US3862129A
Expired / Lapsed
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Novel haloaromatic etheramines
Assignee: Lyondell Chemical Technology LP
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Filing: 1973-01-12
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Granted: 1975-01-21
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Expires: 1993-01-12
Abstract
Abstract Novel haloaromatic etheramines have been synthesized from halogenated benzene and polyphenyls and alkali metal salts of phenol-formaldehyde-anilineresins. The resultant etheramines are epoxy curing agents and intermediates for the preparation of thermosetting imides.
Inventors
- 👤 George T Kwiatkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:55
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; C07D207/452; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08L; C08L63/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
9 words
Imide claimed in claim 1 wherein E is chlorine.
Claim 2
Dependent Claim
15 words
Imide claimed in claim 2 wherein m and n each has a value of 2.
Claim 3
Dependent Claim
14 words
Imide claimed in claim 2 wherein m and n each has a value of
Claim 4
Dependent Claim
15 words
Imide claimed in claim 2 wherein m and n each has a value of 0.
Claim 5
Dependent Claim
13 words
Imide claimed in claim 2 wherein each of R'' and R'''' is hydrogen.
Claim 6
Dependent Claim
13 words
Imide claimed in claim 2 wherein each of R'' and R'''' is methyl.
Claim 7
Dependent Claim
13 words
Imide claimed in claim 1 wherein each of R'' and R'''' is chlorine.
Claim 8
Dependent Claim
12 words
Imide claimed in claim 1 wherein a has a value of 1.
References Cited (Backward Citations)
US3306852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |