Sekisui Plastics Co., Ltd.

Sekisui Kaseihin Kogyo Kabushiki Kaisha

Shuichi Sasahara

Takahiko Fujita

Kazuhiro Yoshikawa

Toshiki Ikeda

Haruhiko Matsuura

Ryo Iizuka

Yugo Katayama

Koichiro Okamoto

Junko Kubo

Yoshikazu Kobayashi

Takashi Higashi

Kengo Nishiumi

Takashi Motomura

Hiroyoshi Tanaka

Ayumi Kiyohara

Kazuhiro Yosikawa

Shinichi Wakamatsu

Yousuke Maeyama

Provided are hollow particles each having a shell including at least one layer, wherein the hollow particles have an average particle diameter of 10 to 200 nm and the at least one layer contains a vinyl-based resin.

Hollow particles, method for producing same, use thereof, and method for producing microcapsule particles

A nanoparticle-containing solution comprising nanoparticles of a metal oxide, and a solution obtained by dissolving, in an organic solvent, a phosphoric acid ester and a reactive group-containing carbonyl compound as hydrophobic treatment agents, the phosphoric acid ester having an alkylene oxide chain, and an alkyl group or allyl group at an end, and the reactive group-containing carbonyl compound having at least a vinyl group and a carboxyl group or cyclic ester group, and having a solubility parameter calculated by Fedors' method of 10.0 to 12.5.

Nanoparticle-containing solution and use thereof

A high-strength adhesive polymer gel comprising a polymer and polyhydric alcohol, wherein the polymer comprises a monopolymer of an acrylic monomer having an alkoxyalkyl group, or a copolymer of the acrylic monomer having an alkoxyalkyl group and another acrylic monomer which can be copolymerized with the acrylic monomer having an alkoxyalkyl group, and wherein the acrylic monomer having an alkoxyalkyl group makes up 50% by weight or more of a total amount of a polymerizable monomer.

High-strength adhesive polymer gel and adhesive tape

The invention aims at providing a polymeric hydrogel which is highly resistant to water washing. The aim is attained by a polymeric hydrogel comprising a polymeric matrix formed by copolymerizing a nonionic polymerizable monomer with a crosslinking monomer, characterized in that the polymeric matrix contains a wetting agent and water, at least 50 wt % of the wetting agent is constituted of a polymer prepared by polymerizing a polyhydric alcohol monomer component containing a trihydric or more alcohol monomer, and the polymer is a water-soluble one which has an average molecular weight of 150 to 4000 and satisfies the relationship: {(number of ether groups in the polymer+number of hydroxyl groups in the polymer)/number of carbon atoms present in the polymer}&#x2267;1/3.

Polymeric hydrogel

A gel adhesive composition of the invention contains a crosslinked water-soluble polymer, water, a moisturizer, an amphipathic polymer, a water-insoluble polymer having adhesiveness, and an electrolytic salt and the composition contains the water-insoluble polymer in an amount of 3 to 20% by weight and the amphipathic polymer in an amount of 0.05 to 7.0% by weight with respect to the total amount of the composition except water.

Gel adhesive compositions, method of making, and use thereof

An electrically conductive polymer gel is composed of a crosslinked polyacrylamide polymer including an electrolytic salt, water and a polyhydric alcohol uniformly dissolved therein, wherein the water and the polyhydric alcohol are major components of said polymer gel. The polyacrylamide series polymer in the gel has properties of being hydrophilic and being a nonelectrolyte. Therefore, a desirable connection between the gel and the electrode can be achieved with low impedance. Moreover, the polyhydric alcohol reduces the drying speed of the electrically conductive polymer gel, thereby preventing an increase in the impedance due to the dryout of the gel. Therefore, the electrically conductive polymer gel of the present invention permits an accurate measurement of an electrical phenomenon in an organism for long periods of time.

Electrically conductive polymer gel and the method for manufacturing the

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Nara, Japan

Shuichi Sasahara