Sumitomo Rubber Industries Limited

Bando Chemical Industries, Inc.

Showa Denko K.k.

Takayuki Nagase

Takashi Miki

Tatsuhiro Tanaka

Keiji Ikeda

Makoto Hasegawa

Harushi Nagami

Hiroyuki Inai

Takahiko Okazaki

Sadaharu Nakamura

Takayuki Hattori

Katsumi Murofushi

Masayuki Sakamoto

Takao Wada

Hiroshi Ito

Soh Ishino

Ryota Kitago

Kensuke Washizu

Takuya Horiguchi

Yoshikazu Hosoda

Yuki Abe

Takahiro Kawachi

Hideyuki Kato

Masanobu Nakamura

Subaru Toya

Masako Nakatani

Hiroki Nakajima

Masaki Oshimo

Yuhei Yamashiro

Fumiya Kato

Toshio Arai

Yasuhiko Yoshida

Hideo Otaka

Kiyotaka Yamaguchi

Hideki Norisada

Arata Tani

Takayuki Yoshida

Jiro Yamashiro

Ayuko Yamada

Yuichi Takai

Yuuki Kawana

Saki Okudaira

Masataka Hiro

Shigeki Otsubo

Hiroshi Sanda

Nanaho Kami

Toshio Kaji

Kotaro Hirose

Nanaho Sakamoto

A tire repairing apparatus includes: a tire support portion rotatably supporting a pneumatic tire; and an application mechanism configured to apply an additive that has a softening effect, to a tread portion of the pneumatic tire supported by the tire support portion, thereby causing the additive to permeate into the tread portion.

Tire processing apparatus, tire repairing apparatus, repair sheet, tire repairing method, and tire manufacturing method

A pneumatic tirecomprises a carcassextending between bead cores of bead portions via a tread portionand sidewall portions, and a belt layerarranged on an outer side in a tire radial direction of the carcassand inside of the tread portion. The pneumatic tirefurther comprises a damping rubber bodyarranged between the carcassand the belt layer, and a noise damperarranged on an inner cavity surface of the tread portion. A width Win a tire axial direction of the damping rubber bodyis in a range of from 60% to 130% of a width Win the tire axial direction of the belt layer, and a water absorption rate of the noise damperis in a range of from 10% to 25%.

Pneumatic tire

A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire characterized by initiating kneading of a rubber component and a compound of the formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein Rrepresents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms, and Rand Rtogether with nitrogen bonded thereto form a succinimide group, a maleimide group or a phthalimide group.)

Preparation method of rubber composition for tire and production method of tire

The object of the present invention is to provide a tire which is excellent in steering stabilities at low temperature and at high temperature after aging without deterioration of the initial steering stabilities at low temperature and at high temperature. The present invention relates to a tire having a tread composed of a rubber composition comprising a softener comprising 5 to 50 parts by mass of an adhesive resin and 5 to 50 parts by mass of a xylene-based low-temperature plasticizer based on 100 parts by mass of a rubber component.

Tire

The present invention provides a pneumatic tire which provides a balanced improvement of fuel economy, abrasion resistance, and performance on ice and snow. Provided is a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including a butadiene polymer having a trans content of 45% by mass or higher and a vinyl content of 20% by mass or lower; silica; a silane coupling agent having two or more sulfur-containing functional groups capable of binding to diene rubbers; and a crosslinking agent having a C3 or higher alkylene group, a polysulfide group bonded to the alkylene group, and a functional group containing a benzene ring.

A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire is characterized by initiating kneading of a rubber component and a compound represented by the following formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein each of Rto Rindependently represents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 5 to 12 carbon atoms.)

A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire is characterized by initiating kneading of a rubber component and a specific polysulfide compound before kneading the rubber component and a silane coupling agent having a mercapto group.

The present invention aims to provide pneumatic tires that can achieve both abrasion resistance and low heat build-up properties. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including an isoprene-based rubber and a high-cis polybutadiene rubber having a cis content of 90% by mass or more; one or more types of carbon black; and sulfur, at least one of the one or more types of carbon black being produced from a feedstock oil that has a BMCI value of 150 or less and an aliphatic hydrocarbon content of 30% by mass or more, the BMCI value being calculated from the average boiling point T (&#xb0; C.) and the specific gravity D (60/60&#xb0; F.) relative to water at 60&#xb0; F. according to the equation below,=48,640/(+273)+473.7&#x2212;456.8.

Rubber composition and pneumatic tire

A capacitance-type sensor sheet used for measuring an amount of stretch deformation and strain and/or distribution of stretch deformation and strain may include a dielectric layer made of an elastomer, an obverse-side electrode layer laminated on the obverse surface of the dielectric layer, and a reverse-side electrode layer laminated on the reverse surface of the dielectric layer. The obverse-side electrode layer and the reverse-side electrode layer may each contain carbon nanotubes and the average thickness of the each of obverse-side electrode layer and the reverse-side electrode layer may be 0.1 &#x3bc;m or more and 10 &#x3bc;m or less. The obverse-side electrode layer and the reverse-side electrode layer may be formed by applying a coating solution containing carbon nanotubes. The obverse-side electrode layer and the reverse-side electrode layer may each include a plurality of band-shaped bodies.

Capacitance-type sensor sheet, method for manufacturing capacitance-type sensor sheet, and sensor

The present invention provides a pneumatic tire that achieves a balanced improvement in initial grip performance, grip performance during running, and abrasion resistance. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing a rubber component, a solventless acrylic resin, and a liquid xylene resin, and having a solventless acrylic resin content of 1 to 50 parts by mass and a liquid xylene resin content of 5 to 100 parts by mass, each per 100 parts by mass of the rubber component.

The present invention provides a cleaning blade for an electrophotographic device, which, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, can achieve sufficient abrasion resistance and sufficient cleaning ability (particularly cleaning ability under low-temperature and low-humidity conditions). The cleaning blade for an electrophotographic device includes an elastic rubber member; and a supporting member. The elastic rubber member has a double layer structure including an edge layer and a base layer. The edge layer is made of a material with a JIS-A hardness of 65&#xb0; to 72&#xb0; at 23&#xb0; C. and a rebound resilience of 10 to 35%. The base layer is made of a material with a JIS-A hardness of 70&#xb0; to 80&#xb0; at 23&#xb0; C. and a rebound resilience of 40 to 70%, the JIS-A hardness value being larger than the value of hardness of the edge layer.

Cleaning blade for electrophotographic device and method for manufacturing the same

An object of the present invention is to provide a liquid developing electrographic device roller suppressed in volumetric variation caused by a carrier. As a means for solving the problems, the present invention provides a liquid developing electrophotographic device roller including a shaft and an elastic material layer provided around the outer peripheral side of the shaft, wherein the elastic material layer is formed by using a polyurethane obtained by reacting a polyester polyol with a difunctional isocyanate.

Liquid developing electrophotographic device roller and liquid developing electrophotographic device

It is an object of the present invention to provide a conductive member for use in OA equipment which shows very stable conductivity in the volume resistivity range of 10to 10&#x3a9;&#xb7;cm, the conductivity of which is less dependent on the voltage applied and varies only slightly during continuous energization and upon changes in environmental factors such as temperature and humidity and which will not stain photoconductors due to bleeding or blooming. The present invention provides a conductive member for OA equipment, which is obtainable by molding a composition comprising a non-ether-based polyurethane and bis(trifluoromethanesulfonyl)imidolithium.

Conductive member for OA equipment

A conductive member for OA equipment (electrophotographic apparatus or electrostatic recording apparatus) which is obtainable from a composition comprising a non-ether-based polyurethane, carbon black and bis(trifluoromethanesulfonyl)imidolithium. The conductive member shows very stable conductivity in the volume resistivity range of 10to 10&#x3a9;&#xb7;cm, the conductivity of which is less dependent on the voltage applied and varies only slightly during continuous energization and upon changes in environmental factors such as temperature and humidity.

A charging member, which causes no damage on the surface of a member to be charged and which has excellent stability against environmental changes, formed of a moisture-permeable synthetic resin material as the surface layer thereof as well as a charging device including the foregoing charging member, the member to be charged, and a power supply for application of voltage to the charging member.

Charging member having a surface layer formed of moisture-permeable

Growing community of inventors

Kobe, Japan

Takayuki Nagase