Self-extinguishing polymeric compositions

Details Self-extinguishing polymeric compositions Self-extinguishing polymeric compositions

C - Chemistry, Metallurgy

08

K

400/7038

C08K 3/28 (2006.01) C08K 3/32 (2006.01) C08K 5/34 (2006.01) C08K 5/3492 (2006.01) C08K 5/35 (2006.01)

Patent

CA 2020286

ABSTRACT OF THE DISCLOSURE: Polymeric compositions endowed with high self extinguishing characteristics when exposed to a flame, based on thermoplastic polymers or polymers endowed with elastomeric properties, in particular olefinic polymers or copolymers, comprising: (a) from 89 to 45 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties; (b) from 8 to 30 parts by weight of one or more ammonium or amine phosphate(s) and/or phosphonate(s); (c) from 3 to 25 parts by weight of one or more compound(s) derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): Image (I) wherein at least one of the radicals from R to R5 is: Image ; Image ; wherein: n = an integer comprised within the range of from 2 to 8; m = an integer comprised within the range of from 2 to 6; R6 = H; (C1-C8)-alkyl; (C2-C6)-alkenyl; Image , wherein p is an integer comprised within the range of from 1 to 4 and R8 is either H or a (C1-C4)-alkyl; (C6-C12-cycloalkyl or (C6-C12)-alkylcycloalkyl; the radicals R7, which can be either equal to, or different from, one another, are: H; (C1-C8)-alkyl; (C2-C6)-alkenyl; (C6-C12)-cycloalkyl or (C6-C12)-alkylcycloalkyl; (C1-C4)-hydroxyalkyl; or the moiety: Image is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom and possibly containing another heteroatom preferably selected from the group consisting of I, S, N; or in general formula (I) at least one of the moieties Image ; Image ; Image ; is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom and possibly containing another heteroatom preferably selected from the group consisting of I, S, N; the other radicals from R to R5, which can be either equal to, or different from, one another, have the above said meaning, or they are: H; (C1-C18)-alkyl; (C2-C8)-alkenyl; (C6-C16)-cycloalkyl or (C6-C16)-alkylcycloalkyl, possibly substituted with a hydroxy or (C1-C4)-hydroxyalkyl function.

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