Flame retardant rubber flooring composition

Claim 2

A flame retardant synthetic rubber composition for flooring material having a syntehtic rubber hot emulsion polymer combined with a high bound styrene resin, compounding agents, curing agents, and pigments, the improvement to the composition comprising, the flame retardant materials of antimony oxide, a chlorinated paraffin hydrocarbon, hydrated alumina, asbestos and a high flash point naphthenic oil, where about 6 to 10 parts of antimony oxide, about 25 to 40 parts of chlorinated paraffin hydrocarbon, about 150 to 450 parts of hydrated alumina, about 50 parts of asbestos, and about 10 to 40 parts of naphthenic oil are present per 100 parts of said rubber polymer for providing a flame spread index for the composition of less than or equal to 25.

Claim 3

A flooring material as in claim 1 where the rubber polymer is SBR hot emulsion polymer.

Claim 4

A flame retardant white flooring composition consisting essentially of SBR hot emulsion polymer, hard clay, whiting, titanium dioxide, a high bound styrene resin, zinc oxide, stearic acid, antimony oxide, a chlorinated paraffin hydrocarbon, curing agents, DPG, a high flash naphthenic oil, asbestos and hydrated alumina, and where about 6 to 10 parts of antimony oxide, about 25 to 40 parts of chlorinated paraffin hydrocarbon, about 150 to 450 parts of hydrated alumina, about 50 parts of asbestos, and about 10 to 40 parts of naphthenic oil are present per 100 parts of said SBR polymer for providing a flame spread index for the composition of less than or equal to 25.

Claim 5

A flame retardant white flooring composition consisting essentially of SBR hot emulsion polymer, hard clay, whiting, titanium dioxide, a high bound styrene resin, zinc oxide, stearic acid, antimony oxide, a chlorinated paraffin hydrocarbon, curing agents, DPG, a high flash naphthenic oil, asbestos and hydrated alumina, and where about 6 to 10 parts of antimony oxide, about 25 to 40 parts of chlorinated paraffin hydrocarbon, about 150 to 450 parts of hydrated alumina, about 50 parts of asbestos, and about 10 to 40 parts of naphthenic oil are present per 100 parts of said SBR polymer for providing a flame spread index for the composition of less than or equal to 25.

Claim 6

A composition as in claim 3 and wherein the compounding ingredients are present in about the following quantities: ______________________________________ Hard Clay 100 parts Whiting 40 Titanium Dioxide 24 A High Bound Styrene Resin 11 Zinc Oxide 2 Antimony Oxide 6 Stearic Acid 1 A Chlorinated Paraffin Hydrocarbon 32 Sulfur 9 Curing Agents (MBTS) 2 DPG .75 A High Flash Naphthenic Oil 25 Asbestos 50 Hydrated Alumina 150 per 100 parts of synthetic rubber ______________________________________

Claim 7

A flame retardant white flooring composition as in claim 3 where a 70% chlorinated paraffin hydrocarbon having an average molecular weight of 1200 is present in the composition.

Claim 8

A flooring material as in claim 3 where the asbestos is present in pelletized form and the hydrated alumina is Al 2 O 3 .3H2O in the three micron size range.