公开(公告)号：EP1700830A1

公开(公告)日：2006-09-13

申请号：EP05005095.4

申请日：2005-03-09

Applicant: Novara Technology S.R.L.

Inventor： Boara, Guilio ,  Costa, Fulvio ,  Rückemann, Andreas

IPC: C03B19/12 ,  C03B37/016 ,  C03C1/00 ,  C03C3/06 ,  B01J13/00 ,  C01B33/158

CPC classification number: C03B19/12 ,  B01J13/0091 ,  C03B2201/03 ,  C03C1/006 ,  C03C2203/20 ,  C03C2203/26 ,  C03C2203/30 ,  C03C2203/34

Abstract: Process for the production of monoliths of glass by means of the sol-gel process, comprising the following steps:

a) dispersion in water of an oxide prepared by the pyrogenic route,
b) hydrolysis of an alkoxide in aqueous solution to form a hydrolysate,
c) mixing of the hydrolysate of the alkoxide with the oxide prepared by the pyrogenic route to form a colloidal sol,
d) optional removal of coarse contents from the colloidal sol,
e) gelling of the colloidal sol in a mould,
f) replacement of the water contained in the resulting aerogel by an organic solvent,
g) drying of the aerogel,
h) heat treatment of the dried aerogel.

Abstract translation: 通过溶胶 - 凝胶法生产玻璃整体的方法，包括以下步骤：a）通过热解法制备的氧化物在水中的分散，b）在水溶液中水解醇盐以形成水解产物， c）将醇盐的水解产物与通过热解途径制备的氧化物混合以形成胶体溶胶，d）任选地从胶体溶胶中除去粗含量，e）胶体溶胶在模具中的凝胶化，f） 通过有机溶剂包含在所得气凝胶中的水，g）干燥气凝胶，h）干燥气凝胶的热处理。

公开(公告)号：EP1283195A1

公开(公告)日：2003-02-12

申请号：EP01118511.3

申请日：2001-08-01

Applicant: Novara Technology S.R.L.

Inventor： Costa, Lorenzo ,  Costa, Fulvio ,  Crepaldi, Matteo

IPC: C03B19/12 ,  C03B37/016

CPC classification number: C03C3/04 ,  C03B19/12 ,  C03B37/016 ,  C03C13/00

Abstract: Sol-gel process for the production of optical fiber preforms or overcladdings by preparing a sol, gelling the sol, drying the wet gel to a dry porous gel by supercritical drying and densifying the dry gel to fully dense glass, wherein during the calcination treatment from 350°C to 900°C under pure oxygen or a mixture of oxygen and an inert gas or gases to remove organic impurities in the dry gel, at least one reduced-pressure phase at a pressure comprised between about 0.01 and 0.5 bar is carried out.

Abstract translation: 用于通过制备溶胶，凝胶化溶胶，通过超临界干燥将湿凝胶干燥成干多孔凝胶并将干凝胶致密化成完全致密玻璃的溶胶 - 凝胶法，其中在煅烧处理期间 在纯氧气或氧气和惰性气体或气体的混合物中在350℃至900℃下除去干凝胶中的有机杂质，在约0.01至0.5巴之间的压力下进行至少一个减压相 。

公开(公告)号：EP1283195B1

公开(公告)日：2005-10-26

申请号：EP01118511.3

申请日：2001-08-01

Applicant: Novara Technology S.R.L.

Inventor： Costa, Lorenzo ,  Costa, Fulvio ,  Crepaldi, Matteo

IPC: C03B19/12 ,  C03B37/016

CPC classification number: C03C3/04 ,  C03B19/12 ,  C03B37/016 ,  C03C13/00

公开(公告)号：EP1700831A1

公开(公告)日：2006-09-13

申请号：EP05005096.2

申请日：2005-03-09

Applicant: Novara Technology S.R.L.

Inventor： Boara, Giulio ,  Costa, Fulvio ,  Rückemann, Andreas, Dr.

IPC: C03B19/12 ,  C03B20/00 ,  C03C1/00 ,  C03C3/06

CPC classification number: C03B19/12 ,  C03B2201/03 ,  C03C1/006 ,  C03C3/06 ,  C03C2201/02 ,  C03C2203/22 ,  C03C2203/26 ,  C03C2203/52

Abstract: Process for the production of monoliths by means of the sol-gel process, comprising the following steps:

a. hydrolysis of an alkoxide in aqueous solution to form a hydrolysate and optionally evaporation to optimum concentration of the same,
b. addition of an oxide prepared by the pyrogenic route,
c. mixing of the hydrolysate of the alkoxide with the oxide prepared by the pyrogenic route to form a colloidal sol,
d. optional removal of coarse contents from the colloidal sol,
e. gelling of the colloidal sol in a mould,
f. optional replacement of the water contained in the resulting aerogel by an organic solvent,
g. drying of the aerogel,
h. heat treatment of the dried aerogel, the coarse content being removed from the colloidal sol.

Abstract translation: 通过溶胶 - 凝胶法生产整料的方法，包括以下步骤：a。 在水溶液中水解醇盐以形成水解产物，并任选地蒸发至最佳浓度，b。 加入通过热解法制备的氧化物，c。 将醇盐的水解产物与通过热解法制备的氧化物混合以形成胶体溶胶，d。 可选地从胶体溶胶中除去粗含量， 胶体胶体在模具中凝胶化，f。 用有机溶剂任选地替代所得气凝胶中所含的水，g。 干燥气凝胶，h。 干燥的气凝胶的热处理，从胶体溶胶中除去粗含量。