US4336362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetylene-terminated dianil monomer and the polymer therefrom
Assignee: United States Department of the Navy
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Filing: 1981-03-02
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Granted: 1982-06-22
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Expires: 2001-03-02
Abstract
Abstract A compound with the formula: <IMAGE> wherein R is selected from the class consisting of H-, F-, Cl-, CH3-nFn, and CH3-nCln and n is an integer from 1 to 3 and the polymer resulting therefrom by heating at a temperature from about the melting point to about 300 DEG C. The polymer is suitable as a high-temperature structural material and a semiconductor material.
Inventors
- 👤 Theodore R. Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:37
CPC Classifications
C; C08; C08F; C08F38/00; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
51 words
The polymer obtained by heating from about the melting point to about 300° C. the compound with the formula ##STR4## wherein R is selected from the class consisting of H--, F--, Cl-- CH 3-n F n , and CH 3-n Cl n and n is an integer from 1 to 3.
Claim 2
Dependent Claim
51 words
The polymer obtained by heating from about the melting point to about 300° C. the compound with the formula ##STR4## wherein R is selected from the class consisting of H--, F--, Cl-- CH 3-n F n , and CH 3-n Cl n and n is an integer from 1 to 3.
Claim 3
Dependent Claim
13 words
The polymer of claim 1 wherein R is --F or --CF 3 .
Claim 4
Dependent Claim
13 words
The polymer of claim 1 wherein R is --Cl or --CCl 3 .
Claim 5
Dependent Claim
9 words
The polymer of claim 1 wherein R is --H.
Claim 6
Dependent Claim
15 words
The polymer of claim 4 wherein the imine groups are attached para to each other.
Claim 7
Dependent Claim
16 words
The polymer of claim 1 wherein the acetylene groups are attached meta to the imine groups.
References Cited (Backward Citations)
US4218555A
Cited
US4283557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |