Unlock instant, AI-driven research and patent intelligence for your innovation.

Antifouling paint composition

A technology of antifouling coatings and compositions, applied in the field of copolymers, which can solve the problems of difficulty in adding metal atoms, difficulty in showing polishing stability and antifouling effect, low adhesion of the base layer, etc.

Active Publication Date: 2006-04-19
MITSUBISHI CHEM CORP
View PDF15 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For those having low surface tension properties described in JP-A-62-252480, JP-A-63-2995, JP-A-5-78617, JP-A-5-287203 and JP-A-62-156172 For antifouling coatings, it is difficult to maintain low surface tension in seawater and exhibit long-term antifouling effect, and these coatings have the problem of low adhesion to the substrate
[0009] Although the copolymer used in JP-A-2001-72869 is obtained by reacting a monovalent organic acid residue on a side chain of a copolymer having a polysiloxane structure and a carboxyl group with a divalent metal oxide, the It is not easy for a metal atom to be added to a carboxyl group
As a result, coatings using such copolymers tend to struggle to exhibit self-polishing stability and long-term antifouling effects
Also, this paint has a problem of low adhesion to the base layer, and there is also a problem that the antifouling effect deteriorates when a pigment is added to a coating composition comprising this copolymer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment M1

[0104] [Preparation Example M1: Preparation of Monomer Mixture M1 Including Metal Atom-Containing Polymerizable Monomer]

[0105] 85.4 parts of propylene glycol methyl ether (PGM) and 40.7 parts of zinc oxide were charged into a four-necked flask equipped with a condenser, a thermometer, a dropping funnel and a stirrer, and the mixture was heated to 75° C. while stirring. A mixture of 43.1 parts of methacrylic acid, 36.1 parts of acrylic acid and 5 parts of water was then added dropwise at a steady rate through the dropping funnel over 3 hours. Further, stirring was performed for 2 hours, followed by adding 36 parts of n-butanol to obtain a transparent monomer mixture M1 including a metal atom-containing polymerizable monomer. The solids content was 44.8% by weight.

preparation Embodiment M2

[0106] [Preparation Example M2: Preparation of Monomer Mixture M2 Including Metal Atom-Containing Polymerizable Monomer]

[0107] 72.4 parts of propylene glycol methyl ether (PGM) and 40.7 parts of zinc oxide were charged into a four-necked flask equipped with a condenser, a thermometer, a dropping funnel and a stirrer, and the mixture was heated to 75° C. while stirring. A mixture of 30.1 parts of methacrylic acid, 25.2 parts of acrylic acid and 51.6 parts of tertiary acid was then added dropwise at a steady rate through the dropping funnel over 3 hours. Further, stirring was performed for 2 hours, followed by adding 11 parts of PGM to obtain a transparent monomer mixture M2 including a metal atom-containing polymerizable monomer. The solids content was 59.6% by weight.

preparation Embodiment M3

[0108] [Preparation Example M3: Preparation of Monomer Mixture M3 Including Metal Atom-Containing Polymerizable Monomer]

[0109] Charge 60 parts of xylene, 13 parts of propylene glycol methyl ether (PGM) and 40.7 parts of zinc oxide into a four-necked flask equipped with a condenser, thermometer, dropping funnel and stirrer, and heat the mixture while stirring to 75°C. A mixture of 32.3 parts methacrylic acid, 27 parts acrylic acid, 37.7 parts oleic acid, 2.3 parts acetic acid, and 5.8 parts propionic acid was then added dropwise at a steady rate through the dropping funnel over 3 hours. Further, stirring was performed for 2 hours, followed by adding 77 parts of xylene and 46 parts of PGM to obtain a transparent monomer mixture M3 including a metal atom-containing polymerizable monomer. The solids content was 39.6% by weight.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

An object of the present invention is to provide an antifouling paint composition which shows an excellent antifouling effect in seawater for a long period of time, and has excellent adhesion and recoating properties to a substrate. The present invention relates to an antifouling pain composition comprising a copolymer which is obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (a) having two (meth)acryl end groups, and which contains bivalent metal atom. The copolymer is also obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (b) having one (meth)acryl end group, and metal atomcontaining polymerizable monomer (c,) having two unsaturated groups and metal atom selected from Mg, Zn, and Cu.

Description

technical field [0001] The present invention relates to an antifouling coating composition, and a copolymer suitable as a constituent thereof. In particular, the present invention relates to an antifouling paint composition as a coating capable of inhibiting the attachment and accumulation of marine organisms and seaweeds on marine structures, fishing nets, and the bottom of ships. Background technique: [0002] In general, submerged parts of ships and structures in the ocean need to be provided with antifouling coatings to prevent corrosion of ships and reduction in cruising speed due to the attachment of marine organisms such as barnacles, ship borers and algae. The antifouling coating is also applied to fishing nets in farming to prevent fish and shellfish kills caused by marine organisms clinging to the nets. [0003] Antifouling substances are usually contained in antifouling coatings. The elution of this substance in seawater illustrates its antifouling effect. If t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D5/16C09D143/04C09D143/00C09D133/14
Inventor 杉原光律池上幸弘堀田一彦岩濑国男中村淳一
Owner MITSUBISHI CHEM CORP