Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.

Abstract: An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine oxide and an alpha hydroxy ketone. The formulation can cure rapidly, such as in about 20 minutes. The cured formulation can have a Tg above 150° C.

Abstract: A process for producing intraocular lenses (IOLs) capable of absorbing blue light and ultraviolet light using photo curing. Intraocular lenses so produced block blue light and ultraviolet light from reaching the retina of an eye implanted with the IOL. By blocking blue light and ultraviolet light from reaching the retina, the IOL thereby prevents potential damage to the retina.

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: The present invention is directed to a composition curable by radiation having a wavelength of 300 nm or more, a method of producing a coated substrate using such composition and the coated product so-produced. More particularly, the composition of the present invention comprises A) from about 1 to about 99% by weight of an unsaturated polymer or oligomer, B) from about 1 to about 99% by weight of an unsaturated epoxy acrylate, C) one or more photoinitiators, and, optionally, D) one or more solvents.

Abstract: The objective is to provide a surface protecting film for polycarbonate which is easy to laminate on polycarbonate and remove from the polycarbonate, the peel adhesive strength change to polycarbonate with times is small and there is no adhesive transferring to the backside of the film substrate in the case of storage for a long period or at a high temperature in the roll shape made of the long length tape. There provided a surface protecting film for polycarbonate, wherein a film substrate having Young's modulus of 1 GPa or more and an adhesive layer are comprised, the glass transition temperature (Tg) of the adhesive composing of the pressure sensitive adhesive layer being between 40 to 90° C. and the initial 180° peel adhesive strength to polycarbonate being between 10 to 300 mN/25 mm.

Abstract: A lithographic ink composition that comprises a colorant having absorbency wavelength cutoffs of about 300 nm or longer, acrylate-functional materials, and a photoinitiator that absorbs at a wavelength of 300 nm or longer is formulated with a mileage of from about 1.1 to about 1.3 grams per square meter or to reach a desired print density at 2 microns or less print layer thickness. The lithographic ink cures faster and can be printed at a faster rate, particularly when curing is to be done with an excimer light source.

Abstract: A process that includes (a) providing a mixture including i) a halocatechol diacrylate, a haloresorcinol diacrylate, or a halohydroquinone diacrylate component, ii) a charge transporting component having a radical polymerizable group, and iii) a radical initiator and b) initiating a radical polymerization.

Abstract: A method of depolymerizing galactomannan-type polysaccharide polymers and xanthan, preferably galactomannans, to a pre-selected lower molecular weight by irradiation with high energy electron beams. The preferred galactomannans for treatment according to this method are guar gum, guar splits and hydroxypropyl guar. In a preferred embodiment the guar gum is depolymerized preferably to a molecular weight of about 150,000 Daltons to about 200,000 Daltons. The depolymerized guar has a polydispersity of less than about 3.0 and is useful in oil well fracturing to enhance oil production.

Abstract: Disclosed are environmentally friendly, substantially all solids coating compositions which are curable using ultraviolet and visible radiation. In addition, the disclosed coating compositions are suitable for coating flexible objects and/or objects having angular features, such as, but not limited to, flexible metal objects with angular features. In addition, methods are disclosed for coating surfaces, or at least a portion of the surfaces, and curing of the coated surface to obtain partially or fully cured coated surfaces. Furthermore, articles of manufacture incorporating fully cured coated surfaces are disclosed, including, for example leaf springs. Also disclosed are methods, processes, production lines, articles of manufacture, and factories which incorporate these environmentally friendly, substantially all solids coating compositions curable using ultraviolet and visible radiation.

Abstract: A radiation-curable adhesive composition comprising at least one tackifier resin and at least one radiation-curable composition is provided wherein the tackifier resin comprises monomer repeating units from at least one aromatic monomer and at least one acrylate monomer. Processes to produce the radiation-curable adhesive composition as well as articles comprising the radiation-curable adhesive compositions are also provided.

Abstract: The present invention relates to an ultraviolet-curable coating composition comprising: (A) an ultraviolet curable four or more functional groups-containing polyfunctional (meth)acrylate having four or more (meth)acryloyl groups in the molecule and a number average molecular weight of 300 to 2,000, (B) a lactone-modified polymer of polyhydric alcohol mono(meth)acrylate containing 20 to 60 percents by weight of ?-caprolactone ring-opening addition product and having a hydroxyl value derived from the lactone modification of 100 to 180 mgKOH/g, and/or a lactone-modified polyester resin containing 10 to 50 percents by weight of lactone ring-opening addition product and having a hydroxyl value of 50 to 180 mgKOH/g, (C) a non-yellow polyisocyanate compound and/or an amino resin, (D) a light stabilizer and, (E) a photopolymerization initiator, wherein a weight ratio of component (A) against to a total weight of component Components (B) and (C) is 10:90 to 50:50, a weight ratio of component (B) against to component

Abstract: The present invention relates to radiation-curable coating formulations specifically for plastic substrates. The present invention specifically relates to resinous Michael addition products of ?-dicarbonyl compounds and Lewis-functional multifunctional acrylate esters. The present invention further relates to methods of fabricating and using the inventive compounds.

Abstract: A photocurable composition comprising cationically curable compound, an acrylate-containing compound; a hydroxyl-containing compound; a cationic photoinitiator; and a free radical photoinitiator; wherein said composition has less than 0.54 equivalents of cationically curable groups, less than 0.10 equivalents of acrylate groups and less than 0.10 equivalents of hydroxyl groups per 100 grams of said composition.

Abstract: It is an object to provide a photoreactive hot-melt adhesive composition which exhibits high adhesive strength immediately after combination of adherends and excellent bond strength after completion of curing and provides a highly durable bonded laminate. A photoreactive hot-melt adhesive composition containing: (a) a bisphenol F epoxy resin that assumes a solid form at ordinary temperature; (b) at least one compound selected from the group consisting of a compound represented by the following formula (1), a copolymer of tetramethylene oxide and ethylene oxide and a copolymer of tetramethylene oxide and propylene oxide; and (c) a cationic photoinitiator; R1-(OR2)n—OR3??Formula (1) (In the formula, R1 and R3 independently represent any of a hydrogen atom, a glycidyl group, and a monofunctional substituted or unsubstituted hydrocarbon group having 1–8 carbon atoms; R2 represents a bifunctional, substituted or unsubstituted hydrocarbon group having 2–8 carbon atoms; and n is an integer of 2 or larger.

Abstract: A plastic is converted from an initial condition with a higher density into a foamed condition with a lower density using a blowing agent, wherein the plastic is cross-linked prior to foaming by means of a first cross-linking agent and during the foaming by means of at least one second cross-linking agent.

Abstract: Compositions suitable for use as base coats and varnishes, preferably for use in combination with electrostatic of set inks printed onto plastics substrates, particularly polycarbonate compact discs. They contain a photopolymerisable material, a photoinitiator, an inorganic transfer agent and heavy metal salt, preferably a metallic carboxylate. They have a good shelf life and good adhesion after hardening with ultraviolet light.

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: A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ionic and/or potentially ionic monomers capable of free-radical copolymerization, and d)optionally further monomers, other than the compounds of components a)–c), capable of free-radical copolymerization; to free-radical polymerization in the presence of e) compounds according to formula (I) where R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3, R4 are identical or different aliphatc radicals having 1 to 7 carbon atoms and n is 1 to 4; and subsequently dispersing the resultant copolymer B) before or after addition of a neutralizing agent C) in water. The resulting dispersions can be used to coat substrates.

Abstract: Disclosed are environmentally friendly, substantially all solids coating compositions which are curable using ultraviolet and visible radiation. In addition, the disclosed coating compositions are suitable for coating thermally sensitive objects and/or rusted surfaces. In addition, methods are disclosed for coating surfaces, or at least a portion of the surfaces, and curing of the coated surface to obtain partially or fully cured coated surfaces are also disclosed. Furthermore, articles of manufacture incorporating fully cured coated surfaces are disclosed, including, for example gas tanks such as, barbeque propane tanks. Also disclosed are methods, processes, production lines, articles of manufacture, and factories which incorporate these environmentally friendly, substantially all solids coating compositions curable using ultraviolet and visible radiation.

Abstract: The printing ink of the present invention is characterized by containing a photo-curable high polymer precursor, and a photopolymerization initiator, and containing 3 to 8 parts by weight of inorganic fine particles having a mean particle size of 0.1 ?m or less to 100 parts by weight of the high polymer precursor. Moreover, the printing ink of the present invention is characterized by having a viscosity at a shear rate of 5 (l/s) of 8 to 75 (Pa·s), a viscosity at a shear rate of 20 (l/s) of 3 to 25 (Pa·s), and a thixotropic index value of 1.5 to 3.5. As a result of using this printing ink, letters, figures, symbols, graphics, etc., having a thickness of 0.2 mm or more can be printed rapidly without affecting the printed base material.

Abstract: Disclosed are environmentally friendly, substantially all solids coating compositions which are curable using ultra violet and visible radiation. In addition, methods for coating surfaces, or at least a portion of the surfaces, and curing of the coated surface to obtain partially or fully cured coated surfaces are also disclosed. Furthermore, articles of manufacture incorporating fully cured coated surfaces are disclosed, in particular motor vehicles and motor vehicle parts or accessories.

Abstract: The present invention provides degradable curable resin compositions containing no or essentially no volatile organic components. Oligomers for forming the coating compositions of the present invention are vinyl dioxolane end-capped oligomers having an enzyme degradable segment.

Abstract: An active energy ray curable ink-jet ink comprising an epoxy compound containing and alicyclic epoxy group and an epoxyfied fatty acid ester group, and a printed material used therewith.

Abstract: An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine oxide and an alpha hydroxy ketone. The formulation can cure rapidly, such as in about 20 minutes. The cured formulation can have a Tg above 150° C.

Abstract: The present invention relates to water soluble radiation activatable polymer resin formulations which are suitable to modify the absorption properties of fibrous materials and the polymer obtained by such radiation activatable polymer resins and the method of preparing such polymer. Fibrous materials made with radiation activatable resin formulations according to this invention are especially suitable for use in disposable absorbent articles.

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: Mixtures curable thermally and with actinic radiation and containing carbamate and/or allophanate groups, comprising (A) at least one of (A1) low molecular mass compounds, oligomers and polymers containing allophanate groups, carbamate groups, and carbamate and allophanate groups, and (A2) low molecular mass compounds, oligomers and polymers containing allophanate groups, carbamate groups, and carbamate and allophanate groups, and additionally allophanate- and/or carbamate-reactive functional groups, ?which are substantially or entirely free from reactive functional groups which contain at least one bond which can be activated with actinic radiation, and (C) at least one constituent containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation; with the proviso that if only (A1) is used, the mixtures further comprise (B) at least one of low molecular mass compounds, oligomers and polymers containing allophanate- and/or c

Abstract: A mixture and method for preparing a composition curable thermally and with actinic radiation comprising a binder free from carbon-carbon double bonds activatable with actinic radiation, at least one blocked or unblocked polyisocyanate having at least one soft, flexibilizing segment, and at least one unsaturated polyfunctional urethane that is free from isocyanate-reactive functional groups and contains on average per molecule more than four carbon-carbon double bonds activatable with actinic radiation and at least one hardening segment.

Abstract: An aqueous effect coating material, comprising (A) at least one water-soluble, -dilutable and/or -dispersible binder, (B) at least one effect pigment, and (C) at least one silicon compound of the general formula I [(E)nL]Si(R1)(R2)(R3)??(I) in which the index and the variables are defined as follows: n is an integer from 1 to 5; E is a reactive functional group; L is an at least divalent, linking, organic group; R1 is a substituted or unsubstituted cycloalkoxy, alkoxy, aryloxy, cycloalkyl, alkyl or aryl radical; and R2 and R3 independently of one another are substituted or unsubstituted cycloalkoxy, alkoxy or aryloxy radicals or hydroxyl groups; preparation process, and its use.

Abstract: A photopolymerizable composition comprising a polymer having a radical polymerizable group and a unit represented by the following formula (I): wherein Q1 represents a cyano group or COX2; X1 and X2 each independently represent —R— or a halogen atom, R represents a hetero atom; Ra and Rb each independently represent a hydrogen atom, a halogen atom, a cyano group or an organic residual group; X1 and X2 may be taken together to form a cyclic structure; Ra and Rb may be taken together to form a cyclic structure; and X1 and Ra or Rb may be taken together to form a cyclic structure.

Abstract: A polymerizable compound represented by formula (1): wherein each R1 independently represents at least one organic residue selected from the group consisting of alkylene groups, branched alkylene groups, cycloalkylene groups and arylene groups, R2 represents an organic residue derived from an alcohol compound, a phenol compound or a carboxylic acid compound, n represents an integer of 0 to 20, a production process of the polymerizable composition, a composition using the polymerizable compound, a cured product obtained by curing the composition and a production process of the cured product. The polymerizable compound exhibits a good adhesive property to a substrate such as glass and is imparted with radical polymerizability to enable heat curing and/or active energy ray curing.

Abstract: Ultraviolet (UV)-curable polyurethane compositions are provided which are made by reacting an isocyanate with an ultraviolet (UV)-curable polyol that is made by co-polymerizing an alkylene oxide, an unsaturated carboxylic acid or anhydride and a hydroxy functional compound and which has an ultra-low level of unsaturation. The inventive ultraviolet (UV)-curable polyurethane compositions may find use in or as coatings, adhesives, sealants, elastomers and the like.

Abstract: A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.

Abstract: A method for producing a solvent resistant, low-extractable, film from an actinic radiation curable homogenous aqueous composition containing a water soluble compound, having at least one alpha, beta-ethylenically unsaturated radiation polymerizable double bond, and water as essential components.

Abstract: A multicomponent system curable thermally and with actinic radiation (dual cure), comprising (A) at least one component comprising at least one constituent containing at least one isocyanate-reactive functional group and at least one functional group having at least one bond which can be activated with actinic radiation, and at least one vinylaromatic-allyl alcohol copolymer, and (B) at least one component comprising at least one polyisocyanate, and its use as a coating material, adhesive and sealing compound.

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: In the disclosed method for the reshaping (adornment, repair, covering, prosthetic extension, etc.) of essentially rigid, keratinaceous surfaces such as nail plates with a free radical-polymerizable acrylic ester, the free radical initiator contains an encapsulated compound of the formula III wherein R1 through R4 are identical to or different from each other and are hydrogen, a mononuclear carbocyclic aromatic group, a C1-C18 aliphatic group, a C1-C18 aliphatic radical substituted with a mononuclear carbocyclic aromatic group, a cycloaliphatic group or an aromatic radical having from 6 to 10 ring carbon atoms and up to five aliphatic or oxy- or oxo-aliphatic substituents, with the proviso that at least R3 or R4 is hydrogen. The compound of formula III, in chemically-curable systems is encapsulated into the polymer matrix and utilized in combination with a metal salt co-catalyst that is mixed with the polymer and, optionally, an organic buffering compound and a crosslinker.

Abstract: A novel thixotropic agent comprising urea crystals which comprises at least one compound containing at least one functional group having at least one bond which can be activated with actinic radiation; a novel process for preparing a thixotropic agent comprising urea crystals by reacting at least one primary and/or secondary amine and/or water with at least one polyisocyanate in a liquid organic medium consisting of or comprising at least one compound containing at least one functional group having at least one bond which can be activated with actinic radiation; and the use of the thixotropic agents to prepare coating materials, adhesives and sealing compounds curable thermally and with actinic radiation.

Abstract: A photosensitive composition for forming a dielectric of the present invention comprising inorganic particles, an alkali developable resin and additives, wherein the additives comprise a compound having a quinonediazido group (C1), a compound containing at least two alkyletherified amino groups in the molecule (C2) and a thermal acid generator (C3), or wherein the inorganic particles comprise inorganic superfine particles (A-I) having a mean particle diameter of less than 0.05 ?m and inorganic fine particles (A-II) having a mean particle diameter of not less than 0.05 ?m. The composition can be calcined at low temperatures to form a dielectric layer with high dimensional precision, said layer having a high dielectric constant and a low dielectric loss. Also provided are a dielectric and an electronic part prepared from the composition.

Abstract: A radiation curable powder coating composition is disclosed, which comprises a blend of (meth)acryloyl group containing polyphenoxy resin, a (meth)acryloyl group containing resin other than the polyphenoxy resin and other than a (meth)acryloyl group containing amorphous polyester and, eventually, a (meth)acryloyl group containing monomer or oligomer. These powders give coatings with improved chemical resistance and flexibility.

Abstract: Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.

Abstract: A coating material curable thermally and with actinic radiation, comprising at least one constituent (a1) containing at least two functional groups (a11) which serve for crosslinking with actinic radiation, and if desired at least one functional group (a12) which is able to undergo thermal crosslinking reactions with a complementary functional group (a22) in the constituent (a2), and at least one constituent (a2) containing at least two functional groups (a21) which serve for crosslinking with actinic radiation, and at least one functional group (a22) which is able to undergo thermal crosslinking reactions with a complementary functional group (a12) in the constituent (a1), and also, if desired, comprising at least one photoinitiator (a3), at least one thermal crosslinking initiator (a4), at least one reactive diluent curable thermally and/or with actinic radiation (a5), at least one coatings additive (a6), and/or at least one thermally curable constituent (a7), with the proviso that the coating material cont

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 composition suitable for preparing a biodegradable implant, comprising a crosslinkable multifunctional prepolymer having at least two polymerizable end groups, the said composition having a viscosity such that it is deformable at a temperature of 0° to 60° C. into a three-dimensional shape and being crosslinkable within the said temperature range. The prepolymer comprises a hydrophilic region and/or the composition further comprises an effective amount of a mineral biologically-active component delivery system and/or a biocompatible degradable porosity-inducing component.

Abstract: An energy-ray curing resin composition comprising a photopolymerizable resin component which can be cured by irradiation with an energy ray, a photopolymerization initiator component which makes it possible to cure the above photopolymerizable resin component by irradiation with an energy ray and a curing agent component used for curing at least one of the above photopolymerizable resin components by a method other than irradiation with an energy ray. To provide a high curability energy-ray curing resin composition which has a very high curing capacity as compared with those of conventional energy-ray curing resins and which is simple and has a high design freedom.

Abstract: A method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.

Abstract: The present invention discloses an ultraviolet light curable silver chloride compositions and method for making such a composition that may be used to produce a silver coating on a substrate. The disclosed composition does not contain any significant amount of volatile organic solvents that do not become incorporated in the active layer after curing.

Abstract: An unsaturated polyester compound having an ethylenically unsatureated group in its terminal and hydroxymethyl group in its side chain is obtained by the reaction of (a) a compound containing at least two oxetane rings in its molecule with (b) a compound containing at least two carboxyl groups in its molecule and (c) an unsaturated monocarboxylic acid in the presence of a reaction promotor in such a proportion that the ratio of said compound (b) to said compound (a) falls in the range of 0.1<(b)/(a)<1. BY further reacting (d) a polybasic acid anhydride with the resultant unsaturated polyester compound (A?), there is obtained an actinic energy ray-curable resin which is soluble in an aqueous alkaline solution. A photocurable and/or thermosetting composition is obtained by mixing the unsaturated polyester compound (A?) and/or the actinic energy ray-curable resin with a polymerization initiator (B).

Abstract: Compounds of formula Ia, Ib and Ic, (Ic), in which R, R1 and R2 are e.g. phenyl, naphthyl, anthracyl, phenanthryl or a heterocyclic radical, are suitable as photoinitiators which accumulate at the surface of coatings.