Abstract: A neck ring holder device intended to be used at a mould for forming glass containers (30), wherein the neck ring (41) for realizing the mouth (32) of the container can be opened and consists of a plurality of circumferential sectors (44) that can be moved apart from a closed position of the neck ring (41), in which the circumferential sectors (44) are coplanar and form a substantially continuous annular element, up to an open position of the neck ring (41), in which the circumferential sectors (44) are rotated out of said coplanar configuration, moving away from each other, about axes directed perpendicular to the direction of the axis (45) of said annular element, is characterised in that the movement of the circumferential sectors (44) from the closed position to the open position.

Abstract: The present invention relates to a process for the manufacture of a glass container that comprises the steps of: a) providing a first glass element; b) providing a second element made of a material selected from: glass, ceramic, metal and metallic alloy; said first element and said second element, joined together, defining a containment cavity of said glass container; c) depositing a sealing composition comprising at least one glass frit dispersed in at least one dispersing liquid on at least one surface of at least one of said first element and said second element; d) positioning said first element and said second element in contact with each other so that said sealing composition is arranged between said first element and said second element; e) heating said sealing composition so as to melt said glass frit and form a sealing layer between said first element and said second element. The present invention further relates to a glass container, such as, for example, a bottle, a cup or a jar, and related uses.

Abstract: The present invention regards a method for internally coating a hollow glass body comprising the steps of: (a) applying on at least one internal surface of said hollow body at least one coating composition in form of liquid dispersion comprising at least one glass frit and at least one polymeric dispersing agent; (b) subjecting said internal surface comprising said coating composition to a thermal treatment, so as to obtain a vitrified coating layer.

Abstract: A neck ring holder device intended to be used at a mould for forming glass containers (30), wherein the neck ring (41) for realizing the mouth (32) of the container can be opened and consists of a plurality of circumferential sectors (44) that can be moved apart from a closed position of the neck ring (41), in which the circumferential sectors (44) are coplanar and form a substantially continuous annular element, up to an open position of the neck ring (41), in which the circumferential sectors (44) are rotated out of said coplanar configuration, moving away from each other, about axes directed perpendicular to the direction of the axis (45) of said annular element, is characterised in that the movement of the circumferential sectors (44) from the closed position to the open position.

Abstract: The present invention relates to a process for the manufacture of a glass container that comprises the steps of: a) providing a first glass element; b) providing a second element made of a material selected from: glass, ceramic, metal and metallic alloy; said first element and said second element, joined together, defining a containment cavity of said glass container; c) depositing a sealing composition comprising at least one glass frit dispersed in at least one dispersing liquid on at least one surface of at least one of said first element and said second element; d) positioning said first element and said second element in contact with each other so that said sealing composition is arranged between said first element and said second element; e) heating said sealing composition so as to melt said glass frit and form a sealing layer between said first element and said second element. The present invention further relates to a glass container, such as, for example, a bottle, a cup or a jar, and related uses.

Abstract: The present invention regards a method for internally coating a hollow glass body comprising the steps of: (a) applying on at least one internal surface of said hollow body at least one coating composition in form of liquid dispersion comprising at least one glass frit and at least one polymeric dispersing agent; (b) subjecting said internal surface comprising said coating composition to a thermal treatment, so as to obtain a vitrified coating layer.

Abstract: An article made from overmolded composite material (1) having a glass body (2), consisting of a container or a closing element of a container, and an overmolded jacket (3) made from thermoplastic resin, characterised in that said glass (2) is a glass of the sodium-calcium or borosilicate type comprising (percentages in weight referring to the weight of the glass): CaO from 1 to 12% by weight, preferably between 8% and 10% in the case of sodium-calcium glass; preferably between 1% and 3% in the case of borosilicate glass; Al2O3 from 1 to 7% by weight, preferably between 1% and 2% in the case of sodium-calcium glass; preferably between 5% and 7% in the case of borosilicate glass; one or more oxides selected from the group consisting of ZnO, TiO2 and ZrO2.

Abstract: This invention relates to a process for applying a shatterproof coating to the surface of a glass item, comprising the following steps: (a) applying, on at least one portion of the surface of a glass item, a polymerisable composition comprising (i) a resin selected from the group consisting of polyurethane resins, polyester resins, acrylic resins, silicone resins and/or their mixes, in water or in an organic solvent; (ii) an adhesion promoter based on an organosilane compound; (iii) possibly a UV photo-initiator; (b) evaporating the water or the organic solvent; (c) polymerising said composition, forming on the glass item a shatterproof coating film capable of containing the dispersion of the glass fragments that may form in the event of the breakage of the item. The process also preferably comprises a step for the application of an additional anti-wear coating film on top of the shatterproof coating.

Abstract: An article made from overmoulded composite material (1) having a glass body (2), consisting of a container or a closing element of a container, and an overmoulded jacket (3) made from thermoplastic resin, characterised in that said glass (2) is a glass of the sodium-calcium or borosilicate type comprising (percentages in weight referring to the weight of the glass): CaO from 1 to 12% by weight, preferably between 8% and 10% in the case of sodium-calcium glass; preferably between 1% and 3% in the case of borosilicate glass; Al2O2 from 1 to 7% by weight, preferably between 1% and 2% in the case of sodium-calcium glass; preferably between 5% and 7% in the case of borosilicate glass; one or more oxides selected from the group consisting of ZnO, TiO2 and ZrO2.