US3762865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retarding of solid substrates with allyl 2-carbamoylalkylphosphonates
Assignee: Stauffer Chemical Co
•
Filing: 1971-04-30
•
Granted: 1973-10-02
•
Expires: 1991-04-30
Abstract
Abstract 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: 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.
Inventors
- 👤 E Weil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:42
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; D21H17/07; D21H17/10; D21H5/00; D21H5/0002
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
28 words
The process of claim 1, wherein said phosphonate is applied to said substrate in a concentration of about 5-40 percent calculated on the dry weight of said substrate.
Claim 2
Dependent Claim
26 words
The process of claim 1, wherein the curing of said phosphonate is effected in the presence of an effective amount of a free radical initiating catalyst.
Claim 3
Dependent Claim
22 words
The process of claim 1, wherein the curing of said phosphonate is effected by exposure to an effective amount of actinic radiation.
Claim 4
Dependent Claim
23 words
The process of claim 4, wherein the curing of said phosphonate is effected by exposure to an effective amount of electron beam radiation.
Claim 5
Dependent Claim
32 words
The process of claim 1, wherein the curing of said phosphonate is effected by exposure to an effective amount of actinic radiation while in the presence of a free radical initiating catalyst.
Claim 6
Dependent Claim
20 words
The process of claim 1, wherein at least one optional comonomer is applied to the substrate along with said phosphonate.
Claim 7
Dependent Claim
22 words
The process of claim 1, wherein said allyl 2-carba-moylalkylphosphonate is selected from the group consisting of N, N''-methylenebis(diallyl 2-carbamoylethylphosphonate) and N,N''-methylenebis(diallyl 2-carbamoylisopropylphosphonate).
Claim 8
Dependent Claim
20 words
The process of claim 1, wherein said phosphonate is applied to said substrate in the form of an aqueous solution.
Claim 9
Dependent Claim
21 words
The process of claim 1, wherein said phosphonate is applied to said substrate in the form of an organic solvent solution.
Claim 10
Dependent Claim
11 words
The process of claim 1, wherein said substrate is a textile.
Claim 11
Dependent Claim
10 words
The process of claim 1, wherein said substrate is paper.
Claim 12
Dependent Claim
27 words
A flame retardant composition, comprising a solid substrate whose having present thereon and/or therein a cured, fire retardant resin of an allyl 2-carbamoylalkylphosphonate corresponding to the formula:
Claim 13
Dependent Claim
19 words
The composition of claim 13, wherein said phosphonate is selected from the group consisting of N,N''-methylenebis-(diallyl 2-carbamoylethylphosphonate) and N,N''-methylenebis(diallyl-2-carbamoylisopropylphosphonate).
Claim 14
Dependent Claim
11 words
The composition of claim 13, wherein said substrate is a textile.
Claim 15
Dependent Claim
10 words
The composition of claim 13, wherein said substrate is paper.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |