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.