Claims
- 1. A composition comprising from 30 to 95% by volume of aerogel particles and at least one aqueous binder, wherein the particle diameter of the aerogel particles is less than 0.5 mm, and wherein the aerogel particles have permanent hydrophobic surface groups on the internal surface.
- 2. A composition as claimed in claim 1, wherein the particle diameter of the aerogel particles is less than 0.2 mm.
- 3. A composition as claimed in claim 1, wherein the aerogel is an SiO.sub.2 aerogel.
- 4. A composition as claimed in claim 1, wherein the hydrophobic surface groups are trialkylsilyl groups and/or triarylsilyl groups.
- 5. A composition as claimed in claim 1, wherein the aerogel particles have porosities of greater than 60% and densities of less than 0.6 g/cm.sup.3.
- 6. A composition as claimed in claim 1, wherein the aqueous binder is a dispersion which comprises at least one organic polymer and/or inorganic binder and has a water content of less than 90% (v/v).
- 7. A composition as claimed in claim 1, wherein the composition includes from 0.1 to 30% by volume of fibers.
- 8. A composition as claimed in claim 1, wherein the composition includes an IR opacifier.
- 9. A process for preparing a composition as claimed in claim 1, wherein the aerogel particles are mixed with the aqueous binder.
- 10. An auxiliary material useful in electrical engineering comprising the composition of claim 1.
- 11. An insulating material comprising the composition of claim 1.
- 12. An adhesive comprising the composition of claim 1.
- 13. A film comprising the composition of claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
44 37 424 |
Oct 1994 |
DEX |
|
Parent Case Info
This application is a .sctn.371 of PCT/EP95/03989, filed Oct. 10, 1995, based on Fed. Rep. Germany Application No. P 4437 424.0, filed Oct. 20, 1994.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/EP95/03989 |
10/10/1995 |
|
|
4/17/1997 |
4/17/1997 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO96/12683 |
5/2/1996 |
|
|
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