Marine coatings

• US 9,533,006 B2
• Filed: 12/03/2012
• Issued: 01/03/2017
• Est. Priority Date: 11/19/2007
• Status: Active Grant

• Current Assignee: Washington University In St Louis
• Original Assignee: University of Washington
• Inventors: Jiang, Shaoyi, Xu, Xuewei, Li, Yuting, Keefe, Andrew, Xue, Hong, Chen, Shengfu
• Primary Examiner(s): ROGERS, JAMES WILLIAM
• Application Number:
  US13/692,958
• Publication Number:
  US 20130178125A1
• Time in Patent Office: 1,492 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 31/785 Polymers containing nitrogen
• CPC Class Codes: B63B 59/04 Preventing hull fouling anti-fouling paints C09D5/16
• CPC Class Codes: C09D 133/26 Homopolymers or copolymers of acrylamide or methacrylamide
• CPC Class Codes: C09D 151/085 on to polysiloxanes
• CPC Class Codes: C09D 153/00 Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: C09D 5/16 Antifouling paints; Underwater paints
• CPC Class Codes: C09D 5/1606 characterised by the anti-fouling agent
• CPC Class Codes: C09D 5/1637 Macromolecular compounds
• CPC Class Codes: C09D 5/165 containing hydrolysable groups C09D5/1643 takes precedence
• CPC Class Codes: C09D 5/1656 characterised by the film-forming substance C09D5/1637 takes precedence
• CPC Class Codes: C09D 5/1662 Synthetic film-forming substance
• CPC Class Codes: C09D 5/1668 Vinyl-type polymers
• CPC Class Codes: C09D 5/1675 Polyorganosiloxane-containing compositions
• CPC Class Codes: Y10T 428/31511 Of epoxy ether
• CPC Class Codes: Y10T 428/3154 Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31551 Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31725 Of polyamide
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31844 : Of natural gum, rosin, natural oil or lac
• CPC Class Codes: Y10T 428/31938 : Polymer of monoethylenically unsaturated hydrocarbon
• CPC Class Codes: Y10T 428/31942 : Of aldehyde or ketone condensation product
• CPC Class Codes: Y10T 442/10 : Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]

Abstract

Marine coatings including cationic polymers hydrolyzable to nonfouling zwitterionic polymers, coated marine surfaces, and methods for making and using the marine coatings.

Claims

1. A marine coating composition, comprising:

(a) a plurality of nanoparticles, each nanoparticle comprising a plurality of copolymers, wherein each copolymer comprises a zwitterionic component and a hydrophobic component, wherein the zwitterionic component comprises repeating units selected from the group consisting of carboxybetaine, sulfobetaine, phosphobetaine, and mixtures thereof, and wherein the hydrophobic component comprises repeating units produced from hydrophobic monomers; and

(b) a solid polymeric matrix, wherein the solid polymeric matrix comprises a polymer selected from the group consisting of rosins, polyesters, amino resins, polyurethanes, polyamides, polyimides, epoxy and phenolic resins, alkyd resins, polyphosphazenes, polysiloxanes, fluorinated polymers, and mixtures thereof,

wherein the nanoparticles are embedded in the solid polymeric matrix.

2. The composition of claim 1, wherein the plurality of copolymers are block copolymers.

3. The composition of claim 1 further comprising biocide.

4. The composition of claim 1, wherein each copolymer is a block copolymer, a random copolymer, or a graft copolymer.

5. The composition of claim 1, wherein each copolymer is a polydimethylsiloxane-b-polycarboxybetaine methacrylate (PDMS-b-PCBMA) or a polydimethylsiloxane-b-polysulfobetaine methacrylate (PDMS-b-PSBMA) diblock copolymer.

6. The composition of claim 1, wherein each copolymer is a polydimethylsiloxane-polyethyleneglycol monomethyl ether methacrylate-polycarboxybetaine methacrylate (PDMS-PEGMA-PCBMA) or a polydimethylsiloxane-polyethyleneglycol monomethyl ether methacrylate-polysulfobetaine methacrylate (PDMS-PEGMA-PSBMA) triblock copolymer.

7. A surface of a marine substrate treated with the composition of claim 1.

8. The surface of claim 7, wherein the substrate is a marine structure.

9. The surface of claim 8, wherein the marine structure is a vessel hull, a propeller, a periscope, a sensor, a fish net, or a bridge.

10. A method for treating a surface of a marine substrate, comprising applying the composition of claim 1 to a surface of a marine substrate.

11. The method of claim 10, wherein applying the composition comprises spraying or painting.

12. The composition of claim 1, wherein the copolymer is a triblock copolymer, wherein the zwitterionic component is a first block, and the hydrophobic component is a second block.

13. The composition of claim 12, wherein the second block comprises siloxane repeating units, and wherein the triblock copolymer further comprises a third block comprising neutral hydrophilic repeating units.

14. The composition of claim 12, wherein the triblock copolymer is a poly(carboxybetaine methacrylate)-poly(p-phenylene oxide)-poly(carboxybetaine methacrylate) (PCBMA PPO PCBMA), a poly(carboxybetaine methacrylate)-poly(ethylene oxide)-poly(carboxybetaine methacrylate) (PCBMA-PEO-PCBMA), a poly(sulfobetaine methacrylate)-poly(p-phenylene oxide)-poly(sulfobetaine methacrylate) (PSBMA-PPO-PSBMA), a poly(sulfobetaine methacrylate)-poly(ethylene oxide)-poly(sulfobetaine methacrylate) (PSBMA-PEO-PSBMA), a poly(carboxybetaine methacrylate)-poly(p phenylene oxide)-poly(sulfobetaine methacrylate) (PCBMA-PPO-PSBMA), or a poly(carboxybetaine methacrylate) poly(ethylene oxide) poly(sulfobetaine methacrylate) (PCBMA-PEO-PSBMA).