| 摘要 |
<p>A polyamide melt adhesive having a melt viscosity, measured at 220 DEG C., of 25-600 Pas and adaptable for the adhesion of textiles, said polyamide comprising A. 1. DIMERIZED FATTY ACID HAVING A CONTENT OF 70-100 PERCENT BY WEIGHT OF DIMERIC FATTY ACID, AND OPTIONALLY COMPRISING 2. A MONOCARBOXYLIC ACID AS A MOLECULAR-WEIGHT REGULATOR (CHAIN STOPPER), WHEREBY UP TO 50 EQUIVALENT PERCENT OF THE TOTAL CARBOXY GROUPS OF THE MIXTURE (A) (1) AND (2) CAN BE DERIVED FROM THE MONOCARBOXYLIC ACID; AND COMPRISING B. ONE OR MORE ALIPHATIC STRAIGHT CHAIN CO-DICARBOXYLIC ACIDS HAVING 6-13 CARBON ATOMS, WHEREIN THE RATIO OF CARBOXYLIC ACIDS ACCORDING TO (A) (1) AND (2) TO CARBOXYLIC ACID ACCORDING TO (B) IS FROM 0.05:1 TO 5:1, CALCULATED ON THE CARBOXY GROUPS; AND FURTHER COMPRISING IN AN AMOUNT APPROXIMATELY EQUIVALENT TO THE ACIDS MENTIONED UNDER (A) AND (B) ABOVE C. AN ALIPHATIC STRAIGHT CHAIN DIPRIMARY DIAMINE HAVING 6-12 CARBON ATOMS, AND D. CAPROLACTAM AND/OR epsilon -AMINOCAPROIC ACID, WHEREIN FROM 0.5 TO 1.5 MOLS OF CAPROLACTAM AND/OR epsilon -AMINOCAPROIC ACID ARE EMPLOYED PER MOL OF CARBOXY GROUPS OF THE ACIDS MENTIONED UNDER (A) AND (B) ABOVE.</p> |
