Waterproofing of leather and furs

Claim 1

A COMPOSITION OF WATERPROOFING LEATHER AND FURS CONSISTING ESSENTIALLY OF A SOLUTION OF 1 TO 25% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PARTIAL ESTER AND PARTIAL AMIDES OF A POLYCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC POLYCARBOXYLIC ACIDS HAVING 3 TO 10 CARBON ATOMS AND 2 TO 4 CARBOXYLIC ACID GROUPS, AMINO ALIPHATIC POLYCARBOXYLIC ACIDS HAVING 4 TO 10 CARBON ATOMS AND 2 TO 4 CARBOXYLIC ACID GROUPS AND PHENYL POLYCARBOXYLIC ACIDS AND HYDROXYPHENYL POLYCARBOXYLIC ACIDS HAVING 2 TO 6 CARBOXYLIC ACID GROUPS, AND HAVING AT LEAST ONE FREE CARBOXY GROUP, AND PARTIAL ESTERS AND PARTIAL ETHER OF POLYALCOHOLS HAVING 2 TO 10 CARBON ATOMS AND HAVING AT LEAST TWO FREE HYDROXY GROUPS, SAID COMPOUND HAVING AT LEAST ONE UNSATURATED ALIPHATIC RADICAL OF 8 TO 22 CARBON ATOMS IN SAID PARTIAL ESTER, AMIDE AND ETHER MOIETIES, AND 0.5 TO 5.0% OF A CATIONIC-ACTIVE, COMPLEX SALT OF A POLYVALENT METAL ALCOHOLATE AND AN ACID ESTER OF A PHOSPHORIC ACID IN AN ORGANIC SOLVENT.