Combination of an envelope for a laminar structure providing adaptive thermal insulation and a heat protection shield

Patent metadata

Field	Value
Publication number	US-10092782-B2
Application number	US-201214415352-A
Country	US
Kind code	B2
Filing date	Jul 31, 2012
Priority date	Jul 31, 2012
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

The present invention relates to a combination of at least one envelope (20) for a laminar structure (100) providing adaptive thermal insulation, and a heat pro-tection shield (50) for the envelope (20), the envelope (20) enclosing at least one cavity (16) having included therein a gas generating agent (18) having an unactivated configuration and an activated configuration, the gas generating agent (18) being adapted to change from the unactivated configuration to the activated configuration, such as to increase a gas pressure inside the cavity (16), in response to an increase in temperature in the cavity (16), the envelope (20) being configured such that a volume of the envelope (20) increases in re-sponse to the increase in gas pressure inside the cavity (16), the heat protection shield (50) being assigned to the at least one envelope (20) such as to cover at least a heat exposed side of the envelope (20) with respect to a source of heat (700).

First claim

The invention claimed is:

1. Combination of at least one envelope for a laminar structure providing adaptive thermal insulation, and a heat protection shield for the envelope,
the envelope enclosing at least one cavity having included therein a gas generating agent having an unactivated configuration and an activated configuration,
the gas generating agent being adapted to change from the unactivated configuration to the activated configuration, such as to increase a gas pressure inside the cavity, in response to an increase in temperature in the cavity,
the envelope being configured such that a volume of the envelope increases in response to the increase in gas pressure inside the cavity,

the heat protection shield being assigned to the at least one envelope such as to cover at least a heat exposed side of the envelope with respect to a source of heat,
wherein the heat protection shield is bonded to an outer layer of the envelope within a laterally inner bonding portion, such that a lateral end portion of the heat protection shield projects from the outer layer of the envelope, at least in the activated configuration of the gas generating agent, in such a way as to provide for additional thermal protection by an air gap formed in between the lateral end portion of the heat protection shield and the outer layer of the envelope.

2. Combination according to claim 1 , wherein the heat protection shield has a configuration to essentially exclusively cover the at least one envelope to which it is assigned.

3. Combination according to claim 1 , wherein the heat protection shield has a first lateral extension measured by the area covered by the heat protection shield in a plane essentially orthogonal to the source of heat, and the at least one envelope to which it is assigned, has a second lateral extension measured by the area covered by the at least one envelope in the plane essentially orthogonal to the source of heat, the first lateral extension of the heat protection shield being essentially identical to the second lateral extension of the at least one envelope.

4. Combination according to claim 1 , wherein the heat protection shield is assigned to a single envelope.

5. Combination according to claim 1 , wherein the heat protection shield is positioned in between the source of heat and an outer side of the envelope directed towards the source of heat.

6. Combination according to claim 1 , wherein the heat protection shield has a configuration to provide for a temperature decrease at the heat exposed side of the envelope below 250° C.

7. Combination according to claim 1 , wherein the heat protection shield is made of a single material.

8. Combination according to claim 1 , wherein the heat protection shield is made of a composite material.

9. Combination according to claim 1 , wherein the heat protection shield comprises at least one material selected from the group consisting of: ceramics, aramides, carbon, glass, heat resistant polymers like PTFE, PPS, melamine, polyimide, or combinations thereof.

10. Combination according to claim 1 , wherein the heat protection shield is made up of at least one material selected from a woven fabric, non-woven fabric and film.

11. Combination according to claim 1 , wherein the heat protection shield has a thickness between 100 and 1600 μm.

12. Combination according to claim 1 , wherein the laterally inner bonding portion has an essentially dot shaped or circular shaped configuration.

13. Combination according to claim 1 , wherein the heat protection shield is provided at the heat exposed side of the envelope only.

14. Combination according to claim 1 , wherein the heat protection shield has a configuration to provide for a temperature decrease at the heat exposed side of the envelope below a temperature where envelope material starts to degrade.

15. Combination according to claim 14 , wherein the envelope is made of a composite material and the heat protection shield has a configuration to provide for a temperature decrease at the heat exposed side of the envelope below a lowest melting point of the envelope material.

16. Combination according to claim 14 , wherein the envelope includes a polymer material, particularly PET and/or a PU material, and the heat protection shield has a configuration to provide for a temperature decrease of the heat exposed side of the envelope below the melting point of the polymer material.

17. Combination according to claim 1 , wherein the heat protection shield comprises a polymer layer made of expanded PTFE, PTFE, polyimide, or combinations thereof.

18. Combination according to claim 17 , wherein the polymer layer has a thickness in the range of 50 to 70 μm.

19. Combination according to claim 1 , wherein the heat protection shield covers the envelope completely.

20. Laminar structure according to claim 19 , comprising a plurality of the envelopes and having the configuration of a quilted blanket, wherein the first layer and the second layer are coupled to each other via a stitching such as to form a plurality of pockets and wherein the envelopes are each inserted into a respective pocket.

21. Laminar structure according to claim 20 , wherein the heat protection shields are each inserted into a respective pocket such as to cover the heat exposed side of the respective envelope.

22. Laminar structure providing adaptive thermal insulation, comprising
a first layer,
a second layer,
at least one combination of an envelope and a heat protection shield according to claim 1 , the envelope provided in between the first layer and the second layer,
the first layer, the second layer and the cavity being arranged such that a distance between the first layer and the second layer increases in response to the increase in gas pressure inside the cavity,
wherein the heat protection shield is bonded to an outer layer of the envelope within a laterally inner bonding portion, such that a lateral end portion of the heat protection shield projects from the outer layer of the envelope, at least in the activated configuration of the gas generating agent, in such a way as to provide for additional thermal protection by an air gap formed in between the lateral end portion of the heat protection shield and the outer layer of the envelope.

23. Laminar structure according to claim 22 , comprising a plurality of heat protection shields and envelopes assigned to the heat protection shields, respectively, the envelopes and heat protection shields being arranged with distance (X) to each other in the lateral plane.

24. Fabric with a composite structure, the composite structure comprising a laminar structure providing adaptive thermal insulation according to claim 19 .

25. Fabric according to claim 24 , comprising a plurality of fabric layers arranged to each other, said plurality of fabric layers including an outer heat protective shell structure having an outer side and an inner side, the envelope being arranged on the inner side of the outer heat protective shell structure and the heat protection shield being arranged in between the outer heat protective shell structure and the envelope.

26. Combination of at least one envelope for a laminar structure providing adaptive thermal insulation, and a heat protection shield for the envelope, the envelope enclosing at least one cavity having included therein a gas generating agent having an unactivated config

Assignees

• Pigliucci Anatolio
• Hauer Stefan
• Gore W L & Ass Gmbh

Inventors

• Pigliucci Anatolio
• Hauer Stefan

Classifications

• B32B2307/3065

  Flame resistant or retardant, fire resistant or retardant · CPC title

• B32B2437/02

  Gloves, shoes · CPC title

• B32B2307/304

  Insulating · CPC title

• B32B5/022

  Non-woven fabric · CPC title

• B32B5/024

  Woven fabric · CPC title