Patent ID: 6911518
Filing Date: 2005-06-28
Classification: C07F,C08G

Abstract:
1. A method of making and curing a POS- or POSS-based composition, comprising the steps of: (a) contacting a base compostion selected from the group consisting of POSS and POS with effective amounts of a strained ring olefin in a solution in the presence of effective amounts of a catalyst which promotes addition of the ring-strained olefin to the base composition through an olefinic carbon-carbon double bond of the strained ring olefin, thereby creating a POS- or POSS-based composition with ring-strained olefinic functionality; and (b) curing the POS- or POSS-based composition with ring-strained olefinic functionality by reacting it with effective amounts of a mixture of (a) at least one metal-based catalyst selected from the group consisting of carbenes, halides, phosphates, acetates, and salts of molybdenum, tungsten, and ruthenium and (b) at least one cocatalyst selected from the group consisting of organoaluminum halides and aluminum halides.