Abstract: An inkjet method for producing a solder mask in the manufacture of a Printed Circuit Board uses a solder mask inkjet ink containing a polymerizable adhesion promoter and a phenolic compound including at least two phenolic groups. A high quality solder mask withstanding the high thermal stress during the soldering process while maintaining excellent physical properties is produced.

Abstract: An inkjet method for producing a solder mask in the manufacture of a Printed Circuit Board uses a solder mask inkjet ink containing at least one photo-initiator, at least one free radical polymerizable compound and at least one RAFT compound as adhesion promoter. A high quality solder mask withstanding the high thermal stress during the soldering process while maintaining excellent physical properties is produced.

Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier, and a dispersion-stabilizing compound according to Formulae I, II, III or IV, wherein Q represents the necessary atoms to form a substituted or unsubstituted a five or six membered heteroaromatic ring; M is selected from the group consisting of a proton, a monovalent cationic group and an acyl group; R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl or heteroaryl group, a hydroxyl group, a thioether, an ether, an ester, an amide, an amine, a halogen, a ketone and an aldehyde, R1 and R2 may represent the necessary atoms to form a five to seven membered ring; R3 to R5 are independently selected from the group consisting of a hydrogen, a

Abstract: A lithographic printing plate precursor includes, on a support, a layer of graphite oxide capable of switching from a hydrophilic state into a hydrophobic state upon exposure to heat and/or light.

Abstract: A radiation curable composition for preparing a polymeric membrane includes a) a membrane polymer selected from the group consisting of a polysulfone (PSU), a polyether sulfone (PES), a polyether etherketone (PEEK), a polyvinylchloride (PVC), a polyacrylonitrile (PAN), a polyvinylidene fluoride (PVDF), a polyimide (PI), a polyamide (PA) and copolymers thereof; b) a hydrophobic monomer or oligomer having at least two free radical polymerizable groups independently selected from the group consisting of an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene group, a vinyl ether group, a vinyl ester group, a maleate group, a fumarate group, an itaconate group, and a maleimide group; and c) an organic solvent for the membrane polymer and the hydrophobic monomer. A polymeric membrane and a method for manufacturing the membrane are also disclosed.

Abstract: A laser markable composition includes (a) an aqueous medium; (b) capsules composed of a polymeric shell surrounding a core; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that the core of the capsule contains a leuco dye.

Abstract: A color laser markable composition includes at least a first and a second Diffusion Hindered Molecular Assembly (DHMA), each including a leuco dye and, respectively, a first and second sensitizer. With the laser markable composition, at least two different colors may be formed in a single layer.

Abstract: A security article includes a laser markable layer and a transparent outer layer or sheet having lenticular lenses on its outer surface, both provided, in this order, on an opaque core support, characterized in that the laser markable layer has a dry layer thickness of less than 50 ?m. An improved contrast is obtained between interlaced images exposed into the security article of the invention.

Abstract: A method of producing a security document includes the steps of producing a first part of a color image by color laser marking a security document precursor; and producing a second part of the color image by a second imaging technique different from laser marking. The resulting security document is more difficult to falsify.

Abstract: A method for making a composite membrane includes the steps of coating a first layer of ionomer on an intermediate support, laminating a dry porous support into the wet first layer of ionomer, impregnating the porous support with ionomer from the coated ionomer layer, optionally drying the impregnated porous support and the first layer of ionomer, coating a second layer of ionomer on the impregnated porous support, drying the second layer of ionomer until most of the solvent is evaporated, and delaminating the composite membrane from the intermediate support. The composite membrane thus obtained includes a porous support impregnated with the ionomer and on each side of the impregnated support a dense ionomer layer.

Abstract: A laser markable material includes a laser markable layer, present as a self-supporting layer or as a layer on a support, the laser markable layer including an infrared absorbing dye and an infrared absorbing pigment, characterized in that the amount of the infrared absorbing pigment is between 10 ppm and 1000 ppm relative to the total dry weight of the laser markable layer.

Abstract: A color laser markable article includes at least a first and a second laser markable layer including, respectively, a first infrared dye IR-1 having an absorption maximum in the infrared region ?max(IR-1) and a second infrared dye IR-2 having an absorption maximum in the infrared region ?max(IR-2), characterized in that the color laser markable layers further include a Diffusion Hindered Molecular Assembly (DHMA) which contains a leuco dye.

Abstract: A laser markable composition includes (a) an aqueous medium; (b) a leuco dye; (c) an optothermal converting agent; and (d) a color developing agent, characterized in that the color developing agent is a polymer particle capable of forming an acid upon exposure to heat.

Abstract: A laser markable composition includes (a) an aqueous medium; (b) polymeric particles dispersed in the aqueous medium; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that a leuco dye is covalently bonded to the polymeric particles.

Abstract: A backsheet for a photovoltaic module includes a support and a weather resistant layer, the weather resistant layer including a binder containing a crosslinkable group, an isocyanate crosslinking agent, and a catalyst that improves the crosslinking of the binder, wherein the catalyst is a zinc based catalyst or a bismuth based catalyst.

Abstract: A method of manufacturing conductive patterns includes the steps of a) printing and curing UV curable inkjet to define a cured inkjet ink pattern on a metal sheet bonded to a non-conductive substrate; b) etching the metal sheet not covered by the cured ink pattern to expose the non-conductive substrate; and c) applying an alkaline solution to dissolve the cured inkjet ink pattern within 5 minutes.

Abstract: An aqueous inkjet ink for forming a colour upon heat treatment includes a) an immobilized leuco dye; b) a colour developing agent or colour developing agent precursor; and c) optionally an opthothermal converting agent; wherein the leuco dye is immobilized by being covalently bonded to polymeric particles or by being included in the core of capsules composed of a polymeric shell surrounding a core.

Abstract: A laser markable composition includes (a) an aqueous medium; (b) capsules composed of a polymeric shell surrounding a core; (c) a colour developing agent or colour developing agent precursor; and (d) an optothermal converting agent; characterized in that the core of the capsule contains a leuco dye.

Abstract: A colour laser markable article includes at least a first and a second laser markable layer including, respectively, a first infrared dye IR-1 having an absorption maximum in the infrared region ?max(IR-1) and a second infrared dye IR-2 having an absorption maximum in the infrared region ?max(IR-2), characterized in that the colour laser markable layers further include a Diffusion Hindered Molecular Assembly (DHMA) which contains a leuco dye.

Abstract: A backsheet for a photovoltaic module includes a support and a primer provided on a side of the support facing a sealing layer, the primer including an acrylic resin and a crosslinking agent, characterized in that the acrylic resin is a copolymer including at least 5 wt % of an acrylate monomer unit containing a UV absorbing group and at least 2 wt % of an acrylate monomer unit containing a crosslinkable group both relative to the total weight of monomer units.