Patent ID: 6127306
Filing Date: 2000-10-03
Classification: B01J,C01B,C09K

Abstract:
An aerogel, containing functional groups of formula (I)--Y--Z (I)wherein the functional groups --Y--Z are bound directly to silicon atoms, andY represents a straight-chain or branched alkylene group having 1 to 22 carbon atoms;Z represents halogen, pseudohalogen, SR.sup.1, PR.sup.2 R.sup.3, a dye residue or a metal complex residue;R.sup.1 represents H, a straight-chain or branched alkyl group having 1 to 22 carbon atoms or an aryl group having 4 to 10 carbon atoms; andR.sup.2 and R.sup.3 are the same or different and represent a straight-chain or branched alkyl group having 1 to 22 carbon atoms or an aryl group having 4 to 10 carbon atoms.