US 11,993,530 B2
Production of glass bodies from polymerisable solutions
Paolo Colombo, Padua (IT); Giorgia Franchin, Padua (IT); Giulio Giometti, Treviso (IT); Johanna Schmidt, Giessen (DE); and Anna De Marzi, Padua (IT)
Assigned to D. Swarovski KG, Wattens (AT)
Appl. No. 17/596,005
Filed by D. Swarovski KG, Wattens (AT)
PCT Filed Jun. 5, 2020, PCT No. PCT/EP2020/065724
§ 371(c)(1), (2) Date Dec. 1, 2021,
PCT Pub. No. WO2020/245427, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 19178557 (EP), filed on Jun. 5, 2019.
Prior Publication US 2022/0324741 A1, Oct. 13, 2022
Int. Cl. C03B 20/00 (2006.01); C03B 19/06 (2006.01); C03C 1/00 (2006.01); C03C 3/06 (2006.01)
CPC C03B 20/00 (2013.01) [C03B 19/06 (2013.01); C03C 1/006 (2013.01); C03C 3/06 (2013.01); C03B 2201/02 (2013.01); C03C 2203/26 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for producing a solid body of glass comprising:
providing a polymerisable composition comprising:
a liquid composition comprising one or more organic polymerisable compound(s); and
a solid source of silica as colloidal silica particles, silica glass microparticles and/or silica glass nanoparticles, dispersed in the liquid composition;
curing the polymerisable composition to obtain a cured body;
subjecting the cured body to thermal debinding to substantially remove the organic components in the cured body; and
subjecting the cured body to sintering to obtain a solid body of glass,
wherein the one or more organic polymerisable compound(s) comprise(s) at least one organosilicon compound as a second source of silica to thereby increase the silica loading of the cured body prior to sintering, wherein the organosilicon compound(s) is/are chosen from silicon-based preceramic polymers/monomers and silicon alkoxides.