US3856535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsifiable haloalkyl phosphate blend for aqueous textile flame-retardant treatments
Assignee: Zeneca Inc
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Filing: 1973-12-06
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Granted: 1974-12-24
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Expires: 1993-12-06
Abstract
Abstract A textile flame retarding treating agent blend useful in making stable aqueous emulsions is presented which consists of a flame retarding agent having the general formula (XH2C-CHXCH2O)3-PO and (XH2C-CH(CH2X)O)3-PO where X is Cl or Br and 5 - 20 percent by weight of the agent of an alkoxylated fatty acid ester emulsifier having an HLB of 14.5 - 18.7.
Inventors
- 👤 C Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:28
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/292; C; C09; C09K; C09K21/00; C09K21/06; C09K21/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A TEXTILE FLAME RETARDING TREATING AGENT BLEND USEFUL IN MAKING STABLE AQUEOUS EMULSIONS CONSISTING ESSENTIALLY OF: A. A FLAME REATRDING AGENT HAVING THE GENERAL FORMULA (XH2C-CHXCH2O)3-PO AND (XH2C-CH(H2X)O)3-PO WHEREIN X IS CHLORINE OR BROMINE, AND B. 5-20 PERCENT BY WEIGHT OF SAID FLAME RETARDING AGENT OF AN EMULSIFIER HAVING AN HLB OF 14.5 - 18.7 WHICH COMPRISES ETHOXYLATED OR PROPOXYLATED FATTY ACID ESTERS OF GLYCEROL HAVING A HIGH AVERAGE MOLECULAR WEIGHT OF 6.500 -14,000 AND UP TO 150 PERCENT BY WEIGHT OF SAID HIGH MOLECULAR WEIGHT FATTY ACID ESTER OF A LOW MOLECULAR WEIGHT FATTY ACID ESTER OF GLYCEROL, SORBITOL, OT SORBITAN AND ETHOXYLATED OR PROPOXYLATED FATTY ACID ESTERS OF GLYCEROL, SORBITOL, OR SORBITAN HAVING A MOLECULAR WEIGHT IN THE RANGE OF 1,000 - 6,500 AND WHEREIN SAID FATTY ACID MOIETY IN SAID ESTERS HAVE 10 - 22 CARBON ATOMS.
Claim 2
Dependent Claim
140 words
A TEXTILE FLAME RETARDING TREATING AGENT BLEND USEFUL IN MAKING STABLE AQUEOUS EMULSIONS CONSISTING ESSENTIALLY OF: A. A FLAME REATRDING AGENT HAVING THE GENERAL FORMULA (XH2C-CHXCH2O)3-PO AND (XH2C-CH(H2X)O)3-PO WHEREIN X IS CHLORINE OR BROMINE, AND B. 5-20 PERCENT BY WEIGHT OF SAID FLAME RETARDING AGENT OF AN EMULSIFIER HAVING AN HLB OF 14.5 - 18.7 WHICH COMPRISES ETHOXYLATED OR PROPOXYLATED FATTY ACID ESTERS OF GLYCEROL HAVING A HIGH AVERAGE MOLECULAR WEIGHT OF 6.500 -14,000 AND UP TO 150 PERCENT BY WEIGHT OF SAID HIGH MOLECULAR WEIGHT FATTY ACID ESTER OF A LOW MOLECULAR WEIGHT FATTY ACID ESTER OF GLYCEROL, SORBITOL, OT SORBITAN AND ETHOXYLATED OR PROPOXYLATED FATTY ACID ESTERS OF GLYCEROL, SORBITOL, OR SORBITAN HAVING A MOLECULAR WEIGHT IN THE RANGE OF 1,000 - 6,500 AND WHEREIN SAID FATTY ACID MOIETY IN SAID ESTERS HAVE 10 - 22 CARBON ATOMS.
Claim 3
Dependent Claim
31 words
A blend of claim 1 wherein said high molecular weight fatty acid ester is made by reacting 100 - 300 mols of propylene or ethylene oxide per mol of glycerol ester.
Claim 4
Dependent Claim
12 words
A blend of claim 2 wherein said glyceryl ester is castor oil.
Claim 5
Dependent Claim
35 words
A blend of claim 1 wherein said low molecular weight fatty acid ester of ethoxylated or propoxylated glycerol or sorbitol is made by reacting 5 - 50 mols of alkylene oxide per mol of polyol.
Claim 6
Dependent Claim
18 words
A blend of claim 4 wherein said low molecular weight fatty acid ester is glyceryl or sorbitan trioleate.
Claim 7
Dependent Claim
14 words
A composition of claim 3 wherein said high molecular weight ester is polyethoxy(200)castor oil.
Claim 8
Dependent Claim
29 words
A blend of claim 5 having 40 - 70 percent polyethoxy(200)castor oil as a high molecular weight fatty acid ester and 30 - 60 percent by weight polyethoxy(20)sorbitan trioleate.
Claim 9
Dependent Claim
45 words
A composition of claim 6 wherein said flame retarding agent is tris(2,3-dibromopropyl)phosphate, said emulsifier is a blend containing 60 percent by weight polyethoxy(200)castor oil and 40 percent by weight polyethoxy(20)sorbitan trioleate wherein said blend has an average HLB in the range of 15.0 - 15.8.
Claim 10
Dependent Claim
14 words
An aqueous composition of a blend of claim 1 containing 5 -99 percent water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |