PROCESS FOR PREPARING FILAMENTS FROM POLY-BETA-LACTAMS
United States Patent 3492390
US Patent References:
Synthetic fiber
- - 2130948
Manufacture of artificial filaments, films, and like materials
- - 2360406
Polyamides from beta-amino carboxylic acids
- - 3093618
Process for the manufacture of spinning solutions of poly-beta-lactams by dissolving in an alcoholic solution of calcium thiocyanate
- - 3231539
Spinning filaments from solution in concentrated sulfuric acid of a polyamide and salt
- - 3269970
Synthetic fiber
- - 2130948
Manufacture of artificial filaments, films, and like materials
- - 2360406
Polyamides from beta-amino carboxylic acids
- - 3093618
Process for the manufacture of spinning solutions of poly-beta-lactams by dissolving in an alcoholic solution of calcium thiocyanate
- - 3231539
Spinning filaments from solution in concentrated sulfuric acid of a polyamide and salt
- - 3269970
Inventors:
Borner, Karl
Publication Date:
01/27/1970
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Assignee:
HOECHST AG
Primary Class:
Other Classes:
264/203
International Classes:
D01F6/60; D01F7/00
US Patent References:
| 3360503 | Process for preparing poly(alpha, alpha-disubstituted beta-lactams) |
Foreign References:
| BE640198A |