Process of reacting reduced keratin with cross-linking polyimides or polyamides and chemically modified keratin containing the aforesaid crosslinkages
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1. A METHOD OF CHEMICALLY MODIFYING A KERATINOUS MATERIAL WHICH COMPRISES REACTING THE KERATINOUS MATERIAL WITH AN AGENT CAPABLE OF REDUCING DISULPHIDES AND WITH A COMPOUND CONTAINING AT LEAST TWO ACYL-NITROGEN GROUPS, EACH ACYL RADICAL CONTAINING AN OLEFINIC LINKAGE BETWEEN TWO CARBON ATOMS, AT LEAST ONE OF THESE CARBON ATOMS BEING DIRECTLY LINKED TO A NON-OXO CARBONYL GROUP OF THE SAID ACYL-NITROGEN GROUPS.
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1. A METHOD OF CHEMICALLY MODIFYING A KERATINOUS MATERIAL WHICH COMPRISES REACTING THE KERATINOUS MATERIAL WITH AN AGENT CAPABLE OF REDUCING DISULPHIDES AND WITH A COMPOUND CONTAINING AT LEAST TWO ACYL-NITROGEN GROUPS, EACH ACYL RADICAL CONTAINING AN OLEFINIC LINKAGE BETWEEN TWO CARBON ATOMS, AT LEAST ONE OF THESE CARBON ATOMS BEING DIRECTLY LINKED TO A NON-OXO CARBONYL GROUP OF THE SAID ACYL-NITROGEN GROUPS.
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