryl and aralkyl, the sum total of the endo- and exocyclic double bonds being three for each of the rings X and Y, R6 is hydrogen, alkyl, cycloalkyl, aryl or aralkyl, R7 is hydrogen, cyano, alkyl, cycloalkyl, aryl, aralkyl or acyl, R8 is alkyl, cycloalkyl, aryl or aralkyl, R1, R2, R3 and R4 are each independently hydrogen, alkyl, cycloalkyl, aryl or aralkyl and furthermore, as indicated by the broken lines in the formula (I), may form 5- or 6-membered rings to which further rings may be fused, R5 is —OH, —NR6R7, alkyl, cycloalkyl, aryl o

Abstract: Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings. This is particularly the case when the 3-position of the phenyl ring is also substituted by phenyl or phenylalkyl such as &agr;-cumyl. Compounds where the 5-position of the benzo ring are substituted by perfluoroalkyl such as trifluoromethyl are particularly of interest for both their enhanced durability and for their excellent solubility and excellent color properties in some thermoplastic compositions when the phenyl ring is substituted at the 3-position by hydrogen or tert-alkyl.

Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a polyurethane or polyurea polymer and an amide functional ultraviolet light absorbing compound, wherein the polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polymeric matrix and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.

Abstract: The present invention relates to a container preform comprising: a polymer suitable for the production of a stretch blow molded bottle and at least one organic or metallated organic near infrared absorbing compound which absorbs at least twice as much light between about 700 nm and about 1200 nm as between about 400 mn and about 700 nm wherein said near infrared absorbing compound is present in an amount sufficient to improve reheat rate of said preform. Suitable near infrared absorbing compounds include phthalocyanines, 2,3-napthalocyanines, squaraines (squaric acid derivatives), croconic acid derivatives, substituted indanthrones and certain highly substituted anthraquinones. A process for improving the reheat rate of a container preform is also disclosed.

Abstract: The present invention relates to the use of compounds of the formula (I) where the substituents are as defined in the description as a stabilizer for organic material against the harmful effect of light, oxygen and heat.

Abstract: The present invention relates to a novel photochromic polyurethane consisting essentially of an isocyanate reactive mixture consisting essentially of: i) from about 40 to about 85% by weight of one or more polyols having a nominal functionality of from 2 to 4 and molecular weights of from 500 to 6000 g/mole; ii) from about 15 to about 60% by weight of one or more diols or triols or mixtures thereof having a functionality of from 2 to 3 and molecular weights of from 62 to 499; b) an aliphatic polyisocyanate having a functionality ranging from about 2 to about 3; and c) a photochromic compound selected from a group consisting of spirooxazines, fulgides, fulgimides, and naphthopyrans, wherein the photochromic compound is present in an amount of 0.01 to 5 parts per hundred parts by weight of the isocyanate reactive mixture.

Abstract: A conductive organopolysiloxane composition is provided which includes (A) 100 parts by weight of an organopolysiloxane; and (B) 0.1 to 800 parts by weight of a conductive material obtained by subjecting a member selected from the group consisting of a conductive metal, a conductive metal compound, a filler surface-treated with a conductive metal and a filler surface-treated with a conductive metal compound, to surface treatment with a compound selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2). ##STR1## wherein R.sup.1 represents --O-- or --NH--, and R.sup.2 represents a hydrogen atom or a phenyl group. This composition is useful for the formation of a silicone rubber having a sufficient electrical conductivity and also stably retainable of electrical conductivity almost without undergoing a change in electrical conductivity even in a high-temperature environment.

Abstract: A novel plasticizer composition is disclosed which comprises an ethylene copolymer combined with a reactive ultraviolet (UV) absorbing agent by reaction. Useful UV absorbing agents include homopolymers and copolymers of vinyl-functionalized monomer of benzotriazole, benzophenone, or benzophenolate. A process for preparing this novel plasticizer composition is also provided.

Abstract: A monomer composition is described, containing A) vinyl-containing monomers in which the vinyl bears a hetero-atom selected from the group consisting of the halogens, nitrogen, oxygen, sulfur or silicon, andB) at least one N-oxyl compound of a secondary amine which does not bear hydrogen on the .alpha.-carbons, in an amount effective as stabilizer against premature polymerization.

Abstract: A process for mass coloring high molecular weight organic material by using a pyrimidopteridine of formula I and/or II ##STR1## or a mixture thereof, wherein A, B, C and D are each independently of one another --NH.sub.2, --OH, hydrogen, C.sub.1 -C.sub.4 -alkyl; phenyl, biphenyl or naphthyl which are unsubstituted or substituted by halogen, --OH, --NH.sub.2, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; --NHR.sub.1, --N(R.sub.1).sub.2 or ##STR2## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl; phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 -alkoxy, or --COXR.sub.2,X is a direct bond, --O-- or --NH--, andR.sub.2 is C.sub.1 -C.sub.4 alkyl; phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 -alkoxy, with the proviso that at least two of the radicals A, B, C and D are --NH.sub.2 or --OH.

Abstract: Thermoplastic compositions containing certain anthraquinone polysulfonamide colorants incorporated therein as toners or colorants. The anthraquinone colorant moieties which are incorporated into the polymer chain of the polysulfonamide colorants are not leachable, sublimable or extractable and do not exude from the thermoplastic compositions. The anthraquinone polysulfonamide colorants may be added to the thermoplastic polymers during production or melt blended with the polymer by conventional techniques to produce transparent thermoplastic compositions useful for a variety of end uses where nonmigrating or nonextractable colorants are needed.

Abstract: Fluorinated imides useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae ##STR1## wherein R.sub.1 is F(CF.sub.2).sub.x --(CH.sub.2).sub.m, or F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5) (CH.sub.2)p wherein x is from about 4 to about 20, m is from about 2 to about 6, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.2 is a linear, branched or cyclic alkylene or poly(oxyalkylene) hydrocarbon group having from about 2 to about 15 carbons;R.sub.3 is selected from the group consisting of F(CF.sub.2).sub.x --(CH.sub.2).sub.m, F(CF.sub.2).sub.x --(CH.sub.2).sub.m --OC(O)--(CH.sub.2).sub.n, and F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5)(CH.sub.2).sub.p OC(O)(CH.sub.2).sub.n wherein x is from about 4 to about 20, m is from about 2 to about 6, n is about 2 to about 12, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.4 is an alkyl or alkenyl group of from about 4 to about 20 carbons, andR.sub.

Abstract: A radiation sensitive colored composition comprising (A) a copolymer having, as constitutional repeating units, at least ((1) a monofuctional macromonomer having the specified structure and weight-average molecular weight of 3.times.10.sup.4 or below, (2) a monomer having the specified structure and (3) a quaternary ammonium salt monomer; (B) a radiation sensitive compound; and (C) a pigment: which can provide a color filter having excellent pattern reproducibility because of its high suitablity for dispersion of fine-grain pigment and its high storage stability.

Abstract: Modifying agents for polyolefins improve the physical and/or optical properties of the polymers and have formula (I): ##STR1## and salts thereof, wherein X, Y, Z, R and R1 are as defined in the specification.

Abstract: A polymeric article, such as an extruded or molded article or a biaxially oriented tape or film, and a method of stabilizing such a polymeric article to protect the article from degradation due to exposure to UV light. The article is formed by blending a polymeric material with from about 50 to about 5,000 ppm of at least one ortho hydroxy tris-aryl triazine light absorber and from about 500 ppm to about 1.25 percent of at least one oligomeric, polymeric, or high molecular weight HALS having a molecular weight of at least about 500, wherein the weight ratio of HALS to triazine light absorber is from about 3:1 to about 20:1, to form a stabilized polymeric composition, and forming an extruded or molded article or a biaxially oriented tape or film from the stabilized polymeric composition.

Abstract: This invention relates to a durable gravure ink composed of a pigment with high weather resistance, a pigment with high alkali resistance, and a binder with high weather resistance and high alkali resistance, and a technique for producing a decorative material using this ink. According to this invention, a decorative material having a pattern layer excellent in both of weather resistance and alkali resistance is provided.

Abstract: The present invention provides novel condensed azo compounds using bisamide compounds of 2-hydroxynaphthalene-3,6-dicarboxylic acid, amide, or ester as the couplers, which have excellent properties such as excellent water resistance, chemical resistance, solvent resistance, and heat resistance.

Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a carboxyl functional polymer and an amide functional ultraviolet light absorbing compound, wherein the carboxyl functional polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polyolefin and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.

Abstract: The preparation and use of acrylic and fluoroacrylic polymers suitable for luminescence oxygen sensing applications are described. These materials can be used in luminophor coatings for optical fiber sensors or as coatings on aerodynamic surfaces for wind tunnel study. Compositions containing these polymers have the advantages of: (1) reduced induction effect; (2) subsecond response times; (3) low photodegradation; and (4) low temperature dependence.

Abstract: Describes a method of preparing a polymerizate by polymerizing a two-component organic composition comprising: a first component containing a polyfunctional reactant having two or more functional groups selected from isocyanate, isothiocyanate and combinations of isocyanate and isothiocyanate groups; and a second component containing a polythiol represented by the following general formula I, ##STR1## wherein R.sub.1 and R.sub.2 are each selected from the group consisting of straight or branched chain alkylene, e.g., methylene and ethylene, cyclic alkylene, phenylene and C.sub.1 -C.sub.9 alkyl substituted phenylene. The second component may also optionally contain a reactive hydrogen compound that is different than the polythiol of general formula I. Polymerizates prepared according to the present invention are useful as ophthalmic lenses and have a refractive index of at least 1.57, an Abbe number of at least 33 and an initial Barcol hardness of at least 1.

Abstract: Modifying agents for polyolefins improve the physical and/or optical properties of the polymers and have formula (I): ##STR1## and salts thereof, wherein X, Y, Z, R and R1 are as defined in the specification.

Abstract: A composition comprising a blend of a thermoplastic resin and at least one compound or oligomer which is ##STR1## wherein R.sub.f is a perfluorinated moiety which may contain one or more catenary ether oxygen atoms, Q is a linking group selected from alkylene groups having 1 or 2 carbon atoms, sulfonamido groups or combinations thereof, R is an alkyl group, R.sup.1 is a perfluoroalkyl group, R.sup.2 is an alkyl group which may be straight chain or branched and n is a number of from 2 to 40.

Abstract: A light conducting plate for back lighting which comprises a methacrylic copolymer resin comprising 90 to 99.5% by weight of a methyl methacrylate unit and 0.5 to 10% by weight of an alkyl acrylate unit containing 1 to 8 carbon atoms in the alkyl moiety thereof and having a reduced viscosity of 35 to 60 ml/g in chloroform, the chromaticity of said light conducting plate having x and y color coordinates both ranging from 0.01 to 0.001 as obtained according to JIS-Z-8701.

Abstract: The present invention provide an aqueous type pigment dispersing agent having one portion which has a high affinity with a pigment and which has at least one type of selected from the group consisting of an organic dye, anthraquinone and acridone and only at a terminal end or at both terminal ends of at least one aqueous polymer selected from an aqueous linear urethanic polymer and an aqueous linear acrylic polymer, a pigment composition using the same and a pigment dispersion. The portion having a high affinity with the pigment can be adsorbed efficiently on the surface of a pigment. At the same time, for example, a pigment, used for ink or paint can be dispersed stably due to the affinity between the polymer portion and a disperse medium to improve the adaptability in use and the quality of coating articles.

Abstract: An aryletherketone copolymer having repeating units of the formula: ##STR1## wherein the ratio m:n is in the range of 1:99 to 99:1; wherein Ar is selected from the group consisting of: ##STR2## and wherein Ar' is selected from the group consisting of ##STR3## wherein Q is --O--, --CH.sub.2 -- or --CO--, is useful in the dispersion of active NLO chromophores containing a basic functionality to form optically clear films.

Abstract: The silicone compositions, in particular silicone oils and crosslinkable silicone compositions, contain porphyrins as heat stabilizer.

Abstract: Process for the preparation of compounds of the general formula (I) ##STR1## by reaction of aromatic dicarboxylic acids of the formula (II) ##STR2## or anhydrides and/or esters thereof with aromatic diamines of the formula (III) ##STR3## wherein A and B have the meaning given in the description, characterized in that the reaction of (II) with (III) is carried out in a reaction medium which comprises water and a hydrotropic compound which has a dielectric constant .epsilon. of 20 to 60 at 25.degree. C.

Abstract: Colored thermoplastic resin composition comprising a transparent thermoplastic resin and a black dye contained therein, wherein said black dye is a black dye obtained by reaction of at least one anionic surfactant selected from the group consisting of(a) sulfuric acid ester-series surfactants,(b) phosphoric acid ester-series surfactants,(c) sulfonic acid-series surfactants and(d) carboxylic acid-series surfactants, and nigrosine.

Abstract: The present invention is related to the synthesis of a novel photochromic compound. This compound is a reactive photochromic spirooxazine pigment. Its structure is shown as below: ##STR1## wherein R.sub.1 is either a hydrogen atom or an alkyl group containing 1 to 5 carbon atoms. R.sub.2 and R.sub.3 are any of the following group: an alkyl group having 1 to 10 carbon atoms, or an alkyoxy group having 1 to 10 carbon atoms, or halogen atoms, or hydrogen atoms. The range of n is from 1 to 4, which represents the number of repeated units. This synthesized compound possesses a high thermal resistant property up to 241.degree. C., and it may be added into low melting polyethylene terephthalate(PET) resins for direct melt spinning to prepare photochromic fiber. In addition, the reactive double bond of this compound can be copolymerized with other vinyl monomers, to prepare high molecular weight photochromic materials used for photochromic eye glasses and/or photochromic coating.

Abstract: Compounds selected from the series consisting of the perylenecarboximide, quinacridone, isoindoline, indigoid, azo, benzodipyrrolone, benzodifuranone, furanofuran, pyrrolo?2,5-b!pyrrole and bianthraquinone chromophores containing at least one grouping of formula ##STR1## wherein each A may be N--CN or O, with the proviso that at least one A must be N--CN, X is --N(R)--, --O-- or --S--, R is hydrogen, C.sub.1 -C.sub.18 alkyl, unsubstituted or halogen- or C.sub.1 -C.sub.4 alkyl-substituted phenyl, benzyl or phenethyl, and m and n are each independently of the other 0 or 1.Depending on the nature of their substituents, these compounds can be used as polymer-soluble dyes or as pigments for coloring high molecular weight organic material. They are distinguished by a surprisingly high solid-state fluorescence.

Abstract: A thermoplastic molding composition which includes a thermoplastic polymer andA) a dye which is soluble therein, andB) a N,N-bis (2-hydroxyethyl )-C.sub.6 -C.sub.22 -alkylamine or N,N-bis (2-hydroxyethyl) -C.sub.6 -C.sub.22 -alkenylamine, this compound having a Hazen color number as specified in German Standards Specification DIN 53409 of below 300.

Abstract: A synergistic stabilizer composition for polymers is described containing (i) a hydroxy-group containing triazine, and (ii) a 2,2,6,6-tetraalkyl piperidine compound. Also, described is a method of stabilizing polymers.

Abstract: Organic ophthalmic articles are photochromic and have high indices of refraction.