Abstract: An object of the present disclosure is to provide an actuator having even better durability than the conventional actuator. Specifically, an actuator has an actuator main body constituted of a cylindrical tube capable of expanding/contracting by hydraulic pressure and a sleeve for covering an outer peripheral surface of the tube, the sleeve having a cylindrical structure formed by cords woven to be disposed in predetermined directions, wherein: the inner diameter r0 (mm) of the tube, the thickness t (mm) of the tube, the storage elastic modulus E? (MPa) of the tube at 25° C., and the mesh aperture ratio A of the cords constituting the sleeve in a pressurized state satisfy the following formula (1): 50?E?×(t/r0)/A?600??(1).

Abstract: An object of the present disclosure is to provide an actuator having even better durability than the conventional actuator. Specifically, an actuator has an actuator main body constituted of a cylindrical tube capable of expanding/contracting by hydraulic pressure and a sleeve for covering an outer peripheral surface of the tube, the sleeve having a cylindrical structure formed by cords woven to be disposed in predetermined directions, wherein: the inner diameter r0 (mm) of the tube, the thickness t (mm) of the tube, the storage elastic modulus E? (MPa) of the tube at 25° C.

Abstract: The present disclosure provides a hydrogen transport component that is excellent in a barrier property for hydrogen gas, also can improve flexibility and durability under a low temperature environment. The hydrogen transport component of the present disclosure includes: a hydrogen gas barrier layer formed from a resin composition containing polyamide 11 and a modified olefin-based elastomer; a reinforcement layer; and an outer covering layer, wherein a content of the modified olefin-based elastomer in the resin composition is 15% to 50% by mass with respect to the total amount of the polyamide 11 and the modified olefin-based elastomer; and the resin composition is substantially free of a plasticizer.

Abstract: An object of the present invention is to provide: a rubber laminated body including a coating film which not only ensures decorativeness and visibility as desired but also exhibits good adhesion between a vulcanized rubber member and itself; and a tire using the rubber laminated body. In order to achieve the object, the present invention provides a rubber laminated body, comprising: a vulcanized rubber member; and a coating film provided to be attached to the vulcanized rubber member, wherein the coating film contains a polythiol compound.

Abstract: This invention relates to a photo-curing or electron beam-curing adherent resin composition being excellent in the adhesiveness to various adherends such as metal oxide, metal, resin and so on, and more particularly to an adherent resin composition of a photo-curing or electron beam-curing type comprising a difunctional urethane (metha)acrylate oligomer (A) and a monomer component (B), characterized in that the urethane (metha)acrylate oligomer includes a urethane prepolymer portion composed of a polyol and a polyisocyanate wherein repetitive number of urethane prepolymer portion (n) is 10-30, and the monomer component (B) is a cyclic monomer having a (metha)acryloyl group.

Abstract: In the formation of a conductive roller 1, a compound forming an elastomer by curing through an electron beam irradiation or a ultraviolet ray irradiation is applied onto an outside of a shaft member 2 to form an elastomeric coating layer 3R and then the elastomeric coating layer is cured through an irradiation of an electron beam or a ultraviolet ray to form an elastic layer, whereby the elastic layer can be formed cheaply without sacrificing precision of peripheral dimension to largely reduce the cost of the conductive roller.

Abstract: A conductive roller such as a developing roller, a charging roller or the like provided with a resin coating layer on a surface of an elastic layer, and more particularly to a conductive roller having the resin coating layer using an ultraviolet-curing type resin or an electron beam curing type resin and being obtained by contriving a structure of the resin coating layer, rendering the resin coating layer to contain microparticles, controlling the particle size of the microparticles, or forming the resin coating layer after the outer peripheral surface of the elastic layer is subjected to surface treatment.

Abstract: This invention relates to a photo-curing or electron beam-curing adherent resin composition being excellent in the adhesiveness to various adherends such as metal oxide, metal, resin and so on, and more particularly to an adherent resin composition of a photo-curing or electron beam-curing type comprising a difunctional urethane (metha)acrylate oligomer (A) and a monomer component (B), characterized in that the urethane (metha)acrylate oligomer includes a urethane prepolymer portion composed of a polyol and a polyisocyanate wherein repetitive number of urethane prepolymer portion (n) is 10-30, and the monomer component (B) is a cyclic monomer having a (metha)acryloyl group.

Abstract: This invention relates to a conductive roller having high adhesion property between an elastic layer and a coating layer, and more particularly to a conductive roller 1 comprising a shaft member 2, one or more elastic layers 3 disposed on an outside of the shaft member 2 in a radial direction and one or more coating layers 4 disposed on an outside of the elastic layer 3 in a radial direction, characterized in that at least an outermost layer of the elastic layers 3 and an innermost layer of the coating layers 4 are composed of an ultraviolet-curing type resin formed by curing an ultraviolet curable raw material mixture through ultraviolet irradiation, and (1) the raw material mixture used in the innermost layer of the coating layers 4 comprises a monomer having a heterocycle, or (2) the raw material mixture used in the innermost layer of the coating layers 4 and the raw material mixture used in the outermost layer of the elastic layers 3 comprise at least one polar group-containing monomer selected from the g

Abstract: This invention relates to a conductive roller such as a developing roller, a charging roller or the like provided with a resin coating calyer on a surface of an elastic layer, and more particularly to a conductive roller having the resin coating layer using an ultraviolet-curing type resin or an electron beam curing type resin and being obtained by contriving a structure of the resin coating layer, rendering the resin coating layer to contain microparticles, controlling the particle size of the microparticles, or forming the resin coating layer after the outer peripheral surface of the elastic layer is subjected to surface treatment.

Abstract: In the formation of a conductive roller 1, a compound forming an elastomer by curing through an electron beam irradiation or a ultraviolet ray irradiation is applied onto an outside of a shaft member 2 to form an elastomeric coating layer 3R and then the elastomeric coating layer is cured through an irradiation of an electron beam or a ultraviolet ray to form an elastic layer, whereby the elastic layer can be formed cheaply without sacrificing precision of peripheral dimension to largely reduce the cost of the conductive roller.

Abstract: This invention provides a conductive elastic roller (1) comprising a shaft member (2), one or more elastic layers (3) disposed on an outside of the shaft member (2) in a radial direction and optionally one or more coating layers (4) disposed on an outside of the elastic layer (3) in a radial direction, characterized in that at least one of the elastic layers (3) is composed of an ultraviolet-curing type resin formed by curing the specified raw material for the elastic layer through ultraviolet irradiation.