Patent ID: 7022800

Claim:
A moisture curable composition capable of cure to an elastomeric body, the composition comprising: A) a polymeric material having at least two groups, said groups in the polymeric material being the same and selected from the group consisting of a) hydroxyl groups, and b) hydrolysable groups; B) an alkoxysilane curing agent, and C) a catalyst comprising a material selected from the group consisting of: (I) a mixture of (i) and (iii), (II) a mixture of (ii) and (iii), (III) a reaction product of (i) and (iii), (IV) a reaction product of (ii) and (iii), (V) a mixture of (I) and (III), and (VI) a mixture of (II) and (IV), wherein (i) is M(OR)4, (ii) is M(OR′),(Z), wherein M is a metal having a valency of 4 selected from Group IVB of the Periodic Table, each R and R′ is the same or different and is selected from the group consisting of (i′) primary aliphatic hydrocarbon groups, (ii′) secondary aliphatic hydrocarbon groups, (iii′) tertiary aliphatic hydrocarbon groups, and (iv′) —SiR 9 , wherein each R 9 is an alkyl group having from 1 to 6 carbon atoms and Z is a group of the formula —O—Y—O— wherein Y is selected from the group consisting of: (i″) an alkylene group comprising from 1 to 8 carbon atoms and, (ii″) a branched alkylene radical comprising from 1 to 8 carbon atoms and x is 0 or 2, wherein when x is 0, z is 2 and when x is 2, z is 1; and, (iii) a compound having the general formula: wherein R 1 is selected from the group consisting of: a′) a methylene radical and b′) substituted methylene radicals having from 1 to 6 carbon atoms, wherein A′ is selected from the group consisting of: (!) —(CX 2 ) n C(R) wherein n is from 0 to 5, (!!) an adamantyl group and (!!!) an adamantyl derivative; B′ is selected from the group consisting of: a″) —(CX 2 (R 2 ) 3 , wherein t has a value of from 0 to 5, b″) a monovalent alkyl group having from 1 to 6 carbon atoms, and c″) OR 3 , wherein R 3 is selected from the group consisting of: a′″) —(CX 2 ) t C(R 2 ) 3 and b′″) a monovalent alkyl group having from 1 to 6 carbon atoms, wherein each X is the same or different and is selected from the group consisting of: a′) a halogen radical and ″) hydrogen, and each R 2 is the same or different and is selected from the group consisting of: b′) a halogen radical and b″) an alkyl radical having one to eight carbon atoms, wherein when n is greater than 0, at least one of the X or R 2 is a halogen radical.