US4681928A
Expired / Lapsed
US
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Poly(amide-amide acid), polyamide acid, poly(esteramide acid), poly(amide-imide), polyimide, poly(esterimide) from poly arylene diamine
Assignee: National Starch and Chemical Investment Holding Corp
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Filing: 1984-06-01
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Granted: 1987-07-21
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Expires: 2004-06-01
Abstract
Abstract Aromatic or aliphatic dianhydrides and/or acid anhydrides are reacted with certain aromatic diamines alone or in combination with other diamines to produce polyimides, polyamide acids, poly(amide-imides), poly(amide-amide acids), poly(esterimides) or poly(esteramide acids). These polymers are thermoplastic in nature and have improved processing characteristics and thermal stability. The polymers may be prepared by either melt or solution polymerization techniques.
Inventors
- 👤 Abe Berger
- 👤 Rohitkumar H. Vora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:16
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G73/00; C08G73/06; C08G73/10; C08G73/14; C08G73/1046; C08G73/1057; C08G73/1064; C08G73/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A thermoplastic polyimide, poly(amide-imide), poly(esterimide) polyamide acid, poly(amide-amide acid) or poly(esteramide acid) composition which contains at least about 10 mole percent of the reaction product of an aromatic or aliphatic tetracarboxylic dianhydride or acid tricarboxylic acid anhydride and an aromatic diamine having the formula ##STR24## wherein R l , R 2 and R 3 each independently is hydrogen, halogen or unsubstituted or substituted hydrocarbyl, X l and X 2 each independently is substituted or unsubstituted branched, linear or cyclic alkylene or alkenylene of 1 to about 30 carbon atoms, --S--, or --O-- with the proviso that X 1 and X 2 are not both concurrently --S-- or --O--. n, n' and n" each independently is an integer of 1 to 4.
Claim 2
Dependent Claim
121 words
A thermoplastic polyimide, poly(amide-imide), poly(esterimide) polyamide acid, poly(amide-amide acid) or poly(esteramide acid) composition which contains at least about 10 mole percent of the reaction product of an aromatic or aliphatic tetracarboxylic dianhydride or acid tricarboxylic acid anhydride and an aromatic diamine having the formula ##STR24## wherein R l , R 2 and R 3 each independently is hydrogen, halogen or unsubstituted or substituted hydrocarbyl, X l and X 2 each independently is substituted or unsubstituted branched, linear or cyclic alkylene or alkenylene of 1 to about 30 carbon atoms, --S--, or --O-- with the proviso that X 1 and X 2 are not both concurrently --S-- or --O--. n, n' and n" each independently is an integer of 1 to 4.
Claim 3
Dependent Claim
81 words
The composition of claim 1 which contains at least about 10 mole percent of a residue of the formula ##STR25## or mixtures thereof, and at least about 10 mole percent of a residue having the formula ##STR26## or mixtures thereof, wherein A is a tetravalent radical derived from a substituted or unsubstituted aromatic or aliphatic dianhydride and A' is a trivalent radical derived from a substituted or unsubstituted atomatic or aliphatic acid anhydride, and R is an alkylene or arylene radical.
Claim 4
Dependent Claim
77 words
The composition of claim 2 wherein the composition has recurring structural units of the general formulae: ##STR27## or mixtures thereof, wherein k, k', k", k"', k"" and k""' are positive integers of one or more and represent the number of different polymer blocks in said polymer; and r, r', r", r"', r"" and r""' are the same or different integers greater than 1 and represent the number of times the units are repeated in the polymer chain.
Claim 5
Dependent Claim
17 words
The composition of claim 3 comprising a polyimide having recurring structural units of the general formula ##STR28##
Claim 6
Dependent Claim
100 words
The composition of claim 4 which contains up to about 90 mole percent intercondensed structural units of the formula ##STR29## wherein B is a divalent radical derived from a diamine having the general formula H 2 N--B--NH 2 , wherein B is an aliphatic or cycloaliphatic group of 2 to about 20 carbon atoms, heterocyclic group of 6 to about 20 carbon atoms, polyoxyalkylene group of from 4 to about 500 carbon atoms, aromatic group of 6 to about 40 carbon atoms, or is derived from a bis(aminofunctional) polysiloxane or combinations thereof; and s is an integer greater than 1.
Claim 7
Dependent Claim
116 words
The composition of claim 3 wherein A is a tetravalent benzene or naphthalene nucleus or a substituted tetravalent group of formula ##STR30## wherein m is 0 or 1; E is ##STR31## where R is substituted or unsubstituted linear or branched alkylene or arylene of 1 to 30 carbon atoms, ##STR32## or substituted or unsubstituted linear, branched, or-cyclic, alkylene of 1 to about 30 carbon atoms, or alkenylene of 2 to about 30 carbon atoms; G is phenylene or a substituted or unsubstituted group of formula ##STR33## X 3 and X 4 each independently is ##STR34## substituted linear or branched, alkylene of 1 to about 30 carbon atoms or alkenylene of 2 to about 30 carbon atoms.
Claim 8
Dependent Claim
62 words
The composition according to claim 5 where in B is substituted or unsubstituted phenylene, diphenylene, naphthylene or a group of the formula ##STR35## wherein m is 0 or 1; E' is ##STR36## or substituted or unsubstitiuted branched or linear alkylene of 1 to about 30 carbon atoms; and G' is substituted or unsubstituted phenylene or a group of the formula --(E").sub.m --.
Claim 9
Dependent Claim
68 words
The composition of claim 5 wherein the bis(amino-functional)polysiloxane has the formula ##STR37## wherein Q is a substituted or unsubstituted aromatic group; Z is ##STR38## D is substituted or unsubstituted hydrocarbylene; R 6 , R 7 , R 8 , R 9 , R 1- and R ll each independently is substituted or unsubstituted hydrocarbyl; and h, i and j each independently has a value of 0 to 100.
Claim 10
Dependent Claim
20 words
The composition of claim 1 wherein said composition contains between about 15 to 85 mole percent of said reaction product.
Claim 11
Dependent Claim
104 words
The composition of claim 1 wherein X l and X 2 each is a divalent group of the formula ##STR39## wherein and R 4 and R 5 each independently is hydrogen, substituted or unsubstituted alkyl having up to asbout 12 carbon atoms, substituted or unsubstituted alkenyl having 2 to about 12 carbon atoms, substituted or unsubstituted cycloalkyl of 4 to about 12 carbon atoms, substituted or unsubstituted carbocyclic aromatic or heterocyclic aromatic having 5 to about 24 carbon atoms, or mixtures thereof, with the proviso that X 1 and X 2 do not both concurrently have both R 4 and R 5 as hydrogen.
Claim 12
Dependent Claim
48 words
The composition of claim 10 in which R 4 and R 5 each independently is substituted or unsubstituted alkyl of 1 to 8 carbon atoms, substituted or unsubstituted alkenyl of 2 to 8 carbon atoms, substituted or unsubstituted cycloalkyl of 4 to 8 carbon atoms or mixtures thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-20 | 1991-01-19 | 1991-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-20 | 1995-01-19 | 1995-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-20 | 1999-01-19 | 1999-07-21 | $7700.00 | Window Closed / Lapsed |