Abstract: Piperazine cyanurate with specified formula and its use in the preparation of self-extinguishing polymer compositions.

Abstract: Self-extinguishing polymeric compositions comprising by weight:(1) from 49 to 99% of a thermoplastic polymer(2) from 1 to 50% of melamine bromohydrate(3) from 0 to 1% of a promoter of free radicals.

Abstract: Disclosed are complexes of bismuth or antimony halides with amines having formula:R.cndot.(MeX.sub.3)y,where R is dicyandiamide, guanamine, 2-guanidinobenz-imidazole, isophoronediamine, piperazine, melamine or a compound having from 2 to 9 triazine rings condensed or linked to each other through at least one --NH-- group; Me is Bi or Sb; X is chlorine or bromine; and y is a number from 0.3 to 4. Processes for preparing the complexes and flame retardant thermoplastic polymer compositions containing the complexes are also disclosed.

Abstract: Polymeric compositions endowed with improved self-extinguishing properties, comprising by weight:(A) from 60 to 98.9% of a thermoplastic polymer;(B) from 0.1 to 10% of an antimony and/or bismuth compound;(C) from 0 to 1% of a promoter of free radicals;(D) from 1 to 30% of melamine bromohydrate.

Abstract: Self-extinguishing compositions comprising:(1) from 35.5 to 87% by weight of at least a polyolefin(2) from 5 to 20% by weight of an ammonium polyphosphate(3) from 2 to 20% by weight of polycarbonylpiperazine(4) from 3 to 10% by weight of melamine phosphate(5) from 0.5 to 3% by weight of titanium dioxide(6) from 0 to 1.5% by weight of a compound of formula R--SH wherein R is a radical of imidazole or of uracil.

Abstract: Self-extinguishing polyolefin compositions consisting of:(1) from 52 to 96.55% by weight of at least one olefin polymer or copolymer;(2) from 3 to 30% by weight of a nitrogenous compound selected from amongst 1,3,5-triazines, urea and dicyandiamide;(3) from 0.3 to 3% by weight of a free-radical promoting compound selected from amongst 2,3-dimethyl-2,3-diphenylbutane and 2,3-dimethyl-2,3-diphenyl-hexane;(4) from 0.15 to 15% by weight of a compound of formula(R.sub.1 --S).sub.n R.sub.3 or (II) R.sub.2 .dbd.S, (I)wherein R.sub.1 and R.sub.2 are imidazol, uracyl, alkyleneurea or benzotriazol radicals, R.sub.3 =H, or a metal of Group II (A) or (B), or aluminum.

Abstract: There is disclosed a solid and water-insoluble condensation product of N,N'-ethyleneurea with formaldehyde, having the structure ##STR1## wherein n is an integer from 20 to 60 with a mean value of 41, and having an average number molecular weight M.sub.n ranging from 2000 to 6000. Said product, when added to a polymer in combination with an ammonium phosphate, results in the production of articles which are resistant to heat and to thermo-oxidation.

Abstract: There are provided self-extinguishing compositions comprising, for each 100 parts of a polyolefin as such or containing inert fillers and/or other additives, from 5 to 30 parts of an ammonium or amine phosphate, from 3 to 20 parts of one or more nitrogen organic compound which, upon heating in the presence of the ammonium or amine phosphate, decompose to form a non-dripping carbonaceous mass, the nitrogen-containing compounds being selected from among(a) reaction products of aliphatic or aromatic diisocyanates or triisocyanates and organic compounds having reactive hydrogen atoms;(b) a mixture of (a) and/or an aldehyde/amine or aldehyde/urea reaction product with a polyamide; and(c) a mixture of an amine with a polyamide.The foregoing compositions provide acceptable levels of self-extinguishing properties without being corrosive or emitting toxic smokes or gases in the proximity of an open flame.

Abstract: The invention concerns impact resistant polymeric compositions having flame-resistance properties and comprising:(1) a blend of (a) 95-80% by weight of a thermoplastic block propylene-ethylene copolymer containing from 3 to 20% by weight of copolymerized ethylene, and(b) 5-20% by weight of an elastomeric ethylene-propylene copolymer containing from 50 to 70% by weight of copolymerized ethylene;(2) 0.5-5% of basic bismuth carbonate (BiO).sub.2 CO.sub.3 ;(3) 0.3-1.3% of a triazine compound selected from the group consisting of melamine, ammeline, ammelide, acetoguanamine, benzoguanamine and isocyanuric acid;(4) 2-10% of a chlorinated paraffin wax; and(5) 0.5-10% of a bromine containing organic compound selected from the group consisting of decabromodiphenyl oxide, octabromodiphenyl oxide, pentabromodiphenyl oxide, 1,2-bis(2.4.6-tribromophenoxy)ethane, pentabromophenol, pentabromotoluene and ethyl-pentabromobenzene;all percentages of anti-flame additives being referred to the total weight of the composition.

Abstract: The present invention concerns flame-resisting paints, in particular, those which can be applied on wood, metals and plastic materials or elastomers. More particularly, it concerns "intumescent paints" endowed with excellent fire-resistance characteristics.

Abstract: 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.dbd.O and/or >C.dbd.S and >NH inserted in a cyclic structure; (b) those containing the group --CO--NH--(CH.sub.2).sub.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.