Patent ID: 7892396

Claim:
A method of sealing, baffling or reinforcing a portion of an automotive vehicle, the method comprising: forming a tack-free activatable material, the activatable material formed by: a. feeding one or more components into a rotating container, including: i) an epoxy resin; ii) at least about 13% to about 30% by weight epoxy/elastomer adduct, the adduct including about 1:3 to 3:1 parts of epoxy to elastomer and being solid at a temperature of 23° C.; iii) at least about 10% to about 30% by weight core/shell polymer impact modifier that comprises a core portion including a butadiene styrene copolymer and a shell portion polymerized from methyl methacrylate, wherein the shell portion is grafted onto and encapsulates the core portion and the core portion has a glass transition temperature of at least about 10° C. below a glass transition temperature of the shell portion; and b. heating the components to a temperature so that the components are softened or liquidized to induce the components into a mixable state; c. intermixing the mixed components with one or more additional solid components including one or more curing agents and one or more liquid components including one or more liquid epoxy resins; locating the activatable material upon or adjacent a surface of a member of the automotive vehicle; activating the activatable material to bond the activatable material to the surface of the member of the vehicle, wherein the glass transition temperature of the core portion is less than about 23° C. and the glass transition temperature of the shell portion is at least about 23° C.