Anti-fouling coating containing copper and graphite

• US 7,022,750 B2
• Filed: 04/04/2003
• Issued: 04/04/2006
• Est. Priority Date: 04/04/2003
• Status: Expired due to Fees

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Inventors: Zawacky, Steven R., Camp, Douglas R.
• Primary Examiner(s): Yoon, Tae H.
• Application Number:
  US10/407,740
• Publication Number:
  US 20040197322A1
• Time in Patent Office: 1,096 Days
• Field of Search: 523/122, 523/177, 428/78.09, 524/413, 524/495, 524/431, 106/18.26
• US Class Current: 523/177
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A01N 59/20 Copper
• CPC Class Codes: A61K 2300/00 Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00
• CPC Class Codes: A61K 33/34 Copper; Compounds thereof
• CPC Class Codes: A61K 33/44 Elemental carbon, e.g. charcoal, carbon black
• CPC Class Codes: A61K 45/06 Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• CPC Class Codes: C09D 5/1618 inorganic

Abstract

Anti-fouling compositions are disclosed. The compositions comprise a film-forming resin and effective amounts of graphite and copper. Methods for using the compositions are also disclosed, as are substrates coated with the compositions. The coatings find particular application on substrates that are submerged for extended periods of time in salt water. Methods for promoting oyster cultivation are also disclosed.

Claims

1. A coating composition comprising a liquid solvent, a film forming resin and effective amounts of graphite and copper, wherein the coating composition does not include an organotin containing material.

2. The coating composition of claim 1, wherein the graphite is in flake or granular form.

3. The coating composition of claim 1, wherein the graphite is expandable graphite.

4. The coating composition of claim 1, wherein the copper is in the form of cuprous oxide.

5. The coating composition of claim 4, wherein the graphite is expandable graphite.

6. The coating composition of claim 1, wherein the film forming resin is an epoxy amine resin.

7. The coating composition of claim 1, wherein the film forming resin is present in a weight percent of 1 to 98;

the graphite is present in a weight percent of 1 to 50; and

the copper is present in a weight percent of 1 to 50, with weight percent being based on the total active component weight of the composition.

8. A method for inhibiting fouling on a submerged substrate comprising applying to said substrate the coating of claim 1.

9. A substrate to which has been applied the coating of claim 1.

10. A coating composition comprising a liquid solvent, a film forming resin and effective amounts of expandable graphite and copper, wherein the coating composition does not include a triorganotin containing material.

11. The coating composition of claim 10, wherein the graphite is in flake or granular form.

12. The coating composition of claim 10, wherein the copper is in the form of cuprous oxide.

13. The coating composition of claim 10, wherein the film forming resin is an epoxy amine resin.

14. The coating composition of claim 10, wherein the film forming resin is present in a weight percent of 1 to 98;

the expandable graphite is present in a weight percent of 1 to 50; and

the copper is present in a weight percent of 1 to 50, with weight percent being based on the total active component weight of the composition.

15. A method for inhibiting fouling on a submerged substrate comprising applying to said substrate the coating of claim 10.

16. A substrate to which has been applied the coating of claim 10.