The invention relates to a phosphorous containing monomer and a process thereof. Furthermore, the invention relates to a phosphorous containing polymer comprising said monomer and a production process thereof. The phosphorous containing polymer of the invention is useful as flame-retardant polymer. Additionally, the invention relates to a thermoplastic polymer composition comprising said phosphorous containing polymer and optionally a further thermoplastic polymer. The thermoplastic polymer composition can be used for the production of molded articles or yarns having excellent flame-retardant properties in order to ensure adequate fire protection.

Method for manufacturing oxaphosphaphenantrene oxide acrylate monomers by Phospha-Michael addition to acrylates, which comprises reacting oxaphosphaphenantrene oxide with an α,ω-alkyl diol diacrylate in a molar ratio of 1:1.5 to 1:10 in the presence of a base and a polymerisation inhibitor at temperatures from 70 to 120° C. and unreacted α,ω-alkyl diol diacrylate is separated off, monomers obtainable with the method and their use for manufacturing flame retardant thermoplastic (meth)acrylate polymers and method for manufacturing flame retardant thermoplastic (meth)acrylate polymers with the monomers, polymers obtainable in this way and their use for manufacturing transparent films and panels.

A composition containing a polymer material and a phosphorus-containing flame retardant based on an aminomethyl bisphosphonate, a process for the production of the composition, and the use of the flame retardant as well as selected structures of the flame retardant are disclosed.

Compounds containing polymer material and a phosphorous flame protection agent on the basis of an aminomethyl bisphosphonate, a method for manufacturing the compound, the use of the flame retardant, and selected structures of the flame retardant are disclosed.

The invention relates to a thermoplastic polymer composition, in particular to a polyamide composition, having improved flame-retardant properties by maintaining its good physical properties. Furthermore, the invention relates to a method of preparing said thermoplastic polymer composition and to shaped articles, in particular fibers, made of the thermoplastic polymer composition of the invention and that have excellent properties in order to ensure adequate fire protection.

Disclosed herein are compounds of formulas (I) and (II), Wherein R.sub.1, R.sub.2, R.sub.3 and (1) are as described herein. Methods of making compounds of formulas (I) and (II), curable compositions containing them and cured compositions containing them are also described. The compounds of formulas (I) and II are curing agents, fire retardants or both. ##STR00001##

A phosphorus-containing silane compound has a structure of SiR.sub.1(R.sub.2).sub.n(R.sub.3).sub.3-n, wherein R.sub.1 is a phenyl group, R.sub.2 is a vinyl group, R.sub.3 each independently is a structure of Formula (I) or Formula (II), and n is 1 or 2. Moreover, a method of making the phosphorus-containing silane compound, a resin composition including the phosphorus-containing silane compound and a resin additive and an article made from the resin composition are described. The article includes a prepreg, a resin film, a laminate or a printed circuit board, wherein one or more properties including Z-axis ratio of thermal expansion, copper foil peeling strength, inner resin flow, branch-like pattern, dielectric constant, dissipation factor and flame retardancy may be improved.

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Certain phosphonic acid salts heated at temperatures over 200° C. generate thermally stable, highly efficient flame retardant materials well suited for use as flame retardant additives in polymers. The flame retardants of the invention can be used as the sole flame retardant in a composition or in combination with other flame retardants, synergists or adjuvants.

There is provided herein a curing agent compound for curing thermosetting resins, e.g., epoxy resins, a composition comprising a thermoplastic and/or thermosetting resin, e.g., an epoxy resin and the curing agent, an article comprising the curing agent, and a method of making the curing agent.

The invention features compounds of the general formula (I) in which the variable groups are as defined herein, and to their preparation and use.

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