Title:
【発明の名称】顔料を含むシリカエ―ロゲルをベースとする断熱材
Document Type and Number:
Japanese Patent JP3021535
Kind Code:
B2
Abstract:
The material is obtainable by
a) reacting an aqueous dispersion of waterglass and a pigment with a strong acid and/or waterglass with a pigment-containing strong acid to give a pigment-containing silica hydrogel, the pigment being characterised in that it scatters, absorbs or reflects infrared radiation of wavelength 3 - 10 mu m,
b) substantially freeing the pigment-containing silica hydrogel thus obtained from ionic constituents by washing out with water,
c) displacing the water present in the hydrogel by means of a low- boiling liquid which is inert to the pigment-containing silica gel,
d) heating the liquid-containing silica gel thus obtained with complete covering with the liquid to supercritical conditions and
e) subsequently removing the liquid from the solid by flash evaporation at supercritical temperature.
Inventors:
Bernard Wolff
Manfred Mirke
Guiluter Zaybolt
Werner Osterturk
Yotsuhen Fritsuke
Lorant Capsu
Manfred Mirke
Guiluter Zaybolt
Werner Osterturk
Yotsuhen Fritsuke
Lorant Capsu
Application Number:
JP11190490A
Publication Date:
March 15, 2000
Filing Date:
May 01, 1990
Export Citation:
Assignee:
BSF Actien Gezershaft
International Classes:
C01B33/155; C01B33/158; C04B14/06; C04B30/00; F16L59/00; F16L59/02; F16L59/08; (IPC1-7): F16L59/02
Domestic Patent References:
| JP6467302A | ||||
| JP6021811A |
Attorney, Agent or Firm:
Toshio Yano (2 outside)