| abstract |
Two component silicone formulations comprising a high molecular weight silicone component and a low molecular weight silicone polymer. The components are mixed in varying proportions with a crosslinking agent to produce compositions of varying viscosities and dispersibilities. The high molecular weight component is a linear polysiloxane compound having a molecular weight of at least 300,000, and preferably 500,000 or more. The low molecular weight constituent has a similar structure, with a molecular weight of not more than 70,000. Various substitutions are made to facilitate crosslinking between the constituents. The formulations are well suited for coating applications, and can be usefully used as coatings for planographic plates. |