Composition

An antifouling coating composition comprises (i) acrylate polymer containing at least 50 wt.% (meth)acrylate monomers, (ii) zinc phosphate, (iii) optionally zinc oxide, and (iv) optionally rosin and/or a rosin derivative. Typically, the acrylate polymer contains at least 90 wt.% (meth)acrylate monom...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Henning Johnsen, Seamus M Jackson
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An antifouling coating composition comprises (i) acrylate polymer containing at least 50 wt.% (meth)acrylate monomers, (ii) zinc phosphate, (iii) optionally zinc oxide, and (iv) optionally rosin and/or a rosin derivative. Typically, the acrylate polymer contains at least 90 wt.% (meth)acrylate monomers and does not comprise silicon-containing monomers. The acrylate polymer may have the formula H2C=C(R1)C(=O)OR2, wherein R1 is hydrogen or methyl, and R2 is a metal cation such as Cu2+ or Zn2+, hydrogen, optionally-substituted C1-18 alkyl, a heterocycle, or (CH2CH2O)nR4, wherein R4 is C1-4 alkyl and n is 1-20. The composition preferably comprises 3-40 wt.% zinc phosphate and 1-25 wt.% zinc oxide, wherein the ratio of zinc phosphate to zinc oxide may be 0.8:1 to 1:8. The composition typically comprises a marine antifouling agent, a solvent, and a silyl ester copolymer. A paint comprising the composition is also disclosed.