Patent ID: 7297745
Filing Date: 2007-11-20
Classification: C08K,C09D,Y10T

Abstract:
1. A method of rendering a base material or a shaped item antifouling with an antifouling paint made from a curable composition comprising: (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof, and (B) a hydrophobic silica thermally treated together with the organopolysiloxane (A), the method comprising: heating the hydrophobic silica with at least part of the organopolysiloxane (A) to produce the thermally treated hydrophobic silica (B), combining additional organopolysiloxane (A) with the thermally treated hydrophobic silica (B) to form the curable composition, preparing an antifouling paint from the curable composition, coating or impregnating a surface of a base material or a shaped item with the antifouling paint, and subsequently curing the coating composition to thereby form an antifouling coating film, wherein the base material or the shaped item are underwater structures, sea water utilizing apparatus, ships, ship shell plates, fishing materials and fishing gear.