Dressler, Goldsmith, Shore, Sutker & Milnamow, Ltd.
Fire block sheet and wrapper
 A thermally insulative fire block sheet having an elastomeric layer is provided which has a surface flammability flame spread index of zero at 20 minutes of exposure in accordance with ASTM E-162 and which is capable, in a thickness of 1/16 inch, of blocking a flame of 1900.degree. F. for more than an hour. The sheet comprises at least two layers. One layer, facing the direction of the expected flame, is a silicone foam rubber comprising the reaction product of a vinylterminated polysiloxane containing --Si(CH.sub.3).sub.2 O-- units and an organohydrogensiloxane polymer containing Si(H)(CH.sub.3)O-- units. The silicone foam rubber also contains alumina trihydrate. The other layer is an adherent flame resistant support layer for said foam, preferably a glass cloth layer. 
Bisco Products Inc.
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Y10T Y10T Y10T B32B B32B Y10T B32B B32B Y10T Y10T Y10T B32B B32B B32B B32B B32B B32B B32B Y10T Y10S B32B B32B Y10T B32B B32B
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Jeffrey E. Kenneth S. James S. Malinda
Julis Hoffman Anderson Mercado