US3839207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allyl 2-carbamoyalkylphosphonates flame retardants
Assignee: Stauffer Chemical Co
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Filing: 1973-06-27
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Granted: 1974-10-01
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Expires: 1993-06-27
Abstract
Abstract WHERE R is a hydrogen or methyl radical, whereupon the phosphonate is cured by free radical initiation so as to form an insoluble, fire retardant resinous finish. The present invention provides a process for flame retarding textiles, paper and other flammable, solid substrates by applying to the substrate at least one allyl 2-carbamoylalkylphosphonate corresponding to the formulae:
Inventors
- 👤 E Weil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/34; C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6515; C07F9/6521; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65742; C07F9/65746; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5373; C09; C09D; C09D5/00; C09D5/18; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; D06M14/00; D21H17/00; D21H17/03; D21H17/05; D21H17/10; D21H5/00; D21H5/0002; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
12 words
A FLAME RETARDANT POLYMER OF AN ALLYL 2-CARBAMOYLALKYLPHOSPHONATE CORRESPONDING TO THE FORMULAE:
Claim 2
Dependent Claim
12 words
A FLAME RETARDANT POLYMER OF AN ALLYL 2-CARBAMOYLALKYLPHOSPHONATE CORRESPONDING TO THE FORMULAE:
Claim 3
Dependent Claim
25 words
The polymer of claim 20, wherein said allyl 2-carbamoylalkylphosphonate is selected from the group consisting of diallyl 2-carbamoylethylphosphonate, diallyl 2-carbamoylisopropylphosphonate, N,N''-methylenebis(diallyl 2-carbamoylethylphosponate) and N,N''-methylenebis(diallyl 2-carbamoylisopropylphosphonate).
Claim 4
Dependent Claim
54 words
The polymer of claim 1 wherein at least one other comonomer is present in the polymer, said comonomer being selected from the group consisting of amide nitrogen-containing monomers, monomers containing more than one polymerizable double bond, and monomers which contribute to flame retardancy and which have phosphorus, bromine or chlorine atoms in their molecules.
Claim 5
Dependent Claim
7 words
The allyl 2-carbamoylalkylphosphonates corresponding to the formula:
Claim 6
Dependent Claim
7 words
The allyl 2-carbamoylalkylphosphonates corresponding to the formula:
Claim 7
Dependent Claim
2 words
The compound
Claim 8
Dependent Claim
2 words
The compound
Claim 9
Dependent Claim
2 words
The compound
Claim 10
Dependent Claim
2 words
The compound
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |