Novel polyimides and polyamic intermediates thereof

Claim 2

A polyimide resin, comprising a chain of recurring units of the formula characterized in that A is and B is where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where Z is oxygen or sulfur; where X or Y or X and Y may be a carbonyl or carbinol group; where the nitrogens may be independently attached to the benzene rings in the 2-, 3-, or 4- positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and where n is greater than I and equals the number of mers per molecule.

Claim 3

A polyamic resin, comprising a chain of recurring units of the formula characterized in that A' is and B is where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where R 1 and R 2 may be hydrogen or the same or different hydrocarbon monovalent radicals; where Z is oxygen or sulfur; where X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogen may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and wherein n is greater than 1 and equals the number of mers per molecule.

Claim 4

A polyamic resin, comprising a chain of recurring units of the formula characterized in that A' is and B is where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where R 1 and R 2 may be hydrogen or the same or different hydrocarbon monovalent radicals; where Z is oxygen or sulfur; where X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogen may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and wherein n is greater than 1 and equals the number of mers per molecule.

Claim 5

The resin of Claim 1 or 2, characterized in that R is the tetravalent residue derived from a 3,3',4,4'-benzophenone tetracarboxylic acid compound, Z is oxygen or sulfur, X and Y are carbonyl groups, and both nitrogens are in the 3-position; or characterized in that R is the tetravalent residue derived from a 3,3',4,4'-benzophenone tetracarboxylic acid compound, Z is oxygen, X and Y are carbinol groups, and both nitrogens are in the 3-position; or characterized in that R is the tetravalent residue derived from a 3,3',4,4'-benzophenone tetracarboxylic acid compound, Z is oxygen, X and Y are carbonyl groups, carbinol groups, or mixtures of carbonyl and carbinol groups, and both nitrogens are in the 4-position; or characterized in that R is the tetravalent residue derived from a pyromellitic acid compound, Z is oxygen, X and Y are carbonyl groups, and both nitrogens are in the 3-position.

Claim 6

An end-capped polyimide resin, comprising a chain of recurring units having one or more of the formulas: or characterized in that A is and B is where R 3 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic primary monoamine; R 4 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic monoanhydride; where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where Z is oxygen or sulfur; wherein X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogens may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and where m is one or greater and equals the number of mers per molecule.

Claim 7

An end-capped polyimide resin, comprising a chain of recurring units having one or more of the formulas: or characterized in that A is and B is where R 3 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic primary monoamine; R 4 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic monoanhydride; where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where Z is oxygen or sulfur; wherein X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogens may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and where m is one or greater and equals the number of mers per molecule.

Claim 8

An end-capped polyamic resin, comprising a chain of recurring units having one or more of the following formulas: or characterized in that A' is and B is where R 3 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic primary monoamine; R 4 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic monoanhydride; where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where R 1 and R 2 may be hydrogen or the same or different hydrocarbon monovalent radicals; where Z is oxygen or sulfur; where X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogens may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and where m is one or greater and equals the number of mers per molecule.

Claim 9

An end-capped polyamic resin, comprising a chain of recurring units having one or more of the following formulas: or characterized in that A' is and B is where R 3 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic primary monoamine; R 4 is an inert or polymerizable monovalent organic radical derived from an aliphatic, cycloaliphatic, or aromatic monoanhydride; where R may be an aliphatic organic tetravalent radical containing at least two carbon atoms with no more than two carbonyl groups being attached to any one carbon atom of said tetravalent radical or where R may be a cycloaliphatic or aromatic tetravalent radical containing at least one ring with the four carbonyl groups being attached directly to separate carbon atoms in one or two rings of said radical and with each pair of carbonyl groups being attached to adjacent carbon atoms in said ring or rings of said radical; where R 1 and R 2 may be hydrogen or the same or different hydrocarbon monovalent radicals; where Z is oxygen or sulfur; where X or Y or X and Y may be a carbonyl or carbinol group; wherein the nitrogens may be independently attached to the benzene rings in the 2-, 3-, or 4-positions; where isomerism is present when X or Y or X and Y are said carbinol groups; and where m is one or greater and equals the number of mers per molecule.

Claim 10

The resin of Claim 4 or 5, characterized in that R is the tetravalent residue dervied from a 3,3',4,4'-benzophenone tetracarboxylic acid compound, Z is oxygen, X and Y are carbonyl groups, both nitrogens are in the 3-position, and R 3 is a polymerizable monovalent organic radical derived from 3-aminophenyl acetylene; or characterized in that R is the tetravalent residue derived from a 3,3',4,4'-benzophenone tetracarboxylic acid compound, Z is oxygen, X and Y are carbonyl groups, both nitrogens are in the 3-position, and R 4 is a polymerizable monovalent organic radical derived from cis-endo-5-norbornene-2,3-dicarboxylic anhydride.

Claim 11

The resin characterized in that it results from the addition polymerization of the composition of Claim 6.