Mitsubishi Chemical Corporation

Shogo Koga

Kazuma Inoue

Naoyuki Uchida

Shuichi Akasaka

Yukio Kato

Katsuhiko Sugiura

Takumi Watanabe

Hiroo Miyauchi

Naomi Fujimori

Akemi Hosokawa

Noriaki Terada

Kazunari Matsumura

Hiroshi Mitani

Tsuyoshi Nagasaka

Haruki Koshitouge

Masashi Miura

Yuya Saito

Masanari Nakayama

Kohji Uehara

A polyorganosiloxane may be high in elasticity and/or strength. The polyorganosiloxane may include an M unit (RRRSiO) at a content of 10 mol. % or more relative to the total of silicon and a T unit (RSiO) at a content of 80 mol. % or less relative to the total of silicon. The polyorganosiloxane may have an alkoxy group bound, at a content of 0.07 to 4 wt. %, based on total polyorganosiloxane weight, and a reactive functional group bound to silicon, with 3 to 12 of the reactive functional groups bound on a number basis per a molecular weight of 1000 of the polyorganosiloxane. The weight loss of the polyorganosiloxane at 110° C. under 0.15 torr for 2 hours may be 5 wt. % or less.

Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same

An object of the present invention is to provide a structural body that has high vibration damping and high sound-insulating performance which exceeds mass law while being relatively light weight, that is highly flexible in design, excellent in versatility, and easy to manufacture so that productivity and economic efficiency can be improved. The object thereof is achieved with a sheet member of a sheet having a thickness of 1 mm or less and having rubber elasticity and a resonant portion, wherein the resonant portion is provided in contact with a surface of the sheet, the resonant portion including a base part and a weight part, and the weight part being supported by the base part and having a larger mass than the base part.

Sound insulation sheet member and sound insulation structure using same

To provide a sound insulation sheet member which is excellent in sound insulation performance in a low frequency band and which has a compact configuration. A sound insulation sheet memberincluding a substrateand a concavo-convex structureplaced on at least one surface of the substrate, in which the concavo-convex structureis provided by repeatedly arranging a plurality of units each defined as a concavo-convex unit shapeincluding a linear convex portion, in one direction at substantially constant intervals on the surface of the substrate

Sound insulation sheet, manufacturing method thereof, and sound insulation structure

An object of the present invention is to provide a structural body that has high vibration damping and high sound-insulating performance which exceeds mass law while being relatively light weight, that is highly flexible in design, excellent in versatility, and easy to manufacture so that productivity and economic efficiency can be improved. The object thereof is achieved with a sheet member having a sheet of rubber elasticity and a resonant portion, wherein the resonant portion is provided in contact with a surface of the sheet, the resonant portion including a base part and a weight part, and the weight part being supported by the base part and having a larger mass than the base part.

An object of the present invention is to provide a sound-blocking sheet member that is relatively lightweight, has high sound-blocking performance overwhelming the law of mass action, and is excellent in terms of manufacturability and durability. The sound-blocking sheet member includes at least a sheet and a plurality of resonance portions. The resonance portion is provided in contact with a sheet surface of the sheet, and the resonance portion includes a weight portion and a base portion. The weight portion is supported by the base portion and has a larger mass than the base portion, and the weight portion has a penetration portion. The base portion is in contact with a surface on a resonance portion front end side of the weight portion and covers the weight portion.

Sound-blocking sheet member, sound-blocking structure using same, and method for manufacturing sound-blocking sheet member

An object of the present invention is to provide a sound insulating sheet member that has high sound-insulating performance which exceeds mass law while being relatively light weight, that is highly flexible in design, excellent in versatility, and easy to manufacture so that productivity and economic efficiency can be improved, and a sound insulating structural body or the like using the same. The object thereof is achieved by using a sound insulating sheet member comprising at least a sheet having rubber elasticity and a plurality of resonant portions, wherein the resonant portions are provided in contact with a sheet surface of the sheet, each of the resonant portions including a base part and a weight part, and the weight part being supported by the base part and having a larger mass than the base part.

Provided are a polyorganosiloxane high in elasticity, high in strength and the like. The polyorganosiloxane is a polyorganosiloxane including an M unit (RRRSiO) at a content of 10% by mol or more relative to the total of silicon and a T unit (RSiO) at a content of 80% by mol or less relative to the total of silicon, the polyorganosiloxane having an alkoxy group bound and a reactive functional group bound to silicon, wherein the polyorganosiloxane has the alkoxy group bound at a content of 0.07 to 4% by weight based on the total weight of the polyorganosiloxane and has 3 to 12 of the reactive functional groups bound on a number basis per a molecular weight of 1000 of the polyorganosiloxane, and the weight loss of the polyorganosiloxane in heating at 110&#xb0; C. under a reduced pressure of 0.15 torr for 2 hours is 5% by weight or less.

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Chiyoda-ku, Japan

Shogo Koga