Nitto-denko Corporation

Yuka Sekiguchi

Masahiko Ando

Shigeki Ishiguro

Satomi Yoshie

Takahisa Konishi

Hitoshi Takahira

Tomoaki Hishiki

Yusuke Komoto

Saori Yamamoto

Kohei Oto

Rie Hayashiuchi

Asuka Endo

Hiromoto Haruta

Hiroki Senda

Ryoko Asai

Toshitaka Suzuki

Masato Shirai

Masato Yamagata

Takumi Yutou

Tomoko Sudo

Kenjiro Niimi

Yusuke Kamano

Shinya Hashiguchi

A sound reducing system () includes at least one sound reducing speaker for radiating a sound wave for sound reduction. The at least one sound reducing speaker includes a piezoelectric speaker (). The piezoelectric speaker () includes a piezoelectric film (), a fixing face () in contact with a support supporting the piezoelectric speaker (), and a film holding portion () disposed between the piezoelectric film () and the fixing face (). (i) The film holding portion () includes a pressure-sensitive adhesive layer and the fixing face () is formed of a surface of the pressure-sensitive adhesive layer and/or (ii) the film holding portion () includes a porous body layer.

Sound reducing system

A piezoelectric speaker () includes: a piezoelectric film (); a fixing face () for fixing the piezoelectric film () to a support; and an interposed layer () disposed between the piezoelectric film () and the fixing face (). The interposed layer () has a holding degree of 5×10N/mor less.

Piezoelectric speaker

The present invention provides a foam body suitable for producing a cultured meat having a good texture. The foam body of the present invention includes alginic acid and/or an alginate. The foam body has an elastic modulus M, as determined by a test, of 8&#xd7;10Pa or less. In the test, the foam body is immersed in 22&#xb1;3&#xb0; C. water for 4 hours to prepare a specimen having a post-immersion thickness of 5&#xb1;1 mm. Stress and strain caused in the specimen are measured by applying a load to the specimen for 5 seconds to compress the specimen in a thickness direction at 0.5 mm/sec. A stress caused in the specimen when the specimen is compressed by 10% of an initial thickness is determined, and a value obtained by dividing the stress by a corresponding strain is determined as the elastic modulus M.

Foam body and method for manufacturing the same

A piezoelectric speaker-forming laminate () includes: a piezoelectric film (); a pressure-sensitive adhesive face (); an interposed layer () being a porous body layer and/or a resin layer disposed between the piezoelectric film () and the pressure-sensitive adhesive face (); and a release layer () joined to the pressure-sensitive adhesive face (). The pressure-sensitive adhesive face () is disposed in such a manner that at least a portion of the piezoelectric film () overlaps the pressure-sensitive adhesive face () when the piezoelectric film () is viewed in plan. The piezoelectric film () and the interposed layer () are allowed to be fixed to a support () as a piezoelectric speaker or a portion of a piezoelectric speaker by sticking the pressure-sensitive adhesive face () from which the release layer () has been removed to the support ().

Piezoelectric speaker-forming laminate

Polylactic acid film or sheet having tear strength so as not to break or tear during, for example, production or processing of the film or sheet or winding thereof into a roll, and causing neither melt nor deformation at high temperatures more than 100&#xb0; C. In the polylactic acid film or sheet, the tear strength is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than &#xb1;3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than &#xb1;3% in the flow direction (MD).

Polylactic acid film or sheet, and pressure-sensitive adhesive tape or sheet

A film for a pressure-sensitive adhesive tape is a film for a pressure-sensitive adhesive tape, including a non-pressure-sensitive adhesive layer on one surface of a plastic film, where the non-pressure-sensitive adhesive layer includes a mixed layer of a silicone and a (meth)acrylic polymer; and the (meth)acrylic polymer has a calculated Tg of 10&#xb0; C. or more.

Film for pressure-sensitive adhesive tape and pressure-sensitive adhesive tape

A surface protective film that exhibits superior adhesiveness to an adherend and exhibits only small differences in peel strength according to the surface state of an adherend is provided. The surface protective filmis provided with an acrylic pressure-sensitive adhesive (PSA) layeron one side of a support, and satisfies the following conditions: a thickness reduction ratio (indentation strain E) when a compressive stress of 0.195 MPa is applied for 10 minutes to a laminateobtained by laminating 24 of the protective filmsis 7.0% or more, and a ratio (E/E) of Eto a thickness reduction ratio (permanent strain) Ethat remains 10 minutes after the stress is released is 30 or less; and a peel strength Son a plain TAC polarizing plate is two times or less a peel strength Son a TAG polarizing plate that has been subjected to AG treatment.

Surface protective film

Growing community of inventors

Osaka, Japan

Yuka Sekiguchi