US4052487A
Expired / Lapsed
US
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Diol-phosphonates
Assignee: Societe Nationale des Poudres et Explosifs
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Filing: 1975-04-22
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Granted: 1977-10-04
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Expires: 1995-04-22
Abstract
Abstract The novel diol-phosphonates of the formula: ##STR1## in which R 1 is alkyl with 1 to 4 carbon atoms, R 2 is hydrogen, methyl, or ethyl, and A is --CH 2 --CH 2 --CH 2 --, or ##STR2## are useful as flameproofing additives in polyurethane foams.
Inventors
- 👤 Georges L. Sturtz
- 👤 Serge L. Lecolier
- 👤 Jean-Claude Clement
- 👤 Jean Marie Biehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:25
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C08G2110/00; C08G2110/0025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
39 words
A compound of the formula: ##STR75## in which R 1 is an alkyl group with 1 to 4 carbon atoms, R 2 is hydrogen, methyl, or ethyl, and A is --CH 2 --CH 2 --CH 2 --, or ##STR76##
Claim 2
Dependent Claim
39 words
A compound of the formula: ##STR75## in which R 1 is an alkyl group with 1 to 4 carbon atoms, R 2 is hydrogen, methyl, or ethyl, and A is --CH 2 --CH 2 --CH 2 --, or ##STR76##
Claim 3
Dependent Claim
10 words
A compound according to claim 1 which is diethyl 3-[bis-(2-hydroxy-ethyl)-amino]-propyl-phosphonate.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 which is diethyl 2-[bis-(2-hydroxy-ethyl)-amino]-2-methyl-ethylphosphonate.
Claim 5
Dependent Claim
11 words
A compound according to claim 1 which is diethyl 3-[bis-(2-hydroxy-propyl)-amino] propyl-phosphonate.
Claim 6
Dependent Claim
10 words
A compound according to claim 1 which is diisopropyl 3-[bis-(2-hydroxy-ethyl)-amino]-propyl-phosphonate.
Claim 7
Dependent Claim
10 words
A compound according to claim 1 which is diisopropyl 3-[bis-(2-hydroxy-propyl)-amino]-propyl-phosphonate.
References Cited (Backward Citations)
US3076010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |