Preparation of glass container for thermoplastic closure

Details Preparation of glass container for thermoplastic closure Preparation of glass container for thermoplastic closure

B - Operations, Transporting

05

D

117/70, 49/79, 2

B05D 3/00 (2006.01) B05D 3/08 (2006.01) B05D 7/00 (2006.01) B65D 51/18 (2006.01) B67B 5/00 (2006.01) C03C 23/00 (2006.01) B29C 65/00 (2006.01) B29C 65/02 (2006.01)

Patent

CA 1192097

Abstract of the Disclosure A method for sealing a rim-like opening in a glass container is described. The surface of the opening is treated with tin and/or titanium oxide precursors and with or without one or more of the groups consisting of fluorides, sulfur oxides and sulfur oxide precursors and then overcoated with a chromium III organic metallic complex. A membrane comprising a thermoplastic film is pressed onto the coated opening surface and heated to cause glass-plastic adhesion, forming a closure. The coating steps may be applied to glass containers immediately after forming and annealing as appropriate, or may be applied to glass containers taken from storage.

419449

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