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US3874911A
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Process for the manufacture of phosphorus-containing condensation products, the products and their use as flameproofing agents
Assignee: Novartis AG
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Filing: 1972-08-31
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Granted: 1975-04-01
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Expires: 1992-08-31
Abstract
Abstract The subject of the invention is a process for the manufacture of water-soluble condensation products of hydroxymethyl-phosphonium compounds and amides or carbamates, characterised in that (a) one mol of a tetrakis-(hydroxymethyl)-phosphonium compound is condensed with (b) 0.02 to I mol, preferably 0.1 to 0.6 mol, of an optionally methylolated compound of the formula R-CONH2 (1) wherein R denotes alkoxy with 1 to 4 carbon atoms, hydroxyalkoxy with 2 to 4 carbon atoms, aminocarbonyl or a radical of the formula (H2N - CO - CH2CH2)2 - Z - CH2CH2 -(1.1) wherein Z represents AT 40* TO 120*C, optionally in the presence of formaldehyde or a formaldehyde-donating agent and optionally in the presence of an inert organic solvent, optionally subsequently further condensed at temperatures of 100* to 150*C, and if appropriate free hydroxyl groups are at least partially etherified with at least one alkanol with 1 to 4 carbon atoms and if appropriate the salts of the condensation products are converted into the corresponding hydroxides. The condensation products are used for flameproofing organic fibre material, especially textiles.
Inventors
- 👤 Hermann Nachbur
- 👤 Arthur Maeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:14
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/547; C07F9/6515; C07F9/6521; C08; C08L; C08L61/00; C08L61/20; C08L61/32; D06M15/39; D06M15/423; D06M15/43; D06M15/431; D06M15/55; D06M15/555; B; B27; B27K; B27K2240/00; B27K2240/30; B27K3/00; B27K3/02; B27K3/15; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
51 words
A PROCESS FOR FLAMEPROOFING MIXED POLYESTER-CELLULOSE FIBER MATERIAL, COMPRISING THE SEQUENTIAL STEPS OF TREATING THE MATERIAL WITH AN AQUEOUS PREPARATION WHICH CONSISTS ESSENTIALLY OF (1) A WATER-SOLUBLE CONDENSATION PRODUCT OBTAINED BY CONDENSING A TETRAKIS-(HYDROXYMETHYL)-PHOSPHONIUM COMPOUND AT 40* TO 120*C WITH 0.02 TO 1.0 MOLAR EQUIVALENT OF A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
51 words
A PROCESS FOR FLAMEPROOFING MIXED POLYESTER-CELLULOSE FIBER MATERIAL, COMPRISING THE SEQUENTIAL STEPS OF TREATING THE MATERIAL WITH AN AQUEOUS PREPARATION WHICH CONSISTS ESSENTIALLY OF (1) A WATER-SOLUBLE CONDENSATION PRODUCT OBTAINED BY CONDENSING A TETRAKIS-(HYDROXYMETHYL)-PHOSPHONIUM COMPOUND AT 40* TO 120*C WITH 0.02 TO 1.0 MOLAR EQUIVALENT OF A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
54 words
The process of claim 1, wherein the tetrakis-(hydroxymethyl)-phosphonium compound is a tetrakis-(hydroxymethyl)-phosphonium salt, the aminoplast precondensate is a methylolmelamine, and the curing step is effected by heating the treated material for about 30 seconds to about 10 minutes, at a temperature in the range of about 100* to 200* C after a drying step.
Claim 4
Dependent Claim
28 words
The process of claim 1, wherein the condensation prOduct is obtained by condensing a tetrakis-(hydroxymethyl)-phosphonium compound with a R-CONH2 compound in the presence of an inert organic solvent.
Claim 5
Dependent Claim
21 words
The process of claim 1, wherein the molar equivalent of the R-CONH2 compound is in the range of 0.1 to 0.6.
Claim 6
Dependent Claim
16 words
The process of claim 1, wherein the tetrakis-(hydroxymethyl)-phosphonium compound is a tetrakis-(hydroxymethyl)-phosphonium salt or tetrakis-(hydroxymethyl)-phosphonium hydroxide.
Claim 7
Dependent Claim
13 words
The process of claim 1, wherein the R-CONH2 is methylolated before the condensation.
Claim 8
Dependent Claim
24 words
The process of claim 1, wherein R is alkoxy with 1 to 4 carbon atoms, hydroxyalkoxy with 2 to 4 carbon atoms or aminocarbonyl.
Claim 9
Dependent Claim
16 words
The process of claim 1, wherein the condensation is carried out in the presence of formaldehyde.
Claim 10
Dependent Claim
23 words
The process of claim 1, wherein the condensation product is at least partially etherified with an alkanol of 1 to 4 carbon atoms.
Claim 11
Dependent Claim
22 words
The process of claim 1, wherein the condensation product is obtained by further condensation at a temperature of 100* to 150* C.
Claim 12
Dependent Claim
14 words
The process of claim 3, wherein the inert organic solvent includes an aromatic hydrocarbon.
Claim 13
Dependent Claim
13 words
The process of claim 5, wherein the tetrakis-(hydroxymethyl)-phosphonium salt is a tetrakis-(hydroxymethyl)-phosphonium halide.
Claim 14
Dependent Claim
14 words
The process of claim 7, wherein the R-CONH2 compound is methylolated before the condensation.
Claim 15
Dependent Claim
13 words
The process of claim 7, wherein R is methoxy, ethoxy, 2-hydroxyethyl or aminocarbonyl.
Claim 16
Dependent Claim
93 words
Mixed polyester-cellulose fiber material which has been provided with a flameproofing finish by a process comprising the sequential steps of treating the material with an aqueous preparation which consists essentially of (1) a water-soluble condensation product obtained by condensing a tetrakis-(hydroxymethyl)-phosphonium compound at 40* to 120* C with 0.02 to 1.0 molar equivalent of a compound of the formula: R-CONH2 wherein R denotes alkoxy with 1 to 4 carbon atoms, hydroxyalkoxy with 2 4 carbon atoms, aminocarbonyl or a radical of the formula (H2N - CO - CH2CH2)2-Z - CH2CH2 -wherein Z represents
Claim 17
Dependent Claim
93 words
Mixed polyester-cellulose fiber material which has been provided with a flameproofing finish by a process comprising the sequential steps of treating the material with an aqueous preparation which consists essentially of (1) a water-soluble condensation product obtained by condensing a tetrakis-(hydroxymethyl)-phosphonium compound at 40* to 120* C with 0.02 to 1.0 molar equivalent of a compound of the formula: R-CONH2 wherein R denotes alkoxy with 1 to 4 carbon atoms, hydroxyalkoxy with 2 4 carbon atoms, aminocarbonyl or a radical of the formula (H2N - CO - CH2CH2)2-Z - CH2CH2 -wherein Z represents
Claim 18
Dependent Claim
57 words
The mixed polyester-cellulose fiber material of claim 15, wherein the tetrakis-(hydroxymethyl)-phosphonium compound is a tetrakis-(hydroxymethyl)-phosphonium salt, the aminoplast precondensate is a methylolmelamine, and the curing step is effected by heating the treated material for about 30 seconds to about 10 minutes, at a temperature in the range of about 100* to 200* C after a drying step.
Claim 19
Dependent Claim
16 words
The mixed polyester-cellulose fiber material of claim 16 wherien R is methoxy, ethoxy, 2-hydroxyethyl or aminocarbonyl.
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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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |