The invention concerns a preform for a CAD/CAM machining apparatus having an upper face and a lower face a11d in which at least one of the cells is filled with a composite material to be machined by CAD/CAM, said material comprising long unidirectional fibers embedded in a cross-linked polymer matrix.

A method of forming a transfer film is described. The transfer film includes a template layer having a first major surface and an opposing second major surface. The second major surface includes a structured non-planar release surface. A backfill layer is disposed upon and conforms to the non-planar structured surface. The backfill layer includes a first cross-linked polymer and a plurality of multifunctional monomers, which cure via different and independent curing mechanisms.

Provided are talc-filled polycarbonate compositions, and methods for making the same. The talc-filled polycarbonate compositions include a polycarbonate, a talc, and a modifier composition. The modifier composition according to embodiments disclosed herein comprises (i) from 5 to 95 wt. % of an ethylene interpolymer comprising copolymerized units of ethylene and a comonomer selected from the group consisting of maleic anhydride, maleic acid monoester, maleic acid diester, fumaric acid monoester, carboxylic acid, itaconic acid, fumaric acid, itaconic acid monoester, and combinations thereof, and (ii) from 5 to 95 wt. % of an ethylene/methyl acrylate copolymer having a melt index () of greater than 15 g/10 min. The talc-filled polycarbonate compositions according to embodiments disclosed herein exhibit an improved dart impact.

The disclosure provides compositions comprising a polymer, a Lewis acid, and a solvent and methods of using the same for ring closing depolymerization of polymers.

The present invention relates to a method for fabricating microparticles by using a degassed gas-permeable micro-mold and discontinuous dewetting. The method for fabricating microparticles according to the present invention comprises the steps of: depressurizing and degassing a porous micro-mold including a plurality of micro-wells concavely recessed in a predetermined shape and size from one surface thereof (S100); loading a microparticle precursor solution on which the micro-wells are formed, and covering the microparticle precursor solution with a cover substrate (S200); moving the to cover substrate to the side (S300); and curing the microparticle precursor solution filled in the micro-wells, thereby synthesizing microparticles (S400).

Shape-programmable liquid crystal elastomers. The shape-programmable liquid crystal elastomers being synthesized by filling an alignment cell with liquid crystal monomers. The liquid crystal monomers align to a surface of the alignment cell and then are polymerized with a dithiol chain transfer agent. The alignment cell is configured to impose a director orientation on a portion of the shape-programmable liquid crystal elastomer. For some embodiments, liquid crystal elastomer laminates are prepared by arranging a plurality of liquid crystal elastomers such that a director orientation of each liquid crystal elastomer of the plurality is in registered alignment with an adjacent liquid crystal elastomer of the plurality. The arrangement is secured and the plurality of liquid crystal elastomers cured.

A polyacrylate random copolymer is synthesized from acrylic acid (AA), butyl acrylate (BA), methyl methacrylate (MMA), and 2-ethylhexyl acrylate (EHA). The copolymer is suitable for workup into a water emulsion and may be applied to a surface in liquid form, quickly drying to yield a peelable protective barrier film.

There is provided a method for producing hydrogel microparticles with spherical shape and having a narrow-disperse or mono-disperse size distribution. At least one temporary crosslinker such as those of formula (I), (Ila)-(Ilf) and at least one permanent crosslinker comprising two or more vinyl groups, such as: divinylbenzene (DVB), ethylene glycol dimethacrylate (EGDMA),diethyleneglycol dimethacrylate (DEGDMA), N,N-methylenebisacrylamide (MBA), oligo/poly ethyleneglycol dimethyacrylate, 1,4-butanediol dimethacrylate, and 1,6-hexanediol dimethacrylate are combined in an organic solvent having a polarity suitable for a precipitation polymerization to occur. The precipitation polymerization is allowed to take place without the addition of surfactant and/or stabilizer and/or the formed microparticles comprise less than 1% surfactant and/or stabilizer. These microparticles may be further functionalized to obtain amine and carboxylic acid units by functionalizing the monomers of the temporary crosslinkers. The functionalized microparticles are used for cryopreserving cells or as a vaccine delivery platform.

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The optical film (retardation film) has a good antireflection ability not only in a direction perpendicular to the film but also over a wide angle range and provides an optical film that can maintain its ability even after the film is subjected to high temperature. It can provide an elliptically polarizing plate and a display device that use the optical film. The optical film includes a first retardation layer and a second retardation layer. The first retardation layer is formed of a cured product of a polymerizable composition containing at least one compound A having at least three polymerizable groups and satisfying (formula 1) and at least one compound B satisfying (formula 2). The second retardation layer is formed of a cured product of a polymerizable composition containing at least one compound satisfying (formula 1) and/or at least one compound B satisfying (formula 2).

A first object of the present invention is to provide a curable composition capable of providing a cured substance in which an inorganic substance exhibits excellent dispersibility and which exhibits high thermal conductivity. A second object of the present invention is to provide a thermally conductive material formed by curing the curable composition and a device with a thermally conductive layer including the thermally conductive material.

The curable composition according to an embodiment of the present invention contains an inorganic substance selected from the group consisting of an inorganic nitride and an inorganic oxide, a compound which has a monovalent substituent selected from the group consisting of a boronic acid group, a boronic acid ester group, an aldehyde group, and a pyridinium group and has a molecular weight equal to or greater than 1,000, and a polymerizable monomer.