Container caps

B - Operations – Transporting – 65 – D

Patent

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B65D 41/02 (2006.01) B29C 45/14 (2006.01) B29C 43/18 (2006.01)

Patent

CA 1319129

Abstract Container Caps Caps consisting of a closure panel 1 and a cylindrical side wall 4 that are relatively permeable to water vapour and/or oxygen are rendered less permeable by moulding into and permanently bonding to the inner face 3 or, more usually, the outer face 2 of the closure panel a relatively vapour impermeable lamina 5. The cap is made by a process in which a lamina is inserted into the cavity of a mould, usually an injection mould, and then the material for forming the cap is introduced into and mould in the cavity.

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