US5189129A
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High temperature polymer from maleimide-acetylene terminated monomers
Assignee: National Aeronautics and Space Administration
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Filing: 1991-12-03
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Granted: 1993-02-23
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Expires: 2011-12-03
Abstract
Abstract Thermally stable, glassy polymeric materials were prepared from maleimideacetylene terminated monomeric materials by several methods. The monomers were heated to self-polymerize. The A-B structure of the monomer allowed it to polymerize with either bismaleimide monomers/oligomers or bis-acetylene monomers/oligomers. Copolymerization can also take place by mixing bismaleimide and bisacetylene monomers/oligomers with the maleimide-acetylene terminated monomers to yield homogenous glassy polymers.
Inventors
- 👤 Margaret K. Gerber
- 👤 Terry L. St. Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:11
CPC Classifications
C; C08; C08F; C08F38/00; C08F290/00; C08F290/02; C08F290/06; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1007; C08G73/101; C08G73/1067; C08G73/1071
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
34 words
A thermally stable, glassy polymer prepared from a monomer composition comprising at least one (l) ethynyl maleimide having the following general primary structural formula: ##STR9## where R, Y, and Z are any aromatic moiety.
Claim 2
Dependent Claim
34 words
A thermally stable, glassy polymer prepared from a monomer composition comprising at least one (l) ethynyl maleimide having the following general primary structural formula: ##STR9## where R, Y, and Z are any aromatic moiety.
Claim 3
Dependent Claim
18 words
A thermally stable, glassy polymer according to claim 1, wherein (I) has the following primary structural formula: ##STR10##
Claim 4
Dependent Claim
19 words
A thermally stable, glassy polymeric material according to claim 1, wherein (I) has the following primary structural formula: ##STR11##
Claim 5
Dependent Claim
17 words
A thermally stable, glassy polymer according to claim 1, wherein (I) has the following structural formula: ##STR12##
Claim 6
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 2, wherein the monomer composition additionally comprises at least one (V) ethynylimide having the following general formula: ##STR13## where Ar is any aromatic moiety.
Claim 7
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 3, wherein the monomer composition additionally comprises at least one (V) ethynylimide having the following general formula: ##STR14## where Ar is any aromatic moiety.
Claim 8
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 4, wherein the monomer composition additionally comprises at least one (V) ethynylimide having the following general formula: ##STR15## where Ar is any aromatic moiety.
Claim 9
Dependent Claim
15 words
A thermally stable, glassy polymer according to claim 5, wherein (V) has the formula: ##STR16##
Claim 10
Dependent Claim
15 words
A thermally stable, glassy polymer according to claim 6, wherein (V) has the formula: ##STR17##
Claim 11
Dependent Claim
15 words
A thermally stable, glassy polymer according to claim 7, wherein (V) has the formula: ##STR18##
Claim 12
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 2, wherein the monomer composition consists of (II).
Claim 13
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 3, wherein the monomer composition consists of (III).
Claim 14
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 4, wherein the monomer composition consists of (IV).
Claim 15
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 2, wherein the monomer composition additionally comprises at least one (VI) bisimide having the general formula: ##STR19## n=1-50 where Ar is any aromatic moiety.
Claim 16
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 3, wherein the monomer composition additionally comprises at least one (VI) bisimide having the general formula: ##STR20## n=1-50 where Ar is any aromatic moiety.
Claim 17
Dependent Claim
32 words
A thermally stable, glassy polymer according to claim 4, wherein the monomer composition additionally comprises at least one (VI) bisimide having the general formula: ##STR21## n=1-50 where Ar is any aromatic moiety.
Claim 18
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 14, wherein (VI) has the following structure: ##STR22##
Claim 19
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 15, wherein (VI) has the following structure: ##STR23##
Claim 20
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 16, wherein (VI) has the following structure: ##STR24##
Claim 21
Dependent Claim
35 words
A thermally stable, glassy polymer according to claim 2, wherein the monomer composition additionally comprises at least one (VII) bisacetylene having the following general formula: HC.tbd.C--(Ar).sub.n --C.tbd.CH (VII) n=1-50 where Ar is any aromatic moiety.
Claim 22
Dependent Claim
35 words
A thermally stable, glassy polymer according to claim 3, wherein the monomer composition additionally comprises at least one (VII) bisacetylene having the following general formula: HC.tbd.C--(Ar).sub.n --C.tbd.CH (VII) n=1-50 where Ar is any aromatic moiety.
Claim 23
Dependent Claim
35 words
A thermally stable, glassy polymer according to claim 4, wherein the monomer composition additionally comprises at least one (VII) bisacetylene having the following general formula: HC.tbd.C--(Ar).sub.n --C.tbd.CH (VII) n=1-50 where Ar is any aromatic moiety.
Claim 24
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 20, wherein (VII) has the following structure: ##STR25##
Claim 25
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 21, wherein (VII) has the following structure: ##STR26##
Claim 26
Dependent Claim
16 words
A thermally stable, glassy polymer according to claim 22, wherein (VII) has the following structure: ##STR27##
Claim 27
Dependent Claim
71 words
A thermally stable, homogenous, glassy polymer prepared from a) an acetylene-maleimide terminated monomer having the following general structural formula: ##STR28## where R, Y, and Z are any aromatic moiety; b) a bismaleimide terminated monomer having the following general structural formula: ##STR29## where n=1-50 and Ar is any aromatic moiety; and c) a bis-acetylene terminated monomer having the following general structural formula: HC.tbd.C--(Ar).sub.n --C.tbd.CH where n=1-50 and Ar is any aromatic moiety.
Claim 28
Dependent Claim
71 words
A thermally stable, homogenous, glassy polymer prepared from a) an acetylene-maleimide terminated monomer having the following general structural formula: ##STR28## where R, Y, and Z are any aromatic moiety; b) a bismaleimide terminated monomer having the following general structural formula: ##STR29## where n=1-50 and Ar is any aromatic moiety; and c) a bis-acetylene terminated monomer having the following general structural formula: HC.tbd.C--(Ar).sub.n --C.tbd.CH where n=1-50 and Ar is any aromatic moiety.
Claim 29
Dependent Claim
21 words
A thermally stable, homogenous, glassy polymer according to claim 26, wherein said acetylene-maleimide terminated monomer has the following primary structure: ##STR30##
Claim 30
Dependent Claim
21 words
A thermally stable, homogenous, glassy polymer according to claim 26, wherein said acetylene-maleimide terminated monomer has the following primary structure: ##STR31##
Claim 31
Dependent Claim
21 words
A thermally stable, homogeneous, glassy polymer according to claim 26, wherein said acetylene-maleimide terminated monomer has the following primary structure: ##STR32##
Claim 32
Dependent Claim
20 words
A thermally stable, homogeneous, glassy polymer according to claim 26, wherein said bismaleimide terminated monomer has the following structure: ##STR33##
Claim 33
Dependent Claim
20 words
A thermally stable, homogenous, glassy polymer according to claim 26, wherein said bis-acetylene terminated monomer has the following structure: ##STR34##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |