Fire retardant product for use with electrical cables and the like

Claim 2

A fire protective insulating product adapted to be placed about conduits, electrical cables, and cable trays comprising a first layer containing an insulative inorganic non-combustible glass fiber blanket and a coating bonded to said first layer along the interface with said first layer, said coating being a composition comprising about 1.5 to about 20 weight percent of organically bound halogen, about 3 to above 75 weight percent of high temperature resistant noncombustible fibers, and about 5 to about 75 weight percent of a resinous binder selection from the group consisting of natural rubber and synthetic organic resinous binders, said inorganic non-combustible glass fiber blanket having a temperature resistance substantially less than the high temperature resistant non-combustible fibers of said coating, and said fire protective insulating product having a minimum thickness of said glass fiber blanket of approximately 1/2 inch.

Claim 3

The fire protective insulating material of claim 1 wherein said non-combustible fiber of said coating is asbestos.

Claim 4

The fire protective insulating material of claim 1 wherein the organically bound halogen is selected from the group consisting of halogenated hydrocarbons, tetrabromophthalic anhydride, tris (2,3 dibromopropyl) phosphate, tris beta chloroethyl phosphate and chlorinated biphenyl.

Claim 5

The fire protective insulating material of claim 1 wherein the binder is selected from the group consisting of polyvinyl acetate, GRS rubber, chlorinated rubber, natural rubber, methacrylate and acrylate resins and copolymers thereof, elastomeric polyurethanes, polyvinyl chloride, polyvinylidene chloride, polyvinyl chloride and polyvinylidene chloride copolymers, vinylacetate and vinyl chloride copolymers, polyvinylacetate and ethylene copolymers, epoxy resins, polystyrene and acrylonytrile-butadiene-styrene polymers.

Claim 6

The fire protective insulating material of claim 1 wherein said coating contains from about 0.5 to about 20 weight percent of an antimony containing compound.

Claim 7

The fire protective insulating product of claim 1 wherein said first layer contains a pressure sensitive adhesive on the surface opposite the surface having said coating contiguous thereto whereby said material may be used as a fire protective tape.

Claim 8

The fire protective insulating product of claim 1 in which said fiberglass blanket has a metal foil bonded thereto on the side opposite from said coating and adapted to be in contact with suh conduit, cables or cable tray.

Claim 9

A fire protective insulating product adapted to be placed about conduits, electrical cables, and cable trays, comprising a first blanket layer containing glass fibers and a coating bonded to said first layer along the interface with said first layer being a composition containing about 3 to about 75 weight percent of high temperature resistant noncombustible fibers, about 1.5 to about 20 weight percent of organically bound halogen selected from the group consisting of halogenated hydrocarbons, tetrabromophthalic anhydride, tris-B-chloroethyl phosphate, chlorinated biphenyl, chlorinated terphenyl and mixtures thereof, about 5 to about 75 weight percent of a resinous binder selected from the group consisting of 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, vinylacetate and vinyl chloride copolymers, polyvinylacetate and ethylene copolymers, water emulsified epoxy resins, polystyrene and acrylontrile-butadiene-styrene polymers, and about 1.0 to about 20 weight percent of an antimony containing compound, said fire protective insulating product having a minimum thickness of said blanket of approximately 1/2 inch.

Claim 10

A fire protective insulating product adapted to be placed about conduits, electrical cables, and cable trays, comprising a first blanket layer containing glass fibers and a coating bonded to said first layer along the interface with said first layer being a composition containing about 3 to about 75 weight percent of high temperature resistant noncombustible fibers, about 1.5 to about 20 weight percent of organically bound halogen selected from the group consisting of halogenated hydrocarbons, tetrabromophthalic anhydride, tris-B-chloroethyl phosphate, chlorinated biphenyl, chlorinated terphenyl and mixtures thereof, about 5 to about 75 weight percent of a resinous binder selected from the group consisting of 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, vinylacetate and vinyl chloride copolymers, polyvinylacetate and ethylene copolymers, water emulsified epoxy resins, polystyrene and acrylontrile-butadiene-styrene polymers, and about 1.0 to about 20 weight percent of an antimony containing compound, said fire protective insulating product having a minimum thickness of said blanket of approximately 1/2 inch.

Claim 11

A fire resistant construction comprising a conduit, electrical cable or cable tray covered by a first layer containing an inorganic non-combustible glass fiber blanket and a coating bonded to said first layer along the interface with said first layer being a composition comprising about 1.5 to about 20 weight percent of organically bound halogen, about 3 to about 75 weight percent high temperature resistant non-combustible figers and about 5 to 75 weight percent of a resinous binder selected from the group consisting of natural rubber and synthetic organic resinous binders, said inorganic non-combustible glass fibers having a temperature resistance substantially less than the high temperature resistant non-combustible fibers of said coating, and said fire resistance construction having a minimum thickness of said glass fiber blanket of approximately 1/2 inch.

Claim 12

A fire resistant construction comprising a conduit, electrical cable or cable tray covered by a first layer containing an inorganic non-combustible glass fiber blanket and a coating bonded to said first layer along the interface with said first layer being a composition comprising about 1.5 to about 20 weight percent of organically bound halogen, about 3 to about 75 weight percent high temperature resistant non-combustible figers and about 5 to 75 weight percent of a resinous binder selected from the group consisting of natural rubber and synthetic organic resinous binders, said inorganic non-combustible glass fibers having a temperature resistance substantially less than the high temperature resistant non-combustible fibers of said coating, and said fire resistance construction having a minimum thickness of said glass fiber blanket of approximately 1/2 inch.

Claim 13

The fire resistant construction of claim 9 wherein said high temperature resistant non-combustible fiber of said coating is asbestos.

Claim 14

The fire resistant construction of claim 9 wherein the organically bound halogen is selected from the group consisting of halogenated hydrocarbons, tetrabromphthalic anhydride, tris (2,3 dibromopropyl) phosphate, tris-B-chloroethyl phosphate and chlorinated biphenyl.

Claim 15

The fire resistant construction of claim 9 wherein the binder is selected from the group consisting of polyvinyl acetate, GRS rubber, chlorinated rubber, natural rubber, methacrylate and acrylate resins and copolymers thereof, elastomeric polyurethanes, polyvinyl chloride, polyvinylidene chloride, polyvinyl chloride and polyvinylidene chloride copolymers, vinylacetate and vinyl chloride copolymers, polyvinylacetate and ethylene copolymers, epoxy resins, polystyrene and acrylonytrile-butadiene-styrene polymers.

Claim 16

The fire resistant construction of claim 9 wherein said coating contains from about 0.5 to about 20 weight percent of an antimony containing compound.

Claim 17

The fire protective insulating construction of claim 9 in which an aluminum foil is positioned about said conduit, cable, or cable tray, spacers of fiberglass mat covered with aluminum foil are positioned adjacent said foil, and said inorganic non-combustible glass fiber blanket has a metal foil bonded thereto on the side opposite said coating, whereby an air space is provided between said aluminum foil positioned about conduit, cable or cable tray and said metal foil bonded to said glass fiber blanket.

Claim 18

A fire resistnat construction comprising a conduit, electrical cable or cable tray covered by a first blanket layer containing glass fibers and a coating bonded to said first layer along the interface with said first layer being a composition containing about 3 to about 75 weight percent of asbestos fibers, about 1.5 to about 20 weight percent of organically bound halogen selected from the group consisting of halogenated hydrocarbons, tetrabromophthalic anhydride, tris (2,3 dibromopropyl) phosphate, tris-B-chloroethyl phosphate, chlorindated biphenyl, chlorinated terphenyl and mixture thereof, about 5 to 75 weight percent of a suitable binder selected from the group consisting of polyvinyl acetate emulsions, GRS rubber, natural rubber latex, methacrylate and acrylate resins and copolymers thereof, elastomeric polyurethanes, polyvinyl chloride, polyvinylidene chloride, polyvinyl chloride and polyvinlidene chloride copolymers, vinylacetate and vinylchloride copolymers, polyvinylacetate and ethylene copolymers, water emulsified epoxy resins, polystyrene and acrylonitrile-butadiene-styrene polymers, and about 1.0 to about 20 weight percent of an antimony containing compound, said blanket containing glass fibers having a temperature resistance substantially less than the temperature of said asbestos fibers of said coating, and said fire resistant construction having a minimum thickness of said blanket of approximately 1/2 inch.

Claim 19

A fire resistnat construction comprising a conduit, electrical cable or cable tray covered by a first blanket layer containing glass fibers and a coating bonded to said first layer along the interface with said first layer being a composition containing about 3 to about 75 weight percent of asbestos fibers, about 1.5 to about 20 weight percent of organically bound halogen selected from the group consisting of halogenated hydrocarbons, tetrabromophthalic anhydride, tris (2,3 dibromopropyl) phosphate, tris-B-chloroethyl phosphate, chlorindated biphenyl, chlorinated terphenyl and mixture thereof, about 5 to 75 weight percent of a suitable binder selected from the group consisting of polyvinyl acetate emulsions, GRS rubber, natural rubber latex, methacrylate and acrylate resins and copolymers thereof, elastomeric polyurethanes, polyvinyl chloride, polyvinylidene chloride, polyvinyl chloride and polyvinlidene chloride copolymers, vinylacetate and vinylchloride copolymers, polyvinylacetate and ethylene copolymers, water emulsified epoxy resins, polystyrene and acrylonitrile-butadiene-styrene polymers, and about 1.0 to about 20 weight percent of an antimony containing compound, said blanket containing glass fibers having a temperature resistance substantially less than the temperature of said asbestos fibers of said coating, and said fire resistant construction having a minimum thickness of said blanket of approximately 1/2 inch.

Claim 20

A fire protective insulating product comprising a first layer containing an insulative inorganic molded fiberglass part and a coating bonded to said molded fiberglass part along the interface therewith being a composition comprising about 1.5 to about 20 weight percent of organically bound halogen, about 3 to about 75 weight percent of high temperature resistant non-combustible fibers, and about 5 to about 75 weight percent of a resinous binder selected from the group consisting of natural rubber and synthetic organic resinous binders, said fiberglass of said molded fiberglass part having a temperature resistance substantially less than the high temperature resistance substantially less than the high temperature resistant non-combustible fibers of said coating, and said fire protective insulating product having a minimum thickness of fiberglass of approximately 1/2 inch.

Claim 21

A fire protective insulating product comprising a first layer containing an insulative inorganic molded fiberglass part and a coating bonded to said molded fiberglass part along the interface therewith being a composition comprising about 1.5 to about 20 weight percent of organically bound halogen, about 3 to about 75 weight percent of high temperature resistant non-combustible fibers, and about 5 to about 75 weight percent of a resinous binder selected from the group consisting of natural rubber and synthetic organic resinous binders, said fiberglass of said molded fiberglass part having a temperature resistance substantially less than the high temperature resistance substantially less than the high temperature resistant non-combustible fibers of said coating, and said fire protective insulating product having a minimum thickness of fiberglass of approximately 1/2 inch.