Patent US5602205A successfully refreshed from Google Patents.
US5602205A
Expired / Lapsed
US
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N-(substituted) maleimides and compositions incorporating the same
Assignee: Cytec Technology Corp
•
Filing: 1995-04-27
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Granted: 1997-02-11
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Expires: 2015-04-27
Abstract
Abstract Novel polyfunctional maleimides as well as novel compositions based on mono- and polyfunctional maleimides are provided. Also provided are heat resistance resin compositions and curable compositions incorporating the same. The monofunctional maleimide is N-(2,3-dimethylphenyl)maleimide, and the polyfunctional maleimides are bis- and higher functional variations thereof.
Inventors
- 👤 Balwant Singh
- 👤 Robert J. Tynik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:30
CPC Classifications
C; C08; C08L; C08L35/00; C08L35/06; C08L51/00; C08L51/04; C08L2201/00; C08L2201/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
33 words
A polyfunctional maleimide of the general formula ##STR3## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 2
Dependent Claim
33 words
A polyfunctional maleimide of the general formula ##STR3## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 3
Dependent Claim
23 words
The polyfunctional maleimide of claim 1, wherein n is 0, 1 or 2, and the alkylene group of Z is a methylene group.
Claim 4
Dependent Claim
10 words
The polyfunctional maleimide of claim 2, wherein n is 0.
Claim 5
Dependent Claim
9 words
The polyfunctional maleimide of claim 3, which is 4,4'-methylenebis(1-maleimido-2,3-dimethylbenzene).
Claim 6
Dependent Claim
40 words
A curable composition comprising, as a component, a polyfunctional maleimide of the general formula ##STR4## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 7
Dependent Claim
40 words
A curable composition comprising, as a component, a polyfunctional maleimide of the general formula ##STR4## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 8
Dependent Claim
22 words
The curable composition of claim 5, wherein n is 0, 1 or2, and the alkylene group of Z is a methylene group.
Claim 9
Dependent Claim
10 words
The curable composition of claim 6, wherein n is 0.
Claim 10
Dependent Claim
12 words
The curable composition of claim 7, wherein the polyfunctional maleimide is 4,4'-methylenebis(1-maleimido-2,3-dimethylbenzene).
Claim 11
Dependent Claim
40 words
The curable rubber composition comprising, as crosslinker, a polyfunctional maleimide of the general formula ##STR5## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 12
Dependent Claim
40 words
The curable rubber composition comprising, as crosslinker, a polyfunctional maleimide of the general formula ##STR5## wherein n is 0 or larger; and Z is selected from an alkylene group, an alkyl substituted alkylene group and a dialkyl substituted alkylene group.
Claim 13
Dependent Claim
24 words
The curable rubber composition of claim 9, wherein n is 0, 1 or 2, and the alkylene group of Z is a methylene group.
Claim 14
Dependent Claim
11 words
The curable rubber composition of claim 10, wherein n is 0.
Claim 15
Dependent Claim
13 words
The curable rubber composition of claim 11, wherein the polyfunctional maleimide is 4,4'-methylenebis(1-maleimido-2,3-dimethylbenzene).
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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) | 2000-02-11 | 2000-08-12 | 2001-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-11 | 2004-08-12 | 2005-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-11 | 2008-08-12 | 2009-02-11 | $7700.00 | Window Closed / Lapsed |