| 摘要 |
A film-forming polymer is prepared by polymerisation of: from 4 to 50 mol% o f monomer units A selected from the group consisting of the trialkylsilyl este rs of an ethylenically unsaturated carboxylic acid, and mixtures thereof; from 5 to 45 mol% of monomer units B selected from the group consisting of the N- vinyl lactam monomers of general formula CH2=CH-NR'''''-CO-R' , the N-vinyl amides of general formula CH2=CH-N-CO-R'', the monomers of general formula CH2=CR'''-COO-R''''-NR'''''-CO-R' , the monomers of general formula CH2=CR'' '- COO-R''''-N-CO-R'', 2-pyrrolidone-1-isoprenyl ketone, and mixtures thereof, wherein R' is a n-alkylidene radical having 2 to 8 carbon atoms, R'' is selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl radicals having a maximum of 18 carbon atoms, R''' is H or CH3, R'''' is a n-alkylidene radical having from 1 to 8 carbon atoms, R''''' is H or R'', the balance of the monomer units being monomer units C selected from the group consisting of the esters of ethylenically unsaturated carboxylic acids with C1-C18 alcohols, styrene, alpha-methyl styrene, vinyl toluenes, a nd mixtures thereof. Antifouling paints having self-polishing properties in seawater and in freshwater are prepared which contain as essential component s the film-forming polymers and antifoulants.
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