A process of forming a resveratrol-based flame retardant small molecule with a phosphonate/phosphinate molecule that includes a chloride group and a terminal functional group.

A process of forming a resveratrol-based flame retardant small molecule with a phosphonate/phosphinate molecule that includes a chloride group and a terminal functional group.

A flame retardant resin composition includes a polyolefin resin, a phosphate compound, and an organic phosphorus compound. The phosphate compound includes a salt of a phosphoric acid represented by the following formula:

##STR00001##

where m represents an integer of 1 to 100, and an amine compound containing an amino group in a molecule, and the organic phosphoric compound (C) is represented by the following formula:

##STR00002##

where X.sup.1 and X.sup.2 are the same or different, and are represented by the following formula:

ALAr.sub.n  (3),

where AL is a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar is a phenyl group, a naphthyl group or an anthryl group which may include a substituted group, and bonds with an optional carbon atom in the AL, and n indicates an integer of 1 to 3.

A flame retardant resin composition includes a polyolefin resin, a phosphate compound, and an organic phosphorus compound. The phosphate compound includes a salt of a phosphoric acid represented by the following formula:

##STR00001##

where m represents an integer of 1 to 100, and an amine compound containing an amino group in a molecule, and the organic phosphoric compound (C) is represented by the following formula:

##STR00002##

where X.sup.1 and X.sup.2 are the same or different, and are represented by the following formula:

ALAr.sub.n  (3),

where AL is a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar is a phenyl group, a naphthyl group or an anthryl group which may include a substituted group, and bonds with an optional carbon atom in the AL, and n indicates an integer of 1 to 3.

A polyester film comprising a polymeric phosphonate flame retardant in an amount of from about 1.0 to about 25.0 wt % by total weight of the film and further comprising at least one metal cation selected from the group consisting of Group I and Group II metal cations.

A polyester film comprising a polymeric phosphonate flame retardant in an amount of from about 1.0 to about 25.0 wt % by total weight of the film and further comprising at least one metal cation selected from the group consisting of Group I and Group II metal cations.

Polyolefin hollow articles prepared via a rotomolding process are provided flame retardancy by incorporating therein a phosphonate ester, an N-alkoxy hindered amine and melamine cyanurate.

Polyolefin hollow articles prepared via a rotomolding process are provided flame retardancy by incorporating therein a phosphonate ester, an N-alkoxy hindered amine and melamine cyanurate.

Polyolefin hollow articles prepared via a rotomolding process are provided flame retardancy by incorporating therein a phosphonate ester, an N-alkoxy hindered amine and melamine cyanurate.

Disclosed is a phosphorus-containing compound capable of serving as a flame retardant to be used in conjunction with other ingredients to make resin compositions, useful for fabricating such as a prepreg, a resin film, a resin film with copper foil, a laminate or a printed circuit board, having improved one or more properties including glass transition temperature, coefficient of thermal expansion, thermal resistance, flame retardancy, dielectric constant, and dissipation factor. In addition, a method of preparing the phosphorus-containing compound and a resin composition comprising the phosphorus-containing compound are also disclosed.