FIRE-RETARDANT PHOSPHORUS-SULPHUR ADDITIVES AND POLYMER SYSTEMS CONTAINING SAID ADDITIVES Russian patent published in 2013 - IPC C07F9/165 C07F9/173 C07F9/177 C08K5/5398 C08J9/00 C08L101/12 

FIELD: chemistry.

SUBSTANCE: present invention relates to compounds of formulae:

or ,

which are suitable for obtaining foamed polymers, where X denotes O; T denotes S; X' denotes O or S, n - valence A ≤ 2, R² denotes H or alkyl, R³ denotes a hydrocarbon, and A denotes: alkylene, optionally substituted with an ester, ether or amide; an unsaturated hydrocarbon; an alicyclic group; diphenylmethyl; an aromatic group; , where R⁷ denotes H, a hydrocarbon and p=6-n; , where R⁵ denotes an alkyl group, as in compounds and , or a polymer residue, where the phosphorus-sulphur compound contains 5-50 wt % sulphur.

EFFECT: novel compounds which are effective fire-retardant additives for foamed polymers.

6 cl, 38 ex