Abstract: The present invention relates to a (meth)acrylated compound (A) prepared from: (i) a polyol constituent, (ii) a polyacid constituent and (iii) one or more (meth)acrylating compounds, wherein the polyol constituent comprises at least 30% by weight of one or more cyclic ether polyols, relative to the total weight of the polyol constituent, and wherein the compound (A) optionally further contains one or more moieties selected from the group consisting of (poly)caprolactone-containing moieties (ai), (poly)lactide- and/or (poly)glycolide-containing moieties (aii), moieties providing epoxide groups (aiii) and moieties providing alkylene oxide groups containing from 2 to 4 carbon atoms (aiv). The compounds of the invention are in particular suited for the making of radiation curable coating compositions and inks less prone to migration.

Abstract: The invention relates to an alkyd resin composition comprising components: (A) at least an auto-oxidisable alkyd resin component comprising unsaturated fatty acid or its derivative, selected from: (i) alpha, beta-unsaturated ester-functional alkyd resin; (ii) combination of a alpha, beta-unsaturated ester functional material and an alkyd resin; and (iii) mixture of components (i) and (ii); Wherein the alkyd has an oil length of at least 20% unsaturated fatty acids; (B) a daylight photoinitiator; (C) a metal drier; and (D) optionally a liquid medium selected from the group consisting of an organic solvent, water, non-volatile diluent and mixtures thereof; wherein if the liquid medium is present and is: a) substantially based on organic solvent and/or diluent then the VOC is <300 g/l, or b) substantially based on water then the VOC is <100 g/l.

Abstract: A flattening film forming composition for a hard disk that can prevent a magnetic material from migrating to the nonmagnetic layer, including a photopolymerizable coating material containing at least one polymer selected from a homopolymer that has a divinyl aromatic compound-derived unit structure and a copolymer having the unit structure or containing a mixture of the polymer and a photopolymerizable compound. The photopolymerizable compound may include an acrylate group, a methacrylate group, or a vinyl group. The polymer may be a copolymer further containing an addition polymerizable compound as a component to be copolymerized. A method for producing a hard disk, including: a first step of forming projections and recesses on a magnetic body; a second step of coating the projections and recesses with the flattening film forming composition; and a third step of flattening the coating by means of etching and exposing a surface of the magnetic body.

Abstract: The present invention provides a dental material, a dental material composition and a dental restorative material that exhibit small polymerization shrinkage particularly during curing and are producible at low cost on the industrial scale. The dental material of the present invention includes a specific urethane (meth)acrylic compound represented by Formula (1) described below.

Abstract: An actinic radiation activated, thermally curable solid film adhesive is disclosed that includes a film forming polymeric binder, a cationically curable resin, and a cationic photoinitiator. The solid film adhesive is capable of being processed at temperatures up to 120° C. prior to exposure to actinic radiation without curing, has a latency period at room temperature following activation of the initiator, and is curable at temperatures above 50° C. following activation of the initiator.

Abstract: Several low observable aqueously dispersed polymeric materials with dual cure properties utilizing both ambient and UV curing modalities are provided. Compositions are suitable for coating a substrate such as those used in military, hunting, or other applications for which low visibility is desired. A water dispersible low observable curable composition includes an aqueously dispersed hydroxyl functional polyurethane resin, an aqueously dispersed urethane acrylate resin; and one or more low solar absorbing pigments. In some embodiments, the acrylate resin present at less than 50% total resin weight. Preferred pigments include those that are cobalt free, do not absorb significant UV radiation during cure, and provide reduced surface temperature resulting in low IR signature. Illustrative pigments include chromium oxide green, magnesium ferrite, red iron oxide (Fe2O3), black iron oxide (Fe3O4), zinc ferrite (ZnFe2O4), or combinations thereof.

Abstract: The present disclosure generally relates to processes, apparatuses and custom catalysts designed to depolymerize a polymer. In one embodiment, the present invention relates to a de-polymerizing apparatus, catalysts and reaction schemes to obtain useful monomers including fuel products by “in situ” reactions using coupled electromagnetic induction.

Abstract: A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

Abstract: A UV cured varnish, and a process for preparing the same, said UV cured varnish including an epoxy acrylic resin, a polyurethane acrylic resin, a polymerizable monomer, a filler, a photoinitiator, and an adjuvant, wherein the polymerizable monomer comprises a fluorine containing polymerizable monomer and a silicon containing polymerizable monomer. The UV cured varnish can significantly improve the film forming performance. The formed film has a significantly improved performance including hardness, perspiration resistance. The UV cured varnish thus obtained is especially suitable for touch screen and can greatly extend the life of the touch screen.

Abstract: A radiation-curable composition comprising (meth)acrylic monomers and/or oligomers, photoinitiators, and a nonreactive composite additive, wherein the nonreactive composite additive comprises a) a biobased hydroxyurethane additive of formula (1): R1[—NH—COO—CR2H—CR3H(OH)]2??(1) wherein R1 is a residue of the biobased primary diamine, and R2 and R3 are the same or different and are selected from the group consisting of H, alkyl, and hydroxyalkyl; and b) a silane-based hydroxyurethane additive of formula (2): (R6)3-n(OR5)nSi—R4—NH—COO—CR2H—CR3H(OH)??(2) wherein R2 and R3 are the same as stated above, R4 is generally an aliphatic group having from 1 to 6 carbon atoms, R5 and R6, independently, are hydrocarbon radicals containing from 1 to 20 carbon atoms and selected from the group consisting of aliphatic, cycloaliphatic, and aromatic groups or combinations thereof, and n is equal to 1, 2, or 3.

Abstract: The present invention concerns a method and a device for curing a thermosetting polymer. The method comprises the steps of irradiating the thermosetting polymer with microwaves at a first power level so as to heat up the thermosetting polymer by dielectric heating, and when the thermosetting polymer reaches a first predetermined temperature, irradiating the thermosetting polymer with microwaves at a second power level, substantially higher than the first power level, to further heat up the thermosetting polymer by dielectric heating. The device comprises an enclosure for receiving the thermosetting polymer, a microwave emitter for emitting microwave radiation into the enclosure, and a control unit for controlling a microwave emission power of the microwave emitter according to the abovementioned method.

Abstract: The photocuring efficiency of an N-oxyazinium salt photoinitiator is increased by mixing it with an organic phosphine as a photoinitiator efficiency amplifier, and with an aryl aldehyde or alkyl aldehyde having a molecular weight of less than 1000. This mixture or photoinitiator composition can be used to cure acrylates or other photocurable compounds, particularly in an oxygen-containing environment.

Abstract: The present invention relates to a photo-curable organic-inorganic hybrid composition, more particularly to a photo-curable organic-inorganic hybrid resin composition having superior physical properties such as UV resistance, chemical resistance, light transmittance, adhesive property, insulating property, heat resistance, flatness and water resistance and in particular, having excellent heat resistance and adhesive property enabling the composition to endure a thermal deformation caused by a processing temperature change during post-process after a film is cured. Thus, the composition of the invention is suitable for use as an insulating material and an encapsulating material for a protective film of optical devices including display devices and semiconductors.

Abstract: The present invention allows for a photocurable composition which exhibits stable physical characteristics in a heat resistance test and an oil resistance test, and exhibits good debubbling properties and excellent workability. A photocurable composition including components (A) to (C). component (A): a compound that has a polymer obtained from a (meth)acrylic monomer as a main skeleton, and has at least two (meth)acrylic groups in the molecule component (B): a (meth)acrylic monomer including a component (b-1) and/or a component (b-2) component (b-1): a (meth)acrylic monomer having a hydroxyl group in the molecule, in an amount of 0.1 to 50 parts by mass with respect to 100 parts by mass of the component (A), component (b-2): a (meth)acrylic monomer having a saturated alicyclic skeleton in the molecule, in an amount of 0.1 to 10 parts by mass with respect to 100 parts by mass of the component (A), component (C): a photoinitiator.

Abstract: The present invention aims to provide a method for modifying a surface of a rubber vulcanizate or a thermoplastic elastomer, which can impart excellent sliding properties and excellent durability against repeated sliding motion, and allow the surface to maintain the sealing properties, without using expensive self-lubricating resins. The present invention relates to a method for modifying a surface of an object of a rubber vulcanizate or a thermoplastic elastomer, the method including: Step 1 of forming polymerization initiation points on the surface of the object; and Step 2 of radical-polymerizing a monomer starting from the polymerization initiation points to grow polymer chains on the surface of the object.

Abstract: An ultraviolet (UV) crosslinkable acrylic pressure sensitive adhesive comprises an acrylic copolymer and a cationic photoinitiator. The acrylic copolymer comprises pendant reactive functional groups. The pressure sensitive adhesive formed from the acrylic copolymer with the pendant reactive functional groups result in high green strength and/or high temperature holding strength of the adhesive.

Abstract: The present invention relates to a fixing member including a surface layer containing PFA, the fixing member being excellent in wear resistance and having high release properties to a toner. The fixing member includes a base member, an elastic layer provided on the surface of the base member, and a surface layer, wherein the surface layer contains a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer having a particular partial structure, and has a surface having a contact angle of 67 degrees or more as measured in a mixed liquid for a wetting tension test having a wetting tension of 31.0 mN/m.

Abstract: A multifunctional polymerizable ionic liquid is described comprising an anion and a cationic group having at least two ethylenically unsaturated polymerizable groups, each bonded to the cationic group via a divalent non-alkyl linking group. The multifunctional linking groups independently comprise a heteroatom such as oxygen or nitrogen. The linking groups may independently comprise one or more linkages such as an amide, urea, and more typically a urethane or ester linkage. The ethylenically unsaturated polymerizable groups are typically (meth)acrylate groups. Coatings and coated articles are also described.

Abstract: Disclosed are intermediate products (semifinished products) for polymer materials, comprising surface-modified components, said polymer materials based on the intermediate products, a method for producing the intermediate products, and the use thereof.

Abstract: Hot melt compositions include non-aromatic cyclic (alkyl)acrylates and low acid number waxes. Upon application of actinic radiation, the hot melt compositions cure to form resists. They may be stripped from substrates with high alkaline strippers. The hot melt compositions may be used in the manufacture of printed circuit boards and photovoltaic devices.