Breiner & Breiner
Process for producing thin glass on roll
 This invention relates to a continuous process for producing a web of thin, chemically hardened glass that can be wound on a roll. The process comprises the steps of (i) drawing glass, containing original alkali ions, to form a web of glass having a thickness equal to or lower than 1.2 mm and having a first and second major surface; (ii) directly after or during said drawing, treating both said surfaces of said web with chemical hardening means during less than two hours, replacing said original alkali ions by alkali ions having a larger radius; and (iii) after treating both said surfaces, winding said web on a core. 
AGFA-Gevaert, N.V.
C B G C B B C C B C C B C G C C
C03C B41M G03C C03C B41M B41M C03C C03C B41M C03C C03C B41N C03C G03C C03C C03C
additional additional inventional inventional additional additional additional inventional additional inventional inventional inventional additional inventional inventional additional
Pascale Bartholomeus
Steenhoudt Verlinden