Fire barrier layer and fire barrier film laminate

Abstract

A fire barrier laminate including: at least one non-fibrous fire barrier layer directly or indirectly coated onto at least one first polymeric flame propagation resistant film layer; at least one second film layer proximate to the non-fibrous fire barrier layer opposite the first polymeric flame propagation resistant film layer; at least one scrim layer disposed: (i) between the non-fibrous fire barrier layer and the first polymeric flame propagation resistant film layer; and/or (ii) between the non-fibrous fire barrier layer and the second film layer; and/or (iii) proximate to the first polymeric flame propagation resistant film layer opposite the non-fibrous fire barrier layer; and/or (iv) proximate to the second film layer opposite the non-fibrous fire barrier layer. Also, a method of making the fire barrier laminate.

1 . A fire barrier laminate comprising:
 at least one non-fibrous fire barrier layer comprising an inorganic platelet material, wherein the inorganic platelet material comprises at least one of vermiculite, mica, clay or talc;   at least one first polymeric flame propagation resistant film layer proximate to the non-fibrous fire barrier layer;   at least one second film layer proximate to the non-fibrous fire barrier layer opposite the first polymeric flame propagation resistant film layer; and   at least one scrim layer disposed: (i) between the non-fibrous fire barrier layer and the first polymeric flame propagation resistant film layer; and/or (ii) between the non-fibrous fire barrier layer and the second film layer; and/or (iii) proximate to the first polymeric flame propagation resistant film layer opposite the non-fibrous fire barrier layer; and/or (iv) proximate to the second film layer opposite the non-fibrous fire barrier layer;   wherein the non-fibrous fire barrier layer comprises from about 20% to less than 100% by weight of the inorganic platelet material, from greater than 0% to about 40% by weight of the organic binder and/or inorganic binder, and from 0% to about 50% of the functional filler.   
     
     
         2 . The fire barrier laminate of  claim 1 , wherein the fire barrier laminate further comprises at least one adhesive layer adhering the non-fibrous fire barrier layer to the first polymeric flame propagation resistant film layer. 
     
     
         3 . The fire barrier laminate of  claim 1 , wherein the fire barrier laminate further comprises at least one adhesive layer adhering the scrim layer to at least one of the non-fibrous fire barrier layer, the first polymeric flame propagation resistant film layer, or the second film layer. 
     
     
         4 . The fire barrier laminate of  claim 1 , wherein the non-fibrous fire barrier layer comprises vermiculite in an amount from about 20 to about 100 weight percent, based on the total weight of the non-fibrous fire barrier layer. 
     
     
         5 . The fire barrier laminate of  claim 1 , wherein the non-fibrous fire barrier layer comprises vermiculite in an amount of about 100 weight percent, based on the total weight of the non-fibrous fire barrier layer. 
     
     
         6 . The fire barrier laminate of  claim 1 , wherein the non-fibrous fire barrier layer comprises mica in an amount from about 20 to about 100 weight percent, based on the total weight of the non-fibrous fire barrier layer. 
     
     
         7 . The fire barrier laminate of  claim 1 , wherein the non-fibrous fire barrier layer comprises mica in an amount of about 100 weight percent, based on the total weight of the non-fibrous fire barrier layer. 
     
     
         8 . The fire barrier laminate of  claim 1 , wherein the fire barrier laminate has a basis weight of about 80 gsm to about 120 gsm. 
     
     
         9 . The fire barrier laminate of  claim 1 , wherein the fire barrier laminate has a basis weight of about 90 gsm to about 110 gsm. 
     
     
         10 . A thermal acoustic insulation system comprising at least one insulating layer disposed within a covering of an exteriorly facing fire barrier laminate as in  claim 1 , and an interiorly facing inboard cover film. 
     
     
         11 . The system of  claim 10 , wherein the interiorly facing cover film consists essentially of a polymer film.