Abstract:
COPOLYMERS HAVING IMPROVED DYEING CHARACTERISTICS ARE PREPARED BY COPOLYMERIZING ACRYLONITRILE WITH THE A-METHYLENE GLUTARIC ACID, ALONE OR IN COMBINATION WITH THE MONOHYDROCARBYL ESTER THEREOF OR WITH THE ESTER ALONE IN SUCH AMOUNTS THAT THE RESULTING COPOLYMER COMPRISES 0.1-10 PERCENT BY WEIGHT OF SAID ACID OR ESTER, OR COMBINATION THEREOF, AND AT LEAST 35 PERCENT BY WEIGHT ACRYLONITRILE.
Abstract:
THERE IS PROVIDED A POLAMIDE COMPOSITION CONTAINING AT LEAST ONE ADDITVE OF LYSINE, A-AMINO-E-CAPROLACTAM, E-N-R-LYSINE (WHEREIN R STANDS FOR A BIVALENT HYDROCARBON-RADICAL), A-N-R-A-AMINO-E-CAPROLACTAM (WHEREIN R STANDS FOR A BIVALENT HYDROCARBON RADICAL), N,N'',-BIS HEXAHYDRO-AZEPIN-2-OXO-3-YL)-R (WHEREIN R STANDS FOR A DIAMINE OR A DIAMIDE) AND 1 N, 3 N, 5 N-TRI(HEXAHYDROAZEPIN-2-OXO-3-YL)-TRIAZLINE-1,3,5 AND A PROCESS FOR PRODUCING THE SAME. PREFERABLEY THE ADDITIVE IS CONTAINED IN THE COMPOSITION IN AMOUNTS OF 0.5 TO 5% BY WEIGHT OF THE POLYAMIDE.THE COMPOSTION IS USEFUL FRO SPINNING INTO FIBERS AND YARNS AND IMPROVES COLOR INTENSITY, MODULUS OF ELASTICITY AND FLAT SPOTTING.