In the present invention, a photocurable composition for a support material for an inkjet 3D printer comprises a water-soluble ethylenically unsaturated monomer containing an ionic group and a counter ion, and a water content is not more than 10 mass % in 100 mass % of the photocurable composition for a support material. It is preferably that the photocurable composition for a support material for an inkjet 3D printer further comprises a photopolymerization initiator.

A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.

Methods of synthesizing multilayer structures, including multilayer capsules, tubes and hair-covered substrates, are provided. A substrate is provided comprising a polymerization initiator. The initiator-loaded substrate is exposed to a solution comprising a monomer and crosslinker. The initiator diffuses outwardly from the substrate, thereby initiating polymerization of the monomer and forming a layered structure comprising a polymer portion disposed on an exterior surface of the substrate. The process may be repeated for a selected number of cycles, thereby forming a multilayer structure having a selected number of layers. The composition, thickness and properties of each layer are selectively controlled. Multilayer structures formed in accordance with the methodologies are also provided.

Provided are a molded article excellent in a Charpy impact strength and a method of producing the same. A molded article contains a methacrylic resin composition containing at least one methacrylic resin, in which a pencil hardness is 2 H or higher, and a craze formation time is 19 seconds or longer, the craze formation time being measured by sequentially performing the following steps 1) to 5): 1) preparing a test piece that is a strip-shaped molded article, the test piece having a through-hole provided on one end side in a longitudinal direction; 2) heating and drying the test piece; 3) clamping the other end side of the test piece in the longitudinal direction and fixing the test piece to a fixing table so that extending directions of an upper surface and a lower surface of the test piece coincide with a horizontal direction; 4) applying ethanol one or more times to a predetermined region of the upper surface while generating a surface stress on the upper surface by applying a load calculated by a specific equation in a vertical direction at a position where the through-hole of the test piece is provided, and maintaining a state in which the ethanol is applied; and 5) obtaining the craze formation time by measuring a time from the start of the application of the ethanol to the formation of the craze in the test piece.

The invention relates to a device for producing a knee spacer component by curing bone cement paste. The invention also relates to methods for producing knee spacer components using such a device.

Compositions which are curable by, for example, exposure to radiation to form useful articles such as three-dimensionally printed objects are prepared using multistage polymers, polymerizing organic substances and (meth)acrylic polymers. The multistage polymer is effective to toughen and impact modify the cured articles, yet the compositions prior to curing are relatively low in viscosity and agglomerate content even at high loadings of multistage polymer.

The present invention relates to a polymeric composition suitable for watercrafts or nautical applications. The present invention relates also the use of a transparent polymeric composition for watercrafts. More particularly the present invention relates to a transparent (meth)acrylic polymer composition and relates also to a process for preparing such a (meth)acrylic polymer composition, its use in watercrafts and watercraft comprising it.

The present invention provides a composition comprising at least one monomer of Formula I, at least one monomer of Formula II, and at least one alkali metal salt of Formula III and/or Formula IV ##STR00001## The present invention also provides a process of fabricating a three-dimensional object, comprising i) dispensing a build material that comprises a model material composition and a support material composition; ii) curing the layer dispensed in step i); iii) repeating step i) and ii) so as to sequentially form a plurality of layers in a configured pattern corresponding to the shape of the object; and iv) removing the support material from the build material.

A contact lens includes a body, having the plurality of monomers including at least some silicone monomer units including at least one zwitterionic distributed throughout the body. The contact lens includes a front surface and a back surface, where the silicone monomer including at least one zwitterionic group can be present in a greater concentration nearest the front surface than the back surface or a point therebetween. The contact lens can be formed by casting a polymer mixture containing the silicone monomer including at least one zwitterionic group.

The present invention relates to a method for producing a polymer, polymers and metal-polymer composites produced by the method. The method comprises providing one or more polymerisable monomers and providing a substrate comprising an activated metal surface, the activated metal surface comprising one or more compounds capable of initiating polymerisation of the one or more polymerisable monomers. The method comprises contacting the activated metal surface and the one or more polymerisable monomers to polymerise the one or more polymerisable monomers, thereby producing the polymer.