A process for the manufacture of a semicrystalline functionalized olefin copolymer composition comprising the steps of: a) copolymerizing at least one olefin monomer and at least one masked functionalized olefin monomer in the presence of a catalyst system, wherein the olefin monomer is represented by CH 2 =CHR 1, wherein R 1 is an alkyl group having 1 to 6 carbon atoms, wherein the masked functionalized olefin monomer is a reaction product of a functionalized olefin monomer represented by the structure according to Formula and a masking agent: wherein R 2, R 3, and R 4 are each independently selected from the group consisting of H and hydrocarbyl with 1 to 16 carbon atoms, wherein R 5 -[X-(R 6) n] m is a polar functional group containing one or multiple heteroatom containing functionalities X-(R 6) n wherein X is selected from -O-, -S- or -CO 2 - and R 6 is H, and n is 1, or X is N and R 6 is each independently selected from the group consisting of H and a hydrocarbyl group with 1 to 16 carbon atoms, and n is 2, wherein R 5 is either -C(R 7a)(R 7b)- or a plurality of -C(R 7a)(R 7b)- groups, wherein R 7a, and R 7b are each independently selected from the group consisting of H or hydrocarbyl with 1 to 16 carbon atoms and R 5 comprises 1 to 10 carbon atoms, wherein R 3 and R 5 may together form a ring structure that is functionalized with one or multiple X-(R 6) n, where X is attached to either the main chain or side chain of R 5, where m is an entire number between 1 and 10, preferably 1 or 2, and b) treating the product obtained by step a) with a Bronsted acid solution, optionally containing metal salts or ammonium salts, capable to abstract the residue derived from the masking agent from the functionalized olefin copolymer, and combining the obtained semi-crystalline functionalized olefin copolymer with a cross-linking enhancing agent selected from the group consisting of polyols, polyamines, polyacids, polyethers, polyesters, polycarbonates, polyamides, polyurethanes, polyureas, polysaccharides, polypeptides and combinations of at least two of said cross-linking enhancing agents, wherein said cross-linking enhancing agent has at least two functionalities a) copolymerizing at least one olefin monomer and at least one masked functionalized olefin monomer in the presence of a catalyst system, wherein the olefin monomer is represented by CH 2 =CHR 1, wherein R 1 is an alkyl group having 1 to 6 carbon atoms, wherein the masked functionalized olefin monomer is a reaction product of a functionalized olefin monomer represented by the structure according to Formula and a masking agent: wherein R 2, R 3, and R 4 are each independently selected from the group consisting of H and hydrocarbyl with 1 to 16 carbon atoms, wherein R 5 -[X-(R 6) n] m is a polar functional group containing one or multiple heteroatom containing functionalities X-(R 6) n wherein X is selected from -O-, -S- or -CO 2 - and R 6 is H, and n is 1, or X is N and R 6 is each independently selected from the group consisting of H and a hydrocarbyl group with 1 to 16 carbon atoms, and n is 2, wherein R 5 is either -C(R 7a)(R 7b)- or a plurality of -C(R 7a)(R 7b)- groups, wherein R 7a, and R 7b are each independently selected from the group consisting of H or hydrocarbyl with 1 to 16 carbon atoms and R 5 comprises 1 to 10 carbon atoms, wherein R 3 and R 5 may together form a ring structure that is functionalized with one or multiple X-(R 6) n, where X is attached to either the main chain or side chain of R 5, where m is an entire number between 1 and 10, preferably 1 or 2, and wherein the olefin monomer is represented by CH 2 =CHR 1, wherein R 1 is an alkyl group having 1 to 6 carbon atoms, wherein the masked functionalized olefin monomer is a reaction product of a functionalized olefin monomer represented by the structure according to Formula and a masking agent: wherein R 2, R 3, and R 4 are each independently selected from the group consisting of H and hydrocarbyl with 1 to 16 carbon atoms, wherein R 5 -[X-(R 6) n] m is a polar functional group containing one or multiple heteroatom containing functionalities X-(R 6) n wherein X is selected from -O-, -S- or -CO 2 - and R 6 is H, and n is 1, or X is N and R 6 is each independently selected from the group consisting of H and a hydrocarbyl group with 1 to 16 carbon atoms, and n is 2, wherein R 5 is either -C(R 7a)(R 7b)- or a plurality of -C(R 7a)(R 7b)- groups, wherein R 7a, and R 7b are each independently selected from the group consisting of H or hydrocarbyl with 1 to 16 carbon atoms and R 5 comprises 1 to 10 carbon atoms, wherein R 3 and R 5 may together form a ring structure that is functionalized with one or multiple X-(R 6) n, where X is attached to either the main chain or side chain of R 5, where m is an entire number between 1 and 10, preferably 1 or 2, and b) treating the product obtained by step a) with a Bronsted acid solution, optionally containing metal salts or ammonium salts, capable to abstract the residue derived from the masking agent from the functionalized olefin copolymer, and combining the obtained semi-crystalline functionalized olefin copolymer with a cross-linking enhancing agent selected from the group consisting of polyols, polyamines, polyacids, polyethers, polyesters, polycarbonates, polyamides, polyurethanes, polyureas, polysaccharides, polypeptides and combinations of at least two of said cross-linking enhancing agents, wherein said cross-linking enhancing agent has at least two functionalities