RUBBER PLUG FOR VIAL

PROBLEM TO BE SOLVED: To provide a rubber plug for a vial in which a plate-shape discoid cap portion and a leg portion are solidly bonded to each other by a two-step molding method.SOLUTION: The rubber plug 1 for vial has a bonding surface between a leg portion 1B and a discoid cap portion 1A, the b...

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Bibliographische Detailangaben
1. Verfasser:	KAWACHI YASUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR BABY COMFORTERS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES CONVEYING DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY DEVICES FOR RECEIVING SPITTLE DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a rubber plug for a vial in which a plate-shape discoid cap portion and a leg portion are solidly bonded to each other by a two-step molding method.SOLUTION: The rubber plug 1 for vial has a bonding surface between a leg portion 1B and a discoid cap portion 1A, the bonding surface is formed as a concentric concavo-convex surface having a boss portion 1F, a ring-like groove 1G having a larger diameter, and a ring-like groove 1H having a smaller diameter. Since the base end side of the leg portion 1B including the bonding surface is formed of a butyl rubber of the same material as the discoid cap portion 1A, the discoid cap portion 1A is solidly bonded to the base end side of the leg portion 1B when the discoid cap portion 1A is press molded integrally with the base end side portion of the leg portion 1B by a two-step molding method Therefore, the rubber plug 1 for a vial is suitable to be a rubber plug for a vial which stores liquid medicinal chemicals by freezing preservation.