Abstract: There is disclosed a method for processing a silver halide color photographic material having, on a support, at least one photosensitive silver halide emulsion layer, which comprises processing after exposure to light said silver halide color photographic material, wherein the silver halide in said emulsion layer contains 90 mol % or more of silver chloride, and said photographic material has a white pigment-containing hydrophilic colloid layer coated on the support, the coating amount of the white pigment being 2 g/m.sup.2 or more, with a color developer containing chloride ions in an amount of 0.04 to 0.25 mol/l.

Abstract: Laser marking of pigmented fluoropolymer substrates is enhanced by using titanium dioxide pigment coated with organo silane.

Abstract: Disclosed is a process for producing a titanium dioxide pigment used for a resin-coated paper type photographic support, comprising the following steps:(a) a step of adding at least one alkaline earth metal compound in an amount of 0.01-2.0% by weight in terms of a metal oxide based on the titanium dioxide before calcination step and(b) an acid-washing step of washing the titanium dioxide at acidic state after the calcination step and before a step of surface treatment with a hydrated metal oxide,and wherein particle size of the titanium dioxide pigment is 0.110-0.150 .mu.m shown by number-average diameter obtained by measuring the diameter in a certain direction using an electron microscope. A photographic support which comprises the above titanium dioxide pigment is also disclosed. Occurrence of die lip stain and microgrit are substantially reduced in the photographic support and a photographic material made thereof exhibits improved image sharpness.

Abstract: A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide, adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin, or a silicon based polymer or cement. Furthermore, a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.

Abstract: Laser-marks (such as indicia, characters, symbols, patterns and the like) of exceptionally clear and thambiguous quality may be inscribed on the surface of an article whose surface region to be laser-marked is formed of a thermoplastic resin composition having a critical oxygen index of 22% or above as determined by ASTM D2863. The entire article may be formed (molded of such a thermoplastic resin composition, or the article may include a non-thermoplastic core having a surface layer thereof of the thermoplastic resin composition. Preferably, the thermoplastic resin composition is a polybutylene terephthalate with one or more flame retardants which impart the requisite critical oxygen index thereto.

Abstract: A highly stable photopolymerizable composition which is highly photosensitive to visible light, which can be hardened using a visible light laser, such as an argon laser, which provides excellent contrast between non-irradiated portions and the substrate under red light, and, moreover, which provides excellent contrast between the portions irradiated by the laser and the portions not irradiated. The photopolymerizable composition consists of 100 parts by weight of a resin which is hardenable under visible light having an irradiation energy mainly consisting of light rays in the 400 nm to 700 nm visible light region; 0.02 to 0.5 parts by weight of at least one dye selected from the group consisting of Victoria Pure Blue, anthraquinone dyes, monoazo dyes, and merocyanine dyes, these dyes having maximum absorption wavelengths from 550 to 700 nm; 0.1 to 5 parts by weight of the leuco dye 4,4'-(phenylmethylene bis[N,N-diethylbenzene amine]; and 0.1 to 5 parts by weight of tribromomethylphenyl sulphone.

Abstract: Titanocenes of the formula I ##STR1## in which R.sup.1 are cyclopentadienyl.sup..crclbar. groups and R.sup.2 and R.sup.3 are aromatic radicals which are substituted in both ortho-positions by fluorine and, in addition, are substituted by an acyloxy group are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds.

Abstract: There is disclosed a method for forming a dye image which comprises a step of processing, with a color developing solution, a photo-sensitive silver halide photographic material comprising a support having thereon a silver halide emulsion layer. The method is characterized in that said silver halide emulsion layer comprises silver halide grains having a silver chloride content of not less than 90 mol. %; said photosensitive silver halide photographic material comprises a white pigment in an amount of not less than 3.5 g per m.sup.2 of said photographic material; and said photosensitive silver halide photographic material is, after being processed with the color developing solution, processed with a bleaching solution (BL-1) and subsequently with a fixing solution.

Abstract: A process of radiation-induced formation of a uniform metal or metal oxide region suitable for device application or for repairing transparent defects in pattern metal films of lithographic masks has been found. The process requires that the heat evolved during the radiation-induced reactions be carefully limited to produce the desired uniformity.

Abstract: Titanocenes of the formula I ##STR1## in which R.sup.1 are cyclopentadienyl.sup..crclbar. groups and R.sup.2 and R.sup.3 are aromatic radicals which are substituted in both ortho-positions by fluorine and, in addition, are substituted by an acyloxy group are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds.

Abstract: A silver halide color photographic material comprising a reflective support comprising a support base material coated with a waterproof resin layer, and at least one silver halide emulsion layer thereon, wherein at least one silver halide emulsion layer thereon comprises silver halide grains containing at least 90 mol % silver chloride, having a silver bromide-rich region near at least one apex of the silver halide grain, and having a mean bromide content at the surface of the grain of not more than 15 mol %, wherein the waterproof resin layer having the silver halide emulsion layer thereon contains titanium oxide in an amount of 14% or more by weight; and further the optical reflection density of the photographic material at 680 nm is not lower than 0.70.

Abstract: A laser-markable cable, in particular an optical fiber cable, having an outer protective layer of varnish comprising an outer layer (14) provided with a pigment and sublimable by means of a first type of laser, and an inner underlayer (13) of a contrasting color relative to that of the outer layer. The cable is characterized by the fact that said outer layer (14) is also modifiable in color by a second type of laser without being destroyed in thickness, thereby providing a second possible method of marking.

Abstract: Titanocenes containing two 5-membered cyclodienyl groups, for example cyclopentadienyl, and one or two 6-membered carbocyclic or 5- or 6-membered heterocyclic aromatic rings which are substituted by a fluorine atom in at least one of the two ortho-positions to the titanium-carbon bond and contain, as a further substituent, unsubstituted or substituted 1-pyrryl, are suitable as photoinitiators for radiation-induced polymerization of ethylenically unsaturated compounds.

Abstract: A visible radiation sensitive composition comprising:(A) a photosetting resin containing a photosensitive group capable of crosslinking or polymerizing by photoirradiation,(B) a sensitizer represented by the formula (i): ##STR1## wherein R.sub.1 and R.sub.2 are the same or different lower alkyl, and R.sub.3 is a hydrogen atom, lower alkyl group, alkoxyalkyl group, hydroxyalkoxyalkyl group or alkoxycarbonylalkyl group, and(C) a polymerization initiator.

Abstract: A laser-marking composition characterized by containing a non-black inorganic lead compound and a resin and a laser-marking method characterized by marking the surface of an object comprising said composition by exposure to laser beams having wavelengths falling in the far infrared regions.

Abstract: Titanocenes with, for example, .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine in at least one of the two ortho-positions relative to the metal-carbon bond and being substituted by at least one free or etherified or esterified polyoxaalkylene radical, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates.

Abstract: A method of laser marking ceramic materials, glazes, glass ceramics and glasses of any desired form, which comprises applying to the material to be marked a 100 to 10,000 .ANG. thick transparent layer of titanium dioxide, then irradiating said oxide layer with a pulsed laser such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using laser light of a wavelength which is sufficiently absorbed by the oxide layer, so that a discolouration of said oxide layer is produced at the irradiated areas.

Abstract: Titanocenes containing two 5-membered cyclodienyl gropus, for example cyclopentadienyl, and one or two 6-membered carbocyclic or 5- or 6-membered heterocyclic aromatic rings which are substituted by a fluorine atom in at least one of the two ortho-positions to the titanium-carbon bond and contain, as further substituents, a substituted amino radical, are suitable as photoinitiators for radiation-induced polymerization of ethylenically unsaturated compounds.

Abstract: The present invention relates to compositions comprising(a) a titanocene photoinitiator of the formula I ##STR1## (b) a 3-ketocoumarin of the formula II ##STR2## in which both R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1, R.sup.4 is a radical of the formula V ##STR3## R.sup.5 is C.sub.1 -C.sub.20 alkyl, cycloalkyl having 5-7 ring carbon atoms, phenyl or naphthyl which are unsubstituted or substituted by one to three C.sub.1 -C.sub.6 alkyl groups, C.sub.1 -C.sub.6 alkoxy groups or halogen atoms or by one diphenylamino or C.sub.1 -C.sub.6 dialkylamino group, or is C.sub.7 -C.sub.9 aralkyl, a radical --(CH.dbd.CH).sub.a --C.sub.6 H.sub.5 or a radical of the formula V, a is 1 or 2, preferably 1, and R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 independently of one another are hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, phenyl, tolyl, xylyl or benzyl, and R.sup.11 can additionally also be a group --NR.sup.15 R.sup.16 or --OR.sup.15, wherein R.sup.15 and R.sup.

Abstract: Titanocenes containing two 5-membered cyclodienyl groups, for example cyclopentadienyl, and one or two 6-membered carbocyclic or 5- or 6-membered heterocyclic aromatic rings which are substituted by a fluorine atom in at least one of the two ortho-positions to the titanium-carbon bond and contain, as a further substituent, unsubstituted or substituted 1-pyrryl, are suitable as photoinitiators for radiation-induced polymerization of ethylenically unsaturated compounds.

Abstract: A thermally-transferred color filter array element comprising a transparent support having thereon a thermally-transparent image comprising a repeating mosaic pattern of colorants in a receiving layer, one of the colorants being a mixture of a yellow dye and a cyan dye to form a green hue, said yellow dye having the formula: ##STR1## wherein: R.sup.1 and R.sup.2 represents hydrogen, alkyl, cycloalkyl, aryl or hetaryl; or can be taken together to form a 5- or 6-membered ring; or either or both of R.sup.1 and R.sup.2 can be joined to a carbon atom of the aromatic ring to form a 5- or 6-membered ring;R.sup.3 represents hydrogen or halogen:Y represents hydrogen, halogen, cyano, alkyl, alkoxy, aryl, hetaryl, aryloxy, acylamido, alkylsulfonamido, or arylsulfonamido; andn is a positive integer from 1 to 5; andsaid cyan dye having the formula: ##STR2## wherein R.sup.4 R.sup.5 represents hydrogen, alkyl, cycloalkyl, aryl or hetaryl;R.sup.6 represents hydrogen, alkyl or alkoxy;R.sup.5 may be taken together with R.sup.

Abstract: Titanocenes with, for example, .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine in at least one of the two ortho-positions relative to the matal-carbon bond and being substituted by at least one free or etherified or esterified polyoxaalkylene radical, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates.

Abstract: Titanocenes with silylated .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine, --CF.sub.3, --C.sub.2 F.sub.5, --CF.sub.2 CL or --CF.sub.2 CH.sub.3 in at least one of the two ortho-positions relative to the metal-carbon bonds, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates. They are distinguished by a high sensitivity, stability to air and the action of heat, and a high activity in the region of UV light to visible light. They are furthermore readily soluble in the photopolymerizable compositions.

Abstract: A super-high contrast negative type silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, said emulsion layer or layers or other hydrophilic colloidal layer or layers containing a hydrazine derivative, wherein said photographic material further contains a compound selected from reductones and at least one compound represented by formula (I) or (II) ##STR1## wherein X.sub.1 represents a halogen atom, an N-methylolamino group, or a glycidoxy group; Y.sub.1 and Z.sub.1 each represents a hydrogen atom, a halogen atom, a hydroxyl group, --OM (wherein M represents an alkali metal ion), a substituted or unsubstituted amino group, an alkyl ether group, a phenyl ether group, an alkyl thioether group, a phenyl thioether group, a sulfonamide group, or an alkylsulfonamide group.

Abstract: There is disclosed a mask for X-ray lithography wherein a peroxopolytungsten compound is used as an absorber, and a process for producing the same. Since this compound has a sensitivity for electron beams and light and serves as an absorber for X-rays, a mask for X-ray lithorgraphy is made only by applying this compound to a substrate, exposing the same to light to form a transferred pattern, and effecting development. Thus, the step of etching the absorber which is essential in the conventional process, is not needed. Therefore, masks having a highly accurate pattern and few defects can be produced with a high production yield.

Abstract: Titanocenes with .pi.-cyclopentadienyl ligands, in which one or two carbocyclic or heterocyclic aromatic rings are bonded to the metal, the aromatic rings being substituted in at least one of the two ortho-positions relative to the metal-carbon bonds by CF.sub.2 Z (Z=F or substituted or unsubstituted alkyl), are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds. They are distinguished by a high radiation sensitivity, stability to air and thermal effects, and high effectiveness in the range from UV light to visible light.

Abstract: An identification card, in particular an all-plastic indentification card, written on by means of a laser, having user-related and user-neutral data such as a name, account number, etc. present on the surface of the indentification card in the form of local discolorations of the identification card material without any transition. Due to a local increase in tensile strength, these decolorized areas have greater resistance to mechanical changes and/or chemical solvents than the surrounding areas of the identification card made of the same identification card material. Thus attempted falsification by means of mechanical and chemical means is prevented in an especially effective way, since such attempts lead to destruction of the identification card in each case.

Abstract: The invention relates to photopolymerizable compositions comprising (a) a prepolymer containing photopolymerizable olefinic double bonds, (b) photoinitiator of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1, and optionally (c) an ester of acrylic or methacrylic acid or an allyl ether or allyl ester of a polyol.Owing to their excellent light sensitivity, these compositions are suitable for the economic production of high temperature resistant protective layers and relief structures having excellent resolution and good contours.

Abstract: A marking transfer sheet comprising an imaging layer of pigment, binder and a color-forming, radiation-sensitive component on a carrier film and a process for its use comprising exposing the imaging layer to a pattern of radiation to form a mark, heating the imaging layer until adhesive, and contacting the imaging layer with a support more adherent to the imaging layer than the carrier film; and optionally separating the carrier film from the imaging layer.