A joining method for joining together a first member in which fiber material is mixed into a first resin, and a second member that includes at least a second resin, includes abutting the first member and the second member together, and softening or melting the first resin of the first member and the second resin of the second member that are adjacent to abutting surfaces of the first member and the second member; and stirring a joint forming portion formed by the softened or melted first resin of the first member and the softened or melted second resin of the second member, and the fiber material included in the softened or melted first resin of the first member, in a direction inclined with respect to the abutting surfaces, and hardening the joint forming portion.

A method of repairing a thermoplastic panel having a damaged portion therein that includes the steps of obtaining a patch member made of a thermoplastic material, positioning the patch member over the damaged portion, positioning the panel and patch member on a heat sink tool, using a hot forming tool to soften the panel and the patch member such that the material of the panel and the material of the patch member are welded together, and cooling the panel and patch member to integrally bond the patch member to the panel, thereby forming a panel and patch assembly.

A method of repairing a thermoplastic panel having a damaged portion therein that includes the steps of obtaining a patch member made of a thermoplastic material, positioning the patch member over the damaged portion, positioning the panel and patch member on a heat sink tool, using a hot forming tool to soften the panel and the patch member such that the material of the panel and the material of the patch member are welded together, and cooling the panel and patch member to integrally bond the patch member to the panel, thereby forming a panel and patch assembly.

A method for manufacturing a liquid supply member that supplies a discharge port with liquid includes preparing a transparent member and an absorption member, at least one of both members having a groove for a supply path; bringing both members into contact; and forming the supply path by emitting laser beams simultaneously from a plurality of laser beam sources, toward a contact portion, which is provided in a vicinity of the groove and at which both members are in contact, to weld both members. Laser beams are emitted during the forming such that a total laser-beam irradiation amount per unit area for a first portion included in the contact portion and located in a vicinity of an end in a longitudinal direction of the groove is larger than that for part with a smallest irradiation amount of a second portion other than the first portion of the contact portion.

A method for manufacturing a liquid supply member that supplies a discharge port with liquid includes preparing a transparent member and an absorption member, at least one of both members having a groove for a supply path; bringing both members into contact; and forming the supply path by emitting laser beams simultaneously from a plurality of laser beam sources, toward a contact portion, which is provided in a vicinity of the groove and at which both members are in contact, to weld both members. Laser beams are emitted during the forming such that a total laser-beam irradiation amount per unit area for a first portion included in the contact portion and located in a vicinity of an end in a longitudinal direction of the groove is larger than that for part with a smallest irradiation amount of a second portion other than the first portion of the contact portion.

This invention is a highly insulating film, which is characterized by including a biaxially stretched film containing a styrene polymer having a syndiotactic structure as a main component, containing a thermoplastic amorphous resin Y having a glass transition temperature Tg by DSC of 130 C. or higher in an amount of 5% by mass or more and 48% by mass or less, and having a plane orientation coefficient (AP) represented by the following equation (1) of 0.027 or less: P=(Nx+Ny)/2Nz (1). In equation (1), Nx represents the minimum value of the refractive index in the plane direction of the film, Ny represents the refractive index in the direction perpendicular to Nx in the plane direction of the film, and Nz represents the refractive index in the thickness direction of the film.

Sealed connection between an elastomeric or synthetic polymer flexible pipe or hose and a metallic coupling member. The coupling member surrounds an armor layer at a free end of the flexible pipe or hose. A sealing area is defined by a recessed portion of the pipe coupling into which a sealing material is introduced. An inner liner layer thereof may extend into the sealing area where it is bonded to the sealing material. The sealing material and the inner liner layer may each include a semi-crystalline thermoplastic material. A reinforcement material may be provided in the inner liner layer. In one embodiment the sealing material is injected into the sealing area. In another embodiment the sealing material is provided in the form of meltable ring which fits into the sealing area before fitting of the coupling member, and is activated by an induction heater to effect the sealed connection.

Sealed connection between an elastomeric or synthetic polymer flexible pipe or hose and a metallic coupling member. The coupling member surrounds an armor layer at a free end of the flexible pipe or hose. A sealing area is defined by a recessed portion of the pipe coupling into which a sealing material is introduced. An inner liner layer thereof may extend into the sealing area where it is bonded to the sealing material. The sealing material and the inner liner layer may each include a semi-crystalline thermoplastic material. A reinforcement material may be provided in the inner liner layer. In one embodiment the sealing material is injected into the sealing area. In another embodiment the sealing material is provided in the form of meltable ring which fits into the sealing area before fitting of the coupling member, and is activated by an induction heater to effect the sealed connection.

A molded body has a concavo-convex shape with intaglio portions and raised portions and has uniform physical properties in the intaglio portions and the raised portions. A method for manufacturing the plate-like molded body includes a molding step of placing a raw fabric including a resin component and a filler component on intaglios of a mold, and the intaglios correspond to the concavo-convex shape. The method also includes applying pressure at a top of the raw fabric while suctioning the raw fabric at a bottom of the mold.

A fiber-reinforced plastic joined body is provided, in which a fiber-reinforced molded article (X) containing carbon fibers and a thermoplastic resin and having a joining surface (x), and a thermoplastic resin member (Y) having a joining surface (y) are welded via the joining surfaces (x) and (y) by applying ultrasonic to the molded article (X), and in which: (1) a maximum value of tan by viscoelastic measurement of the molded article (X) is less than 70% of a maximum value of tan by viscoelastic measurement of the thermoplastic resin contained in the molded article (X) within a range of a glass transition temperature 100 C. of the thermoplastic resin contained in the molded article (X), (2) at least one of the joining surfaces (x) and (y) has an energy director, and (3) an application surface of the molded article (X) to which ultrasonic sound is applied is smooth.