
US Patent No: 4,757,914
Number of patents in Portfolio can not be more than 2000
Laminated closure for a plastic container
Stats
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Jul 19, 1988
Issued date -
Jan 27, 1987
filing date -
07/007,185
serial no -
Expired
status
Importance
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Abstract
This relates to a closure for a plastic container wherein the closure is to be heat bonded to the container. The closure is of a laminated construction and includes an outer structural layer of plastic material, a combined electric heat inductive and barrier layer, and an inner bond forming plastic material layer. The bond forming inner layer is thin as compared to the thickness of the structural outer layer. The barrier layer is formed of a metal foil, preferably aluminum, and is also quite thin.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,533,063 Container lid having an opening device | 26 | 1983 | |
| 4,513,876 Container lid with an opener device | 23 | 1984 | |
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| 4,545,842 Method for adhesive bonding of aluminum | 5 | 1984 | |
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| 4,253,901 Method of heat sealing employing a hot tack adhesive | 6 | 1977 | |
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| 4,244,369 Surgical sponge with visually detectable element | 19 | 1979 | |