METHODS OF FORMING DELAMINATION RESISTANT GLASS CONTAINERS Russian patent published in 2018 - IPC C03C15/02 B65D1/42 

FIELD: technological processes.

SUBSTANCE: invention relates to a method of producing delamination resistant glass containers. Method comprises forming a glass container comprising a sidewall, at least a portion of an interior surface of the sidewall having an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall. Method then comprises removing the interior surface layer from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall. Interior region has a persistent layer homogeneity relative to the midpoint of the sidewall. Extremum in layer concentration of each constituent component in the interior region is greater than or equal to 92 % and less than or equal to 108 % of the bulk concentration of the same constituent component at a midpoint of the sidewall when the interior surface layer is removed. Concentration extremum in the interior surface layer of each component is less than 80 % or more than 120 % of the bulk concentration of the same component at the midpoint of the sidewall when the container is in an as-formed condition.

EFFECT: higher delamination resistance of glass containers.

24 cl, 7 dwg, 2 tbl