US4135028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fireproofing synthetic fiber materials with sulphonamides
Assignee: BASF Corp
•
Filing: 1977-06-20
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Granted: 1979-01-16
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Expires: 1997-06-20
Abstract
Abstract A process for fireproofing polyester fibers in which a sulphonamide of the formula ##STR1## in which R is an aromatic, cycloaliphatic or aliphatic radical or hydrogen and in which the ring A is unsubstituted or further substituted or in which a hydrazonium or ammonium salt of such a sulphonamide is applied to the fiber material which is then dried and subjected to a heat treatment. The sulphonamide may also be applied in the presence of a dispersant, a protective colloid and/or water. The composition of matter for performing this process is also provided.
Inventors
- 👤 Armin Hiestand
- 👤 Peter Rohringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:03
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/438; C; C09; C09K; C09K21/00; C09K21/06; C09K21/10; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2721; Y10T442/2861
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
A process for fireproofing fiber materials made from polyester, which comprises treating these materials with a preparation containing a sulphonamide of the formula ##STR28## wherein R 1 is phenyl, phenylethyl, benzyl or cyclohexyl, alkyl with 1 to 8 carbon atoms which is unsubstituted or substituted by hydroxyl, ethoxy or methoxy, or hydrogen, or R 1 is a radical of the formula ##STR29## wherein X is ethylidene or methylene, and if R 1 is hydrogen the sulphonamide can also be present in the form of a hydrazonium methylammonium, dimethylammonium, ethylammonium or unsubstituted ammonium salt; and drying the material treated in this manner at 70° to 100° C., and subsequently subjecting it to a thermosol treatment at 150° to 220° C.
Claim 2
Dependent Claim
119 words
A process for fireproofing fiber materials made from polyester, which comprises treating these materials with a preparation containing a sulphonamide of the formula ##STR28## wherein R 1 is phenyl, phenylethyl, benzyl or cyclohexyl, alkyl with 1 to 8 carbon atoms which is unsubstituted or substituted by hydroxyl, ethoxy or methoxy, or hydrogen, or R 1 is a radical of the formula ##STR29## wherein X is ethylidene or methylene, and if R 1 is hydrogen the sulphonamide can also be present in the form of a hydrazonium methylammonium, dimethylammonium, ethylammonium or unsubstituted ammonium salt; and drying the material treated in this manner at 70° to 100° C., and subsequently subjecting it to a thermosol treatment at 150° to 220° C.
Claim 3
Dependent Claim
59 words
A process according to claim 1, in which there is used a sulphonamide on the formula ##STR30## wherein R 7 is phenyl, benzyl, phenylethyl or cyclohexyl, alkyl with 1 to 4 carbon atoms, or hydrogen,; and if R 7 is hydrogen the sulphonamide can be present also in the form of a methylammonium, dimethylammonium, ethylammonium or unsubstituted ammonium salt.
Claim 4
Dependent Claim
54 words
A process according to claim 1, in which there is used a sulphonamide of the formula ##STR31## wherein R 9 is phenyl, benzyl or hydrogen; and if R 9 is hydrogen the sulphonamide can be present also in the form of a methylammonium salt, dimethylammonium salt or ethylammonium salt, or as unsubstituted ammonium salt.
Claim 5
Dependent Claim
16 words
A process according to claim 1, in which the compound of the formula ##STR32## is used.
Claim 6
Dependent Claim
20 words
A process according to claim 1, wherein the sulphonamide of the formula (1), wherein R 1 is phenyl is used.
Claim 7
Dependent Claim
18 words
A process according to claim 1, wherein the sulphonamide is used in the form of the ammonium salt.
Claim 8
Dependent Claim
40 words
A process according to claim 1, in which the fiber materials are treated with an aqueous preparation which contains, in addition to the sulphonamide, a dispersing agent, said dispersing agent is added only when said sulphonamide is not a salt.
Claim 9
Dependent Claim
31 words
A process according to claim 7, in which the fiber materials are treated with an aqueous preparation which contains, in addition to the sulphonamide, a dispersing agent and a protective colloid.
Claim 10
Dependent Claim
36 words
A process according to claim 8, in which the aqueous preparation contains per kg 50 to 700 g of the sulphonamide, 0.2 to 200 g of dispersing agent and 0 to 30 g of protective colloid.
Claim 11
Dependent Claim
29 words
A process according to claim 1, wherein the sulphonamide which is not a salt is present in powder form and has a mean particle diameter of 1 to 30μ.
Claim 12
Dependent Claim
22 words
A process according to claim 1, in which the fiber material is treated by the padding method or by the exhaust method.
Claim 13
Dependent Claim
21 words
The fiber material made from polyester bearing thereon a flameproofing finish which is obtained by the process according to claim 1.
References Cited (Backward Citations)
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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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |