Hybrid sol for the production of abrasion-resistant SiO 2...

Details Hybrid sol for the production of abrasion-resistant SiO 2... Hybrid sol for the production of abrasion-resistant SiO 2...

2007-07-10

2007-07-10

Peng, Kuo-Liang (Department: 1712)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C528S039000, C528S012000

Reexamination Certificate

active

10490310

ABSTRACT:
Hybrid sol comprising [SiOx(OH)y]nparticles, where 0<y<4 and 0<x<2, which consist of a mixture of a first fraction of particles having a particle size of 4–15 nm and a second fraction of particles having a mean particle size of 15–60 nm, water and a solvent; obtainable by hydrolytic polycondensation of tetraalkoxysilanes in an aqueous, solvent-containing medium with addition of a monodisperse silicon oxide hydroxide sol having a mean particle size of 15–60 nm and a maximum standard deviation of 20%, and the preparation and use thereof.

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