In-mold coating crosslinkers, compositions, systems, processes and articles

A multifunctional crosslinker of Formula 1:

• wherein:
• R1 comprises a first isocyanate functional group,
• R2 comprises a second isocyanate functional group, and
• R3 comprises a strained cyclic olefin moiety.

A method of manufacturing an in-mold coated article, the method comprising:

• providing a mold having a prepared mold surface;
• contacting the prepared mold surface with one or more in-mold coating compositions, thereby providing a coated mold surface having one or more layers of coating material;
• and
• contacting the coated mold surface with a polymerizable cyclic olefin material to form a cycloolefin polymer layer through a polymerization reaction,
• wherein at least one of the one or more in-mold coating compositions is an in-mold multifunctional composition, the in-mold multifunctional composition comprising:
• a plurality of polyol molecules;
• a urethane formation catalyst;
• and
• a multifunctional crosslinker comprising a structure of Formula 1:
• wherein:
• R1 comprises a first isocyanate functional group,
• R2 comprises a second isocyanate functional group, and
• R3 comprises a strained cyclic olefin moiety;
• and
• wherein the in-mold multifunctional composition forms an in-mold multifunctional layer that adheres to the cycloolefin polymer layer to form an in-mold coated article.

A process for producing a crosslinked polyol, the process comprising:

• providing a first component and a second component,
• the first component comprising a plurality of polyol molecules, and
• the second component comprising a plurality of multifunctional crosslinkers,
• the plurality of multifunctional crosslinkers comprising a multifunctional crosslinker comprising a structure of Formula 1:
• wherein:
• R1 comprises a first isocyanate functional group,
• R2 comprises a second isocyanate functional group, and
• R3 comprises a strained cyclic olefin moiety;
• and
• mixing the first component and the second component in the presence of a urethane formation catalyst to provide a reaction product, the reaction product comprising the crosslinked polyol.