Marine antifouling agent
AssigneeRohm and Haas Company
InventorsGary Lewis Willingham, Linda Marguerite Oltman
Life of this patent
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Abstract
Disclosed is a method of inhibiting the growth of marine organisms on a marine structure, by applying diphenyldiones. These compounds may be directly incorporated into the marine structure during manufacture, directly applied to the structure, or applied to the structure by means of a coating.
Claims9
A method of inhibiting the growth of marine organisms on a marine structure, article, or composition in contact with or intended for contact with sea or brackish water comprising applying to, on, or in such marine structure a marine organism inhibiting amount of a diphenyldione marine antifouling agent of formula:
- ##STR2## wherein R and R.sup.1 are independently selected from H, (C.sub.1 -C.sub.20)alkyl and halo(C.sub.1 -C.sub.20)alkyl.
A method of inhibiting the growth of marine organisms on a marine structure, article, or composition in contact with or intended for contact with sea or brackish water comprising applying to, on, or in such marine structure a marine organism inhibiting amount of a combination of a diphenyldione marine antifouling agent of formula:
- ##STR3## wherein R and R.sup.1 are independently selected from H(C.sub.1 -C.sub.20)alkyl and halo(C.sub.1 -C.sub.20)alkyl and a second marine antifouling agent selected from the group consisting of;
- tin based marine antifoulants;
- manganese ethylenebisdithiocarbamate;
- cuprous oxide;
- zinc dimethyl dithiocarbamate;
- 2-methylthio-4-t-butylamino-6-cyclopropylamino-s-triazine;
- 2,4,5,6-tetrachloroisophthalonitrile;
- 3-(3,4-dichlorophenyl)-1,1-dimethylurea;
- zinc ethylenebisdithiocarbamate;
- copper thiocyanate;
- 4,5-dichloro-2-n-octyl-3-isothiazolone;
- N-(fluorodichloromethylthio)-phthalimide;
- N,N-dimethyl-N'-phenyl-N'-fluorodichloromethylthio-sulfamide;
- zinc 2-pyridinethiol-1-oxide;
- tetramethylthiuram disulfide;
- copper-10% nickel alloy solid solution;
- 2,4,6-trichlorophenylmaleimide;
- 2,3,5,6-tetrachloro-4-(methylsulfonyl)-pyridine;
- 3-iodo-2-propynyl butyl carbamate;
- diiodomethyl p-tolyl sulfone;
- bis dimethyl dithiocarbamoyl zinc ethylenebisdithiocarbamate;
- phenyl (bispyridil) bismuth dichloride;
- 2-(4-thiazolyl)-benzinmidazole;
- pyridine triphenyl borane;
- and 2-haloalkoxyaryl-3-isothiazolones is applied to, on or in the marine structure;
- wherein the ratio of the diphenyldione marine antifouling agent to the second marine antifouling agent is from 99:1 to 1:99.
A marine antifouling coating composition comprising a marine antifouling agent of the formula ##STR4## wherein R and R.sup.1 are independently selected from H, (C.sub.1 -C.sub.20)alkyl and halo(C.sub.1 -C.sub.20)alkyl;
- and a carrier selected from the group consisting of water, organic solvent, and mixtures thereof.
Dependencies are inferred from the claim text.