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US 5,350,848 AGranted
Triazinylphosphonic acids and their use in self-extinguishing polymeric compositions
AssigneeMinistero deli'Universita e della Ricerca Scientifica e Tecnologica
InventorsRoberto Cipolli, Cristina Rossi, Roberto Oriani, Enrico Masarati, Gilberto Nucida
Life of this patent
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Abstract
Triazinylphosphonic acids of general formula (I): ##STR1## obtained by subsequent condensation reaction of a cyanuric halide with a osphite and with amines, and then by hydrolysis reaction of the intermediate thus obtained; The compounds of general formula (I) are used in particular as flame retardant additives.
Claims4
A triazinylphosphonic acid of the formula (I):
- ##STR47## wherein at least one of the radicals R, R.sub.1, R.sub.2 and R.sub.3 is selected from the group consisting of --CH.sub.2 --C.sub.m H.sub.2m --O--R.sub.4, --CH.sub.2 --C.sub.p H.sub.2p -- and ##STR48## in which:
- m is a whole number between 1 and 7;
- p is a whole number between 1 and 5;
- R.sub.4 is selected from the group consisting of H;
- C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- --C.sub.q H.sub.2q --O--R.sub.6, where q is a whole number between 1 and 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl and C.sub.1 -C.sub.8 -alkyl-C.sub.6 -C.sub.12 -cycloalkyl;
- provided that when R.sub.4 is H, m is a whole number between 2 and 7;
- and
- the radicals R.sub.5, which can be the same or different, are selected from the group consisting of H;
- C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl;
- C.sub.1 -C.sub.8 -alkyl-C.sub.6 -C.sub.12 -cycloalkyl;
- and C.sub.1 -C.sub.4 hydroxyalkyl;
- or
- one or more pairs of radicals selected from the group consisting of (a) R and R.sub.1, (b) R.sub.2 and R.sub.3, and (c) the radicals R.sub.5 may be joined to form a heterocyclic radical selected from the group consisting of aziridine, pyrrolidine, piperidine, morpholine, thiomorpholine and piperazine, each of which may be substituted with from 1 to 4 C.sub.1 -C.sub.2 alkyl groups, and
- the remaining radicals R, R.sub.1, R.sub.2 and R.sub.3, which can be the same or different, are selected from the group consisting of H;
- C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.8 alkenyl;
- C.sub.6 -C.sub.16 cycloalkyl;
- and C.sub.1 -C.sub.8 -alkyl-C.sub.6 -C.sub.12 -cycloalkyl, each of which may be substituted with a hydroxyl or C.sub.1 -C.sub.4 hydroxyalkyl group.
20 more elements
A triazinylphosphonic acid of the formula (I):
- ##STR50## wherein R is selected from the group consisting of at least one of the radicals R, R.sub.1, R.sub.2 and R.sub.3 is selected from the group consisting of --CH.sub.2 --C.sub.m H.sub.2m --O--R.sub.4, --CH.sub.2 --C.sub.p H.sub.2p -- and ##STR51## in which:
- m is a whole number between 1 and 7;
- p is a whole number between 1 and 5;
- R.sub.4 is selected from the group consisting of H;
- C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- --C.sub.q H.sub.2q --O--R.sub.6, where q is a whole number between 1 and 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
- C.sub.6 -C.sub.12 cycloalkyl and C.sub.1 -C.sub.8 -alkyl-C.sub.6 -C.sub.12 -cycloalkyl;
- provided that when R.sub.4 is H, m is a whole number between 2 and 7;
- and
- the radicals R.sub.5, which can be the same or different, are selected from the group consisting of H;
- C.sub.1 -C.sub.8 alkyl;
- C.sub.2 -C.sub.6 alkenyl;
- C.sub.6 -C.sub.12 cycloalkyl;
- C.sub.1 -C.sub.8 -alkyl-C.sub.6 -C.sub.12 -cycloalkyl;
- and C.sub.1 -C.sub.4 hydroxyalkyl;
- and
- R.sub.1, R.sub.2 and R.sub.3 are each H.
15 more elements
Dependencies are inferred from the claim text.