| abstract |
The invention relates to tin catalyst (Z) containing crosslinkable masses with elimination of alcohols from alkoxysilyl end groups to give elastomers, which contain as a catalyst tin compound (Z) with a coordination number of 5 or 6, in which the phosphorus compound containing tin atom with P = O group coordinates over it P = O group is bound, DOLLAR A, the tin compound (Z) being obtainable by reacting a phosphorus compound having a P = O group, which is selected from compounds of the general formula (I) DOLLAR AO = PR · 1 · ¶m¶ ( OR · 2 ·) ¶n¶ (OH) ¶3-mn¶ DOLLAR A or compounds of the general formula (III) DOLLAR AO = PR · 7 · ¶o¶ (NR · 8 · ¶2¶) ¶p¶ (OR · 9 ·) ¶3-op¶ DOLLAR A with organic tin compound, which is selected from the compound of general formula (IV) to (VII) DOLLAR AR · 10 · ¶4-r¶SnX¶r¶ (IV), DOLLAR AR · 10 · ¶2¶SnY (V), DOLLAR AR · 10 · ¶3¶SnY¶1 / 2¶ (VI), DOLLAR AR · 10 · SnY¶3 / 2¶ (VII), DOLLAR A in which R · 1 ·, R · 2 ·, R · 7 ·, R · 8 ·, R · 9 ·, R · 10 ·, X, Y, m, n, o, p and r have the meanings given in Claim 1. |