Oxalate ester - polyamine thermosetting compositions

A two-part reactive composition comprising:

• a) a first part comprising an oxalamido-containing compound and a compound of Formula (IV);
• wherein the oxalamido-containing compound has at least two groups of the formula
• —NR5—(CO)—(CO)—OR4;
• wherein the groups of the formula —NR5—(CO)—(CO)—OR4 are the reaction products of a first amine component with a compound of Formula (IV);
• wherein the first amine component has at least two and at most three primary amino groups, secondary amino groups, or a mixture thereof;
• wherein the oxalamido-containing compound is free of a siloxane segment;
• and
• wherein the compound of Formula (IV) is of the formula:
• R4O—(CO)—(CO)—OR4 (IV),
• wherein each R4 is independently alkyl, substituted alkyl, aralkyl, substituted aralkyl, alkenyl, aryl, or substituted aryl;
• and
• wherein each R5 is independently H, alkyl, substituted alkyl, alkylene, aralkyl, substituted aralkyl, alkenyl, aryl, or substituted aryl;
• and
• b) a second part comprising a second amine component having (i) greater than three primary amino groups, or (ii) at least three primary amino groups and a plurality of secondary amino groups, wherein the second amine component is a polymeric material having a carbon backbone or a polymeric material having a carbon backbone with a plurality of catenated nitrogen atoms.