Nippon Paint Compnay, Ltd.

Nippon Paint Marine Coatings Co., Ltd.

Naoki Yamamori

Junji Yokoi

Masayuki Matsuda

Akio Harada

Hiroharu Ohsugi

Kiyoaki Higo

Isao Nakamura

Kazunori Kanda

Yoshio Eguchi

Motoyoshi Yoshikawa

Ryoji Hamade

Satoshi Okamoto

Mamoru Shimada

Shinichi Ishikura

Yoshifumi Ichinose

Yasuhisa Nagase

Yoshio Okahata

Koichi Fukuda

Isamu Onishi

Kazuaki Masuda

Yoshinori Kushi

Nobuki Hayase

Hiroshi Tominaga

Tomokazu Arai

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 R, R, and Reach 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.

Copolymer and antifouling coating composition containing the same

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 &#x3bc;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. The base resin (B) has a group represented by the following general formula (1):&#x2014;COO-M-OCO-A&#x2003;&#x2003;(1)(wherein, M represents a divalent or higher valent metal, and A represents an organic acid residue of monobasic acid) or a group represented by the following general formula (2):&#x2014;COO&#x2014;Si(RRR)&#x2003;&#x2003;(2)(wherein, R, Rand R, which may be the same or different, represent an isopropyl group or an n-butyl group) in a side chain, or has a cross-linking structure represented by the following general formula (3):&#x2014;COO-M-OCO&#x2014;&#x2003;&#x2003;(3)(wherein, M represents the same meaning as described above).

Coating composition and method for producing the same, coating film and underwater structures

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&#xb0; 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 &#x3bc;m.

Coating composition, coating film, and method of reducing underwater friction

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)&#x2212;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&#xb0; 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.

Antifouling coating

An antifouling coating 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,

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 R, Rand Rmay 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.

Acrylic resin and antifouling coating

Biojelly-producing microorganism, microorganism-containing coating, microorganism-containing coating film

Resin composition, production method of boron-containing polymer and antifouling coating

Resin for use in an antifouling coating and antifouling coating

The present invention provides a nonelution type antifouling method which comprises applying a nonelution type antifouling coating composition comprising at least two resins insoluble in seawater and incompatible with each other on top of the outermost layer of underwater portion of a marine structure and forming a coating film having a microheterogeneo us structure in which granular or disk-like minute protrusions with a mean size of 10 nm to 20 &mgr;m in diameter comprising at least one of said resins occupy 5 to 49% of the surface area of the coating film.

Nonelution type antifouling method and antifouling coating composition

A novel method for controlled release of compounds having antimicrobial activity and a novel coating composition capable of controlled release of compounds having antimicrobial activity is provided. This invention relates to a method for releasing a compound having antimicrobial activity from a matrix at a controlled rate, which comprises incorporating an enzyme and a substrate in said matrix beforehand to allow said enzyme and said substrate to react with each other in said matrix to thereby produce said compound having antimicrobial activity; and further relates to a coating composition comprising a film-forming resin, an enzyme, and a substrate, said enzyme being capable of reacting with said substrate to produce a compound having antimicrobial activity.

Method for controlled release of compounds having antimicrobial activity

An antifouling coating composition which comprises at least two kinds of mutually incompatible resin compositions and which is capable of forming a microheterogenous coating film having a multiplicity of spherical or disk-like minute protrusions comprising at least one of the resin compositions,

Antifouling coating composition

Resin containing amine bonded thereto and antifouling paint

Hydrolyzable resin containing aldehyde bounded thereto and

A method for preventing settlement of aquatic fouling organisms on surface of an aquatic structure without environmental hazard is provided. The method is based upon absolutely novel concept to prevent the settlement by means of thick slime layer, i.e. bio-jelly, deposited on said surface. The present invention also provides a bio-jelly producing agent and a bio-jelly producing paint both useful for the present method. Further, the present invention provides a novel low toxic antifouling agent.

Method for preventing settlement of aquatic fouling organisms

Growing community of inventors

Osaka, Japan

Naoki Yamamori