Abstract: Provided are a copolymer containing: a structural unit (A) derived from a polymerizable monomer (a) having a silicon atom-containing group represented by formula (1) [wherein R1, R2, and R3 each independently represent a hydrocarbon group having a carbon number of 1 to 6]; and a structural unit (B) derived from a polymerizable monomer (b) copolymerizable with the polymerizable monomer (a) with the content of the structural unit (A) being from 40 mass % to 80 mass % in 100 mass % of the copolymer, the content of the structural unit (B) being from 20 mass % to 60 mass % in 100 mass % of the copolymer, and an acid value derived from free carboxy group being from 0.1 KOHmg/g to 60 KOHmg/g; and an antifouling coating composition containing the copolymer.

Abstract: Provided are a copolymer containing: a structural unit (A) derived from a polymerizable monomer (a) having a silicon atom-containing group represented by formula (1) [wherein R1, R2, and R3 each independently represent a hydrocarbon group having a carbon number of 1 to 6]; and a structural unit (B) derived from a polymerizable monomer (b) copolymerizable with the polymerizable monomer (a) with the content of the structural unit (A) being from 40 mass % to 80 mass % in 100 mass % of the copolymer, the content of the structural unit (B) being from 20 mass % to 60 mass % in 100 mass % of the copolymer, and an acid value derived from free carboxy group being from 0.1 KOHmg/g to 60 KOHmg/g.; and an antifouling coating composition containing the copolymer.

Abstract: Provided are coating composition containing an organic polymer particle (A) composed of an organic polymer having a hydroxyl group and a cationic group in a molecule, the weight average particle size of which being 10 to 35 ?m, and a base resin (B), wherein the content of the organic polymer particle (A) is 0.5 to 5.0% by weight in the solid content of the coating composition, and a method of producing the same, and a coating film and underwater structure using the coating composition.

Abstract: It is an object of the present invention to provide a coating composition which can attain low friction performance without impairing the functions of a conventional coating composition, a coated film formed by using the same and a method of reducing friction in water. A coating composition containing an organic polymer particle, wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 ?m.

Abstract: Provided are coating composition containing an organic polymer particle (A) composed of an organic polymer having a hydroxyl group and a cationic group in a molecule, the weight average particle size of which being 10 to 35 ?m, and a base resin (B), wherein the content of the organic polymer particle (A) is 0.5 to 5.0% by weight in the solid content of the coating composition, and a method of producing the same, and a coating film and underwater structure using the coating composition.

Abstract: It is an object of the present invention to provide a composition containing a hydrolysate of organosilicate which can be stored stably for long term in spite of containing a large amount of water. A composition containing a hydrolysate of organosilicate, a water-soluble and volatile stabilizer and water, wherein the content of water is 30% by weight or more of the whole composition.

Abstract: An antifouling coating which comprises a varnish comprised of a metal-containing acrylic resin having, in a side chain thereof, at least one group represented by the following formula (1): wherein X represents a group of the formula: n represents 0 or 1; Y represents a hydrocarbon group; M represents a metal; m represents an integer equal to [(the valence number of metal M)?1]; A represents an organic acid residue derived from a monobasic acid, said varnish having a nonvolatile fraction of not less than 40 weight % and a viscosity at 25° C. of not more than 18 poises and said antifouling coating having a volatile organic compound (VOC) content of not more than 400 g/L.

Abstract: It is an object of the present invention to provide a coating composition which can attain low friction performance without impairing the functions of a conventional coating composition, a coated film formed by using the same and a method of reducing friction in water. A coating composition containing an organic polymer particle, wherein said organic polymer particle has the solubility at 23° C. in the artificial seawater specified in ASTM D1141-98 of 15 g/liter or less, the water-absorbing amount for the artificial seawater specified in ASTM D1141-98 of 0.01% by mass or more and a particle diameter of 0.05 to 100 ?m.

Abstract: An antifouling coating which comprises a varnish comprised of a metal-containing acrylic resin having, in a side chain thereof, at least one group represented by the following formula (1): wherein X represents a group of the formula: n represents 0 or 1; Y represents a hydrocarbon group; M represents a metal; m represents an integer equal to [(the valence number of metal M)-1]; A represents an organic acid residue derived from a monobasic acid, said varnish having a nonvolatile fraction of not less than 40 weight % and a viscosity at 25° C. of not more than 18 poises and said antifouling coating having a volatile organic compound (VOC) content of not more than 400 g/L.

Abstract: The present invention has for its object to provide an antifouling coating improved in such a manner that the coating film formed therefrom may retain a steady polishing rate over a long period and be not ready to develop cracks and other defects, thus exhibiting a excellent long-term antifouling performance. The composition contains an acrylic resin having at least one group represented by the following general formula (1): (wherein R1, R2 and R3 may be the same or different and each represents a hydrocarbon residue of 1 to 20 carbon atoms) in its side chain and additionally at least one group represented by the following general formula (2): (wherein x is a group represented by the formula: n is equal to 0 or 1; Y represents a hydrocarbon; M represents a divalent metal; and A represents a monobasic organic acid residue) in its side chain.

Abstract: The present invention provides a microorganism which, when an underwater structure is formed with a coating film containing it, produces a biojelly in water to prevent fouling of the structure with macroscopic aquatic life, such a coating or a coating film, and a method of preventing attachment of macroscopic aquatic life which comprises using said coating or coating film. The present invention is directed to a strain of microorganism belonging to the genus Alteromonas and having the ability to produce a biojelly.

Abstract: The present invention is to provide a resin composition comprising a boron-containing polymer useful as an antifouling coating which does not contain heavy metal from an environmental viewpoint. Thus, the present invention provides a resin composition which comprises a boron-containing polymer having, in a side chain or at a terminal thereof, at least one group represented by the following formula (1): in the formula, R1 is a part of an acid group; R2 groups are the same or different and each represents a substituted or unsubstituted alkyl or aryl; X represents an oxygen or sulfur atom; Y represents a primary to tertiary amine or a heterocyclic compound containing a substituted or unsubstituted nitrogen atom; and n is 1 or 2.

Abstract: An antifouling coating

Abstract: An antifouling coating

Abstract: The present invention has for its object to provide a low friction resistance coating film in water, which is capable of reducing the frictional resistance in the part of a ship or a piping where frictions with fluids such as water may take place. The present invention is directed to a low friction resistance coating film in water of which surface has a water contact angle of 0 to 40°.

Abstract: The present invention has for its object to provide an antifouling coating improved in such a manner that the coating film formed therefrom may retain a steady polishing rate over a long time period and be not ready to develop cracks and other defects, thus exhibiting a excellent long-term antifouling performance.

Abstract: The present invention is to provide a resin composition comprising a boron-containing polymer useful as an antifouling coating which does not contain heavy metal from an environmental viewpoint.

Abstract: The present invention is related to a resin for use in an antifouling coating which is a polymer obtained by polymerizing a polymerizable unsaturated monomer(s) and having, at side chain terminals thereof, a trisubstituted borane-amine complex and an azomethine group, or a group represented by the following general formula (1): (wherein M represents a metal selected from the group consisting of copper, zinc, nickel and cobalt, - - - means a chemically bound state, W represents —N(R1)R2— (in which R1 and R2 may be the same or different and each represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms), —OCO—, —OSO2— or L represents an alkylene group containing 1 to 4 carbon atoms, and m represents an integer of 0 to 4).

Abstract: The present invention provides a microorganism which, when an underwater structure is formed with a coating film containing it, produces a biojelly in water to prevent fouling of the structure with macroscopic aquatic life, such a coating or a coating film, and a method of preventing attachment of macroscopic aquatic life which comprises using said coating or coating film.

Abstract: An antifouling coating