Fire protective composition for use with electrical cables

Claim 1

A SELF-EXTINGUISHING FIRE PROTECTIVE COMPOSITION FOR THE COATING OF ELECTRICAL CABLES CONTAINING FROM ABOUT 45 TO ABOUT 80 WEIGHT PERCENT TOTAL SOLIDS, BASED ON THE TOTAL WEIGHT OF SAID COMPOSITION, SAID COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 4 TO ABOUT 45 WEIGHT PERCET EMULSION SOLIDS OF A WATER BASED RESINOUS EMULSION SELECTED FROM THE GROUP CONSISTING OG POLYVINYL ACETATE EMULSION GRS RUBBER, NATURAL RUBBER LATEX METHACRYLATE AND ACRYLATE RESINS AND COPOLYMERS THEREOF, ELASTOMERIC POLYURETHANES, POLYVINYL CHLORIDE, POLYVINYLIDENE CHLORIDE, POLYVINYL CHLORIDE AND POLYVINYLIDENE CHLORIDE COPOLYMERS, VINYL ACETATE AND VINYL CHLORIDE COPOLYMERS, POLYVINYL ACETATE AND ETHYLENE COPOLYMER, WATER EMULSIFIED EPOXY RESINS, POLYSTYRENE AND ACRYLONITRILE-BUTADIENE-STYRENE POLYMERS SAID RESINOUS EMULSION BINDING SAID COMPOSITION UPON APPLICATION TO ELECTRICAL CABLES IN A FLEXIBLE COHESIVE STRUCTURALLY INTREGAL PROTECTIVE COATING, ABOUT 1 TO ABOUT 15 WEIGHT PERCENT OF A COMPOUND CONTAINING ORGANICALLY BOUND HALOGEN SELECTED FROM THE GROUP CONSISTING OF HALOGENATED HYDROCARBONS, TETRABROMOPHTHALIC ANHYDRIDE, TRIS (2,3-DIBROMOPROPYL) PHOSPHATE, TRISBETACHLOROETHYL PHOSPHATE ANS CHLORINATED BIPHENYL TO IMPART FLAME RETARDING PROPERTIES TO SAID COMPOSITION, ABOUT 5 TO ABOUT 50 WEIGHT PERCENT OF NON COMBUSTILE FIBERS, SAID FIBERS REMAINING IN PLACE ABOUT AN ELECTRICAL CABLE DURING A FIRE AFTER SAID BINDER DECOMPOSES AND REINFORCING AND MAINTAINING THE PHYSICAL INTEGRITY OF A PROTECTIVE COATING FORMED FROM SAID COMPOSITION UPON APPLICATION TO ELECTRICAL CABLES, ABOUT 1 TO ABOUT 20 WEIGHT PERCENT OF A PLASTICIZER FOR SAID WATER BASED RESINOUS EMULSION, AND FROM ABOUT 0.5 TO ABOUT 15 WEIGHT PERCENT OF AN ANITIMONY OXIDE CONTAINING COMPOUND SAID COMPOSITION FORMING A COHERENT STRUCTURALLY INTEGRAL FIBROUS REINFORCE SELF-EXTINGUISHING FIRE PROTECTIVE COATING ABOUT THE SURFACE OF ELECTRICAL CABLES AFTER APPLICATION TO THE SAME TO PREVENT THE SPREAD OF A FIRE FROM ITS PLACE OF ORGIN WITHOUT AFFECTING ADVERSELY THE AMPACITY OF SUCH COATED CABLES.