Antifouling coating composition comprising a fluorinated resin

Details Antifouling coating composition comprising a fluorinated resin Antifouling coating composition comprising a fluorinated resin

2005-05-31

2005-05-31

Moore, Margaret G. (Department: 1712)

Stock material or miscellaneous articles

Composite

Of silicon containing

C528S026000, C528S029000, C528S035000, C528S038000, C528S042000, C427S387000

Reexamination Certificate

active

06899955

ABSTRACT:
A process for inhibiting the fouling of a substrate in a marine fouling environment, which comprises forming on the substrate, before exposure to the said environment, a coating comprising a curable fluorinated resin of the general formula: W-L-YFC—O—Rf—CFY-L-W wherein: W is a group of the general formula —Si(R1)α(OR2)3-α, wherein α=0, 1, or 2, preferably α=0, R1and R2independently have the meaning of linear of branched C1-C6alkyl groups, optionally containing one or more ether groups, or C7-C12aryl or alkyl groups, and preferably R1and R2are C1-C4 alkyl groups; L is an organic linking group; Y is F or CF3; and Rfis a group having an average molecular weight by number between 350 and 8000, preferably between 500 and 3000, and comprising repeating units having at least one of the following structures randomly distributed along the chain: —CFXO—, CF2CF2O—, CF2CF2CF2O—, CF2CF2CF2CF2O—, CR4R5CF2CF2O—, —(CF(CF3)CF2O)—, —CF2CF(CF3)O—, wherein X is F or CF3, R4and R5independently have the meaning of H, Cl, or C1-C4 perfluoroalkyl.

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