Addition-crosslinkable epoxy-functional organopolysiloxane polymer and coating composition
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United States of America Patent
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Mar 30, 2004
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N/A
app pub date -
Feb 5, 2002
filing date -
Jun 24, 1999
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Abstract
The present invention pertains to an epoxy-functional organopolysiloxane resin, and an epoxy-functional organopolysiloxane coating composition comprising the epoxy-functional organopolysiloxane resin. The epoxy-functional organopolysiloxane coating composition comprises the epoxy-functional organopolysiloxane resin of the present invention and a hardener. The epoxy-functional organopolysiloxane coating composition may optionally include pigments, a flow additive and a catalyst. The epoxy-functional organopolysiloxane resin is preferably prepared by reacting a silicone resin with a silane having at least one epoxy group per molecule. The coating composition cures through the crosslinking of the epoxy groups of the resin to provide a coating which is weather and corrosion resistant. The polysiloxane moieties in the resin render the cured coating resistant to U.V. light and heat.
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