Abstract: It is an object of the present invention to provide a photo-curable resin composition which provides a sealing agent for a flat panel display with good moisture permeation resistance and excellent adhesion. The present inventors have conducted extensive studies to solve the above-described problems, and as a result, they have found a photo-curable resin composition which comprises a cationic photopolymerization initiator (A), a cationically polymerizable compound (B), a cyclic polyether compound (C) and another organic compound (D), wherein the amount of (B) is 1.0 to 99.9% by mass and the amount of (C) is 0.0 to 10.0% by mass, both based on the sum of (B), (C) and (D), and the sum (F) of the fluorine atoms in a fluorine-containing organic compound is 0.0 to 40.0% by mass, based on the sum of (B), (C) and (D), and wherein at least 1/1000 mass ratio of the (B) component is a compound containing an oxetanyl group, and both of the contents of (C) and (F) are not 0.0% by mass at the same time.

Abstract: A composition usable as a moisture absorbent for an organic electroluminescence device. A photocurable hygroscopic composition comprising (a) a moisture-reactive organic metal compound, (b) a (meth)acrylate, (c) a carboxyl group-containing polymerizable monomer, and (d) a photopolymerization initiator. The proportion of the moisture-reactive organic metal compound (a) is from 5 to 70 wt % based on the entire composition, and the proportion of the carboxyl group-containing polymerizable monomer (c) is from 0.1 to 50 mol % based on the moisture-reactive organic metal compound (a).

Abstract: Compositions suitable for support in building a three-dimensional object are described. The compositions may include a non-curable component and a curable component not reactive with the non-curable component. The composition may further include a surface-active agent and a stabilizer, wherein the composition has a first viscosity of about 20-500 cps at ambient temperature, and a viscosity lower than 20 cps at a temperature higher than the ambient temperature. After irradiation, the composition results in a solid, a semi-solid or liquid material.

Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.

Abstract: A photosensitive resin composition for flexographic printing comprising a thermoplastic elastomer (a), a photopolymerizable unsaturated monomer (b), and a photopolymerization initiator (c) as essential ingredients, wherein the thermoplastic elastomer (a) is a block copolymer composition containing a block copolymer (i) having at least one polymer block comprised mainly of a mono-alkenyl aromatic compound and at least one polymer block comprised mainly of butadiene, and a branched block copolymer (ii) having at least two polymer blocks comprised mainly of a mono-alkenyl aromatic compound and at least one polymer block comprised mainly of butadiene; the amount of the mono-alkenyl aromatic compound unit in the thermoplastic elastomer (a) is 10-28 mass %; the amount of the block copolymer (i) in the thermoplastic elastomer (a) is 15-50 mass %; and the number average molecular weight (number average molecular weight in terms of polystyrene measured by GPC) of the branched block copolymer (ii) is 200,000-400,000.

Abstract: A radiation-curable desiccant-filled adhesive/sealant composition comprising a radiation-curable resin, one or more desiccant fillers, one or more photoinitiators or photosensitizers, and optionally, one or more inorganic or organic fillers.

Abstract: Printed images with excellent image quality, adhesion and durability are prepared by applying an ink to a printable surface which contains one or more components containing reactive groups followed by exposing the surface with the applied ink to ultra-violet light, high intensity visible light, or electron beam radiation. The surfaces of typically non-adherent substrates, such as polyolefins and PET are rendered adherent using this method without plasma, corona or flame treatment. The reactive groups include ethylenically unsaturated groups such as vinyl, vinyl ether, allyl, methacrylate, acrylate etc, epoxides, hydroxyl, amines, acidic groups, basic groups and free radical generating groups. The images exhibit good resolution, edge acuity and permanence.

Abstract: The invention relates to an oriented pressure-sensitive adhesive and to a process for preparing it. The pressure-sensitive adhesive comprises an acrylate-based UV-crosslinked polymer which is synthesized in a mass fraction of at least 50% from at least one acrylic monomer according to the general formula (I) in which R1 is hydrogen (H) or a methyl group (CH3) and R2 is hydrogen (H) or a branched or unbranched, saturated C1 to C30 hydrocarbon radical, which may optionally be substituted by a functional group, the pressure-sensitive adhesive, in the form of a film applied as a melt (hotmelt), having a preferential direction which is characterized in the free film by a shrinkback of at least 3% relative to an original stretching of the film in the preferential direction. The orientation is generated after polymerization by means of a suitable coating process and is subsequently “frozen in” by UV crosslinking.

Abstract: The invention relates to polymeric nanoparticles and nanogels, which can contain, deliver, and/or release one or more active agents, such as biologically active molecules or fragrance molecules, and methods of preparing the polymeric nanoparticles and nanogels. The nanoparticles are crosslinked utilizing radiation (g-radiation) as the catalyst for free radical polymerization (see FIG. 1) rather than by toxic chemical means. The nanoparticles and nanogels can be modified, without limitation, with hydrophobic, hydrophilic, or ionic groups or moieties. or with enzymes. Methods of preparing nanoparticles and nanogels containing or encapsulating a variety of molecules, including biologically active molecules and fragrance molecules, are provided.

Abstract: A process for the preparation of a hydroperoxide functionalized rubber compound by the conversion of triplet state oxygen to singlet state oxygen in the presence of oxygen and a light-induced photoreductant. A dispersion of an unsaturated rubber component in a carrier solvent is introduced into a reactor containing a permeable catalyst bed comprising a light-induced photoreductant component supported on a particulate substrate component and passed through the catalyst bed. A gaseous oxidizing agent is passed through the catalyst bed in contact with the rubber-containing dispersion. The catalyst bed is irradiated with electromagnetic light radiation in the ultraviolet or visible light range at an intensity sufficient to convert triplet oxygen in the oxygenated rubber component to singlet oxygen. The oxygenated rubber component is then recovered from the reactor.

Abstract: Compositions, methods of using the compositions, and solid freeform fabrication (SFF) systems for producing three-dimensional objects are disclosed. One exemplary composition, among others, includes a basic component, an acidic component, at least one monoacrylate component, a light sensitive initiator, and a polar binder. A polymerization reaction between the at least one monoacrylate component and the light sensitive initiator occurs upon exposure to optical energy. The polar binder includes a viscosity modifier and a surface tension modifier. The polar binder is capable of stimulating a crosslinking reaction between the basic component and the acidic component.

Abstract: The photocurable resin composition in the first aspect of the invention comprises, as essential components, (A) a binder resin having photopolymerizable functional groups and (B) inorganic superfine particles in the order of sub-micron which can be dispersed in a colloidal form; the photocurable resin composition in the second aspect comprises, as essential components, (C) a binder resin containing photopolymerizable functional groups and (D) hydrophobic fine silica particles; and the photocurable resin composition in the third aspect comprises, as essential components, (E) a binder resin containing acrylic resin and urethane acrylate resin and/or polyester acrylate having photopolymerizable functional groups and (F) an organometallic coupling agent.

Abstract: A light diffusing resin film is formed by curing a light-curable liquid resin composition whose indispensable components are a photo-polymerizable monomer (A), an organic compound (B) that is incompatible with the photo-polymerizable monomer (A), a cosolvent (C) that is compatible commonly with the photo-polymerizable monomer (A) and the organic compound (B) that is incompatible with the photo-polymerizable monomer (A), and a photo-polymerization initiator (D), a light diffusing film having the resin film on a film substrate, an edge lighting type backlight unit in which the light diffusing film is used, and a liquid crystal display device provided with the edge lighting type backlight unit.

Abstract: A polymerization reaction apparatus is used for producing a polymer by photo-polymerizing a polymerization precursor by irradiation with an active energy ray in a supercritical fluid or subcritical fluid. The apparatus includes a reaction vessel (3), active energy ray irradiation means (6, 5), a fluid feeding means of feeding a fluid into the reaction vessel, and a fluid discharging means of discharging the fluid. The apparatus further includes [1] polymerization precursor storage parts (11, 11?) for accommodating a polymerization precursor and/or addition components to be contained in the polymer and feeding the polymerization precursor and/or addition components to a reaction field, or [2] a polymerization precursor feeding means capable of feeding a polymerization precursor and/or addition components into the reaction vessel.

Abstract: Radiation-curable compositions, and methods of making the same, for providing a wide variety of substrates with a durable, colored coating or colorant are disclosed. The color is at least in part provided by chromophore molecules that are covalently bonded to other components within the radiation-curable composition. A telecommunication element having a durable color identifying polymeric coating thereon is also disclosed. The telecommunication element comprises an elongated communication transmission medium, such as an optical fiber or an optical fiber ribbon, and a radiation-cured polymeric coating having an identifying color applied on at least a portion of the transmission medium.

Abstract: A molding composition and a method of forming an pattern. The method includes forming on a substrate a molding layer of a molding composition of aromatic divinyl ethers; pressing the template into the molding layer, the template having a relief pattern, the molding layer filling voids in the relief pattern, the template not contacting the substrate; exposing the molding layer to actinic radiation, the actinic radiation converting the molding layer to a cured molding layer having thick and thin regions corresponding to the relief pattern; removing the template; filling the thin regions of the relief pattern with a backfill material; removing regions of the molding layer not protected by the backfill material to expose regions of the substrate; forming trenches in the exposed regions of the substrate; and removing any remaining molding layer and backfill material. A transfer layer may be used between the molding layer and the substrate.

Abstract: The present invention is directed to a photocurable and antistatic resin composition for coating an optical fiber, comprising (A) a photopolymerizable urethane acrylate oligomer, (B) a reactive monomer having at least one (meth)acrylate or vinyl group, (C) a photoinitiator, and (D) an antistatic agent compatible with the oligomer and monomer components, and optionally (E) a pigment or dye. The coating of the inventive composition can increase the productivity of the optical fiber, and provide an optical fiber having a uniform coating layer.

Abstract: The present invention relates to coating compositions for producing formable scratchproof coatings with dirt repellency effect, comprising A) from 1% by weight to 30% by weight of a prepolymer obtainable by free-radically polymerizing a mixture comprising A1) from 1 to 10 parts by weight of at least one sulphur compound containing at least 3 thiol groups and A2) from 90 to 99 parts by weight of alkyl (meth)acrylates, B) from 0.2% by weight to 10% by weight of at least one fluoroalkyl (meth)acrylate having 6 to 60 carbon atoms in the alcohol residue and including 13 to 121 fluorine atoms, C) from 20% by weight to 80% by weight of polyfunctional (meth)acrylates, D) from 0.01% by weight to 10% by weight of at least one initiator E) from 2% by weight to 75% by weight of at least one diluent and F) from 0% by weight to 40% by weight of customary additives G) from 0.01% by weight to 10% by weight of 2,2,3,3-tetrafluoropropyl methacrylate.

Abstract: A curable method useful for encapsulating solid state devices includes (A) an epoxy resin; (B) an effective amount of a cure catalyst comprising (B1) a first latent cationic cure catalyst comprising a diaryl iodonium hexafluoroantimonate salt; (B2) a second latent cationic cure catalyst comprising (B2a) a diaryl iodonium cation, and (B2b) an anion selected from perchlorate, imidodisulfurylfluoride anion, unsubstituted and substituted (C1-C12)-hydrocarbylsulfonates, (C2-C12)-perfluoroalkanoates, tetrafluoroborate, unsubstituted and substituted tetra-(C1-C12)-hydrocarbylborates, hexafluorophosphate, hexafluoroarsenate, tris(trifluoromethylsulfonyl)methyl anion, bis(trifluoromethylsulfonyl)methyl anion, bis(trifluoromethylsulfuryl)imide anion, and combinations thereof; and (B3) a cure co-catalyst selected from free-radical generating aromatic compounds, peroxy compounds, copper (II) salts of aliphatic carboxylic acids, copper (II) salts of aromatic carboxylic acids, copper (II) acetylacetonate, and combinations

Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antoxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion, post-doping annealing, and materials used therein.

Abstract: According to the present invention, there is provided a curable composition, containing a compound (A) having at least one ethylenically unsaturated double bond, a photopolymerization initiator (B), a coloring agent (C), an alkali-soluble resin (D), and a compound (E) having in the molecule a partial structure of urethane, amide or urea.

Abstract: A rustproofing composition has superior properties satisfying rustproofing quality requirements and workability requirements for car underbodies, parts around tires, parts with pockets, plate-bonded parts or the like of car bodies, and containing volatile organic solvent of 20 mass % or less. In a rustproofing composition containing UV curable resin and photopolymerizing initiator and at least one of rustproofing oil and rustproofing wax, the content of nonvolatile component at 105° C. for 3 hours in the rustproofing oil and rustproofing wax is 80 mass % or more, the UV curable resin and photopolymerizing initiator are dissolved or dispersed in the rustproofing oil and rustproofing wax, and the UV curable resin is contained at 0.3 to 10 weight % to the total weight of the composition.

Abstract: A composition comprising one or more radiation curable monomers and/or oligomers and one or heat stable composition comprising at least one radiation-curable alpha, beta-ethylenically unsaturated compound, at least one phenolic stabilizer, and at least one non-phenolic stabilizer selected from the group consisting of hydroperoxide decomposers and free radical traps. The compositions and methods are useful in applications such as radiation curable ink jet systems where viscosity is reduced by heating.

Abstract: There is provided a highly functional one-step light-curing dental adhesive composition i) based on a multifunctional prepolymer mixture of 2,2-bis-[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (“Bis-GMA”) and a multifunctional prepolymer formed by substitiuting hydrogen atoms of hydroxyl groups present in Bis-GMA molecules with methacrylate groups, in which the Bis-GMA is used as a base prepolymer of conventional dental adhesive compositions; and ii) comprising and acidic monomer for removing a portion of smear layer, which is allowed to be bonded without separate treatment of acid etchant, an adhesive monomer having both hydrophobic and hydrophilic properties, a hydrophilic monomer which is allowed to be bonded in the present of moisture, an inorganic filler for improving mechanical properties, diluent, water for demineralization, a photoinitiation system and other additives.

Abstract: An inkjet ink capable of undergoing polymerization (curing) after exposure to microwave radiation, and method for printing and fixation the above ink on various substrates by ink jet printer and microwave source is disclosed. Ink compositions suitable for microwave curing are provided. These inks overcome the problems associated with drying of solvent and water based inks, and curing of UV inks. The present invention provides also a method for quick fixation of inks in which the ink vehicle is composed of molecules having appropriate dielectric properties.

Abstract: A method for producing polymers with controlled molecular weight and desired end functionalities and the resulting polymers. The method comprises a) forming a microemulsion comprising monomer, water, and an effective amount of an effective surfactant, b) adding to the microemulsion an amount of a water-soluble photo-initiator system wherein the initiator system produces one type of monomer-soluble radical active centers and wherein the radical active centers contain desired end group functionalities for a polymer or oligomer, and c) illuminating the microemulsion to photoinitiate polymerization of the monomer wherein the illuminating is according to a temporal and spatial illumination scheme, and wherein the amount of the initiator system and the temporal illumination scheme are chosen to produce a desired molecular weight of the polymer or oligomer. The microemulsion can further comprise an effective amount of an effective co-surfactant. The method can be used to produce polymers and copolymers.

Abstract: Methods for making composite flakes are disclosed. The composite flakes are formed from particles and one or more monomers and/or resins or resin systems. The polymer matrix of the flakes is highly crosslinked and/or high molecular weight. Use of the particles in powder coatings is also disclosed.

Abstract: Disclosed is a UV curable coating composition comprising a (methyl)acryloxy or vinyl functionalized silane, silica and acrylate oligomer containing at least two acrylate groups.

Abstract: Disclosed is a UV curable coating composition comprising a (methyl)acryloxy or vinyl functionalized silane, silica and acrylate oligomer containing at least two acrylate groups.

Abstract: The present invention provides a one-bottle dental bonding composition that provides a bonding layer excellent in bonding strength, independent of the skill of the practitioners, and, more preferably, that releases fluoride ion gradually into oral cavity over an extended period of time. The one-bottle dental bonding composition comprises a radical polymerizable monomer (A) having an acidic group in the molecule, another radical polymerizable monomer (B), a photopolymerization initiator (C) and a water-soluble organic solvent (D), and is substantially free of water.

Abstract: A gas phase species (such as ozone, H2O2, or N2O) is photodissociated with ultraviolet light into a reactive species that is patternwise directed (e.g., through a mask) onto a surface of a material, such as an organosilicate. The reactive species reacts with the material to form a polar oxidation product such as —OH, thereby resulting in discrete hydrophilic regions separated from each other by hydrophobic regions. The degree of hydrophilicity of the discrete regions may be tailored by controlling the concentration of the reactive species, the ultraviolet light intensity, the temperature to which the material is heated, and exposure time. End products made with the methods are suitable for use in a biomolecular array.

Abstract: The invention is a radiation curable coating containing an antimicrobial agent, where upon irradiation with UV light, the radiation curable coating rapidly cures to a polymeric coating. The polymeric coating has durable antimicrobial properties, being especially effective at preventing the growth of Staphylococcus aureaus and Kleibsella pneumoniae on wood flooring and furniture. The major components in the radiation curable coating are a urethane acrylic oligomer, a radiation cure package, an antimicrobial agent, a cross-linking agent, and optionally, an additive package. The radiation curable urethane oligomer is a relatively short chain backbone urethane polymer that is end capped with a radiation curable moiety, where the moiety is an acrylic. The cross-linking agent is one or more monomers used to lower the viscosity and promote cross-linking, and include acrylate esters of mono-, di-, tri-, or tetrafunctional alcohols. The radiation cure package contains at least one photoinitiator.

Abstract: To provide a radiation-sensitive curable liquid resin composition having excellent applicability and capable of producing a film excelling in hardness, scratch resistance, adhesion, transparency, and appearance of the surface of the film. A curable liquid resin composition comprising: (A) particles prepared by bonding at least one oxide of an element selected from the group consisting of silicon, aluminum, zirconium, titanium, zinc, germanium, indium, tin, antimony, and cerium to a specific organic compound which comprises a polymerizable unsaturated group and a group shown by —X—C(?Y)—NH— (wherein X is NH, O, or S, and Y is O or S), and preferably a silanol group, (B) a compound having two or more polymerizable unsaturated groups in the molecule, (C) a specific alkylene glycol organic solvent, and preferably (D) a polymerization initiator.

Abstract: A method of producing a polymer according to the present invention is characterized by comprising a step of photopolymerizing one or more photopolymerizable polymerization precursors by irradiation with an activation energy ray in a supercritical fluid or in a subcritical fluid.

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: SU-8 photoresist compositions are modified to improve their adhesion properties by adding 1% to 6% of an adhesion promoter selected from the group consisting of glycidoxypropanetrimethoxysilane, mercaptopropyltrimethoxysilane, and aminopropyltrimethoxysilane. SU-8 photoresist compositions are modified to improve their resistance to cracking and film stress by adding 0.5% to 3% of a plasticizer selected from the group consisting of dialkylphthalates, dialkylmalonates, dialkylsebacates, dialkyladipates, and diglycidyl hexahydrophthalates. The improvements can be obtained simultaneously by adding both the adhesion promoter and the plasticizer to SU-8 photoresist compositions.

Abstract: A photoimageable composition comprising finely divided particles of inorganic material comprising coated silver particles that are at least partially coated with at least one surfactant and inorganic binder dispersed in organic medium comprising an aqueous developable polymer, photo-initiation system and organic solvent.

Abstract: This invention provides a reversibly thermochromic ultraviolet ray-hardening type ink having good color change sensitivity and excellent light resistance and fastness, and a reversibly thermochromic laminate produced using the same. The present invention also provides a reversibly thermochromic laminate produced by forming a reversibly thermochromic layer on a support using the same.

Abstract: A coating composition comprising (1) an anionic surfactant comprising a sulfonic acid salt, (2) a sol of fine inorganic oxide particles, (3) a silicon compound having one acryl or methacryl group and a hydrolyzable group or a product of hydrolysis of the compound, (4) a compound having at least two photopolymerizable unsaturated groups, and (5) a photopolymerization initiator; and a coated article obtained by applying the coating composition to a base and then photocuring the coating. The coated article combines antifogging properties with abrasion resistance sufficient for practical use.

Abstract: A resin composition of the present invention is obtainable by adding a photo-polymerization initiator (d) to a resin solution (a) containing a modified product of a thermoplastic resin (A). The modified product is prepared by conducting radical polymerization of the thermoplastic resin (A) with a (co)polymer (B) of a copolymerizable monomer (C) comprising a monomer having an ?,?-mono-ethynically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)1(B) of 1/9 to 9/1, in an organic solvent, or by conducting polymerization of a copolymerizable monomer (C) comprising a monomer having an ?,?-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(C) of 1/9 to 9/1, in an organic solvent in the presence of the thermoplastic resin (A), and then conducting radical polymerization thereof. A paint including the resin composition and a process for forming a coating film are also disclosed.

Abstract: Photoiniferters for controlled radical polymerizations are described. The photoiniferters have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.

Abstract: A process for preparing a multicomponent system curable thermally and with actinic radiation (dual cure), where (A) at least one component comprising at least one constituent (A1) containing per molecule at least two isocyanate-reactive functional groups, and (B) one component containing one polyisocyanate (B1), are mixed with one another, which comprises mixing component (A) and/or component (B), shortly before their mixing, with one further liquid component (C) comprising (C1) one constituent which is curable with actinic radiation and contains per molecule at least two functional groups which contain bond which can be activated with actinic radiation, and/or (C2) one constituent which is curable thermally and with actinic radiation and contains per molecule at least one functional group which contains at least one bond which can be activated with actinic radiation, and containing per molecule at least one isocyanate-reactive functional group or containing at least one isocyanate group, and subsequently mi

Abstract: Acrylic ester phosphonic acids of general formula (I), stereoisomers thereof and mixtures of these, wherein n is 1 or 2, on the condition that for n=1 R1 has the meaning and for n=2 R1 has the meaning R2 is a C1 to C12 alkylene radical, C4-C8 cycloalkylene radical or C7 to C15 alkylene phenylene radical; R3 is hydrogen, a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical; and R4, R5, independently of each other, each stand for a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical.

Abstract: Certain essentially phenol antioxidant-free stabilizer systems that comprise either a binary hindered amine/hydroxylamine or nitrone or amine oxide or benzofuranone system or a ternary hindered amine/hydroxylamine or nitrone or amine oxide or benzofuranone/organic phosphite or phosphonite system are especially effective towards protecting polyolefins against the deleterious effects of gamma irradiation. Polyolefin articles such as medical packaging, hospital garments, draperies, woven and non-woven fiber products, surgery utensils, blow-molded I.V. bottles, hypodermic syringes, needle shields, laboratory ware such as trays, funnels, Petri dishes and filters, and hygiene related articles may be sterilized with gamma irradiation and are stabilized according to the present invention.

Abstract: Methods of forming crosslinked polymer particles in situ from polymer precursors such as monomers or oligomers, comprising exposing a composition comprising at least one polymer precursor, a solvent or solvent mixture, and an antisolvent or antisolvent mixture to photoradiation under conditions whereby particles are formed are provided. The polymer precursor may be photosensitive, or a separate polymerization initiator may be used. In a preferred embodiment, the polymer precursor is insoluble in the antisolvent or antisolvent mixture and the solvent or solvent mixture is soluble in the antisolvent or antisolvent mixture at the concentrations used. Crosslinked polymer particles and crosslinked polymer particles comprising a polymer and a bioactive material are also provided. The polymer may be erodable, and the polymer particles formed may be used in a variety of applications, including controlled release of bioactive materials such as drugs.

Abstract: The disclosure relates to the provision of a lens having front and back optical surfaces bound by a peripheral edge, wherein the peripheral edge is coated with an edge coating that strongly bonds to the edge but that only weakly bonds to the optical surface, and wherein the edge coating is durable. A method of coating and a composition are also disclosed. The composition is preferably selected from a limited group of UV curable acrylates.

Abstract: A radiation curable, flexible, paintable composition produced from epoxy compounds and one or more polyol(s) has enhanced durability, thick and thin film adhesion, resistance to mold growth and dimensional changes while reducing solvent emissions. The composition can reduce, if not eliminate, runs and drips during the thermal bake cycles which are associated with using conventional compositions in automotive applications.

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 provides curable organic coatings with improved scratch resistance. More particularly, the present invention relates to a combination of inorganic filler having a 50th percentile particle diameter of from about 3 to about 9 micrometers comprised of aluminum oxide, silicon dioxide, ceramic spheres or mixtures thereof, and particles having a 50th percentile particle diameter of from about 10 to about 150 micrometers. The liquid coatings have a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s?1. The use of inorganic filler materials of the defined type and particle size are combined with the curable organic coating to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material.

Abstract: The invention provides organic coatings with improved scratch resistance. More particularly, the present invention relates to the use of inorganic filler materials of a defined type and particle size which can be added to curable organic coatings to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material.