Polyamines with imide groups

Claim 2

A polyamine obtained by heating at least one unsaturated polyimide of the formula: ##STR22## with at least one polyamine of the formula: Z(NH.sub.2).sub.b in bulk at a temperature sufficient to initiate a reaction, said temperature being between 50° and 200° C., in which a and b each independently represents a number ranging from 2 to 4 corresponding to the valency of Y and Z, respectively, Y and Z, which may be identical or different represents either: a divalent organic radical which is a straight or branched chain alkylene radical with less than 13 carbon atoms, a phyenylene radical or cyclohexylene radical, a radical of one of the formulae: ##STR23## wherein n represents an integer from 1 to 3, or a plurality of phenylene or cyclohexylene radicals joined to one another either by a valency bond or by a group which is one of the following --O--, --S--, an alkylene group with 1 to 3 carbon atoms, --CO--, --SO 2 --, --CONH--, --COO--, --P(O)R 1 --, --CONH--X--NHCO--, ##STR24## wherein R 1 represents a hydrogen atom, an alkyl radical with 1 to 4 carbon atoms, phenyl or cyclohexyl and X represents an alkylene radical with less than 13 carbon atoms, the phenylene or cyclohexylene radical being unsubstituted or substituted by methyl groups; or a 2 to 4 valent radical of formula: ##STR25## in which x is a number from 0.1 to 2, A and B, which may be identical or different, represents a hydrogen atom, a methyl group or a chlorine atom, the ratio of the number of NH 2 groups introduced by the polyamine to the number of imide groups introduced by the polyimide being from 1.05 to 2.

Claim 3

A polyamine obtained by heating at least one unsaturated polyimide of the formula: ##STR26## with at least one polyamine of the formula: Z(NH.sub.2).sub.b in a solvent for the reactants, at a temperature sufficient to initiate a reaction, said temperature being between 20° C. and 150° C., in which a and b each independently represents a number ranging from 2 to 4 corresponding to the valency of Y and Z, respectively, Y and Z, which may be identical or different represents either: a divalent organic radical which is a straight or branched chain alkylene radical with less than 13 carbon atoms, a phenylene radical or cyclohexylene radical, a radical of one of the formulae: ##STR27## wherein n represents an integer from 1 to 3, or a plurality of phenylene or cyclohexylene radicals joined to one another either by a valency bond or by a group which is one of the following --O--, --S--, an alkylene group with 1 to 3 carbon atoms, --CO--, --SO 2 --, --CONH--, --COO--, --P(O)R 1 --, --CONH--X--NHCO--, ##STR28## wherein R 1 represents a hydrogen atom, an alkyl radical with 1 to 4 carbon atoms, phenyl or cyclohexyl and X represents an alkylene radical with less than 13 carbon atoms, the phenylene or cyclohexylene radical being unsubstituted or substituted by methyl groups; or a 2 to 4 valent radical of formula: ##STR29## in which x is a number from 0.1 to 2, A and B, which may be identical or different, represents a hydrogen atom, a methyl group or a chlorine atom, the ratio of the number of NH 2 groups introduced by the polyamine to the number of imide groups introduced by the polyimide being from 1.05 to 2.

Claim 4

A polyamine obtained by heating at least one unsaturated polyimide of the formula: ##STR26## with at least one polyamine of the formula: Z(NH.sub.2).sub.b in a solvent for the reactants, at a temperature sufficient to initiate a reaction, said temperature being between 20° C. and 150° C., in which a and b each independently represents a number ranging from 2 to 4 corresponding to the valency of Y and Z, respectively, Y and Z, which may be identical or different represents either: a divalent organic radical which is a straight or branched chain alkylene radical with less than 13 carbon atoms, a phenylene radical or cyclohexylene radical, a radical of one of the formulae: ##STR27## wherein n represents an integer from 1 to 3, or a plurality of phenylene or cyclohexylene radicals joined to one another either by a valency bond or by a group which is one of the following --O--, --S--, an alkylene group with 1 to 3 carbon atoms, --CO--, --SO 2 --, --CONH--, --COO--, --P(O)R 1 --, --CONH--X--NHCO--, ##STR28## wherein R 1 represents a hydrogen atom, an alkyl radical with 1 to 4 carbon atoms, phenyl or cyclohexyl and X represents an alkylene radical with less than 13 carbon atoms, the phenylene or cyclohexylene radical being unsubstituted or substituted by methyl groups; or a 2 to 4 valent radical of formula: ##STR29## in which x is a number from 0.1 to 2, A and B, which may be identical or different, represents a hydrogen atom, a methyl group or a chlorine atom, the ratio of the number of NH 2 groups introduced by the polyamine to the number of imide groups introduced by the polyimide being from 1.05 to 2.

Claim 5

A polyamine according to claim 1 in which Y and Z, which may be the same or different, each contains 2 to 4 phenylene or cyclohexylene radicals.

Claim 6

A polyamine according to claim 2 in which Y and Z, which may be the same or different, each contains 2 to 4 phenylene or cyclohexylene radicals.

Claim 7

A polyamine according to claim 1 in which Y and Z, which may be the same or different, represent a radical of the formula: ##STR30## in which x is a number from 0.1 to 2.

Claim 8

A polyamine according to claim 2 in which Y and Z, which may be the same or different, represent a radical of the formula: r1 ? ##STR31## in which x is a number from 0.1 to 2.

Claim 9

A polyamine according to claim 1 in which Y and Z, which may be identical or different, represents either: a divalent organic radical which is a straight or branched chain alkylene radical with less than 13 carbon atoms, a phenylene radical or cyclohexylene radical, a radical of one of the formulae: ##STR32## wherein n represents an integer from 1 to 3, or a plurality of phenylene or cyclohexylene radicals joined to one another by a valency bond or by --O--, --S--, or an alkylene group with 1 to 3 carbon atoms.

Claim 10

A polyamine according to claim 2 in which Y and Z, which may be identical or different, represents either: a divalent organic radical whic is a straight or branched chain alkylene radical with less than 13 carbon atoms, a phenylene radical or cyclohexylene radical, a radical of one of the formulae: ##STR33## wherein n represents an integer from 1 to 3, or a plurality of phenylene or cyclohexylene radicals joined to one another by a valency bond or by --O--, --S--, or an alkylene group with 1 to 3 carbon atoms.

Claim 11

A polyamine according to claim 2 in which the solvent is dimethylformamide, N-methylpyrrolidone, dimethylacetamide, N-methylcaprolactam, N-acetylpyrrolidone or cresol.

Claim 12

A polyamine according to claim 1 in which Y or Z represents a radical or formula: ##STR34##

Claim 13

A polyamine according to claim 2 in which Y or Z represents a radical of formula: ##STR35##

Claim 14

A polyamine according to claim 1 in which the polyamine has the general formula: ##STR36## in which x is a number from 0.1 to 2.

Claim 15

A polyamine according to claim 1 in which the polyamine has the general formula: ##STR37## in which x is a number from 0.1 to 2.