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

Antifouling condensation curing organopolysiloxane composition and underwater structure

An organopolysiloxane, polysiloxane technology, used in antifouling/underwater coatings, coatings, biocide-containing paints, etc., can solve the problems of low compatibility, non-reactivity, etc., to prevent Effects of aquatic organism deposition and growth

Inactive Publication Date: 2005-07-13
SHIN ETSU CHEM IND CO LTD
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these non-toxic antifouling coating compositions also suffer from environmental safety and sanitation problems, since the less compatible, non-reactive, polar group-containing silicone resins used as bleed oils are polyoxygen-containing Vinyl-based silicone resins (in which ethylene oxide or propylene oxide is added to the silicon atom via a C-C bond) or an alkane with an ethylene oxide or propylene oxide group bonded to the silicon atom at the end of the molecular chain Oxygenated Silicone

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antifouling condensation curing organopolysiloxane composition and underwater structure
  • Antifouling condensation curing organopolysiloxane composition and underwater structure
  • Antifouling condensation curing organopolysiloxane composition and underwater structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Composition prepared by the following method: the viscosity of 70 parts is 1500mm 2 / s of α, ω-dihydroxy-diphenyldimethyl-polysiloxane (the ratio of phenyl to all substituents bonded to the silicon atom is: 10mol%) and 15 parts specific surface area is 200m 2 / g of fumed silica, and they were thoroughly mixed under vacuum while heating at 150°C for 2 hours. Then, the mixture was uniformly mixed with 12 parts of vinyltris(methylethylketoxime)silane and 1 part of γ-glycidoxypropyl-triethoxysilane under vacuum. Under vacuum, the mixture was further mixed with 30 parts with a viscosity of 100 mm 2 / s of α, ω-trimethylsiloxy-dimethyl-polysiloxane mixed evenly.

Embodiment 2

[0072] The composition is prepared as in the method of Example 1, except that calcium silicate is used to replace the specific surface area of ​​200m 2 / g of fumed silica.

Embodiment 3

[0074] The composition is prepared as in Example 1, except that the viscosity is 20,000mm 2 / s of α, ω-dihydroxy-diphenyldimethyl-polysiloxane (the ratio of phenyl to all substituents bonded to silicon atoms: 10mol%) has a substitution viscosity of 1,500mm 2 / s of α, ω-dihydroxy-diphenyldimethyl-polysiloxane (the ratio of phenyl to all substituents bonded to silicon atoms: 10mol%), and the use viscosity is 1,000mm 2 / s of α,ω-trimethylsiloxy-dimethyl-polysiloxane.

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
specific surface areaaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

An antifouling polycondensation curing organopolysiloxane composition is provided, which comprises (A) in the form of a diorganopolysiloxane having at least two hydroxyl groups or hydrolyzable groups bonded to silicon atoms in the form of a mixture A base polymer wherein at least 2 mol % of all substituents bonded to silicon atoms are phenyl groups, (B) a silane having at least two hydrolyzable groups or a partially hydrolyzed polycondensate thereof, and (C) a non-reactive Sex, diorganopolysiloxane. The composition is cured at room temperature to form a coating which is non-toxic and harmless to the environment and which can effectively prevent the deposition and growth of aquatic organisms thereon for a long period of time.

Description

technical field [0001] The present invention relates to a room temperature curable organopolysiloxane composition suitable for use as a coating, and more particularly to an RTV organopolysiloxane composition for application to underwater structures (structure) (such as: ships, port equipment, buoys, pipelines, bridges, subsea stations, subsea oil well excavation equipment, power station diversion pipes, fishing nets and fixed coastal nets) to form antifouling coatings, the coating is suitable for Used to prevent the deposition and growth of aquatic organisms on the surface of underwater structures. The invention also relates to an underwater structure coated with the composition. Background technique [0002] Known in the art are various room temperature curable (RTV) silicone rubber compositions which cure to rubbery elastomers at room temperature. Rubbers obtained from these RTV compositions have improved weather resistance, durability, heat resistance, and cold resistan...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08G77/50C08K3/26C08K3/34C08K5/54C08L83/14C09D5/16C09D183/04C09D183/06C09D183/14
CPCC09D5/1675C09D183/04C08L83/00C08L2666/44C09D5/16
Inventor 坂本隆文木村恒雄
Owner SHIN ETSU CHEM IND CO LTD