Abstract: The invention relates to &agr;-ammonium alkenes, iminium alkenes and amidinium alkenes in the form of their tetraaryl- or triaryl-alkylborate salts that can be converted photochemically into amines, imines or amidines, and to a process for the preparation thereof. The invention relates also to compositions polymerisable or crosslinkable under basic conditions comprising such &agr;-ammonium alkenes, iminium alkenes or amidinium alkenes in the form of their tetra- or tri-arylalkylborate salts, to a method of carrying out photochemically induced, base-catalysed reactions, and to the use of such compounds as photoinitiators for base-catalysed reactions.

Abstract: A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram.

Abstract: There is provided an active energy beam curable composition, which is useful for forming a solder resist film for a printed wiring board, which can be developed through an ultraviolet exposure and a dilute alkali aqueous solution, and is excel lent in heat resistance, adhesivity and chemical resistance. There is also proposed a printed wiring board provided with a cured film of such an active energy beam curable composition. This composition is featured in that it comprises not only an active energy beam curable vinyl copolymer modified resin wherein an epoxy compound having an ethylenic unsaturated group is added to a copolymer comprising styrene, (metha)acrylic acid, and, as an optional component, (metha)acrylate; but also an active energy beam curable bisphenol type epoxyacrylate resin.

Abstract: A photopolymerizable composition which is capable of successfully ensuring both high sensitivity and excellent storage stability is provided as a radical photopolymerization-system composition which is highest in the sensitivity and very promising out of the image-forming techniques. The photopolymerizable composition comprises a polymerizable group-containing compound having a specific structure set forth below wherein X1 and X2 each independently represent a group containing a hetero atom wherein the hetero atom is in the &agr;-position or a halogen atom and a photopolymerization initiator.

Abstract: There are disclosed a frost-coating composition, which comprises (i) a hydrophobic silica particle or further comprises (ii) a polymer particle, in addition to a photocurable compound; and a frosted glass container coated with such a composition. The frosted glass container coated with such a composition is excellent in alkali resistance, or excellent both in alkali resistance and in impact resistance.

Abstract: This invention aims to make it possible to obtain curing surfaces with different surface free energies, and to provide a method of curing an ionizing radiation curing resin composition which can be used as a coating material. Further, it aims to provide a surface modification method which permits surfaces of different surface free energy to be obtained. The above object is achieved by a method of curing a mixture comprising an ionizing radiation curing resin, characterized in that at least part of a mixture comprising 0.01-10 weight parts of a compound (b) having a surface free energy not exceeding 25 mN/m relative to 100 weight parts of an ionizing radiation curing resin composition (a) having a surface free energy of at least 30 mN/m, is cured by irradiating it with ionizing radiation in contact with a medium having a surface free energy higher than that of the ionizing radiation curing resin composition (a).

Abstract: A photocurable composition is provided which can be produced and cured by both free-radical and cationic polymerization modes, which provides a sufficient length of open time to be bonded to an adherend, and which exhibts a good adhesive property. A photocurable composition containing a compound (A) having at least one free-radically polymerizable unsaturated bond in a molecule, a compound (B) having at least one epoxy group in a molecule, a free-radical polymerization catalyst (C), a cationic polymerization catalyst (D) and a compound (E) represented by the following formula (1).

Abstract: Methods, systems, and compositions that make it possible to form high resolution, pressure sensitive adhesive patterns or films on a wide range of substrates. The compositions generally incorporate a curable, fluid composition (i.e., pressure sensitive adhesive precursor). When cured, a pressure sensitive adhesive is formed. Ink jet printing and subsequent curing allows pressure sensitive adhesive features to be formed with high resolution and tremendous flexibility in the patterns by which adhesive features may be formed. Preferred embodiments of the invention incorporate rheology modifying agents that can be used to promote favorable dot gain and other printing characteristics, the ability to build print thickness, and mechanical properties of resultant cured adhesives.

Abstract: Disclosed are thermally-stable, colored, photopolymerizable compounds containing a vinyl group which are capable of being copolymerized with reactive vinyl monomers to produce colored compositions such as polyacrylates, polymethacrylates, polystyrene, etc. The compounds exhibit good thermal stability, fastness (stability) to UV-light, good solubility in the reactive monomers and good color strength.

Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.

Abstract: Graft copolymers with low molecular weight side chains are prepared by (1) irradiating a propylene polymer material in the absence of oxygen, (2) adding a controlled amount of oxygen to the irradiated polymer material so that the polymer is exposed to an amount of oxygen greater than 0.004% but less than 15% by volume at a temperature of 40° C. to 140° C., to produce an oxidized propylene polymer material containing greater than 1 mmol total peroxide per kilogram of propylene polymer material, (3) optionally, heating the oxidized propylene polymer material in a non-oxidizing atmosphere to a temperature of at least 80° C.

Abstract: A curable composition comprising a compound (A) having at least one active energy ray curable polymerizable functional group, a fluorine-containing copolymer (B) obtained by (1) copolymerizing a polymerizable monomer (a) having a polyfluoroalkyl group and a polymerizable monomer (b) having a photo-curable functional group, or (2) introducing a photo-curable functional group into a fluorine-containing copolymer (D) obtained by copolymerizing a polymerizable monomer (a) having a polyfluoroalkyl group and a polymerizable monomer (d) having a group capable of introducing a photo-curable functional group, and a photopolymerization initiator.

Abstract: A method of preparing fiber reinforced acrylic thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in high molecular weight solid acrylic resin in the form of large particles. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: An energy-curable polymer-forming composition for making a pressure sensitive adhesive includes an unsaturated oligomer resin and an adhesive promoter which increases the peel strength of the adhesive without reducing its tack. The composition also includes a tackifier and various other optional components such as photoinitiator, chain extender, reactive diluent and the like.

Abstract: Curable compositions that are particularly suitable for coating plastic ophthalmic lenses includes (a) 20% to 80% of a first acrylated aliphatic urethane; (b) 5% to 50% of a monofunctional acrylate; (c) (i) 2% to 30% of a second acrylated aliphatic urethane or (ii) 2% or 25% of a multifunctional acrylate or (iii) a combination of (i) and (ii); (d) 1% to 30% of a colloidal metal oxide; (e) 1% to 20% of a photoinitiator; and (f) a solvent, with the percentages based on weight. The cured composition provides superior abrasion and impact resistance as well as protection against environmental and chemical agents. In addition, the UV curable compositions are capable of forming films on various substrates; the film has excellent compatibility and adhesion to AR coatings that are applied thereon. No primer coating is required.

Abstract: This invention is directed to a process for the rapid in-situ curing of polymerizable materials to provide macromolecular networks and articles of manufacture that are “morphology-trapped”; that is, they exhibit a fixed phase morphology and/or molecular orientation that is locked in by the curing step. The process includes the steps of mixing together a dead polymer, a reactive plasticizer and an initiator to give a polymerizable composition; further processing the mixture in order to achieve a desired phase morphology and/or molecular orientation of the polymeric constituents; shaping the polymerizable composition into a desired geometry; and exposing the polymerizable composition to a source of polymerizing energy, without mixing, to give a final product with the desired phase morphology and/or molecular orientation locked in place.

Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.

Abstract: An easy adhesion film for a transparent conductive thin film comprises a transparent polymer film and an easy adhesion layer formed on the transparent polymer film, wherein the easy adhesion layer comprises at least an ionizing radiation curable resin binder, a (meth)acrylate copolymer binder and polymethyl methacrylate resin particles. The easy adhesion film has high durability, transparency and anti-Newton ring property when provided with a transparent conductive thin film.

Abstract: Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.

Abstract: A method for manufacturing a fuel hose which can efficiently produce heat-resistant and flexible fuel hoses.

Abstract: The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the attachment of biomolecules, as well as biomolecules comprising one or more reactive sites for attachment to solid supports and polymer hydrogels. The invention further provides novel compositions and methods for the preparation of biomolecules, solid supports, and polymer hydrogels comprising reactive sites. The invention also provides for preparation of crosslinked solid supports, polymer hydrogels, and hydrogel arrays, wherein one or more biomolecules is attached by means of the reactive sites in a photocycloaddition reaction. Advantageously, according to the invention, crosslinking of the hydrogel and attachment of biomolecules can be done in a single step.

Abstract: A radiation-curable, optical fiber coating composition has enhanced color stabilization and is formulated from a composition containing at least one radiation-curable oligomer or monomer. A concentration of urethane and ether linkages in the radiation-curable composition is such that a cured optical fiber coating formed from said radiation-curable composition exhibits a &Dgr;E of about 40 or less after being exposed for 96 hours to 150° C. and then for 144 hours to 180° C. Also provided is a radiation-curable optical fiber coating composition which is substantially urethane-free.

Abstract: The present invention relates to an acrylic pressure-sensitive adhesive double coated tape or sheet, an acrylic non-substrate pressure-sensitive adhesive transfer tape or sheet, and a method for manufacturing the same. The acrylic pressure-sensitive adhesive double coated tape or sheet and the acrylic non-substrate pressure-sensitive adhesive transfer tape or sheet are manufactured by the use of a light-cured adhesive whose main components are a (metha)alkyl ester acrylate monomer, a polar functional group containing monomer, an acrylic polymer having a photo-active functional group, and photopolymerization initiating agent, wherein the acrylic polymer having a photo-active functional group has a weight average molecular weight of 200,000 to 3,000,000 and the content of the photo-active functional group of 0.001 milli-equivalent/g to 0.5 milli-equivalent/g.

Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable preferably, melt-processable resin containing an epoxy resin, an ethylene-vinyl acetate copolymer, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The above binder precursors of the invention are preferably free of homopolymers and copolymers of olefinic monomers. In another aspect, the invention also describes an energy curable first binder precursor containing an epoxy resin, an ethylene-vinyl acetate copolymer, a polyfunctional acrylate component and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated backing material.

Abstract: A radiation-curable composition for optical fiber coatings comprising about 10 wt. % to about 90 wt. % of at least one radiation-curable oligomer (A), about 10 wt. % to about 90 wt. % of at least one radiation-curable monomer diluent (B), and an effective amount of at least one photoinitiator (C) represented by formula (1): wherein Ar1 to Ar3 are aromatic groups which may have one or more substitution groups.

Abstract: A UV-curable acrylate base adhesive composition for digital versatile discs and other substrates, a method for bonding verstile digital disc layers together with a UV-curable adhesive, and a digital versatile disc bonded by a UV-curable or a radiation curable adhesive. The adhesive comprises acrylate functional components, non-acrylate reactive diluents (e.g. having acrylamide, or N-vinyl functionality) and thiol compounds.

Abstract: The invention relates to a liquid curable resin composition comprising: (A) a polyfunctional (meth)acrylic compound containing at least three (meth)acryloyl groups in the molecule, (B) a reaction product of an alkoxy silane compound having a polymerizable unsaturated group, an urethane bond group, and an organic group represented by the following formula (1), wherein X is NH—, —O—, or —S— and Y is an oxygen atom or a sulfur atom, and when X is —O—, Y is a sulfur atom, with silica particles, (C) a radiation curable acrylic resin comprising a carboxyl group in its molecule, of which the Tg is 50 or higher, (D) a radiation polymerization initiator, and (E) a non reactive solvent. The invention further relates to the coating obtained after evaporation of the solvent, and to the cured coating after irradiation.

Abstract: A radiation-curable composition in a liquid or solid form comprises at least one solid, non-crystalline radiation-transmissible material, dispersed in at least one cationic-curable or free-radical curable composition or mixture thereof. The solid, non-crystalline radiation-transmissible materials comprise glasses and other suitable materials that transmit (i.e., are transparent to) at least about 40% of radiation having a wavelength from about 180 to about 600 nanometers. The solid forms of the radiation-curable compositions of the invention are useful as powder coatings for coating decorative and functional objects and that would be cured by a thermal heating flow process followed by radiation exposure. The cured compositions of the invention are useful as coatings and inks for metal, paper, plastics, glass, ceramics, and wood, as adhesives, as sealants, and as composite materials and other articles and in biomedical and dental applications.

Abstract: A manufacturing method comprising the steps of forming at first solidified wax layer of a desired shape, depositing onto the first solidified wax layer at least one layer of a liquid resin formulation, solidifying the layer of liquid resin formulation, depositing a second wax layer on to the combination of the first solidified wax layer and the layer of solidified resin formulation, solidifying the second wax layer, and separating the solidified resin formulation from first and second wax layers. Preferably, the resin formulation comprises at least one monofunctional water soluble vinyl or acrylic monomer in combination with a low molecular weight aliphatic polymer having acrylic or methacrylic acid functionality. The solidified wax and resin formulation layers can be machined as may be desired to form mold of a given shape comprising wax layers when the layer of formulation is separated from the wax layers.

Abstract: A method of reducing the flow viscosity of a polyacrylate composition, which comprises adding

Abstract: The present invention relates to radiation curable compositions comprising at least one metallocene polyolefin. The radiation curable compositions are useful for a variety of applications, particularly as coatings and adhesives. The radiation curable composition may comprise a single metallocene polyolefin, or blend thereof. The ultraviolet curable compositions further comprise at least one photoinitiator and/or at least one photoinduced coupling agent. For pressure sensitive adhesive applications, the radiation curable composition also preferably comprises other ingredients such as a tackifying resins and plasticizers.

Abstract: The present invention relates to a photo-curable polymer composition comprising (a) a first block copolymer comprising at least two blocks A of polymerised monovinyl aromatic monomer, at least one internal block B of polymerised conjugated diene monomer, and at least one tapered or random block C of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer and/or at least one block D which may be a block of polymerised conjugated diene monomer or a tapered or random block of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer, wherein block C is an internal polymer block adjacent a terminal block A or an internal block A which is adjacent to a terminal block D, and block D is a terminal block adjacent an internal block A, and, optionally, a residue of a coupling agent, wherein the residue, if present, is derived from a coupling agent containing alkoxy or epoxy functional groups; and (b) a photo-initiator.

Abstract: The present invention relates to radiation-curable compositions that after cure provide reduced discoloration, or reduced color degradation, and/or high elongation while maintaining other desirable qualities of radiation-cured compositions. These radiation-curable compositions include at least one radiation-curable oligomer and at least one transesterified and/or high-purity monomer. These compositions can be formulated, for example, to serve as protective coatings for substrates manufactured from a wide variety of including glass, plastic, ceramic, metal and wood. The compositions of the present invention are preferably designed for use as an optical fiber coating (including inner primary and, colored or uncolored, outer primary coatings as well as other coatings which include inks, matrix materials and the like) or related optical fiber protective materials.

Abstract: A barrier rib for an EL display element. The rib is formed from the radiation sensitive resin composition containing (A) an alkali soluble resin, (B) a polymerizable compound having an ethylenically unsaturated bond, and (C) a radiation sensitive polymerization initiator.

Abstract: A liquid curable resin composition comprising (1) a (meth)acrylate polymer having a weight average molecular weight relative to polystyrene standard of at least about 5,000, (2) a ring-opening polymerizable monomer containing at least one epoxy group, and (3) a cationic photopolymerization initiator is disclosed. The composition produces cured products which exhibit superior heat resistance, excellent mechanical strength, and superb adhesive characteristics, and is suitable for use as a photo-curable adhesive, a photo-curable sealing material, a resin for optical three-dimensional molding, and a coating material for optical fibers, and optical fiber ribbon matrix.

Abstract: This invention provides an improved coating composition for glass substrates that comprises a tetrasubstituted compound. The introduction of a tetrasubstituted compound in a coating composition for a glass substrate, and in particular an optical fiber, acts to delay the rate of deterioration of the glass or optical fiber due to moisture, and improves adhesion between the glass substrate and the coating composition. The introduction of a tetrasubtituted compound into a polymeric coating composition also improves the interlayer adhesion when more than one coating is applied to a glass substrate. This invention further relates to an outer primary coating composition or matrix material that comprises an acid functional ethylenically unsaturated monomer.

Abstract: A photopolymerizable composition comprising (A) 100 parts by weight of a mixture of (meth)acrylic acid ester monomers, (B) from 0.1 to 5 parts by weight of a surfactant having a perfluoroalkyl group and represented by the general formula (1) CF3(CF2)nAM  (1) wherein A represents —CO2— or —SO3—, M represents an alkali metal, and n is an integer of 3 to 9, and (C) from 0.2 to 10 parts by weight of a photopolymerization initiator, and a plastic optical disk provided with a cured coating of the photopolymerizable composition on at least one side thereof.

Abstract: A method of increasing the adhesion of a photopolymerizable composition and the photopolymerized composition formed therefrom, which method comprises the step of adding an adhesion promoter, which consists essentially of a polycarboxylic acid having three to six carbon atoms, to the photopolymerizable composition.

Abstract: The present invention relates to a photocurable liquid resin composition comprising: (A) a cationically polymerizable organic compound; (B) a cationic photopolymerization initiator; (C) an ethylenically unsaturated monomer; (D) a radical photopolymerization initiator; (E) a polyether polyol compound having one or more hydroxyl groups in one molecule; and, optionally, includes elastomer particles having a specific particle diameter and/or an epoxy-branched alicyclic compound.

Abstract: The present invention relates to novel compositions and methods for preventing corrosion.

Abstract: A radiation-curable, optical fiber coating composition has enhanced color stabilization and is formulated from a composition containing at least one radiation-curable oligomer or monomer. A concentration of urethane and ether linkages in the radiation-curable composition is such that a cured optical fiber coating formed from said radiation-curable composition exhibits a &Dgr;E of about 40 or less after being exposed for 96 hours to 150° C. and then for 144 hours to 180° C. Also provided is a radiation-curable optical fiber coating composition which is substantially urethane-free.

Abstract: Polymer articles including ethylene-vinyl acetate and maleic anhydride are described. The ethylene-vinyl acetate can be a high vinyl acetate content ethylene-vinyl acetate. The articles include foamed articles and non-foamed articles. The foamed articles have improved characteristics and properties, such as surface bonding properties.

Abstract: The present invention aims to develop a photosensitive resin composition which exhibits a rapid ink absorption rate, which has an excellent water resistance, and which is appropriate for providing an ink receiving layer forming a sharp ink dot shape and having an excellent color formability of ink. A photosensitive resin composition forming an excellent ink receiving layer is obtained by incorporating at least one selected from an ethylenically unsaturated group-containing compound having quaternary nitrogen and a grain flour (filler) such as a wheat flour or the like in a photosensitive resin composition containing a quaternary nitrogen-free ethylenically unsaturated group-containing compound, a photopolymerization initiator etc.

Abstract: A radiation-curable resin composition comprising (A) an organopolysiloxane having at least one acrylic functional group and (B) a photopolymerization initiator cures, upon exposure to radiation, into a flexible product having a gel fraction of at least 85% by weight.

Abstract: This invention is of a resin composition including an additive of one or more organic peroxide thermal imitators to cationic photoinitiators, that are sensitized with alpha-hydroxy-ketones, which composition provides a self-propagating thermal curing reaction first activated by a short duration of surface ultraviolet radiation. The thermal reaction is non-directional, thus eliminating the line of sight limitation of current radiation curing processes. Complete curing can be achieved of the composition in a very short time; often after only a few minutes or less. The activation period can be provided by only a few seconds of ultraviolet light using a wide variety of commercial ultraviolet light sources.

Abstract: Polymer articles including ethylene-vinyl acetate and maleic anhydride are described. The ethylene-vinyl acetate can be a high vinyl acetate content ethylene-vinyl acetate. The articles include foamed articles and non-foamed articles. The foamed articles have improved characteristics and properties, such as surface bonding properties.

Abstract: A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion—in particular, the adhesion of flexible films on a substrate.

Abstract: A monomer-grafted cross-linked polymer is prepared by the steps of activating a polymer by radiation, quenching the activated polymer so as to effect cross-linking therein, activating the cross-linked polymer by irradiation and contacting the activated cross-linked polymer with an emulsion that includes an unsaturated monomer, an emulsifier and water. The activated cross-linked polymer is contacted with the emulsion for a sufficient time to effect a desired extent of grafting.

Abstract: To provide liquid composition that allows efficient production of easy detachable adhesive solid, and adhesive products which are produced using said composition, wherein said products can be used repeating attaching and detaching and restore adhesiveness by washing when the adhesiveness was lowered. The liquid composition is cured by exposure to UV light to give easy detachable adhesive solid. For example, liquid composition containing oligourethane diacrylate 35.0 wt %, [Compound 2] 59.0 wt %, acetophenone-derived photo-initiator  5.0 wt %, and additives  1.0 wt % is screen-printed in a film with a thickness of 15 &mgr; m on 50% area.

Abstract: A radiation curable precursor coating composition for the preparation of a non-blocking, heat activatable adhesive includes a curable acrylic material, a curable elastomeric material, and a hydrocarbon tackifier material having a softening temperature ranging from approximately 50° C. to approximately 200° C., wherein when the acrylic material and the elastomeric material are cured, the coating composition is non-blocking at room temperature, but when the coating composition is heated to a temperature above both the softening temperature of the hydrocarbon tackifier and the Tg of the coating composition, the coating composition becomes adhesive.