One component (1K) composition based on epoxy resin

A one-component (1K) composition comprising, based on the weight of the composition:

• from 40 to 98 wt. % of a) at least one epoxy resin;
• from 0.5 to 30 wt. % of b) at least one organoboron compound selected from tetrasubstituted borate salts of monovalent cations of tertiary amines;
• wherein the at least one organoboron compound is represented by general Formula (VI) below:
• wherein:
• R10 is selected from the group consisting of H, C1-C6 alkyl, C6-C18 aryl, C7-C24 aralkyl, C3-C18 cycloalkyl and C2-C20 alkenyl;
• R6, R7, R8 and R9 are independently selected from the group consisting of C1-C6 alkyl, C6-C18 aryl and C7-C24 alkylaryl;
• and,
• n is an integer of from 1 to 3;
• and,
• from 5 to 15 wt. % of c) at least one (meth)acrylamide monomer of Formula (VII):
• wherein:
• Ra is H or Me;
• G is selected from the group consisting of —NH2, —NHRb and —N(Rb)(Rc);
• Rb and Rc are independently selected from the group consisting of C1-C18 alkyl, C1-C18 hydroxyalkyl, C1-C18 alkalkoxy, C6-C18 aryl and —(CH2)n —N(Rd)(Re);
• n is an integer of from 1 to 4;
• and,
• Rd and Re are independently selected from the group consisting of H and C1-C6 alkyl,
• wherein the composition is capable of cure within 15 min at 150° C. while showing no marked increase in viscosity when stored at room temperature for 7 days.