PROCESSO PARA PREPARAR A SUPERFICIE DE UMA ABERTURA SEMELHANTE A BORDA,EM UM RECIPIENTE DE VIDRO,PROCESSO PARA SELAR UMA ABERTURA SEMELHANTE A BORDA EM UM RECIPIENTE DE VIDRO E PROCESSO PARA PREPARAR O ACABAMENTO DE UM RECIPIENTE DE VIDRO

摘要

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.