Antifouling structure having effect of preventing attachment...

Details Antifouling structure having effect of preventing attachment... Antifouling structure having effect of preventing attachment...

C - Chemistry, Metallurgy

08

K

C08K 5/47 (2006.01) A01N 25/10 (2006.01) B29C 47/02 (2006.01) D06M 16/00 (2006.01)

Patent

CA 2281464

structure comprises, as the major component, a molded member of a thermoplastic resin composition or a fibrous material which may be a fiber of the thermoplastic resin composition, a yarn coated with the thermoplastic resin composition, a rope coated with the thermoplastic resin composition or a woven fabric coated with the thermoplastic resin composition. The thermoplastic resin composition contains an antifouling compound represented by the following formula (1): (see formula 1) wherein Y represents hydrogen atom, an alkyl group, an alkenyl group or an aralkyl group, R represents hydrogen atom, a halogen atom or an alkyl group, R' represents hydrogen atom, a halogen atom or an alkyl group and R and R' may be bonded to each other to form a benzene ring. The leaching amount of the antifouling compound into an artificial sea water is controlled to 30 mg/cm3 or less at 25°C and 3 mg/cm3 or more at 15°C per a unit volume of the thermoplastic resin composition when integrated during initial 10 days after immersing the structure into the artificial sea water, thereby preventing the attachment of aquatic organisms for a long time. Also, the structure may be made water-permeable to have a water permeability of 1 cc/cm2~sec or more under a pressure of 18 cm water, thereby broaden the application field thereof.

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