Two part polyurea-urethane adhesive with elevated high temperature storage modulus

A two-part polyurea-urethane adhesive composition comprising

• a) a Part A prepolymer component having an isocyanate content of about 82 equivalent percent to about 95 equivalent percent comprising
• i. an isocyanate component comprising polymeric isocyanate and having an oligomer content greater than 15 weight percent by weight of the isocyanate component:
• ii. polyol having a molecular weight of about 5,000 to about 12,000;
• and
• iii. about 20 percent to about 44 percent filler by weight of the composition
• b) a Part B curative component comprising
• i. a low molecular weight hydroxyl compound having a functionality of about 2 and a molecular weight from about 32 to about 600 and a high molecular weight hydroxyl compound having a functionality of about 2 to 5 and a molecular weight of about 5,000 to about 18,0001
• ii. at least one aromatic amine;
• iii. about 20 percent to about 44 percent filler by weight of the composition;
• and
• iv. at least one catalyst
• wherein the adhesive has an 85° C. storage modulus greater than about 20 MPa.