Bottles and jars – Closures – Self-sealing – piercable-type closure
Patent
1985-09-05
1987-05-12
Norton, Donald F.
Bottles and jars
Closures
Self-sealing, piercable-type closure
B65D 3900
Patent
active
046642757
ABSTRACT:
A stopper for hermetically sealing an opening of a medical container. The stopper is made of a composition comprising 30 to 80% by weight of a partially cross-linked butyl rubber, 10 to 40% by weight of a thermoplastic resin, and 5 to 50% by weight of an inorganic powder.
REFERENCES:
patent: 3136440 (1964-06-01), Krug et al.
patent: 4444330 (1984-04-01), Kasai et al.
Ishikawa Kenji
Kasai Masaaki
Norton Donald F.
Terumo Kabushiki Kaisha
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