Fouling-resistant composition comprising sterols and/or derivatives thereof

Patent metadata

Field	Value
Publication number	US-9388316-B2
Application number	US-201214238985-A
Country	US
Kind code	B2
Filing date	Aug 15, 2012
Priority date	Aug 18, 2011
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

The present invention provides a fouling-resistant composition which comprises an elastomer and a component comprising sterol(s) and/or sterol derivative(s), wherein the component is selected from acylated lanolin, alkoxylated lanolin, or lanolin oil, or a composition comprising at least 20 weight % of one or more sterol(s), at least 20 weight % of one or more C 1 -C 12 sterol ester(s), or at least 20 weight % of alkoxylated sterol(s), wherein weight % is the percentage of the sterol or sterol derivative to the total weight of the component.

First claim

The invention claimed is:

1. A fouling-resistant coating composition comprising a crosslinkable elastomer, an organic solvent, and a component selected from the group consisting of acylated lanolin, alkoxylated lanolin and lanolin oil, wherein the elastomer is a polymer comprising a repeating unit of the general structure —[SiR 1 R 2 —O]—, wherein R 1 and R 2 are independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, an aralkyl group and a vinyl group.

2. The fouling-resistant coating composition of claim 1 , wherein the acylated lanolin is C 1 -C 12 acylated lanolin.

3. The fouling-resistant coating composition of claim 1 , wherein the acylated lanolin is acetylated lanolin.

4. The fouling-resistant coating composition of claim 1 , wherein the weight ratio of the component to the elastomer is about 1-30%.

5. The fouling-resistant coating composition of claim 2 , wherein the weight ratio of the component to the elastomer is about 1-30%.

6. The fouling-resistant coating composition of claim 3 , wherein the weight ratio of the component to the elastomer is about 1-30%.

7. The fouling-resistant coating composition of claim 1 , wherein the elastomer is a mixture of organosiloxane polymer(s).

8. The fouling-resistant coating composition of claim 3 , wherein the elastomer is a mixture of organosiloxane polymer(s).

9. The fouling-resistant coating composition of claim 4 , wherein the elastomer is a mixture of organosiloxane polymer(s).

10. The fouling-resistant coating composition of claim 1 , wherein R 1 and R 2 are independently selected from the group consisting of methyl and phenyl.

11. The fouling-resistant coating composition of claim 1 , wherein R 1 and R 2 are methyl.

12. A method for inhibiting fouling of a substrate in an aquatic environment, the method comprising applying a fouling-resistant coating composition to the substrate, and then immersing the substrate in the aquatic environment;
wherein the fouling-resistant coating composition comprises an elastomer, an organic solvent, and a component selected from the group consisting of acylated lanolin, alkoxylated lanolin and lanolin oil, wherein the elastomer is a polymer comprising a repeating unit of the general structure —[SiR 1 R 2 —O]—, wherein R 1 and R 2 are independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, an aralkyl group and a vinyl group.

13. A substrate comprising a substrate coated with the fouling-resistant coating composition of claim 1 .

Assignees

• Tyson Brent Vickers
• Reynolds Kevin John
• Akzo Nobel Coatings Int Bv

Inventors

• Tyson Brent Vickers
• Reynolds Kevin John

Classifications

• C09D5/1687

  Use of special additives · CPC title

• C09D5/1625 Primary

  organic · CPC title

• C09D5/1675 Primary

  Polyorganosiloxane-containing compositions · CPC title

• C09D183/06

  containing silicon bound to oxygen-containing groups (C09D183/12 takes precedence) · CPC title

• C08K5/10

  Esters; Ether-esters · CPC title