Self-healing laminate composition, related articles and related methods

A self-healing laminate composition comprising:

• a first layer comprising a self-healing polymer;
• and
• a second layer adjacent to the first layer and comprising a polymer comprising (A) at least one of the crosslinked polymer and the functional thermoset polymer, and (B) a crosslinked backbone comprising:
• (i) first crosslinked backbone segments having a structure corresponding to at least one of a urethane reaction product and a urea reaction product from at least one second polyisocyanate;
• (ii) second crosslinked backbone segments having a structure corresponding to a urethane reaction product from at least one second polyol;
• (iii) optionally third crosslinked backbone segments having a structure corresponding to at least one of a urethane reaction product and a urea reaction product from at least one second reversible polyfunctional linker comprising at least one of a hindered secondary amino group and an aromatic hydroxy group;
• (iv) first linking groups linking the first crosslinked backbone segments and the second crosslinked backbone segments, the first linking groups corresponding to a urethane reaction product of the second polyisocyanate and the second polyol;
• and
• (v) optionally second linking groups reversibly linking the first crosslinked backbone segments and the third crosslinked backbone segments, the second linking groups comprising at least one of (A) a reversible urea reaction product between the second polyisocyanate and the hindered secondary amino group of the reversible polyfunctional linker and (B) a reversible urethane reaction product between the second polyisocyanate and the aromatic hydroxy group of the reversible polyfunctional linker;
• wherein the self-healing polymer comprises backbone segments comprising reversible linking groups selected from the group consisting of non-covalent interactions, coatings with trapped unreacted reagents, dynamic covalent bonds, thermoreversible bonds, mechanically reversible bonds, UV-triggerable reversible bonds, and combinations thereof.