SELVSLUKKENDE POLYMERE INDEHOLDENDE ET BRANDHAEMMENDE MIDDEL

The present invention relates to self-extinguishing compositions based on olefin polymers or copolymers, such as polypropylene, polyethylene, ethylene-propylene copolymers, EPDM rubbers and other polymers, such as polystyrene, ABS resins, polyethylene terephthalate, polybutylene terephthalate, polycarbonates, and polyamides. More particularly, the present invention relates to self-extinguishing polymeric compositions comprising, for 100 parts of a polymer as such or containing inert fillers and/or other additives: (1) 5 to 30 parts of an ammonium phosphate; and (2) 3 to 20 parts of one or more nitrogen containing compounds selected from a group consisting of (a) those containing the groups >C=O and/or >C=S and >NH inserted in a cyclic structure; (b) those containing the group -CO-NH-(CH2)n- in which n is an integer having a value of at least 1, and (c) the reaction products of compounds (a) and/or (b) with aldehydes.