DAMAGE-RESISTANT EPOXY COMPOUND

Abstract

A composition includes a cross-linkable epoxy resin, a polystyrene-polybutadiene-polymethylmethacrylate tri-block copolymer, and a filler material. The polystyrene-polybutadiene-polymethylmethacrylate tri-block copolymer has a concentration ratio of from about 1:1:1 to about 1:1:1.5.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a coating disposed on a pipe substrate, in accordance with an exemplary embodiment of the present invention.

FIG. 2 shows an image comparing a coating similar in composition to a conventional damage resistant coating and a coating formed in accordance with an exemplary embodiment of the present invention.

Claims

1. A composition comprising: a cross-linkable epoxy resin;a polystyrene-polybutadiene-polymethylmethacrylate tri-block copolymer, having a concentration ratio of from about 1:1:1 to about 1:1:1.5; anda filler material.

2. The composition of claim 1, wherein the cross-linkable epoxy resin constitutes about 20% to about 80% by weight of the composition.

3. The composition of claim 2, wherein the cross-linkable epoxy resin constitutes about 35% to about 70% by weight of the composition.

4. The composition of claim 1, wherein the tri-block copolymer constitutes about 1% to about 20% by weight of the composition.

5. The composition of claim 1, wherein the filler material constitutes about 0.001% to 65% by weight of the composition.

6. The composition of claim 1, further comprising a cross-linking agent.

7. The composition of claim 1, further comprising a catalyst.

8. The composition of claim 1, wherein the cross-linkable epoxy resin comprises a thermoset epoxy resin.

9. The composition of claim 1, further comprising a curing agent.

10. A method of protecting an article, the method comprising: coating the article with a composition comprising: a cross-linkable epoxy resin;a polystyrene-polybutadiene-polymethylmethacrylate tri-block copolymer having a concentration ratio of from about 1:1:1 to about 1:1:1.5; anda filler material; andcuring the composition while disposed on the article.

11. The method of claim 10, wherein the cross-linkable epoxy resin constitutes about 20% to about 80% by weight of the composition.

12. The method of claim 11, wherein the cross-linkable epoxy resin constitutes about 35% to about 50% by weight of the composition.

13. The method of claim 10, wherein the tri-block copolymer constitutes about 1% to about 20% by weight of the composition.

14. The method of claim 10, wherein the filler material constitutes about 0.001% to 65% by weight of the composition.

15. An article comprising: a substrate having an outer surface; anda coating disposed on at least a portion of the outer surface, wherein the coating comprises: a cross-linkable epoxy resin; anda polystyrene-polybutadiene-polymethylmethacrylate tri-block copolymer having a concentration ratio of from about 1:1:1 to about 1:1:1.5;wherein the coating complies with the CSA Z245.20-02-12.11 Flexibility Test at −30° C.

16. The article of claim 15, wherein the cross-linkable epoxy resin constitutes about 20% to about 70% by weight of the coating.

17. The article of claim 16, wherein the cross-linkable epoxy resin constitutes about 30% to about 50% by weight of the coating.

18. The article of claim 15, wherein the tri-block copolymer constitutes about 1% to about 20% by weight of the coating.

19. The article of claim 15, further comprising a filler material.

20. The article of claim 19, wherein the filler material constitutes about 0.001% to 65% by weight of the coating.

21. The article of claim 15, wherein the substrate comprises steel.

22. The article of claim 15, wherein the substrate comprises one of pipe, steel pipes, valves, pumps, tapping saddles, manifolds, pipe hangers, ladders, rebar, mesh, cable and wire rope, I-beams, column coils, anchor plates, and chairs.