Foul preventing coating composition
AssigneeAkzo Nobel Coatings International B.V.
InventorsDavid Neil WILLIAMS, David Anthony STARK, Lyndsey TYSON
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Abstract
The invention relates to a coating composition for use as a coating to prevent fouling in a marine environment, comprising: a) a curable polysiloxane polyoxyalkylene block copolymer; b) a catalyst of general formula wherein each R1 is independently a monovalent hydrocarbon group, each R2 is independently selected from a hydrogen atom, a monovalent organic group, a siloxane group, or a silyl group of formula —SiR33, wherein each R3 is independently a monovalent hydrocarbon group, and n is an integer having a value of 0 or greater, and optionally: c) a filler and/or pigment.
Claims10
A coating composition for use as a coating to prevent fouling in a marine environment, comprising:
- a) a curable polysiloxane polyoxyalkylene block copolymer;
- and
- b) a catalyst of general formula
- wherein
- each R1 is independently a monovalent hydrocarbon group
- each R2 is independently selected from a hydrogen atom, a monovalent organic group, a siloxane group, or a silyl group of formula —SiR33, wherein each R3 is independently a monovalent hydrocarbon group, and
- n is an integer having a value of 0 or greater.
A process to physically deter fouling from a substrate in an aquatic fouling environment, the process comprising applying to the substrate, before exposure to the aquatic fouling environment, a coating composition comprising
- a) a curable polysiloxane polyoxyalkylene block copolymer;
- and
- b) a catalyst of general formula
- wherein
- each R1 is independently a monovalent hydrocarbon group
- each R2 is independently selected from a hydrogen atom, a monovalent organic group, a siloxane group, or a silyl group of formula —SiR33, wherein each R3 is independently a monovalent hydrocarbon group, and
- n is an integer having a value of 0 or greater.
Dependencies are inferred from the claim text.