IP Library Granted Patent US 9,676,168
Granted Patent B2
US 9,676,168 · App. 13/802,537 · Granted Jun 13, 2017

Fire barrier layer and fire barrier film laminate

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Quick Facts
Patent No.
US 9,676,168
App. No.
13/802,537
Granted
Jun 13, 2017
Kind
B2
Abstract

A fire barrier laminate is provided for use in thermal and acoustical insulation systems, such as, but not limited to, those used in commercial aircraft.

Claims (45)

1. A fire barrier laminate that passes the flame propagation and burn-through resistance test protocols of 14 CFR §§25.856(a) and (b), Appendix F, Parts VI and VII comprising:

a. a first film layer;

b. a support layer on top of the first film layer;

c. a non-fibrous fire barrier layer on top of the support layer; and

d. optionally, a second film layer on top of the non-fibrous fire barrier layer,

e. wherein the non-fibrous fire barrier layer comprises at least one inorganic pigment material; and

f. wherein the at least one inorganic pigment material is silica, alumina, borosilicate or mica; and

g. wherein the mica is natural or synthetic, including, without limitation, muscovite, phlogopite, vermiculite, suzorite, biotite, and may include synthetic micas such as fluorophlogopite.

2. The fire barrier laminate of claim 1 , wherein the first film layer is on top of a scrim.

3. The fire barrier laminate of any of claim 1 , wherein the non-fibrous fire barrier layer comprises an adhesive in addition to the at least one inorganic pigment material.

4. The fire barrier laminate of claim 3 , wherein the at least one inorganic pigment material is a metal oxide-coated inorganic platelet material.

5. The fire barrier laminate of claim 4 , wherein the at least one inorganic pigment material is metal oxide-coated mica platelets.

6. The fire barrier laminate of claim 4 , wherein the metal oxide coating is selected from the group consisting of titanium oxide, iron oxide, chromium oxide, tin oxide, silicon oxide, cobalt oxide, antimony oxide and any combination thereof.

7. The fire barrier laminate of claim 3 , wherein the adhesive is a pressure sensitive adhesive.

8. The fire barrier laminate of claim 7 , wherein the pressure sensitive adhesive is a silicone pressure sensitive adhesive.

9. The fire barrier laminate of claim 1 , wherein there is an adhesive layer between the non-fibrous fire barrier layer and the second film layer.

10. The fire barrier laminate of claim 9 , wherein the adhesive layer is formed using a formulation comprising an adhesive and a solvent.

11. The fire barrier laminate of claim 9 , wherein the adhesive is a pressure sensitive adhesive.

12. The fire barrier laminate of claim 11 , wherein the pressure sensitive adhesive is a silicone pressure sensitive adhesive.

13. A fire barrier laminate that passes the flame propagation and burn-through resistance test protocols of 14 CFR §§25.856(a) and (b), Appendix F, Parts VI and VII comprising:

a. a first film layer;

b. a non-fibrous fire barrier layer proximate to the first film layer, the non-fibrous fire barrier layer comprising at least one inorganic pigment and an adhesive;

c. optionally, a support layer between the first film layer and the non-fibrous fire barrier layer; and

d. optionally, a second film layer on top of the non-fibrous fire barrier layer.

14. The fire barrier laminate of claim 13 , wherein the at least one inorganic pigment material has a diameter of from about 1 micron to about 300 microns.

15. The fire barrier laminate of claim 13 , wherein the at least one inorganic pigment material is a metal oxide-coated inorganic platelet material.

16. The fire barrier laminate of claim 15 , wherein the at least one inorganic pigment material is metal oxide-coated mica platelets.

17. The fire barrier laminate of claim 15 , wherein the metal oxide coating is selected from the group consisting of titanium oxide, iron oxide, chromium oxide, tin oxide, silicon oxide, cobalt oxide, antimony oxide and any combination thereof.

18. A fire barrier laminate that passes the flame propagation and burn-through resistance test protocols of 14 CFR §§25.856(a) and (b), Appendix F, Parts VI and VII comprising:

a. a first film layer;

b. a support layer between the first film layer and a non-fibrous fire barrier layer;

c. a non-fibrous fire barrier layer coated on the first film later, the non-fibrous fire barrier layer comprising at least one inorganic platelet, a binder and one or more functional fillers;

d. a second film layer on top of the support layer;

e. wherein the at least one inorganic platelet is mica; and

f. wherein the mica is natural or synthetic, including, without limitation, muscovite, phlogopite, vermiculite, suzorite, biotite, and may include synthetic micas such as fluorophlogopite; and

g. wherein the binder is one or a combination of adhesives, colloidal dispersions of alumina, silica, zirconia, and mixtures thereof or acrylic latex, (meth)acrylic latex, phenolic resins, copolymers of styrene and butadiene, vinylpyridine, acrylonitrile, copolymers of acrylonitrile and styrene, vinyl chloride, polyurethane, copolymers of vinyl acetate and ethylene, polyamides, silicones, unsaturated polyesters, epoxy resins, polyvinyl esters (such as polyvinylacetate or polyvinylbutyrate latexes) or similar materials;

h. wherein the one or more functional filler(s) are selected from but are not be limited to, carbon fibers carbon nanotubes, non-platelet clays (such as attapulgite, kyanite, palygorskite, silimanite, or andalucite), fumed silica, boron nitride, cordierite and the like, finely divided metal oxides, which may comprise at least one of pyrogenic silicas, arc silicas, low-alkali precipitated silicas, fumed silica, silicon dioxide aerogels, aluminum oxides, titania, calcia, magnesia, potassia, and mixtures thereof.

19. A fire barrier laminate that passes the flame propagation and burn-through resistance test protocols of 14 CFR §§25.856(a) and (b), Appendix F, Parts VI and VII comprising:

a. a first film layer;

b. a support layer between the first film layer and a non-fibrous fire barrier layer;

c. a non-fibrous fire barrier layer coated on the first film layer, the non-fibrous fire barrier layer comprising at least one inorganic platelet and an adhesive; and

d. a second film layer on top of the support layer;

e. wherein the at least one inorganic platelet is silica, alumina, borosilicate and mica; and wherein the mica is natural or synthetic, including, without limitation, muscovite, phlogopite, vermiculite, suzorite, biotite, and may include synthetic micas such as fluorophlogopite; and

f. wherein the at least one inorganic platelet is coated with a metal oxide chosen from the group consisting of titanium oxide, iron oxide, chromium oxide, tin oxide, silicon oxide, cobalt oxide, antimony oxide or any combination thereof; and

g. wherein the total weight of the fire barrier laminate does not exceed 120 grams per square meter.

Assignments (7)
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Oct 2, 2024
From: LYDALL PERFORMANCE MATERIALS (US), INC.; LYDALL INC.; REFRACTORY SPECIALTIES, INCORPORATED; SOUTHERN FELT COMPANY, INC.; UNIFRAX I LLC; STELLAR MATERIALS
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS COLLATERAL AGENT
Reel/Frame 069091/0735 →
SECOND LIEN TRADEMARK SECURITY AGREEMENT Recorded Oct 2, 2024
From: LYDALL PERFORMANCE MATERIALS (US), INC.; LYDALL INC.; REFRACTORY SPECIALTIES, INCORPORATED; SOUTHERN FELT COMPANY, INC.; UNIFRAX I LLC; STELLAR MATERIALS
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS SECOND LIEN NOTES COLLATERAL AGENT
Reel/Frame 069091/0923 →
RELEASE OF FIRST LIEN SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 47909/0937 Recorded Oct 2, 2024
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: UNIFRAX I LLC
Reel/Frame 069103/0582 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 49014/0755 Recorded Oct 4, 2021
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: UNIFRAX I LLC
Reel/Frame 057710/0669 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Dec 14, 2018
From: UNIFRAX I LLC
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 049014/0755 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Dec 14, 2018
From: UNIFRAX I LLC
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 047909/0937 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2013
From: CONTZEN, BERNARD R; FARIA, PHILLIP; JUNG, GENE; SHANK, GARY; MILLER, KENNETH B; RIOUX, ROBERT
To: UNIFRAX I LLC; LAMART CORPORATION
Reel/Frame 030577/0808 →