Canon Kabushiki Kaisha

Kyohei Wada

Takayuki Hiratani

Ryo Ogawa

Chiaki Nishiura

Seiji Okada

Kazuho Saeki

To provide a low-viscosity curable resin composition capable of obtaining a cured product excellent in impact resistance. The curable resin composition contains core-shell type rubber particles, a radically polymerizable compound having one or more radically polymerizable functional groups in the molecule, and a radical polymerization initiator, and the core-shell type rubber particles have a core layer and a shell layer containing a polymer having an alicyclic hydrocarbon group in a side chain, and the radically polymerizable compound contains a radically polymerizable compound having a molecular weight of 500 or more in a ratio of 2 mass % to 70 mass %.

Curable resin composition and cured product thereof, and method for producing three-dimensional shaped product

A curable resin composition includes (A) a specific curable resin and (C) a curing agent, and further includes (BI) 0.1 parts by mass or more and 20 parts by mass or less of a polyhydric alcohol having 2 to 5 hydroxyl groups, based on based on 100 parts by mass of the curable resin (A); (BII) a cyclic compound having 3 to 6 reactive groups and a reactive group equivalent of 100 g/eq or more and 300 g/eq or less; or (BIII) a specific oxetane compound in a mass ratio of the curable resin (A) to the oxetane compound (BIII) being 5:5 to 9:1.

Curable resin composition

Provided is a curable resin composition with which a cured object with low water absorbency and good impact resistance and heat resistance can be formed and which is preferably usable in three-dimensional shaping. The curable resin composition contains: a polyfunctional urethane (meth)acrylate (A); a hydrophilic monofunctional radical-polymerizable compound (B); a hydrophobic monofunctional radical-polymerizable compound (C); rubber particles (D); and a radical polymerization initiator (E), and the content of the rubber particles (D) is 8 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of radical-polymerizable compounds.

Curable resin composition and cured object thereof

A curable resin composition comprising; component (A) monofunctional 2-(allyloxymethyl) acrylic acid or its ester; component (B) a polyfunctional radically polymerizable compound having an isocyanurate ring; component (C) a radically polymerizable compound; component (D) rubber particles; and component (E) a radical polymerization initiator, the component (C) is a radically polymerizable compound different from the component (A) and the component (B); and when the sum of the component (A), the component (B) and the component (C) is 100 parts by mass, the component (B) is 20 parts by mass or more to 80 parts by mass or less and the component (C) is 0 parts by mass or more to 40 parts by mass or less.

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.

Curable resin composition and cured product thereof

A curable resin composition that is capable of forming a cured product having impact resistance and a high elastic modulus, and has a low viscosity, thereby being suitable for three-dimensional shaping. The curable resin composition contains: (A) an α-(unsaturated alkoxyalkyl)acrylic acid or an ester thereof; (B) a bifunctional radically polymerizable oligomer; optionally (C) a radically polymerizable compound other than the component (A) and the component (B); (D) rubber particles; and (E) a radical polymerization initiator, wherein the component (A) is represented by the following formula (1).

Curable resin composition and method of manufacturing article

A curable resin composition includes: an oxetane compound (A) having one oxetanyl group as a cationic polymerizable reactive group and at least one hydroxyl group; a cationic polymerizable compound (B) which is a cationic polymerizable compound other than the oxetane compound (A) and has two or more cationic polymerization reactive groups; a rubber particle (C); and a curing agent (D), wherein the oxetane compound (A) is contained at 30 parts by mass or more and 60 parts by mass or less, based on 100 parts by mass of total mass of the oxetane compound (A) and the cationic polymerizable compound (B), and the rubber particle (C) has a group capable of reacting with the oxetane compound (A) or the cationic polymerizable compound (B) on a surface of the rubber particle (C).

Curable resin composition and manufacturing method of three-dimensional object using the same

A three-dimensional-forming photo-curable composition includes a (meth)acrylic compound having a (meth)acryloyl group; a photo-radical generator; and a polyrotaxane having a plurality of cyclic molecules having at least one of a (meth)acryloyl group and a hydroxyl group.

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Tokyo, Japan

Kyohei Wada