Abstract: A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one dialkyl phosphinic acid metal salt M1n+(R1R2PO2)n wherein M1 is a metal cation with valence n and R1, R2 are alkyl groups which may be the same or different; at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.

Abstract: There is provided herein a flame retarded polyamide composition comprising: (a) at least one polyamide; (b) a hydroquinone bisdiphenyl phosphate ester of the general formula (I): wherein R1, R2, R3 and R4 each independently is aryl, or arylalkyl each independently containing up to about 30 carbon atoms, optionally interrupted with heteroatoms, X is a divalent hydroquinone group, containing up to about 20 carbon atoms, and n has an average value of from about 1.0 to about 2.0; and, (c) at least one brominated flame retardant and optionally, melamine polyphosphate.

Abstract: A transparent composition comprising polycarbonate and a mixture of flame retardants, wherein the flame retardants are aryl phosphate ester of hydroquinone and tris(2,4,6-tribromophenoxy)-s-triazine.

Abstract: The invention provides a transparent polycarbonate composition comprising a polycarbonate resin and a mixture of flame retardants comprising (A) tris(2,4,6-tribromophenoxy)-s-triazine and (B) an aromatic sulphone sulphonate in the form of an alkali metal salt. The composition achieves a UL-94 flammability test rating of V-0 at a polycarbonate thickness equal to or less than 1.6 mm. Processes for preparing the composition are also disclosed.

Abstract: A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one metal hypophosphite salt Mq+ (H2PO2)q, wherein M indicates a metal cation with valence q; and at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the metal hypophosphite is less than 28% by weight based on the sum of all components in the composition, wherein the composition is antimony-free and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.

Abstract: The invention provides a process comprising reacting an epoxy novolac resin with monohydroxy aromatic compound, optionally in the presence of a poly-functional agent for linking together the epoxy novolac chains. The polymers thus obtained are modified, solid, novolac epoxy resins which are useful as stabilizers for flame retardants such as polystyrene-block-brominated polybutadiene-block-polystyrene.

Abstract: A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one dialkyl phosphinic acid metal salt M1n+(R1R2PO2)n wherein M1 is a metal cation with valence n and R1, R2 are alkyl groups which may be the same or different; at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.

Abstract: A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one dialkyl phosphinic acid metal salt M1n+(R1R2PO2)n wherein M1 is a metal cation with valence n and R1, R2 are alkyl groups which may be the same or different; at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.

Abstract: A composition comprising polyester and a mixture of flame retardants having at least the following two components: calcium hypophosphite and bromine-containing polymer.

Abstract: A transparent composition comprising polycarbonate and a mixture of flame retardants, wherein the flame retardants are aryl phosphate ester of hydroquinone and tris(2,4,6-tribromophenoxy)-s-triazine.

Abstract: There is provided herein a flame retarded polyamide composition comprising: (a) at least one polyamide; (b) a hydroquinone bisdiphenyl phosphate ester of the general formula (I): wherein R1, R2, R3 and R4 each independently is aryl, or arylalkyl each independently containing up to about 30 carbon atoms, optionally interrupted with heteroatoms, X is a divalent hydroquinone group, containing up to about 20 carbon atoms, and n has an average value of from about 1.0 to about 2.0; and, (c) at least one brominated flame retardant and optionally, melamine polyphosphate.

Abstract: The invention provides a transparent polycarbonate composition comprising a polycarbonate resin and a mixture of flame retardants comprising (A) tris(2,4,6-tribromophenoxy)-s-triazine and (B) an aromatic sulphone sulphonate in the form of an alkali metal salt. The composition achieves a UL-94 flammability test rating of V-0 at a polycarbonate thickness equal to or less than 1.6 mm. Processes for preparing the composition are also disclosed.

Abstract: There is provided herein a flame-retarded polyolefin polymer composition with reduced antimony trioxide content comprising: (a) at least one polyolefin polymer; (b) at least one brominated flame retardant (c) at least one antimony trioxide synergist and, (d) at least one calcium borate on an inorganic carrier. There is also provided a method of making said flame retarded polyolefin polymer composition and article thereof.

Abstract: There is provided herein an antimony trioxide-free flame-retarded styrenic thermoplastic polymer composition comprising: (a) at least one styrenic thermoplastic polymer; (b) at least one brominated flame retardant, (c) at least one metal phosphonate; and, (d) at least one antidripping agent. There is also provided a method of making said flame retarded styrenic thermoplastic polymer composition; and, an article comprising the styrenic thermoplastic polymer composition.