Claims
- 1. Poly(amide-imides) derived from the following monomers: ##STR57## wherein R' and R" are independently hydrogen, straight chain or branched C.sub.1 to C.sub.10 alkyl and C.sub.6 to C.sub.20 aryl groups; at least one of R' or R" is hydrogen where amide bonds are formed; both R' and R" are hydrogens in cases where imide bonds are formed; R.sub.3 is a phenyl, a CF.sub.3 or an alkyl group having from 1 to 10 carbon atoms; R.sub.4 and R.sub.5 are independently hydrogen, halogen, alkyl or alkoxy groups having from 1 to 4 carbon atoms, or aryl and aryloxy groups having from 6 to 20 carbon atoms; R.sub.6 is hydrogen or an alkyl having more than one carbon atom, an aryl or aryloxy having from 6 to 20 carbon atoms; and Ar is ##STR58## wherein X can be a chemical bond, O, S, SO, SO.sub.2, ##STR59## CH.sub.2, an alkylene or alkylidene having from 2 to 8 carbon atoms, a cycloalkylene or cycloalkylidene having from 5 to 14 carbon atoms, or a phenylene group which may be substituted by an alkyl or alkoxy group having from 2 to 4 carbon atoms, or by a halogen; the group Ar may also be selected from ##STR60## or an isomer thereof; ##STR61## or an isomer thereof; ##STR62## or an isomer thereof; and wherein the subject monomers are used in an amount of at least 50 mole % based on the total monomers used.
- 2. Poly(amide-imides) according to claim 1 wherein R.sub.3 is methyl.
- 3. Poly(amide-imides) according to claims 1 or 2 which contain one or more of the following monomers
- N.sub.2 NAr'NH.sub.2,
- HOOC-Ar"-COOH where Ar' and Ar" are divalent aromatic radicals, ##STR63## where Ar.sub.2 is a trivalent aromatic radical, and ##STR64## where Ar.sub.3 is a tetravalent aromatic radical.
- 4. Poly(amide-imides) according to claim 3, wherein Ar' is of the formulae ##STR65## or isomers thereof, and ##STR66## where X is as defined in claim 1; Ar" is Ar' or ##STR67## where R.sub.7 is a straight chain or branched C.sub.1 to C.sub.8 alkyl group, a halogen, or a C.sub.1 to C.sub.8 straight chain or branched alkoxy group and where Z can be 1, 2, or 3 and Ar.sub.2 is ##STR68## or isomers thereof, and ##STR69## where X is as defined in claim 1.
- 5. Poly(amide-imides) according to claims 1 or 2 or 3 or 4 which contain up to 25 mole % (based on the total amine monomers) of a straight chain or branched aliphatic or of an arylaliphatic diamine.
- 6. Poly(amide-imides) according to the claims 1 or 2 or 3 or 4 or 5 which contain up to 25 mole % (based on the total acid monomers) of a straight chain or branched aliphatic diacid or of an arylaliphatic diacid.
- 7. A poly(amide-imide) according to claims 1 or 2 or 3 or 4 or 5 which is the reaction product of a diamine and a tricarboxylic acid mono-anhydride or derivative thereof.
- 8. A poly(amide-imide) according to claims 1 or 2 or 3 or 4 or 5 or 6 which is the reaction product of a dianhydride of a tetracarboxylic acid, a dicarboxylic acid, and a diamine or derivatives thereof.
- 9. A poly(amide-imide) according to claims 1 or 2 or 3 or 4 or 5 or 6 which is the reaction product of a tricarboxylic acid monoanhydride, a dicarboxylic acid, and a diamine or derivatives thereof.
- 10. A poly(amide-imide) according to claims 1 or 2 or 3 or 4 or 5 or 6 which is the reaction product of a tricarboxylic acid monoanhydride, a dianhydride of a tetracarboxylic acid, and a diamine or derivatives thereof.
- 11. A poly(amide-imide) according to claims 1 or 2 or 3 or 4 or 5 or 6 which is the reaction product of a tricarboxylic acid monoanhydride, a dianhydride of a tetracarboxylic acid, and a dicarboxylic acid, and a diamine, or derivatives thereof.
- 12. A poly(amide-imide) comprising repeating units of the formula ##STR70##
- 13. A poly(amide-imide) comprising repeating units of the formula ##STR71##
- 14. A process for the preparation of an aromatic poly(amide-imide) comprising
- (a) reacting a diamine with a monoanhydride of a tricarboxylic acid or derivative thereof in a solvent to form the intermediate poly(amide-acid), then
- (b) chemically or thermally cyclizing the intermediate poly(amide-acid) to the poly(amide-imide).
- 15. A process according to claim 14 where the solvent is a diaryl sulfone or a diaryl ketone.
- 16. A process according to claims 14 or 15 where the diaryl sulfone is diphenyl sulfone.
- 17. A process according to claims 14 or 15 where the diaryl ketone is benzophenone.
- 18. A process for the preparation of an aromatic poly(amide-imide) comprising reacting an aromatic diisocyanate with a with a monoanhydride of a tricarboxylic acid in a solvent, optionally in the presence of a catalyst.
- 19. A process according to claim 18 where the solvent is a diaryl sulfone or a diaryl ketone.
- 20. A process according to claims 18 or 19 where the diaryl sulfone is diphenyl sulfone.
- 21. A process according to claims 18 or 19 where the diaryl ketone is benzophenone.
REFERENCE TO RELATED APPLICATIONS
This is a division of application Ser. No. 122,017, filed 11/18/87, now U.S. Pat. No. 4,925,916, which is a divisional application of 946,261 filed 12/24/86, now U.S. Pat. No. 4,713,438, which is a continuation-in-part of Ser. No. 760,592 filed 7/30/85, abandoned, and Ser. No. 933,422, filed 11/21/86, abandoned, said Ser. No. 933,422 is a continuation of Ser. No. 757,933, filed 7/23/85, abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (3)
Number |
Date |
Country |
61-014218 |
Jan 1986 |
JPX |
61-126136 |
Jun 1986 |
JPX |
61-126137 |
Jun 1986 |
JPX |
Divisions (2)
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Number |
Date |
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Parent |
122017 |
Nov 1987 |
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Parent |
946261 |
Dec 1986 |
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Continuations (1)
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Number |
Date |
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Parent |
757933 |
Jul 1985 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
760592 |
Jul 1985 |
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