GASKET AND METHOD FOR PRODUCING SAME

• Main Authors: URAKAWA Tetsuya, OBA Kenichi, NISHIMURA Takuro, SASO Hidetoshi, HORIMOTO Takayuki, YUI Hajime, KURANO Yoshihiro
• Format: Patent
• Language: English; French; German
• Published: 11.07.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; BLASTING; CYLINDERS; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PISTONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEALINGS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention improves the handling properties of a rubber-only gasket. To this end, the provided gasket is: obtained by combining a gasket body of the rubber-only type, and a carrier sheet that comprises a resin film and holds the gasket body in an un-adhered state; and characterized in that the carrier sheet is provided with an air intake port for introducing air between the carrier sheet and the gasket body when removing the gasket body from the carrier sheet. Furthermore, the location on the carrier sheet at which the gasket body overlaps when seen from a planar view is provided with a three-dimensionally shaped gasket-holding part that deforms according to the external shape of the gasket body, and retains part of the gasket body in the thickness direction thereof. The gasket body is to be used as a gasket for a fuel cell to be incorporated into a fuel cell stack.