Redox curable compositions and methods of manufacture thereof
AssigneeHenkel AG & Co. KGaA
InventorsNigel Sweeney, Mark Loane, Brendan Kneafsey, Rory Barnes
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Abstract
A redox curable composition, methods for manufacturing same and uses thereof are disclosed. The redox curable composition is useful as a pre-applied adhesive. The redox curable composition is solid at room temperature, may be heated for application to a substrate, and cools to form a dry-to-touch adhesive layer on said substrate, which may be activated when required by mating with another substrate and exposure to an anaerobic environment. The composition is particularly suited to manufacturing complex products, such as mobile phones, computers and circuits.
Claims24
A redox curable composition comprising:
- a liquid (meth)acrylate monomer component;
- a solid thermoplastic polyurethane resin having a molecular weight in the range of from 40,000 g/mol to 100,000 g/mol and a melting point in the range of from to 80° C.;
- a solid curable polyurethane (meth)acrylate resin having a molecular weight in the range of from 5,000 g/mol to 35,000 g/mol, and a melting point in the range of from 50° C. to 80° C.;
- and
- a curing component for curing the liquid (meth)acrylate monomer component.
Dependencies are inferred from the claim text.