Bottles and jars – Closures – Cap type
Patent
1992-05-07
1995-01-17
Shoap, Allan N.
Bottles and jars
Closures
Cap type
215348, 426118, B65D 5304
Patent
active
053819144
ABSTRACT:
A container closure comprising a container closure shell and a resin liner applied to the inner surface side of the shell, wherein the resin liner is constituted by an upper layer portion which is composed of a resin composition containing such additives as disoxidation agent, drying agent, deodorant, antibacterial agent and thermo color agent and which forms a panel portion on the inside of the hermetically sealing portion, a lower layer portion which is composed of a thermoplastic resin having cushioning property and elasticity and which is interposed between the upper layer portion and the top surface of the shell to join them together, and a hermetically sealing portion which is formed on the outer peripheral side of the panel portion integrally with the lower layer portion. There is further provided a container closure with liner of the function separation type which is free from defects inherent in the conventional function addition-type container closures with liner, and which permits additional functions to be exhibited to a high degree without impairing hermetically sealing property, and a method of producing the same. Moreover, there is provided a method of producing the container closure with liner of the function separation type maintaining excellent produceability and high quality.
REFERENCES:
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patent: 4536407 (1985-08-01), Farrell et al.
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patent: 4740402 (1988-04-01), Maeda et al.
patent: 4785952 (1988-11-01), Obadia
patent: 4840280 (1989-06-01), Schvester
patent: 5089323 (1992-02-01), Nakae et al.
patent: 5143763 (1992-09-01), Yamada et al.
Kikuchi Hiroaki
Koyama Masayasu
Oda Yasuhiro
Yamada Muneki
McDonald Christopher
Shoap Allan N.
Toyo Seikan Kaisha Ltd.
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