| abstract |
The present invention relates to a kind of compositions, it comprises (A) and has formula Y [(CR 1 2 ) b ‑SiR a (OR 2 ) 3‑a ] x (I) polymer of crosslinked with silicane, wherein group and subscript have the definition specified in claim 1, (B) silicic acid of high degree of dispersion, condition is the average molar mass M that the polymer (A) of crosslinked with silicane has at least 8000g/mol n (number all), and compositions (M) to comprise relative to the gross weight of compositions (M) be 16 weight % to the silicic acid of the high degree of dispersion of the amount of 50 weight %.The invention still further relates to the preparation method of described compositions and as binding agent and the purposes of sealant, especially for the purposes of bonding of base material. |