Encapsulated catalyst, method of preparation, composition and methods involving hydrosilylation

Abstract

An encapsulated catalyst for hydrosilylation comprises platinum(0) and/or platinum (II). A polymer encapsulates the platinum(0) and/or platinum (II). The polymer comprises structural units, at least some of the structural units of the polymer include a pyridine moiety, and at least some of the platinum(0) and/or platinum (II) is/are bound to at least some of the pyridine moieties of the polymer. When the platinum of the encapsulated catalyst is platinum(0), the encapsulated catalyst comprises at least 500 equivalents of pyridine moieties relative to total platinum. Methods of preparing the encapsulated catalyst, and compositions including the same, are also disclosed.

Dependencies are inferred from the claim text.