Claims
- 1. Process for the flameproofing of organic fibre materials, which comprises applying an aqueous preparation to these materials which contains at least
- 1. a polycondensation product of hydroxymethyl phosphonium compounds, wherein said product is made by condensing at least one anhydrous tetrakis-(hydroxymethyl)-phosphonium salt or tetrakis-(hydroxymethyl)-phosphonium hydroxide with itself in an anhydrous medium at 100.degree. to 150.degree. C until 0.5 to 1.5 mols of water have been eliminated per 1 mol of hydroxymethylphosphonium starting material and
- 2. an aminoplast precursor or aminoplast precondensate, and that the materials thus treated are dried and subjected to a heat treatment.
- 2. Process according to claim 1, which comprises using a methylolurea or a methylolmelamine as component 2).
- 3. Process according to claim 1, which comprises flameproofing fibre material of polyamides, cellulose, cellulosepolyester or polyester.
- 4. Process according to claim 3, which comprises flameproofing fabrics of wool or polyester or mixed fabrics of polyester-cellulose.
- 5. Process according to claim 1, which comprises drying the fibre material at temperatures of up to 100.degree. C and subjecting to a heat treatment above 100.degree. C.
- 6. The organic fibre materials provided with a flameproof finish according to the process of claim 1.
Priority Claims (2)
Number |
Date |
Country |
Kind |
11101/70 |
Jul 1970 |
CH |
|
850/71 |
Jan 1971 |
CH |
|
Parent Case Info
This is a divisional of application Ser. No. 399,576, filed on Sept. 21, 1973, U.S. Pat. No. 3,907,898, which is a continuation of application Ser. No. 164,054, filed on July 19, 1971, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3221057 |
Gordon et al. |
Nov 1965 |
|
3236676 |
Coates et al. |
Feb 1966 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
399576 |
Sep 1973 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
164054 |
Jul 1971 |
|