ERODIBLE SHIP-BOTTOM PAINTS FOR CONTROL OF MARINE FOULING

摘要

ABSTRACTThe present invention relates to a method of protectingmarine surfaces, comprising coating said marine surface with anantifouling paint comprising: a) toxicant, organic solvent andb) a film-forming water-insoluble, sea water-erodiblesubstantially organotin free polymeric binder, said polymericbinder having recurring groups represented by the formulawherein B is the residue of an ethylenically unsaturated monomer,X is H or CH3, R is selected from the group consisting of:(i) orwherein Z is NO2, halogen or CN; (ii) -(CH2)nY wherein n is aninteger from 1 to 4; and Y is selected from the group consistingof , -OR''', -SR''', , and wherein R' isC1 to C4 primary, secondary or tertiary alkyl, R" is H or R',R''' is alkyl or an aryl; (iii) a quaternized amino alkylrepresented by the formulawhere Y is Br, Cl or I, R', R" and R''' are the same or differentC1 to C18 alkyls; (iv) haloalkyl having at least one trihalo-methyl group, where the halogen is Br, F or C1 and the alkyl hasat least two carbons; (v) -(CH2)n?-R'''' where n is 1 or 2 andR'''' is R' or a phenyl group; (vi) -Si(R''')3 or -Si(OR''')3,and R''' is alkyl or an aryl.