Polymerizable resin compositions and methods are provided for preparing shaped parts such as dental prosthetic devices and non-prosthetic dental appliances. The compositions are amenable to 3D printing and the polymerized compositions are capable of exhibiting improved strength properties, increased toughness, and good flexibility.

The present invention provides a composition which is used to form a cured film that is disposed on a medical device and a medical device with a cured film, which are capable of suppressing both the adhesion of platelets and the adhesion of cells. A composition according to the embodiment of the present invention is a composition which is used to form a cured film that is disposed on a medical device, and which contains a compound represented by Formula (1).

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A fabrication method and application of topological elastomers with highly branched structures, low modulus and high elasticity. The topological elastomers comprise dendritic macromolecules. The fabrication method includes direct crosslinking, post-crosslinking, grafting, and copolymerization. The performance of the elastomer can be easily tuned via changing the topology of the polymer network. The breakthrough of this invention lies in that these topological elastomers with highly branched structures are having low modulus and high elasticity, which would expand its application in the field of elastomer. Notably, the variety of topological elastomers, the versatility of curing chemistries, the availability of a wide variety of monomers, and the various polymerization methods are enabling the fabrication of topological elastomers with feasibility and efficiency.

The invention relates to a curable two- or multi-part composition with (a) optionally an at least bifunctional epoxy-containing compound; (b) an at least bifunctional nitrogen-based curing agent suitable for epoxy curing; (c) a radiation-curable hybrid compound having both one or more radiation-curable methacrylate groups and one or more epoxy groups; (d) a radical photoinitiator; (e) optionally an accelerator for epoxy curing, and (f) optionally further additives. In addition, the invention relates to a method for the bonding, casting, molding or coating of substrates using the composition.

Provided is a masking tape to be used at the time of formation of an electromagnetic wave shield, which is excellent in followability to irregularities, and which is capable of being peeled off from an irregular surface without any adhesive residue. The masking tape for forming an electromagnetic wave shield includes a pressure-sensitive adhesive layer that is increased in modulus of elasticity through active energy ray irradiation to 20 times or more as high as that before the active energy ray irradiation, wherein the pressure-sensitive adhesive layer has a modulus of elasticity after the active energy ray irradiation of 500 MPa or less.

A biodegradable based polymers for the production of biodegradable medical applications is provided. The biobased material has a copolymer constituted by dextran modified with glycidyl methacrylate and poly (#-caprolactone) modified with 2-isocyanatoethylmethacrylate, which are combined in different formulations and used to produce membranes, 3-D scaffolds and hollow tubes that can be used as biomedical devices for diverse applications such as drug delivery systems, tissue engineering scaffolds, repair and regeneration of peripheral nerves, among others.

The present disclosure provides dual curable compositions having both radiation curing and shadow curing mechanisms. The compositions comprise silicon-organic hybrid polymers having rapid shadow curing by a 2 part isocyanate-polyol reaction and/or a 2 part cyclic carbonate-amine reaction. The compositions can be used as adhesives or coatings. The use of the compositions according to the disclosure is particularly preferred for use in electro-optical components especially for automobile display adhesives applications.

A curable resin composition for producing a three-dimensional object formed of a cured resin product comprises a polyfunctional urethane (meth)acrylate having a weight-average molecular weight of 1,000 or more and 60,000 or less; a monofunctional radically polymerizable compound having one radically polymerizable functional group in a molecule; a polyfunctional radically polymerizable compound other than the polyfunctional urethane (meth)acrylate; rubber particles; and a radical polymerization initiator. The monofunctional radically polymerizable compound includes a monofunctional acrylamide-based compound, and the content of the polyfunctional radically polymerizable compound other than polyfunctional urethane (meth)acrylate (particularly one having a radically polymerizable functional group equivalent of less than 300 g/eq) is controlled.

An electrophotographic photosensitive member, which is suppressed in occurrence of fogging and is excellent in abrasion resistance. In the electrophotographic photosensitive member, an outermost surface layer of the electrophotographic photosensitive member comprises a polymerized product of a composition comprising at least a polyrotaxane and a monomer having a polymerizable reactive group, and a chain molecule of the polyrotaxane has two blocking groups at both terminals thereof, and a (meth)acryloyloxy group of a cyclic molecule of the polyrotaxane forms a bond.

A composition is provided including a compound (A) represented by Formula (1) and a compound (B) represented by Formula (2), wherein the compound (B) is contained in an amount of 0.00002 to 0.2 parts by mass with respect to 100 parts by mass of the compound (A):

(R.sub.1—COO).sub.n—R.sub.2—(NCO).sub.m   (1)

(in Formula (1), R.sub.1 is an ethylenically unsaturated group having 2 to 7 carbon atoms; R.sub.2 is an (m+n)-valent hydrocarbon group having 1 to 7 carbon atoms; and n and m are each an integer of 1 or 2)

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(in Formula (2), R is (—R.sub.2—(OCO—R.sub.1), and R.sub.1 and R.sub.2 are the same as those in Formula (1)).