Sumitomo Rubber Industries Limited

Hideyuki Okuyama

Takayuki Hattori

Tetsuo Mizoguchi

Yoshihisa Mizumoto

Masakazu Tanaka

Mutsuki Sugimoto

Toshiaki Sakaki

Toshiro Matsuo

Hiroaki Nakano

Kei Tajima

Akihiro Mine

Takashi Marui

Takeshi Ishimaru

Hirokazu Nishimori

Toshihiro Tamura

Noriaki Hitomi

Tetsuya Kojimoto

Takashi Horio

Takeshi Ishmaru

Yoshimichi Tanaka

The paper feed roller according to the present invention is made of a thermoplastic elastomer composition containing an ester thermoplastic elastomer urethane or an ether thermoplastic elastomer urethane (E) having microrubber hardness (type A) of not less than 60 and not more than 80 and a plasticizer (P) in a mass ratio E/P of 70/30 to 50/50.

Paper feed roller

A thermoplastic elastomer composition which has excellent cleanability and is suitable for use as a medical rubber supply. It is characterized by comprising a rubber ingredient dynamically crosslinked with a crosslinking agent and a matrix which comprises a thermoplastic resin and in which the crosslinked rubber ingredient has been dispersed, the crosslinking agent comprising a triazine derivative.

Thermoplastic elastomer composition and production process

The present invention provides an artificial grass granulated infill excellent in productivity, workability, and recyclability, and an artificial grass structure using the same. A hollow cylindrical granulated infillwhich has a height h of 3.0 mm or less and an outside diameter of 3.0 mm or less and satisfies the condition: &#x3c6;=0.40 to 0.85, where &#x3c6;presents the outside diameter and &#x3c6;represents the inside diameter, is made from a material comprising a synthetic resin having a hardness of 60 or more in accordance with JIS-K6253 type A.

Artificial grass granulated infill and artificial grass structure using the same

The present invention provides a conductive roller whose outermost layer is made of a vulcanized rubber composition. The vulcanized rubber composition contains epichlorohydrin rubber and chloroprene rubber as a rubber component thereof and 0.2 to 5 parts by mass of each of a thiourea-based vulcanizing agent and a vulcanization retarder consisting of N-(cyclohexylthio)phthalimide for 100 parts by mass of the rubber component.

Conductive roller which is mounted on an image-forming mechanism of an electrophotographic apparatus

A conductive thermoplastic elastomer composition comprising a component (A) containing a thermoplastic resin or/and a thermoplastic elastomer; a component (B) comprising an ionic-conductive agent containing an ethylene oxide-propylene oxide copolymer or/and an ethylene oxide-propylene oxide-allyl glycidyl ether copolymer and a metal salt contained in the ethylene oxide-propylene oxide copolymer or/and the ethylene oxide-propylene oxide-allyl glycidyl ether copolymer; and a component (C) comprising an ethylene-acrylic ester-maleic anhydride copolymer.

Conductive thermoplastic elastomer composition, method of producing same, and molding

An elastomer composition is prepared that contains a rubber component (A) containing at least one of diene rubber and EPDM rubber; a mixture composition (B) containing hydrogenated styrene thermoplastic elastomer and olefin resin; and a styrene thermoplastic elastomer (C) having double bonds partly left, wherein the styrene thermoplastic elastomer (C) is blended at a ratio of not less than 2 parts by weight and not more than 100 parts by weight with respect to 200 parts by weight of the mixture composition (B), and the rubber component (A) is dispersed by dynamic crosslinking in the mixture composition (B) having the styrene thermoplastic elastomer (C) dispersed therein. A rubber roller is formed by using the elastomer composition. The elastomer composition is excellent in wear resistance, and the rubber roller made of the elastomer composition is excellent in wear resistance at the time of idling rotation.

Elastomer composition and rubber roller

A conductive elastomer composition having rubber-like elasticity and flexibility and thermoplastic-resin-like moldability and realizing a high conductivity. The conductive elastomer composition includes a thermoplastic elastomer composition (A) containing a compound (A1) composed of a thermoplastic resin and/or a thermoplastic elastomer and a compound (A2), composed of a crosslinkable rubber and/or a crosslinkable thermoplastic elastomer, dispersed in the compound (A1) by dynamically crosslinking the compound (A2); and an ionic-conductive agent (B), containing a metal salt and a polyether-containing block copolymer resin, dispersed in the thermoplastic elastomer composition (A). The conductive elastomer composition may contain carbon black (C).

Conductive elastomer composition and method of producing same

An ink tube () for an ink jet printer is formed by using a thermoplastic elastomer composition, having a Shore-A-hardness of not more than 70, which comprises an olefin thermoplastic resin and a rubber component, containing not less than 30 wt % of butyl rubber, which is dispersed finely by dynamic vulcanization the rubber component in the olefin thermoplastic resin. It is preferable to extrude the thermoplastic elastomer composition tubularly by a resin extrusion method.

Ink tube for ink jet printer

A paper-feeding roller ( ) formed by cylindrically molding a thermoplastic elastomer composition containing a thermoplastic resin or a thermoplastic elastomer in which a rubber or a thermoplastic elastomer that can be crosslinked is dispersed by dynamic crosslinking. A surface layer of the paper-feeding roller ( ) contains titanium oxide at not less than 1.5% nor more than 50% in a volume fraction.

Paper feeding roller

The present invention provides a thermoplastic elastomer composition comprising a high-molecular-weight thermoplastic elastomer, a low-molecular-weight thermoplastic elastomer affinitive for the high-molecular-weight thermoplastic elastomer, and a rubber component. The ratio of the number-average molecular weight (Mn1) of the high-molecular-weight thermoplastic elastomer to the number-average molecular weight (Mn2) of the low-molecular-weight thermoplastic elastomer is not less than 1.2 nor more than 500. The rubber is dynamically cross-linked and dispersed in the thermoplastic elastomers. Further, the present invention provides a thermoplastic elastomer composition consisting of a mixture of a thermoplastic elastomer composition (F) containing a high-molecular-weight styrene thermoplastic elastomer having a number-average molecular weight not less than 80,000; a composition (G) consisting of a polar termination-modified thermoplastic elastomer and/or a polar-nonpolar graft polymer; and a rubber compound (H) containing EPDM as a main component thereof. The rubber component of the mixture is dynamically cross-linked and dispersed in the thermoplastic elastomers.

Thermoplastic elastomer composition and rubber roller composed thereof

Paper-feeding roller

A rubber composition containing 20 parts by weight-200 parts by weight of hydrogenated styrene thermoplastic elastomer and poly-olefin for 100 parts by weight of rubber which is dynamically vulcanized with a resin vulcanizing agent to disperse the rubber in a mixture of the hydrogenated styrene thermoplastic elastomer and the poly-olefin.

Rubber composition and method of manufacturing rubber composition

The present invention provides pavement and a paving material in which a large quantity of aggregates are bound with one another by a hot melt of thermoplastic resin powder, and also provides producing methods of such pavement and such paving material. The thermoplastic resin powder is neither limited in pot life, nor influenced by working conditions and weather conditions at the time when pavement is laid at a job site. Accordingly, uniform strength can be given to the resulting pavement or paving material. Further, the resulting pavement or paving material is excellent in weather resistance, elasticity and flexibility. Thus, the pavement of the present invention can be suitably used as pavement at play ground, parks, roads and the like. It is also easy to amend pavement, as necessary, after laid. The pavement producing method of the present invention can readily and efficiently produce the pavement.

Growing community of inventors

Kobe, Japan

Hideyuki Okuyama