Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae. The composition comprises a solution of an epoxy resin containing a dialkyldimethyl ammonium compound or an alkylbenzylmethyl ammonium compound or combinations thereof. The invention also relates to articles coated with the composition to prevent the formation of algae thereon.

Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae or fungi. The composition comprises a vinyl polymer or copolymer emulsion containing a dialkyldimethyl ammonium compound with or without an alkylbenzyldimethyl ammonium compound. The preparation of the composition must be done with care in order to prevent the added quaternary ammonium compound from destabilizing the emulsion polymer. The invention also relates to articles coated with the composition to prevent the formation of algae and fungi thereon.

Abstract: Biocidally active surface coating compositions have excellent resistance to attack by algae, fungi, and other microorganisms and have high activity against the deposition of biota. The surface coatings exhibit antimicrobial activity against a broad range of microoganisms when bonded to a variety of surfaces. The active chemical is not removed from these surfaces even after repeated washing with water or submerging the surfaces in water for an extended period of time. This antimicrobial activity is not attributed to a slow release of the active ingredient, but rather to the active non-leachable surface. The active quaternary ammonium compounds in monomeric forms have the structural formulas as follows: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents an unsubstituted or substituted alkyl or hydroxalkyl group or a derivative thereof having from 1 to 20 carbon atoms; Y represents hydrogen, an unsubstituted or substituted alkyl group, or a derivative thereof having up to 10 carbon atoms; and X.sup.

Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae or fungi. The composition comprises a vinyl polymer or copolymer emulsion containing a dialkyldimethyl ammonium compound with or without an alkylbenzyldimethyl ammonium compound. The preparation of the composition must be done with care in order to prevent the added quaternary ammonium compound from destabilizing the emulsition polymer. The invention also relates to articles coated with the composition to prevent the formation of algae or fungi thereon.