Patent ID: 8585861

Claim:
A one-component structural adhesive, comprising: A) from 5 to 30 weight percent of one or more rubber-modified epoxy resins, in which at least a portion of the rubber has a glass transition temperature of −40° C. or lower; and B) from 5 to 25 parts by weight, per 100 parts by weight of the rubber component of the rubber-modified epoxy resin(s), of one or more bisphenol compounds, wherein component B) is pre-reacted with all or a portion of component A) to form an advanced rubber-modified epoxy resin or is present in the form of finely divided particles, the structural adhesive further comprising: C) at least 8 weight percent of a reactive toughener; and D) one or more epoxy curing agents; wherein the total rubber content is from 8 to 15 weight percent of the structural adhesive and the structural adhesive is curable at a temperature of 80° C. or higher.