Bioinspired thermal activated systems and self-softening materials

Patent metadata

Field	Value
Publication number	US-2025171647-A1
Application number	US-202318841857-A
Country	US
Kind code	A1
Filing date	Mar 6, 2023
Priority date	Mar 4, 2022
Publication date	May 29, 2025
Grant date	—

Abstract

Materials comprising a protective coating for thermal protection are disclosed herein. The protective coating is comprised of a sacrificial layer, sacrificial component, or an intumescent layer organized in diverse geometries bioinspired from the thermal resistant structures in pyrophytic plants from the Banksia genus. The protective coating can be applied to various substrates and used for thermal management, water rescue, or crash safety.

First claim

1 . A protective coating comprising at least one intumescent layer and at least one sacrificial component.

2 . The coating of claim 1 , wherein the sacrificial component is disposed on, layered under, or partially embedded or fully embedded in the intumescent layer.

3 . (canceled)

4 . The coating of claim 1 , wherein the sacrificial component is comprised of particles, films, or stacks of tablets.

5 . The coating of claim 1 , wherein the sacrificial component is comprised of insulating materials that can undergo phase transformations.

6 . (canceled)

7 . The coating of claim 1 , wherein the sacrificial component is adapted to thermally degrade and consume O 2 to form an ash layer that lowers a permeability of O 2 or prevents O 2 from passing through and acts as an insulating layer.

8 . The coating of claim 1 , wherein the sacrificial component is adapted to form a non-combustible gas when heated or burned.

9 - 10 . (canceled)

11 . The coating of claim 1 , wherein the sacrificial component is adapted to form a gas, wherein said gas is noncombustible and fills spaces in the intumescent layer as the intumescent layer expands.

12 . The coating of claim 1 , wherein the sacrificial component degrades upon heating with a neutral or endothermic contribution.

13 . A protective coating comprising at least one sacrificial layer and at least one intumescent layer.

14 - 15 . (canceled)

16 . The coating of claim 13 , wherein the sacrificial layer is comprised of decomposable polymeric or inorganic materials.

17 . The coating of claim 13 , wherein the sacrificial layer is comprised of insulating materials that can undergo phase transformations.

18 . (canceled)

19 . The coating of claim 13 , wherein the sacrificial layer is adapted to thermally degrade and consume O 2 to form an ash layer that lowers permeability of O 2 or prevents O 2 from passing through and act as an insulating layer.

20 . The coating of claim 13 , wherein the sacrificial layer is adapted to form a non-combustible gas when heated or burned.

21 - 22 . (canceled)

23 . The coating of claim 13 , wherein the sacrificial layer degrades upon heating with a neutral or endothermic contribution.

24 - 34 . (canceled)

35 . A protective coating comprising at least one sacrificial component, at least one sacrificial layer, or a combination thereof.

36 - 37 . (canceled)

38 . The coating of claim 35 , wherein the sacrificial component is comprised of particles, films, or stacks of tablets.

39 . The coating of claim 35 , wherein the sacrificial component and/or the sacrificial layer is comprised of thermally insulating materials that can undergo phase transformations.

40 . (canceled)

41 . The coating of claim 35 , wherein the sacrificial component and/or the sacrificial layer is adapted to thermally degrade and consume O 2 to form an ash layer that lowers a permeability of O 2 or prevents O 2 from passing through, thereby providing thermal insulation.

42 . The coating of claim 35 , wherein the sacrificial component and/or the sacrificial layer is adapted to form a non-combustible gas when heated or burned.

43 - 44 . (canceled)

45 . The coating of claim 35 , wherein the sacrificial component and/or the sacrificial layer degrades upon heating with a neutral or endothermic contribution.

46 - 66 . (canceled)

Assignees

• Univ California

Inventors

• Kisailus David
• Montroni Devis

Classifications

• C09D7/40

  Additives · CPC title

• C09D5/185 Primary

  Intumescent paints · CPC title

• A62C2/065

  having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent · CPC title

• E04B1/94 Primary

  against fire ({fire protection of partitions E04B2/7403, E04B2/7409; supporting constructions for ceilings having the capability of expansion in case of fire E04B9/08}; fire-fighting A62C, {e.g. fire prevention or containment A62C2/00}; impregnation of wood or similar materials B27K; {fireproof paints C09D5/18; fireproofing materials C09K21/00; flame-resistant papers D21H5/0002; coverings or linings, e.g. for walls or ceilings, in general E04F13/00}; fireproof doors E06B5/16; {firebreak devices for pipes or the like passing through walls F16L5/04; protection of pipes by means of non-inflammable material F16L57/04}) · CPC title