Controlled release compositions

Claim 2

The composition of claim 1 wherein the biologically active compound is 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-nitoprop anediol; 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-cyclopropylamino-s-triazine; 2,4,5,6-tetrachloroisophthalonitrile; N,N-dimethyl dichlorophenyl urea; zinc ethylenebisdithiocarbamate; copper thiocyanate; 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; diiodomethyl p-tolyl sulfone; bis dimethyl dithiocarbamoyl zinc ethylenebisdithiocarbamate; phenyl (bispyridil) bismuth dichloride; 2-(4-thiazolyl)-benzimidazole; pyridine triphenyl borane; phenylamides; halopropargyl compounds; and 2-haloalkoxyaryl-3-isothiazolones.

Claim 3

The composition of claim 2 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'-trichlorocarb anilide.

Claim 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; 4,4'-biphenol; dicyclopentadiene-phenol resins; phenol-formaldehyde condensates; crosslinked phenol-formaldehyde condensates; cresol-formaldehyde condensates ; and crosslinked cresol-formaldehyde condensates.

Claim 5

The composition of claim 1 wherein the weight ratio of biologically active compound to polyphenolic compound is from 0.1:99.9 to 95:5.

Claim 6

The composition of claim 5 wherein the weight ratio is from 1:10 to 9:1.

Claim 7

The composition of claim 1 further comprising a carrier is selected from the group consisting of water, 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.

Claim 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.

Claim 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.

Claim 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.