Ricoh Company, Ltd.

Nichiban Company Limited

Senju USA, Inc.

Takao Hiraoka

Soh Noguchi

Tsutomu Maekawa

Tomoko Hasegawa

Tamotsu Aruga

Masayuki Koyano

Eiji Noda

Okitoshi Kimura

Shizuka Kohzuki

Shinya Seno

Noriyasu Takeuchi

Mie Yoshino

Koji Kawahara

Chihiro Kenmochi

Masato Iio

Takahiro Ogawa

Mariko Tanaka

Toru Koga

Shuta Nakanami

Takashi Okada

Masahide Kobayashi

Mitsunobu Morita

Daisuke Miki

Tsuyoshi Asami

Tatsuki Yamaguchi

Takenori Suenaga

Daisuke Nose

Shin-ya Seno

Akiharu Isowaki

Norlyasu Takeuchi

In accordance with some embodiment of the present invention, a liquid composition set is provided. The liquid composition set includes a first liquid composition and a second liquid composition. The first liquid composition comprises: a compound represented by general formula (1): where X and Y each independently represent a functional group, and at least one of X and Y represents an electron-withdrawing functional group; and an acidic substance. The second liquid composition comprises a compound having vinyl group or acryloyl group.

Liquid composition set, cured product forming method, and liquid composition

Provided is a facial patch including a support, a pressure-sensitive adhesive layer, and a release layer in this order, in which (a) the pressure-sensitive adhesive layer satisfies the following conditions (a-1) to (a-3): (a-1) the pressure-sensitive adhesive layer contains a styrene-isoprene-styrene block copolymer, a tackifier resin, and a softening agent; (a-2) the ratio (mass ratio) of the styrene-isoprene-styrene block copolymer and the tackifier resin is 1:2 to 1:4; and (a-3) the content of the softening agent is 40% to 60% by mass; and (b) the support has elastic moduli with a Young's modulus of 0.01 GPa to 0.5 GPa, and also provided is a method for producing the facial patch, the method including a step of forming a pressure-sensitive adhesive layer on the upper surface of the release layer.

Facial patch

A curable liquid composition includes a monomer having an SI value of less than 3.0 and a photopolymerization initiator having a weight average molecular weight of 500 or greater, wherein the curable liquid composition is negative in skin sensitization.

Curable liquid composition, composition-accommodating container, liquid composition discharging device, cured material, and method of manufacturing cured material

An active-energy-ray-curable composition including at least one monofunctional (meth)acrylate, at least one multifunctional (meth)acrylate, and at least one chlorinated-olefin-structure-containing polymer.

Active-energy-ray-curable composition, active-energy-ray-curable ink composition, composition stored container, two-dimensional or three-dimensional image forming apparatus, method for forming two-dimensional or three-dimensional image, cured product, and laminated cured product

A composition contains an acrylamide compound A1 having an ester structure and a polymerization initiator B1 having a molecular weight of 800 or more.

Composition, accommodating unit, image forming device, and image forming method

A photopolymerizable composition, which contains: a monofunctional monomer having a viscosity of 5 mPa&#xb7;s or less at 25&#xb0; C.; one or more polyfunctional monomers including glycerol dimethacrylate; and a polymer free from a hydrophilic functional group, wherein a mass ratio (A/B) of an amount (A) of the polymer free from a hydrophilic functional group to an amount (B) of the polyfunctional monomer is greater than 0.80 but 3 or less.

Photopolymerizable composition, photopolymerizable ink, composition container, image or cured product forming method, image or cured product forming device, and image or cured product

A curable composition is provided comprising at least one monomer comprising a multifunctional monomer. Each monomer has a solubility parameter (SP) of from 7 to 11 (cal/cm), and a cured film produced by curing the curable composition has a glass transition temperature of from 0&#xb0; C. to 30&#xb0; C.

Curable composition, curable ink, storing container, two-dimensional or three-dimensional image forming device, two-dimensional or three-dimensional image forming method, cured product, printed matter, and adhesive label

A polymerizable inkjet ink, containing: photopolymerizable monomers containing a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator where the compound (A) is a (meth)acrylate compound, the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and the ink has a viscosity of 2 to 150 mPa&#xb7;s at a temperature of 25&#xb0; C. and a viscosity of 2 to 20 mPa&#xb7;s at 60&#xb0; C.

Photopolymerizable inkjet ink

An active-energy-ray-curable composition including at least one monofunctional (meth)acrylate, at least one multifunctional (meth)acrylate, and at least one polyester-structure-containing polymer. Preferable is an aspect where the active-energy-ray-curable composition further includes a polymer obtained through polymerization of at least one selected from the group consisting of styrene, styrene derivatives, acrylic acid esters, and acrylic acid.

Active-energy-ray-curable composition, composition stored container, two-dimensional or three-dimensional image forming apparatus, method for forming two-dimensional or three-dimensional image, and cured product

An active energy ray curable composition is provided. The active energy ray curable composition includes a polymerizable monomer, a polymer component, a polymeric dispersant, and a pigment. The active energy ray curable composition is non-aqueous. The active energy ray curable composition has a yield value of 0.1 Pa or less either when having an initial weight or when being dried to have a weight 70% by mass of the initial weight.

Active energy ray curable composition, active energy ray curable ink, inkjet ink, stereoscopic modeling material, active energy ray curable composition container, two-dimensional or three dimensional image forming apparatus, two-dimensional or three-dimensional image forming method, cured product, and processed product

A cured composition prepared from a photopolymerizable composition that includes diethyleneglycoldimethacrylate and alkoxy-modified (meth)acrylic acid ester having an n not less than 9. The n is an average polymerization degree of an alkoxy part of the (meth)acrylic acid ester.

Photopolymerizable composition, photopolymerizable ink jet ink, and ink cartridge

To provide a photopolymerizable inkjet ink, which contains photopolymerizable monomers containing at least one selected from the following compound group (A) compounds of which are negative for skin sensitization, and at least one selected from the following compound group (B) compounds of which are negative for skin sensitization, wherein the compound group (A) is a compound group consisting of caprolactone-modified dipentaerythritol hexaacrylate, polyethoxylated tetramethylol methane tetraacrylate, ethylene oxide-modified bisphenol A diacrylate, caprolactone-modified hydroxy pivalic acid neopentyl glycol diacrylate, polypropylene glycol diacrylate [CH&#x2550;CH&#x2014;CO&#x2014;(OCH)n-OCOCH&#x2550;CH(n&#x2248;12)], hydroxyethyl acryl amide, trimethylol propane trimethacrylate, and tricyclodecane dimethanol dimethacrylate, and the compound group (B) is a compound group consisting of ethylene oxide-modified phenolacrylate, isostearyl acrylate, ethylene oxide-modified trimethylol propane trimethacrylate, stearyl methacrylate, and glycerin dimethacrylate.

A photopolymerizable composition, which includes a photoradical polymerization initiator and photopolymerizable monomers containing glycerol dimethacrylate, where an amount of the glycerol dimethacrylate in the photopolymerizable monomers is 25% by mass or greater, and pencil hardness of a cured product is F or harder, where the cured product is formed by curing a coating film through irradiation with light of a wavelength region corresponding to a UVA region, with a light to dose of 800 mJ/cm, where the coating film is formed by coating the photopolymerizable composition on a base so as to have an average thickness of 30 &#x3bc;m.

Photopolymerizable composition, photopolymerizable inkjet ink, and ink cartridge

To provide a non-aqueous photopolymerizable composition, which contains: a polymerizable monomer; a polymerization initiator; and a polyether-modified polysiloxane compound represented by the following general formula (1): &#x3c;General Formula (1)&#x3e; (CH)Si&#x2014;O&#x2014;[Si(CH)&#x2014;O]&#x2014;[Si(CH)(X)&#x2014;O]&#x2014;Si(CH)where X represents R(CHO)(CHO)&#x2014;R', R is a single bond or an alkylene group, R&#x2032; is a hydrogen atom or an alkyl group, and a to d each denote an average polymerization degree including a case where either c or d is 0.

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Kanagawa, Japan

Takao Hiraoka