C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
6/18, 18/643, 40
C08K 3/04 (2006.01) B32B 5/20 (2006.01)
Patent
CA 2014618
ABSTRACT The invention resides in a nonfibrous composition of matter for improving the fire resistance of flammable polymeric materials comprising a carbonaceous material having an LOI value of greater than 40, a thermal conductivity of less than 1 BTU(ft/hr)(ft2)(°F) [1.72 w/m2(K)], and which produces a char formation greater than 65 percent. Further embodiments include articles comprising a flammable polymeric material and a synergistic amount of the carbonaceous material in intimate contact therewith, and a fire barrier structure comprising a combination of a carbonaceous foam reinforced with carbonaceous fibers. Optionally the embodiments of the invention include an organosilicone polymer in an amount of from 0.5 to 90 percent by weight. 37,373C-F
Ezzell Bobby R.
Hall David M.
Ho Thoi H.
Mccullough Francis P. Jr.
Snelgrove R. Vernon
Smart & Biggar
The Dow Chemical Company
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