Fire retardant plasticized polyvinyl chloride compositions containing triphosphate plasticizer, aluminum hydroxide and antimony trioxide filler

Claim 2

A plasticized polyvinyl chloride composition consisting essentially of (a) 100 parts by weight of polyvinyl chloride, (b) 1 to 7 parts by weight of conventional stabilizers against decomposition, (c) 30 to 80 parts by weight of a plasticizer phosphoric acid ester with an alcohol moiety selected from the group consisting of alkyl having 2 to 10 carbon atoms, chlorine substituted alkyl having 2 to 10 carbon atoms, phenyl and lower alkyl substituted phenyl, (d) 50 to 90 parts by weight of aluminum hydroxide filler, and (e) 2 to 10 parts by weight of a flame-retarding substance selected from the group consisting of antimony trioxide and complex antimony compounds.

Claim 3

The plasticized polyvinyl chloride composition of claim 1 wherein up to 50% by weight of said phosphate acid ester plasticizer is replaced by chlorinated paraffin with a chlorine content of 30% to 60% based on the total possible chlorine substitution.

Claim 4

The plasticized polyvinyl chloride composition of claim 1 or 2 further characterized by a content of from 2 to 10 parts by weight of zinc borate as a flame retarding substance, where the total amount of flame retarding substances in the composition does not exceed 15 parts by weight.

Claim 5

The plasticized polyvinyl chloride composition of claim 1 or 2 further characterized by a content of from 2 to 10 parts by weight of tri-brominated-alkyl phosphates, where the alkyls have 2 to 5 carbon atoms and 2 to 4 bromine substituents, as a flame retarding substance, where the total amount of flame retarding substances in the composition does not exceed 15 parts by weight.

Claim 6

A plasticized polyvinyl chloride composition with flame-resistant properties consisting essentially of (a) for every 100 parts by weight of a vinyl chloride polymer selected from the group consisting of polyvinyl chloride, copolymers of vinyl chloride with up to 10% of monomers copolymerizable with vinyl chloride, and mixtures thereof, (b) from 1 to 7 parts by weight of conventional stabilizers against decomposition, (c) from 30 to 80 parts by weight of a plasticizer mixture of from 50% to 100% by weight of the mixture of at least one phosphoric acid triester having the formula ##STR4## wherein R is a member selected from the group consisting of alkyl having from 2 to 10 carbon atoms, chloroalkyl having from 2 to 10 carbon atoms, phenyl, C 1-4 alkylphenyl and di-C 1-4 -alkylphenyl, and from 0 to 50% by weight of the mixture of chlorinated paraffins containing from 30% to 60% chlorine content, based on the total possible chlorine substitution, (d) from 50 to 90 parts by weight of aluminum hydroxide filler, (e) from 2 to 10 parts by weight of a flame-retarding substance selected from the group consisting of antimony trioxide and complexes of antimony trioxide and silica, (f) from 0 to 10 parts by weight of conventional flame inhibitors selected from the group consisting of zinc boron salts and tri-polybromoalkyl phosphates with 2 to 5 carbon atoms in the alkyl, each with 2 to 4 bromine atoms, and mixtures thereof, where the total amount of flame inhibitors in (e) and (f) does not exceed 15 parts by weight, and (g) from 0 to 10 parts by weight of auxiliary substances selected from the group consisting of lubricants, pigments, light protecting agents, processing aids, conventional fillers and conventional plasticizers.

Claim 7

A plasticized polyvinyl chloride composition with flame-resistant properties consisting essentially of (a) for every 100 parts by weight of a vinyl chloride polymer selected from the group consisting of polyvinyl chloride, copolymers of vinyl chloride with up to 10% of monomers copolymerizable with vinyl chloride, and mixtures thereof, (b) from 1 to 7 parts by weight of conventional stabilizers against decomposition, (c) from 30 to 80 parts by weight of a plasticizer mixture of from 50% to 100% by weight of the mixture of at least one phosphoric acid triester having the formula ##STR4## wherein R is a member selected from the group consisting of alkyl having from 2 to 10 carbon atoms, chloroalkyl having from 2 to 10 carbon atoms, phenyl, C 1-4 alkylphenyl and di-C 1-4 -alkylphenyl, and from 0 to 50% by weight of the mixture of chlorinated paraffins containing from 30% to 60% chlorine content, based on the total possible chlorine substitution, (d) from 50 to 90 parts by weight of aluminum hydroxide filler, (e) from 2 to 10 parts by weight of a flame-retarding substance selected from the group consisting of antimony trioxide and complexes of antimony trioxide and silica, (f) from 0 to 10 parts by weight of conventional flame inhibitors selected from the group consisting of zinc boron salts and tri-polybromoalkyl phosphates with 2 to 5 carbon atoms in the alkyl, each with 2 to 4 bromine atoms, and mixtures thereof, where the total amount of flame inhibitors in (e) and (f) does not exceed 15 parts by weight, and (g) from 0 to 10 parts by weight of auxiliary substances selected from the group consisting of lubricants, pigments, light protecting agents, processing aids, conventional fillers and conventional plasticizers.