Nitto-denko Corporation

Ryota Masuda

Masayuki Satake

Kenichi Okada

Yoshiki Ikeyama

Naofumi Kosaka

Kaori Mizobata

Keisuke Shimokita

Kensuke Tani

Asuka Onohara

Nobuaki Maruoka

Mizuho Nagata

Masatsugu Soga

A stick-on biosensor capable of acquiring satisfactory biological information is provided. The stick-on biosensor includes a pressure-sensitive adhesive layer and an electrode part, said pressure-sensitive adhesive layer having a stick-on surface to be attached to a subject; a base material layer provided on the side opposite the stick-on surface of the pressure-sensitive adhesive layer; and an electronic device provided on the base material layer and configured to process a biological signal acquired through the electrode part. A structure, which includes the pressure-sensitive adhesive layer, the electrode part, and the base material layer, has a flexural rigidity of 0.010 [MPa&#xb7;mm/mm] or higher, and an adhesive strength of the electrode part to adhere to the subject is greater than 0.6 [N/cm] and less than or equal to 5.0 [N/cm].

Stick-on biosensor

Provided is an adhesive member to be adhesively fixed through pressure which has both position adjustability and adhesiveness and is capable of producing a sufficient adhesive strength in addition to the position adjustability. The adhesive member comprises a support, a pressure-sensitive adhesive layer provided on one surface of the support, and a plurality of protrusion elements arranged, in spaced-apart relation to each other, on a principal surface of the pressure-sensitive adhesive layer on a side opposite to the support. Each of the protrusion elements is composed of an aggregation of a plurality of cohesive particles, wherein the adhesive member has a frictional force of 0.4 N/cmor less, with respect to a stainless steel plate serving as an adherend, as measured when the protrusion elements are in contact with a surface of the adherend, and a shear adhesive strength of 45 N/cmor more.

Adhesive member to be adhesively fixed through pressure

Disclosed is an air-permeable filter with an adhesive layer. This air-permeable filter is imparted with oil repellency and includes: a porous membrane having a surface coated with an oil-repellent agent; and an adhesive layer disposed on the surface. The oil-repellent agent contains a linear fluorine-containing hydrocarbon group represented by (1) &#x2014;RCFCHCFor (2) &#x2014;RCF, where Rand Rare each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group. This air-permeable filter is imparted with oil repellency without significantly reducing its adhesive strength to the adhesive layer.

Oil repellency-imparted air-permeable filter with adhesive layer

Growing community of inventors

Ibaraki, Japan

Ryota Masuda