US3870771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialkyl alkyl and aromatic sulfonamidomethyl phosphonates
Assignee: Occidental Chemical Corp
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Filing: 1972-03-30
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Granted: 1975-03-11
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Expires: 1992-03-30
Abstract
Abstract New compounds are disclosed of the formula: WHEREIN R is selected from the group consisting of lower alkyl of 1-6 carbon atoms, phenyl and alkyl substituted phenyl and R'' is selected from the group consisting of phenyl, lower alkenyl and halogen substituted and unsubstituted lower alkyl of 1-6 carbon atoms. The compounds of this invention are useful as flame retarding agents for textile materials and in the production of polymers and copolymers which possess flame retardant properties.
Inventors
- 👤 Peter Golborn
- 👤 James J Duffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5353; C08K5/5373
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
A compound of the formula
Claim 4
Dependent Claim
5 words
A compound of the formula
Claim 5
Dependent Claim
8 words
A compound of claim 1 of the formula
Claim 6
Dependent Claim
8 words
A compound of claim 1 of the formula
Claim 7
Dependent Claim
8 words
A compound of claim 1 of the formula
Claim 8
Dependent Claim
8 words
A compound of claim 1 of the formula
References Cited (Backward Citations)
US2635112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |