FIRE-RESISTANT EXPANDED POLYMERISATES Russian patent published in 2016 - IPC C08J9/00 C08L53/02 C08K3/00 C08K5/49 C08K3/30 C09K21/04 C09K21/12 C08F12/08 C08K5/36 

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant expanded polymerisates containing, as a fire-retardant system, a combination of at least one phosphorus compound as a fire-retardant and at least one sulphur compound as an additional fire-retardant or a fire-retardant adjuvant, as well as to methods of producing the said polymerisates and polymer foam plastics. Fire-resistant, preferably without using halogens, expanded styrene polymerisates, containing a blowing agent and a fire-retardant system, which is a combination of a phosphorus compound and a sulphur compound as an additional fire-retardant, wherein the phosphorus compound is elementary phosphorus and/or at least one inorganic phosphorus compound and/or at least one organic phosphorus compound of general formula

,

wherein residues R₁, R₂, R₃ independently denote organic or inorganic residues, and so that the sulphur compound is elementary sulphur and/or at least one inorganic or organic sulphur or sulphur-containing compound.

EFFECT: invention enables to obtain halogen-free foam plastic with optimum fire-resistance and good mechanical properties.

28 cl, 2 tbl, 18 ex