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Self-extinguishing polymeric compositions

  • US 5,223,560 A
  • Filed: 07/21/1992
  • Issued: 06/29/1993
  • Est. Priority Date: 08/28/1989
  • Status: Expired due to Fees
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1. Polymeric self-extinguishing compositions 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 formula (I);

    ##STR109## wherein the radicals from R to R3, which can be either equal to or different from one another, and can have different meanings in each triazinic ring are;

    H;

    (C1 -C18)-alkyl;

    (C2 -C8)-alkenyl;

    (C6 -C16)-cycloalkyl or -alkylcycloalkyl, optionally substituted with a hydroxy or (C1 -C4)-hydroxyalkyl function;

    ##STR110## wherein;

    n=an integer within the range of from 2 to 8;

    m=an integer within the range of from 2 to 6;

    R5 =H;

    (C1 -C8)-alkyl;

    (C2 -C6)-alkenyl;

    --Cp H2p --O--R7 ;

    wherein p is an integer within the range of from 1 to 4 and R7 is either H or a (C1 -C4)-alkyl;

    (C6 -C12)-cycloalkyl or -alkylcycloalkyl;

    the radicals R6, which can be either equal to, or different from, one another, are;

    H;

    (C1 -C8)-alkyl;

    (C2 -C6)-alkenyl;

    (C6 -C12)-cycloalkyl or -alkylcycloalkyl;

    (C1 -C4)-hydroxyalkyl;

    or the moiety;

    ##STR111## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom and possibly containing another heteroatom;

    or in formula (I) at least one of the moieties ##STR112## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom and optionally containing another heteroatom;

    a is either 0 or 1;

    b is 0 or an integer within the range of from 1 to 5;

    R4 is hydrogen or;

    R4 is hydrogen or;

    ##STR113## and its meaning can vary inside each repeating unit;

    when b is zero, Z is a divalent radical comprised in one of the following formulas;

    ##STR114## where radicals R8, like or different from one another, are hydrogen or (C1 -C4)-alkyl;

    ##STR115## where r is an integer comprised within the range of from 2 to 14;

    R9 is hydrogen;

    (C1 -C4)-alkyl;

    (C2 -C6)-alkenyl;

    (C1 -C4)-hydroxyalkyl;

    ##STR116## where s is an integer within the range of from 2 to 5 and t is an integer within the range of from 1 to 3;

    ##STR117## where;

    X is a direct bond C--C;

    O;

    S;

    S--S;

    SO;

    SO2 ;

    NH;

    NHSO2 ;

    NHCO;

    N═

    N;

    CH2 ;

    R10 is hydrogen;

    hydroxyl;

    (C1 -C4)-alkyl;

    (C1 -C4)-alkoxyl;

    ##STR118## where A can be a saturated or unsaturated cycle;

    ##STR119## where s has the hereinabove defined meaning;

    when b is an integer within the range of from 1 to 5, the group;

    ##STR120## is a polyvalent radical comprised in one of the following formulas;

    ##STR121## where;

    R11 is either hydrogen or (C1 -C4)-alkyl;

    c is an integer within the range of from 1 to 5;

    the indexes s, which can be either equal to or different from each other, have the hereinabove defined meaning;

    ##STR122## where;

    R11 has the hereinabove defined meaning;

    w is an integer within the range of from 2 to 4;

    d is either 1 or 2.

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