Abstract: A process of preparing water soluble or water swellable polymer comprising the steps, (a) forming an aqueous mixture comprising, (i) a water soluble ethylenically unsaturated monomer or blend of monomers and, (ii) an ultra violet initiator, (b) effecting polymerisation by subjecting the aqueous mixture formed in step (a) to polymerisation conditions to form a polymer of said monomer or monomer blend, (c) subjecting the polymer formed in step (b) to ultra violet light radiation, characterised in that the polymerisation step (b) is conducted substantially in the absence of ultra violet radiation. In one preferred aspect the ultra violet initiator is distributed throughout the polymer formed in step (b). In another preferred aspect the step (c) is conducted ultra violet light at an intensity of up to 500 milli Watts/cm2.

Abstract: This invention relates generally to compositions and systems for forming biomaterials containing a transient colorant for visualizing tissue or surgical materials coated with such biomaterials, to methods of using such compositions as bioadhesives, for tissue augmentation, in the prevention of surgical adhesions, for coating surfaces of synthetic implants, as drug delivery matrices, for ophthalmic applications, and in other applications.

Abstract: A radiation curable aqueous coating composition comprises an aqueous resin having a chemically bonded phosphate group and an ethylenic unsaturated double bond, and/or a phosphate compound having an ethylenic unsaturated double bond and an aqueous resin having an ethylenic unsaturated double bond, which has high solvent resistance and adhesion to the surface of the metal material.

Abstract: Anti-glare film including anti-glare layer. The anti-glare film is obtained by coating or casting a liquid compositions containing a polymer, a curable resin precursor, and a solvent on a transparent plastic film, evaporating the solvent, forming a phase separation structure by spinodal decomposition, and curing the curable resin precursor by irradiation with light. The disclosed anti-glare film prevents reflection of surrounding scenery and dazzle in a display surface.

Abstract: An object of the present invention is to provide an excellent process for production of a surface-treated particulate water-absorbent resin wherein the process adopts a surface-treatment process that can enhance the properties (which the water-absorbent resin is desired to have) to extremely high levels, and also can solve the prior problems in such as safety, and further can sufficiently carry out the treatment even at a reaction temperature near room temperature. As a means of achieving this object, the process according to the present invention for production of a surface-treated particulate water-absorbent resin is characterized by comprising the steps of: adding a treating liquid to a particulate water-absorbent resin as a base polymer, wherein the treating liquid contains a radically polymerizable compound; and then irradiating the particulate water-absorbent resin with active energy rays while fluidizing the particulate water-absorbent resin, thereby surface-treating it.

Abstract: Compositions for use in the manufacture of three-dimensional objects including compositions for use as a support and/or release material in the manufacture of the three-dimensional objects are provided. There is thus provided, in accordance with an embodiment of the present invention, a composition suitable for building a three-dimensional object. The compositions may include, inter alia, a curable component, having a functional group, wherein if the functional group is a polymerizable reactive functional group, then the functional group is a (meth)acrylic functional group, a photo-initiator, a surface-active agent and a stabilizer; wherein said composition has a first viscosity of about 50–500 cps at a first temperature, wherein said first temperature is ambient temperature, and a second viscosity lower than 20 cps at a second temperature wherein said second temperature is higher than said first temperature, wherein, after curing, the composition results in a solid form.

Abstract: A formulation for repelling particulate matter on the surface of a coating comprising polymeric nanoparticles having a mean particle diameter of from 1 to 50 nm. The polymeric nanoparticles may further be functionalized to impart additional characteristics to modify the surface of the dried coating to minimize the chances for particles to become embedded or attached to the coating.

Abstract: An ink is disclosed for producing an ink jet print receptive surface on coated or coated polymer substrates such as CD-R substrates. The ink comprises a solid water soluble salt of acrylamidoalkanesulfonic acid, one or more ethylenically unsaturated monomers or oligomers capable of being photopolymerized by ultra-violet radiation, one or more functional extender pigments, and one or more photoinitiators. A modified silicone may be added to the ink to control the spread of the ink-jet print and the print definition. The inks are hardened by exposure to ultra-violet light. The ink may be over-printed with thermal drop-on-demand ink-jet printers.

Abstract: A solvent-containing multicomponent system curable thermally and with actinic radiation (dual cure) and comprising (A) at least one component comprising (A1) at least one constituent containing at least 1.8 meq/g of isocyanate-reactive functional groups, (A2) at least one constituent containing at least 1.8 meq/g of isocyanate-reactive functional groups and at least one functional group having at least one bond which can be activated with actinic radiation, and (B) at least one component comprising at least one polyisocyanate (B1); and its use as a coating material, adhesive or sealing compound.

Abstract: To provide an aqueous emulsion composition which has high adhesion strength for a wide variety of materials including molded products and affords sufficient wettability even for the object to be adhesive bonded of low surface polarity so that it can develop sufficient adhesiveness and whose emulsion is stable so satisfactorily as to provide good mechanical stability and storage stability, and to provide an adherent composition comprising the aqueous emulsion composition, at least ethylene-vinyl acetate copolymer or modified resin thereof, photo polymerization initiator, and unsaturated ethylenic monomer are mixed and dissolved or dispersed, to prepare oil drop component, followed by emulsifying the oil drop component in water by using a surface-active agent, whereby an aqueous emulsion composition, in which micelles each encapsulating at least the ethylene-vinyl acetate copolymer or modified resin thereof, the photo polymerization initiator and unsaturated ethylenic monomer are dispersed in water, is prepared

Abstract: A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer. A process for producing a three-dimensional object which comprises the use of a washing agent having a Hansen-solubility between 27-35 (Mpa)1/2.

Abstract: A process for the production of a graft copolymer comprises reacting an irradiated polymer in a reaction mixture comprising a first phase and a second phase. The first phase comprises a source of at least one non-water soluble monomer and the second phase comprises water and optionally, a water miscible organic solvent. The first and second phases are substantially immiscible and non-emusifiel. A high degree on monomer conversion is achieved.

Abstract: Active water compatible actinic radiation curable printing ink or coating compositions comprised of maleimide derivatives, water compatible resins and water, which are capable of curing at a practical intensity and energy level and a method for curing same.

Abstract: An ultrafiltration membrane is modified to exhibit low protein fouling and yet maintains a greater fraction of the original membrane permeability and retention properties after modification. This is achieved by grafting monomer onto the surface of a highly photoactive membrane such as polyethersulfone, via the process of dipping the polymeric membrane into a solution containing one or more monomers and a chain transfer agent, removing the membrane from the solution, securing the membrane inside of a quartz vessel contained within another vessel of liquid filter, and irradiating the membrane with a UV light at a wavelength between the range of 280 nm and 300 nm. High density grafting and shorter grafted monomer chain length result in low protein fouling and retention of permeability.

Abstract: The invention relates to macromolecular hydrophilic photocrosslinkers having polymeric backbones of substituted ethylene groups carrying photoactive groups. The photocrosslinkers are capable of producing, when being exposed to light of determined wavelengths above 305 nm, radicals which are retained on the macromolecular photocrosslinkers and reacting so as to accomplish a crosslinked network structure. The invention further relates to the preparation of photocrosslinkers, their use in different aqueous systems and their utility in production of medical devices including ophthalmic lenses.

Abstract: A composition for ink-jet recording is provided. The composition comprises a water miscible resin and a water-soluble ultraviolet curable humectant. The concentration of the water-soluble ultraviolet curable humectant may be in the range of 5% to 50% by weight. Examples of such humectants may include polyalkylen glycol acrylates, polyethers acrylates, and highly ethoxylated derivatives of acrylates.

Abstract: A radiation curable resin composition comprising a water soluble amine salt prepolymer formed between an oligomer or compound having at least one amine group and an unsaturated carboxylic acid and use of this composition as a surface coating or ink.

Abstract: Modified polyolefins are produced by reacting a functionalized polyolefin with one or more ethylenically unsaturated compounds having a functional group reactive with the functional group on the polyolefin. These modified polyolefins may then polymerize in the presence of a photoinitiator upon exposure to ultraviolet radiation and also have the capability of copolymerizing in the presence of a photoinitiator with other ethylenically unsaturated crosslinking agents upon exposure to ultraviolet radiation. These modified polyolefins may also contain pendant carboxyl groups, which have the propensity to form hydrophilic salts with amines, and therefore may be rendered water-dispersible. The modified polyolefins of the present invention significantly improve the adhesion of paints, inks, and adhesives to various plastic and metal substrates.

Abstract: A process for preparing a graft copolymers is provided comprising exposing a polymeric base material to a dose of ionizing radiation, and then contacting the irradiated base material with a microemulsion comprising at least one fluorostyrenic monomer, water and water-miscible solvent. The graft copolymer may be formed into a membrane, including ion exchange membranes.

Abstract: An aqueous coating composition useful as a floor polishing agent is disclosed. The composition comprises (A) an aqueous dispersion of a copolymer obtained by the emulsion polymerization of (a) an ethylenically unsaturated carboxylic acid monomer, (b) a (meth)acrylic acid alkyl ester monomer, and (c) other monomers polymerizable with the monomers (a) and (b), (B) an unsaturated monomer curable with energy rays, and (C) a photoinitiator. The floor polishing agent containing the aqueous coating composition exhibits excellent delamination properties and dry buff applicability.

Abstract: A process in which an aqueous solution of a vinyl monomer is subjected to photopolymerization to produce a water-soluble polymer which has a high molecular weight, is highly soluble in water, and reduced in unreacted monomer content is provided. The process comprises subjecting an aqueous solution of a vinyl monomer to photopolymerization with the aid of an azo compound having a 10-hour half-life decomposition temperature of 90° C. or lower as a photopolymerization initiator in such a manner that first-stage light irradiation is conducted at an irradiation intensity of 0.5 to 7 W/m2 and second-stage or subsequent light irradiation is conducted at an irradiation intensity higher than that in the first stage and in an integrated quantity of light of 70,000 J/m2 or larger.

Abstract: The present invention is a method for the modification of the surfaces of polymeric materials with polymer coatings that may be subsequently treated to be lubricious and anti-microbial. The method comprises incubating a photo-initiator-coated polymeric material with an aqueous monomer that is capable of free radical polymerization and exposing the incubating polymeric material to UV light creating a modified surface on said polymeric material. The method may additionally comprise adding a silver component to the modified surface. The silver component may be provided as a silver salt coating or a silver salt contained within a hydrogel bonded to the acrylate modified polymeric material surface.

Abstract: A jobsite-applied radiation curable floor finish containing inorganic particles can be applied to a multipiece flooring material whose pieces have a top surface, a side surface or surfaces and gaps between pieces. The top surface is coated and at least the uppermost portion of the gaps are filled with a layer or layers of cured finish composition comprising radiation cured polymer and sufficient inorganic filler particles to impart increased scratch resistance to the cured finish. The finish can also be applied as a strip agent-permeable coating atop a strippable intermediate coating atop a substrate.

Abstract: An useful aqueous photocurable resin composition is provided. The aqueous photocurable resin composition of the present invention comprises at least water, a polymerizable material polymerizable with radical initiation and a water-soluble photopolymerization initiator which generates a radical with light, wherein the polymerizable material has at least two polymerizable functional groups and one anionic functional group.

Abstract: A photosolder resist composition of the invention is characterized by containing (A) a resin containing radical polymerization groups and carboxyl groups obtained by adding a cyclic ether group of a cyclic ether group-containing vinyl monomer to a carboxylic group of a radical copolymer containing at least isobornyl (meth) acrylate and a carboxyl group-containing vinyl monomer as monomer units; (B) an inorganic filler; and (C) a photocurable mixture of a polyfunctional acrylic monomer (c1), a cyclic ether group-containing compound (c2), and a photopolymerization initiator (c3).

Abstract: A composition and method that provides a chemically grafted coating onto a substrate. The composition comprises an acrylate and a grafting initiator. The acrylate may be a waterborne urethane acrylate. The composition may also comprise resistance agents, adhesion agents, UV curing photoinitiators, defoaming agent, and/or deglossing agents. The substrate may be any wood or plastic, but works well with heat shrinkable polyolefin tubing. The composition may also be quick curing such that the coating from the composition may be cured under a D bulb and an H bulb at a rate of 100-160 feet/minute. The coating on the substrate resists delamination and wear. The coating may have indicia printed on the coating, the indicia being composed from ink or other printable materials.

Abstract: This invention pertains to radiation-curable aqueous compositions comprising a mixture of water-reducible oligomer, monomer, and water-insoluble cationically-modified latex. More particularly, the invention pertains to radiation-curable aqueous compositions that are suitable for use as ink jet printing receptive coatings and in the production of ink jet printable products.

Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.

Abstract: A process for making a self-dispersible, radiation curable coating composition involving: (a) providing a cationic oligomer; (b) providing an epoxy functional monomer; (c) providing a surfactant component; (d) providing a transfer agent; (e) providing a photoinitiator; and (f) mixing (a)-(e) to form the coating composition.

Abstract: A method of forming a polymer layer on a support surface by the use of a coating agent and polymerizable compounds. The coating agent provides photoreactive groups adapted to attach the agent to the surface, as well as photoreactive groups adapted to remain unattached to the surface, and thus serve as photoinitiators for the activation of polymerizable compounds in order to form a polymer layer thereon. Also provided are coating agents, per se, as well as a method of using such agents and the resultant surfaces and devices fabricated therefrom.

Abstract: A single solution bonding formulation for dental applications comprising a plurality of at least one self-polymerizable polyvinyl acidic monomer or at least two different polymerizable polyvinyl acidic monomers, a calcium phosphate filler, at least one photoinitiator, optionally an accelerator, optionally a solvent, and optionally a fluoride additive is provided. Additionally, a method for treating enamel, dentin, and/or pulp with the same single solution bonding formulation is provided. The single solution bonding formulation provides for the release of calcium, phosphate and/or fluoride ions which are sufficient in situ to form hydroxyapatite and/or fluorapatite.

Abstract: To provide a light transmitting material which has high transmission at wavelength ranges used for communication and excellent characteristic properties such as heat resistance, water resistance and chemical resistance, and makes it possible to produce a grating and incorporate it in a mounting module with ease. A photosensitive composition for forming a light transmitting material comprising a silane compound or hydrolysis/dehydration condensation reaction product thereof, a photoinitiator and water, the silane compound being represented by the following formula (1): R1SiX13  (1) wherein R1 is an organic group having a polymerizable carbon-carbon double bond, and X1 is a hydrolyzable group or atom, with the proviso that at least 40% of the total number of hydrogen atoms of the organic group R1 are substituted by at least one substituent atom selected from the group consisting of deuterium, fluorine, chlorine and bromine.

Abstract: A water-based, flash-curable ink jet ink that is capable of adhering to plastic substrates, such as flexible polyvinyl chloride, the ink comprising: a) at least one water-dispersible or water-soluble acrylate polymerizable material; b) at least one polymerizable material that is capable of softening the substrate in part or in full and is resistant to hydrolysis; c) at least one colorant such as a pigment, a dye or both a pigment and a dye; and d) at least one UV photoinitiator.

Abstract: What is described is a polymeric hydrogel product of a stable, aqueous polymeric composition which composition forms a clear to translucent film upon application to a substrate, and includes, by weight, 5-75% of (a) a water-soluble polymer having (b) in situ-formed, substantially water-insoluble resinous particles of said polymer substantially uniformly dispersed therein, and (c) 25-95% of water, made by irradiating the composition with high energy electron beam or gamma-radiation.

Abstract: The invention provides ink which is best suited for inkjet printing of a printed substrate. The ink is a photo polymerizing type water-base ink including at least a colorant, a photo polymerization resin, a photo initiator, and a water-base solvent. The photo polymerization resin includes oligomer particles in an emulsion state and monomers which reside in the oligomer particles. The water-base ink contains, with content ratio in terms of the percentage weight, 5% of ethyleneglycol, and between 0.1% to 10% of 2-pyrrolidone and N-acryloyl morpholine combined.

Abstract: The present invention provides an aqueous solder resist composition comprising: (a) A water-soluble or water-dispersible, photopolymerizable resin containing at least one polymerizable unsaturated group and at least one carboxyl group, the carboxyl group being neutralized with an amine compound, (b) a photoinitiator, (c) an amino resin, and (d) a low reactivity epoxy compound free of an epoxy group represented by the formula  wherein Y is oxygen or nitrogen.

Abstract: Disclosed are modified latexes having improved drying speed, comprising a polymer having one or more pendant side chains, such side chain comprising the product of the reaction between a mono- or poly-functional group capable of reacting with an acid or hydroxyl unit, and such units present on the precursor polymer. Such modified latexes are storage-stable one-pack compositions useful alone or in combination in coating applications, or as adhesives, sizing agents, composites, impregnants, castings, caulks, and non-woven binders. Also disclosed is a method for providing a crosslinked protective coating on a substrate, comprising the steps of: applying a coating of the composition of the present invention to the substrate; and allowing the composition to cure at ambient temperature or greater, or applying radiation to the composition to effect curing.

Abstract: A dental adhesive composition comprising: (A) 100 parts by weight of a polymerizable unsaturated monomer containing 5% by weight or more of a radical polymerizable monomer having an acid group; (B) 35 to 100 parts by weight of an acid-reactive filler; (C) 35 to 100 parts by weight of water; (D) 5 to 100 parts by weight of a water-soluble organic solvent; and, (E) 0.1 to 10 parts by weight of a polymerization catalyst.

Abstract: Among other things, a dental embedding material is proposed, containing: 10-30 wt.-% polyethylene glycol dimethacrylate 40-55 wt.-% polymethyl methacrylate 5-15 wt.-% highly disperse silicon dioxide <1 wt.-% photoinitiators, stabilizers, 10-30 wt.-% of at least one compound from the group: urethane dimethacrylate, bis-GMA, ethoxylated bis-GMA.

Abstract: The invention discloses methods for making foams by photopolymerizing emulsions comprising a reactive phase and a phase immiscible with the reactive phase components. Foams made from water-in-oil emulsions, including high internal phase emulsion are disclosed. Articles and uses for the foams are also described.

Abstract: Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stabilizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.

Abstract: Ink compositions having excellent imaging and a low tendency to foam are disclosed. The ink compositions may contain one or more fluorochemical surfactants. Methods of coating a substrate by printing the ink composition onto a substrate are also disclosed. Substrates coated with an ink composition are further disclosed.

Abstract: A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer.

Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.

Abstract: A composition and method that provides a chemically grafted coating onto a substrate. The composition comprises an acrylate and a grafting initiator. The acrylate may be a waterborne urethane acrylate. The composition may also comprise resistance agents, adhesion agents, UV curing photoinitators, defoaming agents, and/or deglossing agents. The substrate may be any wood or plastic, but works well with heat shrinkable polyolefin tubing. The composition may also be quick curing such that the coating from the composition may be cured under a D bulb and an H bulb at a rate of 100-160 feet/minute. The coating on the substrate resists delamination and wear. The coating may have indicia printed on the coating, the indicia being composed from ink or other printable materials.

Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.

Abstract: A photosensitive resin composition developable with water or a diluted alkali solution comprises the following components (A) to (D). That is, the component (A) is a water-soluble photosensitive resin selected from the group consisting of a first resin obtained by introducing a styryl pyridinium group into a polyvinyl alcohol polymer, a second resin obtained by introducing a styryl quinolinium group into the polyvinyl alcohol polymer, and a third resin obtained by adding N-alkylol(meth)acrylamide to the polyvinyl alcohol polymer. The component (B) is a photosensitive prepolymer having a carboxyl group and at least two ethylenically unsaturated groups in molecule. The component (C) is a photopolymerization initiator. The component (D) is water. The photosensitive resin composition will be preferably used as a photoresist ink for manufacturing printed wiring boards.

Abstract: A co-mingled polyurethane-polyvinyl ester composition can be used as a coating, which has good scratch, mar and solvent resistance. The coating is derived from a waterborne polyurethane solution containing free radically polymerizable monomers such as acrylate, ultraviolet light initiators, and optionally urethane crosslinking agents. A process for forming the co-mingled polyurethane-polyvinyl ester composition comprises drying the waterborne polyurethane containing the polymerizable monomers therein and radiation polymerizing, as by ultraviolet light, the free radically polymerizable monomers on a substrate such as a plastic sheet to form a laminate. Subsequently, the laminate can be utilized to form a coating on a product as by thermoforming, where if urethane crosslinking agents are utilized, the polyurethane will be crosslinked.

Abstract: Photoactivatable water born coating composition comprising

Abstract: A water-dispersible, radiation-curable polyurethane composed essentially of a) organic, aliphatic or alicyclic polyisocyanates, b) cycloaliphatic diols and/or cycloaliphatic diamines, c) compounds containing at least one isocyanate-reactive group and at least one free-radically polymerizable unsaturated group, d) compounds containing at least one isocyanate-reactive group and at least one dispersing-active group, e) if desired, compounds containing at least two isocyanate-reactive groups having a molecular weight <1000 g/mol, f) if desired, compounds other than a) to d) containing at least one isocyanate-reactive group.