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: 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: Disclosed is an actinic ray curable ink-jet ink comprising a an epoxy compound having at least two oxirane rings and a linkage chain linking the two oxirane rings, wherein the linkage chain has a branched structure.

Abstract: The invention relates to an optical retardation film comprising two layers of an anisotropic polymer adjacent to each other or adjacent to both sides of a substrate, characterized in that each layer exhibits a tilted structure with an optical symmetry axis having a tilt angle ? relative to the plane of the layer, to a means to produce substantially linear polarized light comprising such an optical retardation film and to a liquid crystal display comprising such an optical retardation film.

Abstract: The present invention relates to a hybrid type onium salt having an iodonium salt and a sulfonium salt in the molecule, Useful, for example, as a cationic type photopolymerization initiator and an acid generator for a chemically amplified resist and provides a hybrid type onium salt shown by the general formula [1]: and R4 is an alkyl group, an alkenyl group, an aryl group or an aralkyl group, which may have a substituent selected from the group consisting of a halogen atom, an alkyl group, a haloalkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group and an amino group which may be substituted or a group shown by the general formula [2]: and a polymerization initiator or an acid generator, comprising said onium salt.

Abstract: A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said composition has high photo contrast, high curing speed, controllable refractive index, low curing shrinkage, high thermo-optic coefficient, low volatility and high viscosity. A waveguide device is formed by patterning the photosensitive composition.

Abstract: The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from oligomers having pendent hydrophilic, poly(alkylene oxide) groups, pendent photoinitiator groups, and optionally polymerizable functional groups, and crosslinked by polyfunctional poly(alkylene oxides).

Abstract: The invention relates to primer coating compositions exhibiting very good adhesion properties on a large variety of substrates, in particular plastic substrates such as ophthalmic lenses made of organic glasses and which also impart good impact resistance properties to the thus coated substrates. The invention also concerns substrates coated with these primer coating compositions as well as a method for making such coated substrates.

Abstract: An ultraviolet activatable adhesive film comprising an epoxy resin, an ultraviolet activatable cationic polymerization catalyst and cationic polymerization inhibitor and water in an amount effective to suppress the cationic polymerization of the film and prolong the time from activation to thermal press-bonding after the ultraviolet activatable adhesive film is activated by irradiation by ultraviolet rays.

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 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 method for attaching a silicon die to a substrate using an adhesive containing an oxetane functionality and an electron acceptor or an electron donor functionality, represented by the formula in which R1 is a methyl or ethyl group, R2 is a divalent hydrocarbon, X and Y are independently a direct bond, or an ether, ester, or carbamate functionality, Q is a divalent hydrocarbon, and F is an electron donor or electron acceptor functionality.

Abstract: A photo-polymerizable ink-jet ink composition comprises a photo-polymerizable resin consisting of photo-polymerizable monomers, a photo-polymerization initiator, and a coloring material and is substantially free from a solvent. The photo-polymerizable monomers contain a hexa-functional monomer in a proportion falling within the range of 10% by weight to 30% by weight with respect to a total amount of the ink composition. The photo-polymerizable monomer other than the hexa-functional monomer is selected from the group consisting of a bi-functional monomer, a combination of a bi-functional monomer and a mono-functional monomer, a combination of a bi-functional monomer and a tri-functional monomer, and a combination of a bi-functional monomer, a mono-functional monomer, and a tri-functional monomer.

Abstract: A blend activatable with actinic radiation and solid at room temperature, comprising (A) at least one crystalline compound containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation, and (B) at least one amorphous compound containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation; process for its preparation, and its use.

Abstract: There are provided a vinyl compound which is excellent in heat resistance and electric characteristics and excellent in reactivity by introducing a vinyl group into a terminal of a bifunctional polyphenylene ether oligomer, and a cured product thereof which has a high glass transition temperature, has a low dielectric constant and a low dielectric loss tangent and has the excellent properties of polyphenylene ether.

Abstract: A photocurable composition which can be produced and cured while utilizing two different polymerization modes, can be used for bonding over a sufficiently long time period, and has excellent peel strength. The composition comprises (A) a compound containing a polymerizable unsaturated bond and giving a homopolymer having a glass transition temperature of 0 to 100° C., (B) a compound which has an unsaturated bond and is copolymerizable with the compound (A), (C) a compound having at least one cationically polymerizable group per molecule, (D) a polymerization catalyst which upon irradiation with light initiates the polymerization of the compounds (A) and (B), and (E) a cationic polymerization catalyst which upon irradiation with light initiates the cationic polymerization of the compound (C) at the cationically polymerizable group(s).

Abstract: Provided are radiation-cured, laminated materials, radiation-curable adhesive compositions suitable for use in forming the laminated materials, and methods of making laminated materials.

Abstract: An ultraviolet curable resin composition is provided, which is excellent in developing width and resolution, and exhibits good solder heat resistance and resistance to gold plating.

Abstract: A high refractive index, curable, synthetic resin composition comprising a core resin composition composed of a mixture of ethylenically unsaturated compounds, and an initiation system containing both photo and thermal initiators, particularly a photochromic resin composition which further includes at least one photochromic dye. Also a curing process, which includes a combination of multi-step radiation curing and thermal annealing. Articles produced of cured composition exhibit superior physical and, in appropriate cases, photochromic properties and can be easily mass produced on a commercial scale due to short processing time and use of readily available chemicals.

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: This invention provides novel methods for the formation of biocompatible membranes around biological materials using photopolymerization of water soluble molecules. The membranes can be used as a covering to encapsulate biological materials or biomedical devices, as a “glue” to cause more than one biological substance to adhere together, or as carriers for biologically active species. Several methods for forming these membranes are provided. Each of these methods utilizes a polymerization system containing water-soluble macromers, species, which are at once polymers and macromolecules capable of further polymerization. The macromers are polymerized using a photoinitiator (such as a dye), optionally a cocatalyst, optionally an accelerator, and radiation in the form of visible or long wavelength UV light. The reaction occurs either by suspension polymerization or by interfacial polymerization.

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: Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 through Class 4 compounds disclosed herein.

Abstract: An ultraviolet curable resin composition comprises (A) an ultraviolet curable resin obtained by reacting an epoxy group containing polymer (a), which is prepared by polymerizing an ethylenically unsaturated monomer component including an ethylenically unsaturated monomer (i) having an epoxy group, with an ethylenically unsaturated monomer (b) having a carboxyl group, and then reacting a resultant intermediate product with a saturated or unsaturated polybasic acid anhydride (c); (B) an epoxy compound having at least two epoxy groups in molecule; (C) a photopolymerization initiator; and (D) a diluent The ultraviolet curable resin includes 0.3 to 10 mol of a polymerizable unsaturated group in 1 kg thereof. A photo solder resist ink containing this resin composition has the capability of providing a permanent film with excellent flexibility and solder heat resistance, and is preferably used to manufacture flexible printed circuit boards.

Abstract: The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and inductors. 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: It is an object of the present invention to provide a compound having a (meth)acryloyl group that is suitably used in various applications, a process for producing such compound simply and under mild conditions, and an useful photo-curable composition and aqueous photo-curable composition comprising such compound.

Abstract: A fast-curing, low viscosity composition for coating an optical waveguide, more specifically, an optical fiber, and optical fibers coated therewith are disclosed. The coating composition is a radiation curable composition containing: a radiation curable oligomer, a free radical photoinitiator, and a mixture of reactive diluents including a low molecular weight (meth)acrylate having tri-, tetra-, penta- or higher functionality.

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

Abstract: A visible light photopolymerizable composition comprising a) an aryliodonium salt and b) a titanocene derivate. These compositions can be used together with an epoxide resin as a dental composition.

Abstract: Compositions that can be photopolymerized by a cationic initiator at an accelerated rate include at least one epoxy monomer, at least one cationic photoinitiator, and a photosensitizer/accelerator. The accelerator is a phenolic resole, or a compound having a structure according to the formula R1(CR2R3OH)n, wherein R1 is selected from phenyl, polycyclic aryl, and polycyclic heteroaryl, each optionally substituted with one or more electron donating group substituted phenyl; R2 and R3 are independently selected from hydrogen, alkyl, aryl, alkylaryl, substituted alkyl, substituted aryl and substituted alkylaryl; and n is an integer from 1 to 10.

Abstract: There is disclosed a method of easily producing a long-lived ion sensitive film having excellent durability and used in an ion sensor. The method starts with preparing a monomer mixture consisting chiefly of monomer units including a functional group and a second group of bonded atoms. The functional group has a function of identifying a certain chemical substance. The second group can become an active species that induces a polymerization or bridging reaction by being irradiated with an electron beam or radiation. Then, the monomer mixture is irradiated with the electron beam or radiation in a low energy range. Thus, the monomer mixture is polymerized.

Abstract: The present invention relates to UV-curable compositions, the process for preparing the compositions and to the use of the curable compositions. The compositions contain: a) at least one oxetane compound; b) at least one polyfunctional cycloaliphatic epoxy compound; c) at least one multifunctional hydroxy compound; and d) at least one curing agent.

Abstract: A photo-curing ink composition comprises a photocation-polymerizable substance, a photocation polymerization initiator, and a surfactant having a functional group. The surfactant is selected and the amount thereof is adjusted so that the acid value per 100 g of the ink composition is not more than 150 mg KOH. The surfactant is selected and the amount thereof is adjusted so that the amine value per 100 g of the ink composition is not more than 23 mg KOH. The ink composition is excellent in dispersion performance, storage stability, and curing performance.

Abstract: A composition and a method of use as a dental restorative. A series of highly alkoxylated tri-functional monomers are used as a low viscosity monomer in a photo- or self-curable dental composition that resulted in low polymerization shrinkage. The mechanical strength of the restorative material was not compromised. The restorative composition may be used as a dental filling material, a cement, a liner/base, or an adhesive.

Abstract: A curable composition includes a multifunctional (meth)acrylate; a substituted or unsubstituted arylether (meth)acrylate monomer; and a polymerization initiator. The compositions exhibit high refractive indices and, upon polymerization, the compositions provide films having excellent thermomechanical properties.

Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.

Abstract: There is provided an ultraviolet curing resin composition for an optical disk such as to improve the light resistance of reflective thin films made of silver or silver alloy and protect them against corroding and perform a high adhesive strength, in the optical disks. The composition comprises (1) a (meth)acrylate compound having a number average molecular weight of 700 to 3000 derived from epoxy resin, (2) a (meth)acrylate monomer having one or more of unsaturated ethylene groups, and (3) a polymerization initiator, such as 2,2-dimethoxy-2-phenylacetophenone, benzoylethyl ether and benzoylisobutyl ether, represented in the following general formula (I). Also, a tetrazole derivative may be additionally mixed into the composition.

Abstract: A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable composition; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid article of intermediate hardness with a photochromic substance; and subjecting the solid article of intermediate hardness to a further curing step to increase the hardness and provide a polymeric article imbibed with the photochromic substance.

Abstract: The invention relates to a radiation curable colored coating composition for coloring a coated optical fiber wherein the coating, when disposed and cured to surround an optical fiber coated with an internal coating, and when said colored fiber is coated with a matrix material and assembled into an optical fiber ribbon, said colored coating has a degree of adhesion to the internal coating which is higher than the degree of adhesion to the matrix material and said optical fiber assembled into said optical fiber ribbon shows, upon aging for at least two weeks in water at 60° C., an increase in the attenuation of the transmitted signal at 1550 nm of less than 0.05 db/km with respect to the attenuation of the assembled optical fiber measured before aging. The invention also relates to said colored coating composition when used in an optical fiber ribbon.

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: The present invention discloses an ultraviolet light curable transparent conductive composition and method for making such a composition that may be used to produce a transparent conductive coating on a suitable substrate. These coatings may be used in such applications as touch screens, membrane switches, TV screens, and VCRs. 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: Novel catalyst systems in cationically curable compositions provide colorless cationically cured compositions with improved degree of cure and thermal stability. The curable composition comprises at least one cationically curable monomer and a curing agent comprising Photocurative A or Photocurative B. Photocurative A comprises an effective amount of an accelerating photochemically active salt comprising a photochemically active cation and an accelerating anion, and an effective amount of an inhibiting non-photochemically active salt comprising a non-photochemically active cation and an inhibiting anion. Photocurative B comprises an effective amount of an inhibiting photochemically active salt comprising a photochemically active cation and an inhibiting anion, and an effective amount of an accelerating non-photochemically active salt comprising a non-photochemically active cation and an accelerating anion.

Abstract: Membranes made from amphiphilic copolymers are disclosed. The amphiphilic copolymers can be ABA copolymers, where one of A and B is hydrophilic and the other is hydrophobic. The copolymers may be crosslinked to form more stable structures. Crosslinking can be accomplished using a variety of methods, including end to end polymerization of copolymers having terminal unsaturated groups. Molecules such as membrane proteins can be incorporated into the membrane to allow the transport there through of selected components.

Abstract: The invention relates to a coating material that can be cured thermally or by actinic radiation and that contains at least one component (a1) with at least two functional groups (a11) which serve for cross-linking, by actinic radiation, and at least one functional group (a12) that can enter into thermal cross-linking reactions with the hydroxyl and/or thiol groups (a21) in component (a2), at least one branched cyclic and/or acyclic C9-C16 alkane (a2)) that is functionalized with at least two hydroxyl or thiol groups (a21) or with at least one hydroxyl and at least one thiol group, and optionally at least one photo initiator (a3), at least one initiator of the thermal cross-linking reaction (a4), at least one reactive diluent that is cured by actinic radiation and/or thermafly, at least one lacquer additive (a6), at least one thermally curable component (a7) and/or at least one organic solvent (a8).

Abstract: The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and inductors. 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: A cationic photocatalyst composition and a photocurable composition utilizing cationic polymerization are provided which can present sufficient open time and adhesion. The cationic photocatalyst composition contains a photosensitive onium salt and a compound represented by the following formula (1). The photocurable composition contains the cationic photocatalyst composition and an epoxy compound having at least one epoxy group per molecule. Formula (1) [Compound B] (wherein R and R′ are suitably selected from hydrogen, halogen, saturated hydrocarbon groups, unsaturated hydrocarbon groups, substituting groups comprising any suitable combination of elements such as carbon, hydrogen, oxygen, nitrogen and sulfur; and l and n each is an integer of 2 or larger).

Abstract: The present invention relates to a composition for coating optical fibers that includes a UV curable coating composition. The composition includes at least one component having at least one heterocyclic moiety capable of undergoing ring opening polymerization. The composition may also include at least one acrylate functional end group. The acrylate functional group may be on the same component as the heterocyclic moiety or on a second component. The cured composition has a Young's Modulus of at least about 100 MPa.

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: Photocurable compositions and process for providing form-in-place gaskets using automated placement followed by photocuring of a pattern of a non-silicone composition comprising a liquid polyolefin oligomer, a reactive diluent, and a curative. The form-in-place gasket, after curing, has a level of total outgassing components of about 10 &mgr;g/g to about 45 &mgr;g/g. The curative responds to actinic radiation and heat, and may contain a photoinitiator. Optionally a photocurable, form-in-place gasket according to the present invention further comprises a thixotropic filler in an amount from about 8.0 wt. % to about 12.0 wt. %, and preferably comprises a fumed silica.