Composite laminate for a thermal and acoustic insulation blanket

Patent metadata

Field	Value
Publication number	US-9238505-B2
Application number	US-201314081010-A
Country	US
Kind code	B2
Filing date	Nov 15, 2013
Priority date	Apr 21, 2009
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer wherein the refractory layer comprises platelets in an amount at least 85% by weight with a dry areal weight of 15 to 50 gsm and has a residual moisture content of no greater than 10 percent by weight.

First claim

What is claimed is:

1. A multilayer laminate for use as a flame barrier layer for an aircraft comprising in order
(i) a polymeric film layer having a temperature resistance of at least 200 degrees C. for at least 10 min,
(ii) an adhesive layer having an areal weight of from 2 to 40 gsm having an activation temperature of from 75 to 200 degrees C., and
(iii) an inorganic refractory layer having a dry areal weight of 15 to 50 gsm and residual moisture content of no greater than 10 percent by weight,
wherein the inorganic refractory layer of (iii) comprises platelets of vermiculite in an amount at least 95% by weight with the remaining ingredients of the layer being other inorganic platelets.

2. The laminate of claim 1 wherein the inorganic refractory layer is perforated.

3. The laminate of claim 1 wherein the polymeric film layer is a fluoropolymer, polyimide, polyetheretherketone, or polyetherketoneketone.

4. The laminate of claim 1 wherein the polymeric film layer is metalized on at least one surface.

5. The laminate of claim 1 wherein the adhesive layer contains up to 40 weight percent of a flame retardant ingredient.

6. The laminate of claim 1 wherein the adhesive bond between the inorganic refractory layer and the polymeric film is at least 0.25 lb./in.

7. The laminate of claim 1 wherein the inorganic refractory layer has a dry areal weight of from 20 to 35 gsm.

8. The laminate of claim 1 wherein the inorganic refractory layer has moisture content of no greater than 3%.

9. The laminate of claim 6 wherein the adhesive bond between the inorganic refractory layer and the polymeric film is at least 0.8 lb./in.

10. The laminate of claim 9 wherein the adhesive bond between the inorganic refractory layer and the polymeric film is at least 1.0 lb./in.

11. A flame barrier layer in a vehicle or building structure comprising the multilayer laminate of claim 1 .

12. A thermal acoustic blanket for an aircraft comprising the flame barrier layer of claim 11 .

13. A cargo liner for an aircraft comprising the flame barrier layer of claim 11 .

14. A multilayer laminate for use as a flame barrier layer for an aircraft comprising in order
(i) a polymeric film layer having a temperature resistance of at least 200 degrees C. for at least 10 min,
(ii) an adhesive layer having an areal weight of from 2 to 40 gsm having an activation temperature of from 75 to 200 degrees C., and
(iii) an inorganic refractory layer having a dry areal weight of 15 to 50 gsm and residual moisture content of no greater than 10 percent by weight,
wherein the inorganic refractory layer of (iii) consists essentially of 100 percent by weight of inorganic platelets of which vermiculite platelets are present in an amount of at least 95 weight %.

Assignees

• Du Pont

Inventors

• Richardson Iii Llewellyn Bentley
• Kawka Dariusz Wlodzimierz

Classifications

• B32B2264/107

  Ceramic · CPC title

• B32B19/045 Primary

  of synthetic resin · CPC title

• Y10T428/2495

  Thickness [relative or absolute] · CPC title

• Y10T428/24942

  including components having same physical characteristic in differing degree · CPC title

• Y10T428/24975

  No layer or component greater than 5 mils thick · CPC title