Tokai Rubber Industries, Ltd.

Sumitomo Riko Company Limited

Wintech Polymer Ltd.

Kazutaka Katayama

Hiroaki Ito

Koji Mizutani

Motoshige Hibino

Shinji Iio

Hidehito Ikeda

Ayumu Ikemoto

Hiroyoshi Mori

Naoki Oyaizu

Takehiko Taguchi

Koyo Murakami

Atsuo Miyajima

Yorihiro Takimoto

Takashi Yajima

Takahiro Nishiyama

Junichiro Suzuki

Yukinori Wakazono

Shinya Nishikawa

Hiroshi Hayami

Kazushige Sakazaki

Akira Takayanagi

Tomonori Hayakawa

Tomohide Ito

Shigeaki Takamatsu

Koji Senda

Tomoki Inoue

Eiichi Daikai

Yoshiki Kodaka

Tetsuji Narasaki

Masashi Noda

Kazuhito Kasahara

Yoshio Okado

Masayoshi Nakano

Yasumitsu Miyamoto

Ryo Minoshima

Naotoshi Miyahara

Hideji Fukaya

Chiaki Yuzuriha

Shoji Arimura

Yasuhito Suzuki

Kota Kato

Ryo Ikegami

Tomohiro Fukuta

Hiroaki Itoh

Keita Asai

Tokunori Kobayashi

Hiroaki Nakashima

A capacitive coupling sensor () is equipped with a sensor unit () which has: a detection electrode layer () which generates capacitance between the detection electrode layer () and a detection target, a shield electrode layer (), and an insulation layer () which is arranged between the detection electrode layer () and the shield electrode layer (), wherein the insulation layer () has a cross-linked polymer obtained by cross-linking of a thermoplastic polymer. The capacitive coupling sensor () has high heat resistance, can be made thinner, and has an excellent tactile quality.

Capacitive coupling sensor

A piping connection structure which assigns a function to restrict a pipe body from coming off to a member other than a resin tube, improves in sealing performance and can suppress the amount of fuel permeation. A resin tube comprises a tube body portion; a first diameter-expanding portion formed to increase in diameter from an axial end of the tube body portion and axially positioning seal members by holding the seal members in an axial gap with a retainer; and a second diameter-expanding portion formed to further increase in diameter from the first diameter-expanding portion, and to contact an outer circumferential side of the seal members and be connected to the retainer while in contact with the retainer. Thickness of the first diameter-expanding portion is equal to or greater than thickness of the tube body portion.

Piping connection structure

A resin composition for fuel tubes includes an aromatic polyamide resin (A), an aliphatic polyamide resin (B), and an aminoethylated acrylic polymer (C), wherein a polyamide resin obtained by an amine-exchange reaction between (A) and (B) is contained, and at least one selected from the group consisting of the polyamide resin, (A), and (B) is bound to (C). The resin composition for fuel tubes can achieve both resistance to calcium chloride and fuel barrier properties at the same time and has excellent molding processability.

Resin composition for fuel tubes, and fuel tube

Provided is a connector which can facilitate tuning of frequency of pulsation to be reduced and prevent sealing performance from degrading when a piston moves. A pulsation reducing member adopts a structure in which the piston moves in a cylinder. The cylinder has an annular flange portion projecting in a radially inner direction of a hollow cylindrical shape. An elastic sealing member is sandwiched in a compressed state between an end surface of the flange portion of the cylinder and an end surface of the piston. An urging body is disposed in a region in the cylinder on a side of the piston opposite to a passage and applies urging force to move the piston toward the passage and compress the elastic sealing member.

Connector

A resin composition for a refrigerant-transporting hose, including: a semi-aromatic polyamide resin (A) as a main component; an aliphatic polyamide resin (B); and an elastomer (C), in which the aliphatic polyamide resin (B) is dispersed in a phase formed of the semi-aromatic polyamide resin (A) and the elastomer (C), which is not crosslinked, is incorporated in the form of particles into the dispersed aliphatic polyamide resin (B). Thus, excellent refrigerant permeation resistance and acid resistance, and at the same time, for example, extrusion processability and flexibility, are obtained.

Resin composition for refrigerant-transporting hose and method of producing the resin composition, and refrigerant-transporting hose

A resin-made fuel inlet pipe that has a light weight, excellent impact resistance, and causes no fuel leakage includes at least one resin layer comprising a resin composition containing (A) a high-density polyethylene (HDPE) or a linear short-chain branched polyethylene; (B) a polyethylene polymerized with a metallocene-based catalyst; and (C) a carbon black. A weight mixing ratio ((A)/(B)) is in a range of from 10/90 to 90/10; a content of component (C) is in a range of from 0.1 to 5 parts by weight with respect to 100 parts by weight of a total of components (A) and (B); a tissue (Y) comprising component (B) is inserted between linear crystalline tissues (X) comprising component (A) to expand an interval between the tissues (X); and component (C) is dispersed in the tissue (Y).

Resin-made fuel inlet pipe, and method for producing same

A resin-made fuel inlet pipe having a light weight excellent impact resistance, and causing no fuel leakage, includes: a tubular inner layer; and an outer layer laminated on an outer peripheral surface thereof, in which: the inner layer is formed of a resin having fuel resistance; the outer layer is formed of a resin (A) having a tensile elongation at 8 m/s measured by a high-speed tensile test of 200% or more; and the inner layer and the outer layer are in a substantially non-adherent state.

Resin-made inlet pipe and method of producing the pipe

A method for manufacturing a hose with a protector layeron the outer periphery of a tubular polyamide resin layerincludes steps of: preparing a rubber composition for forming the protector layer by separately preparing a first rubber material containing components (A) to (C) and a second rubber material containing components (a) and (b) but substantially free of a sulfur vulcanization agent and mixing them in a mixer; and forming the protector layerby continuously vulcanizing unvulcanized rubber after continuous extrusion of the rubber composition onto the outer periphery of the previously formed polyamide resin layer

Method for manufacturing hose with protector layer

A refrigerant-transporting hose includes a tubular inner layerin contact with a fluorine refrigerant, an intermediate layerformed on an outer periphery surface thereof, and at least one rubber layerandformed on a further outer periphery thereof, and the inner layeris made of a inner layer material including maleic anhydride-modified polypropylene as a main component and the intermediate layeris made of a intermediate layer material including polyamide resin as a main component.

Refrigerant-transporting hose

A refrigerant-transporting hose having excellent low-refrigerant permeability, acid resistance, and flexibility includes a tubular resin layer for contacting with a refrigerant, in which the resin layer is formed of a resin composition containing (A) an aliphatic polyamide; (B) a semi-aromatic polyamide; and (C) an elastomer, in which a weight mixing ratio 'component (A)/component (B)' between the component (A) and the component (B) is 95/5 to 60/40, and the component (A) and the component (B) are in a compatible state.

A hose for gasohol fuel including an inner layer containing at least one selected from (A) to (D) below and an alcohol-cut off layer including a rubber composition containing a butyl rubber, a hydrated hydrotalcite compound, and a 1,8-diazabicyclo(5,4,0)undecene-7 salt (DBU salt):

Hose for gasohol fuel

In a hose having a resin layer as an inner layer, a plasma treatment is performed on the inner surface of the inner layer and a connecting portion of an end part of the hose to thereby perform surface modification. Then, a sealing layer made of an elastic material is coated on and bonded to the inner surface of the connecting portion.

Hose with sealing layer, direct-connect assembly including the same and method of manufacturing the same

Provided is an in-tank tube excellent in pressure-resisting performance. The in-tank tube is an in-tank tube () for an automotive fuel of a monolayer structure, the in-tank tube () for an automotive fuel being installed in a fuel tank () and having a construction that absorbs displacement of the fuel tank () and vibration of a fuel pump (). Further, the in-tank tube () for an automotive fuel is formed into a monolayer structure formed of a resin material using an aliphatic polyamide resin as a main component, and has the following pressure-resisting characteristic (X): (X) when silicone oil is charged as a pressurizing medium into the in-tank tube immersed in a test liquid (Fuel C:methanol=85:15 (volume basis)) at 80&#xb0; C. for 168 hours, both ends of the in-tank tube are each blocked with a test pipe, and a pressure test is performed at a rate of pressure increase of 1.0 MPa/min and room temperature, a pressure (burst pressure) at which the in-tank tube bursts or the test pipe disconnects is 2.8 MPa or more.

In-tank tube for automotive fuel and method of producing the tube

An automotive fuel hose is disclosed including an inner layer, an intermediate layer and an outer layer provided in this order on an outer peripheral surface of an innermost layer of a fluororesin. The inner layer and the outer layer each include of an amine-modified polyamide resin, where the intermediate layer is a resin composition including the following components: (A) a polyphenylenesulfide resin as a major component; (B) an acid-modified polyolefin resin; (C) an unmodified polyolefin resin; and (D) an epoxy resin. The proportion of the component (B) in the resin composition is 4 to 12 wt % and the proportion of the component (C) in the resin composition is 4 to 12 wt %, wherein the proportion of the component (D) in the resin composition is 1.5 to 5 wt %.

Automotive fuel hose

A heat resistant air hose which is excellent in oil-bleeding resistance and causes reduced vibration noise is provided. The heat resistant air hose has an inner layer formed of an inner layer material comprising silicone rubber as a major component thereof; and an outer layer provided on an outer periphery of the inner layer and formed of an outer layer material comprising acrylic rubber as a major component thereof, and the acrylic rubber contains not less than 50 wt % of ethyl acrylate and has a dissipation factor (tan &#x3b4;) of not less than 0.09 at 150 &#xb0; C. and a storage elastic modulus (E') of not less than 7.0 MPa.

Heat resistant air hose

Growing community of inventors

Kasugai, Japan

Kazutaka Katayama