Aerogel-containing composite materials, process for producing the same and their use

摘要

PCT No. PCT/EP95/03274 Sec. 371 Date Feb. 20, 1997 Sec. 102(e) Date Feb. 20, 1997 PCT Filed Aug. 17, 1995 PCT Pub. No. WO96/06808 PCT Pub. Date Mar. 7, 1996The present invention relates to mat-shaped composites having porosities above 60% and densities below 0.6 g/cm3, comprising an aerogel and fibers dispersed therein, the aerogel having cracks and the aerogel fragments enclosed by the cracks, whose average volume is 0.001 mm3 to 1 cm3, being held together by the fibers. The present invention further relates to processes for producing the composites of the invention and to their use.