The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2015
Filed:
Nov. 12, 2013
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Llewellyn Bentley Richardson, III, Chesterfield, VA (US);
Dariusz Wlodzimierz Kawka, Midlothian, VA (US);
E I DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Abstract
A multilayer laminate for use as a flame barrier in an aircraft comprising (i) a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, (ii) 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., (iii) an inorganic refractory layer, and (iv) aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder wherein the inorganic refractory layer of (iii) comprises platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight.