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US 7,244,793 B2Granted
Adhesive compositions
AssigneeIllinois Tool Works Inc.
InventorsWen-Feng Liu, Barbara Bucquet, Barbara Chabut
Life of this patent
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Abstract
Adhesive compositions comprising epoxy resins, including epoxy novalac resin, and at least one reactive multi-functional acrylate. In preferred embodiments, the compositions also include amine-curing agent having at least one a cyclic group. The adhesive compositions according to the present invention are capable of enhancing the bonding strength of the adhesive, particularly at relatively high temperatures, such as at about 80° C.
Claims19
A curable adhesive composition for anchoring materials in or to concrete or masonry comprising:
- a. at least one polymerizable epoxy compound;
- b. a reactive diluent reactive with said polymerizable epoxy compound;
- c. from greater than about 8 wt % to 20 wt % of reactive multifunctional acrylate accelerator, said accelerator comprising at least one acrylate that is at least tri-functional acrylate and at least one tetra functional;
- and
- d. curing agent;
- wherein the composition has a no-torque pull out performance at 24 hours at about room temperature of at least about 50 KN.
3 more elements
Dependencies are inferred from the claim text.