Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-12-08
1978-12-12
Lieberman, Allan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 306R, 260 4249, 260 457R, 260 457PH, 260 4575B, 260 4575W, 526 1, 526 2, C08K 510, C08K 551, C08L 2706, C08L 9100
Patent
active
041295358
ABSTRACT:
Compositions for preparing fire retardant polyvinyl chloride films characterized by their unusual combination of low flame spread, low smoke density, reduced permeability for vapor transmission and good cold crack resistance are described. These film forming compositions comprise a blend of about 40-55% polyvinyl chloride, about 7-20% of chlorinated polyethylene, about 4-20% of a phosphate ester plasticizer, about 3-7% of a magnesium hydroxide filler, about 3-6% of zinc borate and about 3-6% of an antimony trioxide fire retardant with various lubricants, pigments and stabilizers being included where desired. The films derived from the above blend enjoy particular utility in preparing vapor barrier constructions for use in the building trade.
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Fennelly Richard P.
Lieberman Allan
Stauffer Chemical Company
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