A composition, its preparation process, and the use of the composition as a waterproofing coat

A two-component composition comprising Component I comprising

• (A) at least one methylene malonate monomer having formula (I)
• wherein, R1 and R2 are in each case independently selected from the group consisting of C1-C30-alkyl, C2-C30-alkenyl, C3-C30-cyclolalkyl, C2-C30-heterocyclyl, C2-C30-heterocyclyl-C1-C30-alkyl, C6-C30-aryl, C6-C30-aryl-C1-C30-alkyl, C2-C30-heteroaryl, C2-C30-heteroaryl-C1-C30-alkyl, C1-C30-alkoxy-C1-C30-alkyl, halo-C1-C30-alkyl, and halo-C3-C30-cyclolalkyl, each of which radicals is optionally substituted, the heteroatom being selected from N, O and S,
• (B) at least one methylene malonate polymer having formula (II):
• wherein, R3 and R4 are in each case independently selected from the group consisting of C1-C30-alkyl, C2-C30-alkenyl, C3-C30-cyclolalkyl, C2-C30-heterocyclyl, C2-C30-heterocyclyl-C1-C30-alkyl, C6-C30-aryl, C6-C30-aryl-C1-C30-alkyl, C2-C30-heteroaryl, C2-C30-heteroaryl-C1-C30-alkyl, C1-C30-alkoxy-C1-C30-alkyl, halo-C1-C30-alkyl, and halo-C3-C30-cyclolalkyl, each of which radicals is optionally substituted, the heteroatom being selected from N, O and S;
• n is an integer from 1 to 20;
• R5, if n=1 is, or if n>1 are in each case independently, selected from the group consisting of C1-C30-alkylene, C2-C30-alkenylene, C2-C30-alkynylene, C6-C30-arylene, C3-C30-cyclolalkylene, C3-C30-cyclolalkenylene, C3-C30-cyclolalkynylene, C2-C30-heterocyclylene, and C2-C30-heteroarylene, each of which radicals is optionally substituted, the heteroatom being selected from N, O and S, wherein R5 is optionally interrupted by a radical selected from N, O and S;
• and
• (C) at least one acidic stabilizer;
• and Component II comprising at least one alkali accelerator,
• wherein, the monomer (A) is in an amount of from 5 to 75 wt. in each case based on the total weight of the monomer (A) and the polymer (B);
• the acidic stabilizer (C) is in an amount of from 0.1 to 500 ppm;
• and
• the component II is in an amount of from 0.01 to 10 wt., in each case based on the total weight of the monomer (A) and the polymer (B).