Moisture curable compositions with enhanced elongation and tear strentgh properties

A moisture-curable composition comprising:

• (a) a moisture-curable silylated resin having the general Formula (I):
• P[-L-SiR1a(OR1)3-a]m Formula (I)
• wherein:
• P is a polymer residue derived from at least one addition or condensation monomer, wherein the polymer residue P has a polymer backbone selected from the group consisting of polyether, polyester, polyether-co-polyester, polyester-co-polyether, polythioether, polyamine, polyamide, polyester-co-polyamide, polyacrylate, polyacetal, polycarbonate, polycarbonate, polybutadiene, polyurethane and polyurea;
• L is a divalent linking group;
• each occurrence of R1 is independently an alkyl group having from 1 to 6 carbon atoms, a phenyl group or an arenyl group having 7 to 12 carbon atoms;
• each occurrence of subscript a is independently 0, 1 or 2;
• and
• m is an integer from 1 to 15;
• (b) a flexibilizer having the general Formula (II):
• wherein:
• each occurrence of R4 is independently an alkyl group having from 1 to 6 carbon atoms, a phenyl group or an arenyl group having 7 to 12 carbon atoms:
• each occurrence of R5 is independently an alkyl group having from 1 to 6 carbon atoms;
• each occurrence of R6 is independently a phenyl group or an arenyl group having 7 to 12 carbon atoms;
• each occurrence of X1 is independently a hydroxyl group, an alkoxy group having from 1 to 6 carbon atoms;
• each occurrence of X2 is independently a hydroxyl group, an alkoxy group having from 1 to 6 carbon atoms, or a group with the Formula (IIa):
• R4, R5 and R6 are the same as defined above;
• each occurrence of subscripts e, n, p, q, x and y is independently an integer wherein c is 1 to 3;
• n is 0 to 500, p is 1 to 500, q is 0 to 10, x is 0 to 50, and y is 0 to 50 with the provisos that
• (1) the molar ratio of n to p is from 0 to 15, and
• (2) the molar ratio of q to p is from 0 to 1;
• and,
• (c) at least one curing catalyst.