Claims
- 1. In an improved coating composition for controlling the attachment and growth of fouling organisms, said composition comprising a liquid diluent and, as a film-forming component of said coating composition, from 1 to 50%, based on the weight of said composition, of a biologically active copolymer obtained by reacting in the presence of a polymerization initiator and a solvent at least one solubilized triorganotin compound of the general formula ##STR3## wherein said organotin compound constitutes from 10 to 90 mole % of the total monomers, with at least one solubilized copolymerizable monomer of the general formula ##STR4## and from 0.01 to 10%, based on the total monomer weight, of a crosslinking agent selected from the group consisting of divinyl benzene, compounds of the formulae ##STR5## esters of acrylic or methacrylic acid with polyfunctional alcohols and phenols, wherein said esters contain from 2 to 4 residues of said acid, each R.sup.1 is individually selected from the group consisting of alkyl radicals containing from 1 to 8 carbon atoms, cycloalkyl and aryl radicals, R.sup.2 and R.sup.4 are individually selected from hydrogen and methyl radicals and R.sup.3 represents an alkyl radical containing from 1 to 18 carbon atoms, a cyclohexyl or a phenyl radical, the improvement which resides in reacting said triorganotin compound, copolymerizable monomer and crosslinking agent in the presence of at least one liquid aliphatic or cycloaliphatic hydrocarbon containing from 7 to 14 carbon atoms as the solvent for the reactants.
- 2. A liquid coating composition as set forth in claim 1 wherein said solvent consists essentially of at least one aliphatic hydrocarbon containing from 7 to 14 carbon atoms.
- 3. A liquid coating composition as set forth in claim 1 wherein said solvent contains from 50 to 100% by volume of said aliphatic hydrocarbon, any remaining portion of said solvent being a liquid aromatic hydrocarbon.
- 4. A liquid coating composition as set forth in claim 3 wherein said aliphatic hydrocarbon is heptane or a mixture of aliphatic hydrocarbons containing heptane as a major constituent and said liquid aromatic hydrocarbon is xylene.
- 5. A liquid coating composition as set forth in claim 1 wherein said triorganotin compound constitutes from 30 to 70 mole % of the total monomers.
- 6. A liquid coating composition as set forth in claim 1 wherein the concentration of monomers is from 1.5 to 5 moles per liter of reaction mixture.
- 7. A liquid coating composition as set forth in claim 6 wherein said concentration is greater than 2 moles per liter.
Parent Case Info
This is a divisional of application Ser. No. 738,001 filed Nov. 2, 1976.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3167473 |
Leebrick |
Jan 1965 |
|
Non-Patent Literature Citations (1)
Entry |
Encyclopedia of Polymer Science & Technology, vol. 4 (Interscience), N. Y., 1966, pp. 336-337. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
738001 |
Nov 1976 |
|