Elastomer adhesive with rapid tack development
AssigneeLord Corporation
InventorsJian-Ping Huang, Lauren Lownes
Life of this patent
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Abstract
An adhesive composition having two distinct reaction mechanisms, a first being the reaction between a tri-functional isocyanate and an active hydrogen compound and a second begin the free radical initiation of an acrylic monomer. This adhesive develops tack strength through the first reaction allowing two substrates to remain in position relative to one another while the free radical cure of the acrylic monomer takes place to fully bond the substrates together, for example when adhering a rubber liner to the inside of a metallic tank.
Claims17
An adhesive system comprising two parts, an A-side comprising an acrylate monomer;
- a tertiary amine selected from the group consisting of diisopropanol-p-toluidine, dimethyl aniline, p-halogenated aniline derivatives, and dimethyl-p-toluidine;
- and 2-hydroxyethylmethacrylate phosphate (HEMA-phosphate);
- and a B-side comprising a tri-functional isocyanate and an oxidizer.
Dependencies are inferred from the claim text.