Container made from soda-lime glass with improved chemical resistance for a pharmaceutical or diagnostic substance
AssigneeSgd S.A.
InventorsPierre-Luc Etchepare, Christophe Depoilly, Jingwei Zhang
Life of this patent
Estimating the term…
Loading patent…
AssigneeSgd S.A.
InventorsPierre-Luc Etchepare, Christophe Depoilly, Jingwei Zhang
Estimating the term…
The invention relates to a container (1) comprising a wall (2) made of glass delimiting a cavity (3) to accommodate a substance, particularly for a pharmaceutical or diagnostic substance, the glass wall (2) having an internal face (4) situated facing the accommodating cavity (3), the container (1) being characterized in that the wall (2) is made of soda-lime glass, the internal face (4) forming a bare glass surface intended to come into direct contact with the substance, the glass wall (2) having an atomic fraction of sodium, measured by X-ray-induced photoelectron spectrometry, which is less than or equal to 4 at. % down to a depth of at least 200 nm from the surface of the inner face (4).
A container (1) comprising a glass wall (2) delimiting an accommodation cavity (3) for a substance, said glass wall (2) having an inner face (4) located facing said accommodation cavity (3), said container (1) being characterized in that said wall (2) is made of soda-lime glass, said inner face (4) forming a bare glass surface intended to come into direct contact with said substance, said glass wall (2) having anatomic fraction of sodium, as measured by X-ray induced photoelectron spectrometry, that is lower than 4 at. % up to a depth of at least 200 nm from the surface of the inner face (4).
Dependencies are inferred from the claim text.