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US 5,629,382 AGranted
Self-extinguishing polymeric compositions
AssigneeMinistero Dell'Universita'e Della Ricerca Scientifica e Tecnologica
InventorsRoberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
Life of this patent
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Abstract
Self-extinguishing polymeric compositions comprising ammonium polyphosphate aving the general formula (I): (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I) microencapsulated with condensation compounds obtained by means of the polymerization of polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (II): ##STR1## with aldehydes, preferably formaldehyde.
Claims36
A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;
- (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A) reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (II):
- ##STR99## wherein:
- the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are:
- H;
- C.sub.1 -C.sub.18 alkyl;
- C.sub.2 -C.sub.8 alkenyl;
- C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function;
- ##STR100## wherein:
- m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H;
- C.sub.1 -C.sub.4 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are:
- H, C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- C.sub.1 -C.sub.4 hydroxyalkyl;
- or the moiety:
- ##STR101## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom;
- or in the general formula (II) the moiety:
- ##STR102## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom;
- Z is a divalent radical falling within the scope of one of the following formulas:
- ##STR103## wherein the radicals R.sub.7, which may be the same or different from each other, are hydrogen or C.sub.1 -C.sub.4 alkyl;
- ##STR104## wherein r is an integer comprised within the range of from 2 to 14;
- R.sub.8 is hydrogen;
- C.sub.1 -C.sub.4 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.1 -C.sub.4 hydroxyalkyl;
- ##STR105## wherein s is an integer comprised within the range of from 2 to 5 and t is an integer comprised within the range of from 1 to 3;
- ##STR106## wherein;
- X is a direct C--C bond;
- O;
- S;
- S--S;
- SO;
- SO.sub.2 ;
- NH;
- NHSO.sub.2 ;
- NHCO;
- N.dbd.N;
- CH.sub.2 ;
- R.sub.9 is hydrogen;
- hydroxy;
- C.sub.1 -C.sub.4 alkyl;
- C.sub.1 -C.sub.4 alkoxy;
- ##STR107## wherein A may be a saturated or unsaturated ring;
- ##STR108## wherein s has the above defined meaning;
- and (B) causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
54 more elements
A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;
- (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A') reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (XIII):
- ##STR111## wherein:
- the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are:
- H;
- C.sub.1 -C.sub.18 alkyl;
- C.sub.2 -C.sub.8 alkenyl;
- C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function;
- ##STR112## wherein:
- m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H;
- C.sub.1 -C.sub.4 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are:
- H, C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- C.sub.1 -C.sub.4 hydroxyalkyl;
- or the moiety:
- ##STR113## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom;
- or in the general formula (XIII) the moiety:
- ##STR114## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom;
- R.sub.3 is hydrogen or:
- ##STR115## and its meaning may vary within each repeating unit;
- and wherein:
- R.sub.10 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- c is an integer comprised within the range of from 1 to 5;
- the index s, which may be the same, or different from each other, is an integer comprised within the range of from 2 to 5;
- and
- (B') causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
35 more elements
A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;
- (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A") reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (XIV):
- ##STR118## wherein:
- the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are:
- H;
- C.sub.1 -C.sub.18 alkyl;
- C.sub.2 -C.sub.8 alkenyl;
- C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function;
- ##STR119## wherein:
- m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H;
- C.sub.1 -C.sub.4 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are:
- H, C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- C.sub.1 -C.sub.4 hydroxyalkyl;
- or the moiety:
- ##STR120## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom;
- or in the general formula (XIV) the moiety:
- ##STR121## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom;
- R.sub.3 is hydrogen or:
- ##STR122## and its meaning may vary within each repeating unit;
- wherein:
- R.sub.10 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- w is an integer comprised within the range of from 2 to 4;
- d is either 1 or 2;
- and
- (B") causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
35 more elements
The self-extinguishing polymeric composition according to claim in which the aldehyde is formaldehyde or a mixture containing formaldehyde and, up to 20% by mol, of another aldehyde having the general formula (III);
- R.sub.7 --CHO (III)
- wherein R.sub.7 is C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.8 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl;
- C.sub.6 -C.sub.12 aryl.
2 more elements
Dependencies are inferred from the claim text.