US2861901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bromine containing nitrilo methylol-phosphorus polymers
Assignee: Individual
•
Filing: 1954-11-09
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Granted: 1958-11-25
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Expires: 1974-11-09
Abstract
No abstract record available.
Inventors
- 👤 Wilson A Reeves
- 👤 Carl Hamalainen
- 👤 John D Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:19
CPC Classifications
B; B44; B44F; B44F11/00; B44F11/02; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C07F9/5407; C08; C08F; C08F30/00; C08F30/02; C08G; C08G79/00; C08G79/02; C08G79/025; C08G79/06; D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/285; D06M13/288; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/431; D06M15/667; D06M15/673; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
A FABRIC FLAMMABILITY REDUCING AGENT WHICH COMPRISES AN AQUEOUS COMPOSITION OBTAINED BY HEATING A MIXTURE OF FORMALDEHYDE AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIALLYLMELAMINE AND ACRYLAMIDE, THEN ADDING A BROMINATING AGENT SELECTED FROM THE GROUP CONSISTING OF BROMINE AND BROMOFORM AND A FREE RADICAL REACTION INITIATING CATALYST, FURTHER HEATING THE MIXTURE, AND THEN ADDING AN AQUEOUS SOLUTION CONTAINING AN ORGANIC TRIVALENT NITROGEN-CONTAINING COMPOUND AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIS(HYDROXYMETHYL) PHOSPHINE OXIDE AND TETRAKIS (HYDROXYMETHYL) PHOSPHONIUM CHLORIDE.
Claim 2
Dependent Claim
44 words
A PROCESS FOR PRODUCING A FLAME-RETARDANT COMPOSITION OF MATTER WHICH COMPRISES HEATING AN AQUEOUS MIXTURE OF DIALLYLMELAMINE, FORMALDEHYDE, AND AN EMULSIFYING AGENT, THEN ADDING BROMOFORM AND A CATALYTIC AMOUNT OF POTASSIUM PERSULFATE, AND THEN CONTINUING THE HEATING UNTIL A STABLE AQUEOUS EMULSION IS PRODUCED.
Claim 3
Dependent Claim
37 words
A METHOD FOR FLAMEPROOFING A FABRIC WHICH COMPRISES IMPREGNATING SAID FABRIC WITH THE AQUEOUS EMULSION OBTAINED BY THE PROCESS OF CLAIM 9, DRYING THE IMPREGNATED FABRIC, AND THEN INSOLUBILZING THE IMPREGNANT IN SITU AT AN ELEVATED TEMPERATURE.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |