Self-extinguishing polymeric compositions
AssigneeMinstero dell `Universita` e della Ricerca Scientifica e Technologica
InventorsRoberto Cipolli, Roberto Oriani, Gilberto Nucida, Enrico Masarati
Life of this patent
Estimating the term…
Abstract
Polymeric compositions with good flame self-extinguishing characteristics, ased on thermoplastic polymers or polymers with elastomeric properties, especially olefinic polymers or copolymers, comprising: a) from 90 to 40 parts by weight of a thermoplastic polymer or a polymer with elastomeric properties; b) from 6 to 33 parts by weight of one or more ammonium or amine phosphates and/or phosphonates; c) from 4 to 27 parts by weight of one or more salts of 2,4,6-triamino-1,3,5-triazine derivatives with cyanuric acid, of general formula (I): ##STR1##
Claims11
Self-extinguishing polymeric compositions comprising:
- a) from 90 to 40 parts by weight of a thermoplastic polymer or a polymer with elastomeric properties;
- b) from 6 to 33 parts by weight of one or more ammonium or amine phosphates, phosphonates or mixtures therein;
- c) from 4 to 27 parts by weight of one or more salts of 2,4,6-triamino-1,3,5-triazine derivatives with cyanuric acid, of formula (I):
- ##STR39## where:
- at least one of the radicals from R to R.sub.5 is:
- ##STR40## in which:
- m is a whole number between 1 and 7:
- p is a whole number between 1 and 5;
- R.sup.6 is H, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.6 alkenyl, --C.sub.q H.sub.2q ]O--R.sub.8 where q is a whole number between 1 and 4 and R.sub.8 is H, C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.7, which can be the same or different, are:
- H, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.6 -C.sub.12 cycloalkyl, alkylcycloalkyl, C.sub.1 -C.sub.4 hydroxyalkyl, the group:
- ##STR41## is replaced by a heterocyclic radical bound to the alkyl chain by the nitrogen atom, selected from the group consisting of aziridine, pyrrolidine, piperidine, morpholine, thiomorpholine, piperizine, 4-methylpiperazine, 4-ethylpiperazine,
- or in formula (I) at least one member of the group ##STR42## is replaced by a heterocyclic radical bound to the triazine ring by the nitrogen atom selected from the group consisting of aziridine, pyrrolidine, piperidine, morpholine, thiomorpholine, piperazine, 4-methylpiperazine, 4-ethylpiperazine, 2-methylpiperazine, 2,5-dimethylpiperazine, 2,3,5,6-tetramethylpiperazine, 2,2,5,5-tetramethylpiperazine, 2-ethylpiperazine, and 2,5-diethyl-piperazine, the other radicals from R to R.sub.5, which can be the same or different, and have the aforesaid meanings;
- or are members selected from the group consisting of H, C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.6 -C.sub.16 cycloalkyl, alkylcycloalkyl, or their hydroxyl or C.sub.1 -C.sub.4 hydroxyalkyl derivatives.
Dependencies are inferred from the claim text.