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Cross linking of fatty polyamides with ionizing radiation

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1. A METHOD OF CROSS LINKING A FATTY ACID POLYAMIDE HAVING A MELTING POINT BELOW 130*C., SAID FATTY ACID POLYAMIDE BEING SELECTED FROM THE GROUP CONSISTING OF (A) THE SELF CONDENSATION PRODUCT OF AMIDIC FATTY ACIDS, (B) A POLYAMIDE DERIVED FROM THE REACTION OF POLYMERIC FAT ACIDS AND A POLYMINE OF THE FORMULA H2N(R''NH)XH WHERE R'' IS AN ALKYLENE RADICAL HAVING FROM 1 TO 4 CARBON ATOMS AND X IS AN INTEGER FROM 1 TO 6, AND (C) A POLYAMIDE DERIVED FROM THE REACTION OF A POLYAMINE OF THE FORMULA H2N(RNH)ZH WHERE R IS SELECTED FROM THE GROUP CONSISTING OF ARYLENE AND ALKYLENE RADICALS AND Z IA N INTEGER FROM 1 TO 8 AND A FATTY ACID DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF THE EPOXIDIZED FATTY ACIDS AND THE ALKYL ESTERS THEREOF, COMPRISING SUBJECTING SAID FATTY ACID POLYAMIDE TO HIGH ENERGY IONIZING RADIATION IN A DOSAGE OF FROM 10 TO 160 MEGARADS.
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