Flame retardant low smoke poly(vinyl chloride) thermoplastic compositions

Claim 2

A flame retardant smoke-suppressed thermoplastic composition comprising the below-listed materials, amounts being expressed as parts per hundred of the sum of poly(vinyl chloride) and chlorinated polyethylene resins in the composition: poly(vinyl chloride), in an amount from about 60 to about 90 parts per hundred of resin; chlorinated polyethylene, in an amount from about 40 to about 10 parts per hundred of resin; tribasic lead sulfate, in an amount from about 6 to about 12 parts per hundred of resin; a zinc molybdate, in an amount from about 10 to about 30 parts per hundred of resin; alumina trihydrate, in an amount from about 10 to about 30 parts per hundred of resin; a brominated aromatic ester plasticizer, in an amount from about 10 to about 30 parts per hundred of resin; at least one additional plasticizer besides said brominated aromatic ester, said at least one additional plasticizer being efficacious in PVC-based plastic materials; and at least one lubricant efficacious in PVC-based plastic materials.

Claim 3

The composition of claim 1 further comprising at least one antioxidant efficacious in PVC-based plastic materials, the amount of said at least one antioxidant being from about 0.15 to about 0.6 parts per hundred of resin.

Claim 4

The composition of claim 2 wherein said at least one antioxidant comprises 4,4',4"-(1-methyl-1-propanyl-3-ylidene) tris(2-(1,1-dimethylethyl))-5-methyl phenol.

Claim 5

The composition of claim 1 further comprising antimony trioxide in an amount from about 2 to about 8 parts per hundred of resin.

Claim 6

The composition of claim 1 wherein said at least one additional plasticizer is selected from the group consisting of dioctyl sebacate, n-octyl-n-decyl trimellitate, and isodecyl diphenyl phosphate.

Claim 7

The composition of claim 1 wherein said at least one lubricant is selected from the group consisting of stearic acid, dibasic lead stearate, and paraffin waxes.

Claim 8

The composition of claim 1 further comprising at least one filler suitable for use in PVC-based plastic materials, the total amount of said fillers in said thermoplastic composition being from about 10 to about 30 parts per hundred of resin.

Claim 9

A flame retardant smoke-suppressed thermoplastic composition comprising the below-listed materials, amounts being expressed as parts per hundred of the sum of poly(vinyl chloride) and chlorinated poly(vinyl chloride) resins in the composition: poly(vinyl chloride), in an amount from about 60 to about 90 parts per hundred resin; chlorinated poly(vinyl chloride), in an amount from about 40 to about 10 parts per hundred of resin; a plasticizer which is a terpolymer of acrylic acid, ethylene, and vinyl acetate, in an amount from about 10 to about 40 parts per hundred of resin; tribasic lead sulfate, in an amount from about 6 to about 12 parts per hundred of resin; ammonium octamolybdate, in an amount from about 10 to about 30 parts per hundred of resin; alumina trihydrate, in an amount from about 10 to about 50 parts per hundred of resin; a brominated aromatic ester plasticizer, in an amount from about 10 to about 30 parts per hundred of resin; at least one additional plasticizer besides said brominated aromatic ester and said terpolymer of acrylic acid, ethylene, and vinyl acetate, said at least one additional plasticizer being efficacious in PVC-based plastic materials; and at least one lubricant efficacious in PVC-based plastic materials.

Claim 10

A flame retardant smoke-suppressed thermoplastic composition comprising the below-listed materials, amounts being expressed as parts per hundred of the sum of poly(vinyl chloride) and chlorinated poly(vinyl chloride) resins in the composition: poly(vinyl chloride), in an amount from about 60 to about 90 parts per hundred resin; chlorinated poly(vinyl chloride), in an amount from about 40 to about 10 parts per hundred of resin; a plasticizer which is a terpolymer of acrylic acid, ethylene, and vinyl acetate, in an amount from about 10 to about 40 parts per hundred of resin; tribasic lead sulfate, in an amount from about 6 to about 12 parts per hundred of resin; ammonium octamolybdate, in an amount from about 10 to about 30 parts per hundred of resin; alumina trihydrate, in an amount from about 10 to about 50 parts per hundred of resin; a brominated aromatic ester plasticizer, in an amount from about 10 to about 30 parts per hundred of resin; at least one additional plasticizer besides said brominated aromatic ester and said terpolymer of acrylic acid, ethylene, and vinyl acetate, said at least one additional plasticizer being efficacious in PVC-based plastic materials; and at least one lubricant efficacious in PVC-based plastic materials.

Claim 11

The composition of claim 8, further comprising: at least one antioxidant efficacious in PVC-based material, in an amount from about 0.15 to about 0.15 to about 0.6 parts per hundred of resin.

Claim 12

The composition of claim 9 wherein said at least one antioxidant comprises 4,4', 4"-(1-methyl-1-propanyl-3-ylidene) tris(2-(1,1-dimethylethyl))-5-methyl phenol.

Claim 13

The composition of claim 8 further comprising antimony trioxide in an amount from about 2 to about 8 parts per hundred of resin.

Claim 14

The composition of claim 8 wherein said additional plasticizer is selected from the group consisting of dioctyl sebacate, n-octyl-n-decyl trimellitate, and isodecyl diphenyl phosphate.

Claim 15

The composition of claim 8 wherein said lubricant is selected from the group consisting of stearic acid, dibasic lead stearate, and paraffin waxes.

Claim 16

An insulated wire comprising: at least one electrically conductive wire and an insulation about said at least one wire, said insulation comprising the thermoplastic composition of claim 1.

Claim 17

A jacketed electrical cable comprising: at least one electrical cable and cable jacketing about said at least one cable, said cable jacketing comprising the thermoplastic composition of claim 8.