Patent ID: 6951912
Filing Date: 2005-10-04
Classification: B01J,C08G,C08K,C08L,Y10S

Abstract:
1. In a composition which is crosslinkable with elimination of alcohols from alkoxysilyl end groups to give elastomers in the presence of a catalyst, the improvement comprising selecting as at least one catalyst, a tin compound having a coordination number of 5 or 6 and coordinately bonded to a P═O group of a phosphorus compound, the tin compound prepared by reaction of a phosphorus compound having a P═O group, of the formulae (I), (III): where n is 3, where m is 0, n is 0, 1, or 2, where m is 1, 2, or 3, m+n is 1, 2, or 3, R where R b and d are 2 or 3, c is an integer from 1 to 15, L each independently is a radical selected from the group consisting of —O—, —COO—, —OOC—, —CONR R M is a monovalent C where R R R o is 0, 1, or 2, p is 1, 2, or 3, and o+p is 1, 2, or 3,  R 10 2 SnY  (V), where R X is halo, —OH, —OR Y is O or S, and r is the values 1, 2, or 3.