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US4268450A
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Energetic hydroxy-terminated azido polymer
Assignee: Boeing North American Inc
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Filing: 1979-01-08
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Granted: 1981-05-19
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Expires: 1999-01-08
Abstract
Abstract An energetic binder comprises a hydroxy-terminated aliphatic polymer having pendant alkyl azide groups and method for producing same.
Inventors
- 👤 Milton B. Frankel
- 👤 Joseph E. Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:36
CPC Classifications
C; C07; C07C; C07C247/00; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G65/223; C08G65/32; C08G65/321; C08G65/325
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
62 words
A hydroxy-terminated aliphatic polyether having pendant alkyl azide groups has a general structural formula of: ##STR5## wherein x is an integer from 10 to 60 and wherein R is selected from the group consisting of --(CH 2 ) n N 3 , and --CH 2 CHN 3 CH 2 N 3 , and wherein n is an integer from 1 to 5.
Claim 2
Dependent Claim
62 words
A hydroxy-terminated aliphatic polyether having pendant alkyl azide groups has a general structural formula of: ##STR5## wherein x is an integer from 10 to 60 and wherein R is selected from the group consisting of --(CH 2 ) n N 3 , and --CH 2 CHN 3 CH 2 N 3 , and wherein n is an integer from 1 to 5.
Claim 3
Dependent Claim
22 words
The hydroxy-terminated aliphatic polyether of claim 1 having a structural formula of: ##STR6## wherein x is an integer from 10 to 60.
Claim 4
Dependent Claim
18 words
The hydroxy-terminated aliphatic polyether of claims 1 or 2 wherein x is an integer from 20 to 40.
Claim 5
Dependent Claim
75 words
A process for producing hydroxy-terminated aliphatic polyethers of the general formula ##STR7## by reacting a compound of the general formula ##STR8## with sodium azide in an appropriate polar organic solvent wherein x is an integer from 10 to 60 and wherein R is selected from the group consisting of --(CH 2 ) n N 3 and --CH 2 CHN 3 CH 2 N 3 , and wherein n is an integer from 1 to 5.
Claim 6
Dependent Claim
75 words
A process for producing hydroxy-terminated aliphatic polyethers of the general formula ##STR7## by reacting a compound of the general formula ##STR8## with sodium azide in an appropriate polar organic solvent wherein x is an integer from 10 to 60 and wherein R is selected from the group consisting of --(CH 2 ) n N 3 and --CH 2 CHN 3 CH 2 N 3 , and wherein n is an integer from 1 to 5.
References Cited (Backward Citations)
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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) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |