Fire protection material, high-pressure storage tank coated with said material, methods for preparing same, and uses thereof

Patent metadata

Field	Value
Publication number	US-10765897-B2
Application number	US-201314381515-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Feb 28, 2012
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

The present invention relates to a fire resistant material comprising a matrix of thermosetting elastomeric resin of the silicone resin type wherein endothermic fillers are incorporated as well as to a high pressure storage tank coated with said material, processes for the preparation thereof and uses thereof.

First claim

The invention claimed is:

1. A process for preparing a fire-proof material for a high pressure storage tank, the fire-proof material including a matrix of thermosetting elastomeric resin in which endothermic fillers are incorporated, the matrix of thermosetting elastomeric resin being a matrix of silicone resin, comprising the following steps:
a) preparing, at room temperature, a mixture including at least one precursor of the thermosetting elastomeric resin and at least one endothermic filler by gradually adding the at least one endothermic filler to the at least one precursor of the thermosetting elastomeric resin whereby a homogeneous dispersion is obtained;
b) adding, to the mixture obtained in step a), an agent enabling the thermosetting elastomeric resin to be obtained from the at least one precursor, wherein the adding of the agent is performed at room temperature; and
c) cold shaping the mixture obtained in step b) by casting, injection, or vacuum assisted transfer, into a mold on the high pressure storage tank to obtain the fire-proof material including the matrix of thermosetting elastomeric resin in which the endothermic fillers are incorporated.

2. A high pressure storage tank having an external surface only partially covered with the fire-proof material prepared by the process according to claim 1 ,
wherein the high pressure storage tank is a type IV tank, and
wherein at least one portion of the external surface of the high pressure storage tank not covered by the fire-proof material is either uncovered by any material or coated with a meltable material.

3. The high pressure storage tank according to claim 2 , wherein the external surface of said high pressure storage tank is at least partially covered with an intumescent substance.

4. The high pressure storage tank according to claim 3 , wherein at least one zone of the intumescent substance is replaced by a meltable material.

5. The high pressure storage tank according to claim 2 , wherein the external surface of said high pressure storage tank is at least partially covered with a fire inert insulating material, the fire inert insulating material being in the form of a fabric or sock configured to cover said high pressure storage tank.

6. The high pressure storage tank according to claim 5 , wherein said fire inert insulating material is covered with an intumescent substance.

7. A process for protecting a high pressure storage tank, comprising:
applying the fire-proof material according to claim 1 on only a portion of the external surface of the high pressure storage tank,
wherein the high pressure storage tank is a type IV tank.

8. The process according to claim 7 , further comprising:
applying an intumescent substance on all or part of the external surface of the high pressure storage tank, only the portion of the external surface of which is covered by the fire-proof material.

9. The process according to claim 8 , further comprising:
replacing at least one zone of the fire-proof material with a meltable material.

10. The process according to claim 9 , further comprising:
coating the high pressure storage tank, only the portion of the external surface of which is covered with the fire-proof material, with a fire inert insulating material.

11. The process according to claim 10 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, or the fire inert insulating material.

12. The process according to claim 10 , wherein all or part of the external surface of the high pressure storage tank is covered with a meltable material.

13. The process according to claim 12 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, the meltable material, or the fire inert insulating material.

14. The process according to claim 9 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, or the meltable material.

15. The process according to claim 9 , further comprising:
covering the fire-proof material with an intumescent substance.

16. The process according to claim 8 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank.

17. The process according to claim 7 , further comprising:
replacing at least one zone of the fire-proof material with a meltable material.

18. The process according to claim 17 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, or the meltable material.

19. The process according to claim 17 , further comprising:
covering the fire-proof material with an intumescent substance.

20. The process according to claim 7 , further comprising:
coating the high pressure storage tank, only the portion of the external surface of which is covered with the fire-proof material, with a fire inert insulating material.

21. The process according to claim 20 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, or the fire inert insulating material.

22. The process according to claim 20 , wherein all or part of the external surface of the high pressure storage tank is covered with a meltable material.

23. The process according to claim 22 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank, the meltable material, or the fire inert insulating material.

24. The process according to claim 7 , further comprising:
applying an adequate adhesion primary coat or surface treatment on all or part of the external surface of the high pressure storage tank.

25. The process according to claim 1 , further comprising:
before step b), outgassing the mixture obtained in step a) to obtain an outgassed mixture, wherein the agent enabling the thermosetting elastomeric resin to be obtained is added to the outgassed mixture.

26. The process according to claim 25 , further comprising:
before step c), outgassing the mixture obtained in step b) to obtain an outgassed thermosetting elastomeric resin mixture, wherein the cold shaping is performed on the outgassed thermosetting elastomeric resin mixture.

27. The process according to claim 26 , wherein an amount of the endothermic fillers expressed in weight with respect to a total weight of material of the thermosetting elastomeric resin is between 15% and 80%.

28. The process according to claim 27 , wherein the amount of said endothermic fillers expressed in weight with respect to the total weight of material of the thermosetting elastomeric resin is between 40% and 70%.

29. The process according to claim 1 , wherein the endothermic fillers are selected from aluminum trihydroxide (ATH), disodium tetraborate decahydrate (or borax), trisodium phosphate dodecahydrate, magnesium dihydroxide (or Brucite), Colemanite, a melamine monophosphate, a melamine pyrophosphate, a melamine polyphosphate zinc borate,

Assignees

• Commissariat Energie Atomique

Inventors

• Villalonga Stephane
• Nony Fabien
• Yvernes Jean-Luc
• Garonne Francois

Classifications

• C09K21/00 Primary

  Fireproofing materials (for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D5/18) · CPC title

• B05D2301/10

  Phosphates, phosphoric acid or organic salts thereof · CPC title

• C09K21/14

  Macromolecular materials · CPC title

• F17C1/12

  with provision for thermal insulation ({F17C1/14, F17C1/16 take precedence}; thermal insulation in general F16L59/00) · CPC title

• A62C3/065 Primary

  for containers filled with inflammable liquids · CPC title