Claims
- 1. A controlled release composition comprising(a) at least 0.5 ppm of a biologically active compound selected from the group consisting of: 5-chloro-2-methyl-3-isothiazolone; 2-methyl-3-isothiazolone; 2-n-octyl-3-isothiazolone; 4,5-dichloro-2-n-octyl-3-isothiazolone; 1,2-dibromo-2,4-dicyanobutane; methylene-bis-thiocyanate; 2-thiocyanomethylthiobenzothiazole; tetrachloroisophthalonitrile; 5-bromo-5-nitro-1,3-dioxane; 2-bromo-2-nitopropanediol; 2,2-dibromo-3-nitrilopropionamide; N,N′-dimethylhydroxyl-5,5′-dimethylhydantoin; bromochlorodimethylhydantoin; 1,2-benzisothiazolin-3-one; 4,5-trimethylene-2-methyl-3-iosthiazolone; 5-chloro-2-(2,4-dichlorophenoxy)phenol; 3,4,4′-trichlorocarbanilide; manganese ethylenebisdithiocarbamate; zinc dimethyl dithiocarbamate; 2-methyl-4-t-butylamino-6-cvclopropylamino-s-triazine; 2,4,5,6-tetrachloroisophthalonitrile; N,N-dimethyl dichlorophenyl urea; zinc ethylenebisdithiocarbamate; N-(fluorodichloromethylthio)-phthalimide; N,N-dimethyl-N′-phenyl-N′-fluorodichloromethylthio-sulfamide; zinc 2-pyridinethiol-1-oxide; tetramethylthiuram disulfide; 2,4,6-trichlorophenylmaleimide; 2,3,5,6-tetrachloro-4-(methylsulfonyl)-pyridine; 3-iodo-2-propynyl butyl carbamate; bis dimethyl dithiocarbamoyl zinc ethylenebisdithiocarbamate; phenyl (bispyridil) bismuth dichloride; 2-(4-thiazolyl)-benzimidazole; pyridine triphenyl borane; phenylamides; halopropargyl compounds; and 2-haloalkoxyaryl-3-isothiazolones; (b) a polyphenolic compound of the formula wherein:A=CR4R5, dicyclopentadiene; R1=H, (C1-C8)alkyl; R2, R3, R4, R5, R6 are independently selected from R1, OR1, SR1, NO2, CN, CO2R1, halo, phenyl, substituted phenyl, phenoxy, substituted phenoxy, (C1-C4)alkoxyphenyl, substituted (C1-C4)alkoxyphenyl; m=1; n=1-100; and (c) an organic solvent carrier; wherein the biologically active compound and the polyphenolic compound are in a weight ratio relative to each other of from 1:10 to 9:1; and wherein the polyphenolic compound is optionally crosslinked.
- 2. A coating composition comprising from 0.1 to 30 weight percent, based on weight of the coating, of the controlled release composition of claim 1.
- 3. The composition of claim 1 wherein the biologically active compound is selected from the group consisting of 2-methyl-3-isothiazolone, 5-chloro-2-methyl-3-isothiazolone, 2-n-octyl-3-isothiazolone, 4,5-dichloro-2-n-octyl-3-isothiazolone, benzisothiazolone, 4,5-trimethylene-3-isothiazolone, 3-iodo-2-propynyl butyl carbamate; 5-chloro-2-(2,4-dichlorophenoxy)phenol and 3,4,4′-trichlorocarbanilide.
- 4. The composition of claim 1 wherein the polyphenolic compound is selected from the group consisting of 2,6-bis(2′,4′-dihydroxybenzyl)-4-methylphenol; dicyclopentadiene-phenol resins; phenol-formaldehyde condensates; crosslinked phenol-formaldehyde condensates; cresol-formaldehyde condensates; and crosslinked cresol-formaldehyde condensates.
- 5. The coating composition of claim 2 wherein the composition is a marine coating composition further comprising a binder and a solvent.
- 6. The coating composition of claim 5 wherein the binder is selected from one or more of polyvinyl chloride in a solvent-based system, chlorinated rubber in a solvent-based system, acrylic resins in solvent based systems, vinyl chloride-vinyl acetate copolymer in solvent-based systems, butadiene-styrene rubbers, butadiene-acrylonitrile rubbers, butadiene-styrene-acrylonitrile rubbers, drying oils, asphalt, epoxies and siloxanes.
- 7. The composition of claim 1 further comprising a carrier is selected from the group consisting of acetonitrile, ethyl acetate, butyl acetate, toluene, xylene, methanol, ethanol, acetone, methyl ethyl ketone, methyl iso-butyl ketone, ethylene glycol, diethylene glycol, propylene glycol, and dipropylene glycol.
- 8. A method for controlling or inhibiting the growth of fungi, bacteria, algae, marine fouling organisms, plants, and insects comprising introducing a composition of claim 1 to a locus to be protected.
- 9. The method of claim 8 wherein the locus to be protected is selected from: cooling towers; air washers; mineral slurries; pulp and paper processing fluids; paper coatings; adhesives; caulks; mastics; sealants; agriculture adjuvant preservation; construction products; cosmetics and toiletries; shampoos; disinfectants and antiseptics; formulated industrial and consumer products; soaps; laundry rinse waters; leather and leather products; wood; plastics; lubricants; hydraulic fluids; medical devices; metalworking fluids; emulsions and dispersions; paints; varnishes; latexes; odor control fluids; coatings; petroleum processing fluids; fuel; oil field fluids; photographic chemicals; printing fluids; sanitizers; detergents; textiles; textile products; marine structures; plants; soil; and seeds.
- 10. The method of claim 9 wherein the marine structure is selected from the group consisting of boats, ships, oil platforms, piers, pilings, docks, elastomeric rubbers, and fish nets.
- 11. The composition of claim 1 wherein the polyphenolic compound is a phenol-formaldehyde condensate and the biologically active compound is 4,5-dichloro-2-n-octyl-3-isothiazolone.
- 12. A method for controlling or inhibiting the growth of marine fouling organisms comprising introducing a composition of claim 11 to a marine structure.
- 13. The composition of claim 1 comprising more than one biologically active compound.
- 14. The coating composition of claim 2 wherein the polyphenolic compound is selected from one or more of phenol-formaldehyde condensates and cresol-formaldehyde condensates.
Parent Case Info
This is a nonprovisional application of prior pending provisional application Ser. No. 60/047,966 filed May 28, 1997.
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