Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1984-08-15
1986-03-18
Lawrence, Evan K.
Coating processes
With post-treatment of coating or coating material
Heating or drying
106 1505, 106 18, 106 1832, 106 1835, 422 6, 428907, 523122, 526240, B05D 500, C09D 514
Patent
active
045768382
ABSTRACT:
The anti-fouling compositions and process described herein are capable of preventing or delaying for prolonged periods the fouling of structures such as boats, ships, piers, etc., having substantial portions thereof submerged in water. Processes are described herein for preparing and applying these compositions as coatings to objects to be submerged in sea water. These compositions comprise a number of components, some of which may be reacted, including: (a) an organotin polymer or copolymer of the monomer having the formula R.sub.3 SnOOCR', wherein R and R' are defined hereinafter; (b) a hydrophilic component having poor water solubility, preferably being water insoluble and having at least two hydroxy groups per molecule, such as caster oil, partially hydrolyzed polyvinyl acetate, partially hydrolyzed copolymers of vinyl chloride and vinyl acetate, polymers of monovinyl ether of alkylene glycols such as ethylene glycol, etc.; (c) a hydrophobic component comprising a compound having 1-3 urethane groups therein and no more than about 20 carbon atoms preferably made by the reaction of an isocyanate compound, such as diisocyanate, with one or more hydroxy-containing solvents, such as ethanol, propanol, ethylene glycol monoethyl ether, etc., or a monoisocyanate with a di- or tri-hydroxy compound such as ethylene glycol, propylene glycol, glycerine, etc., preferably in the presence of low molecular weight ketones, esters and aromatic hydrocarbons, such as methyl ethyl ketone, cyclohexanone, toluene, etc.
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Lane Thomas
Rosen Murray
Lawrence Evan K.
Marine Shield Corp.
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