One-component or two-component reactive adhesive
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsCarsten Friese, Frank Bergmann, Thomas Huver
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Abstract
A reaction adhesive becomes porous after hardening. This allows both small and larger gaps to be sealed between the bonded substrates, as the liquid adhesive has a low to medium viscosity and the hardened glue shows a marked volume increase. Reaction adhesives based on (meth)acrylates and that contain azo-bis-isobutyronitrile as initiator and expanding agent are preferably used. The disclosed reaction adhesive is preferably used for gluing reactive coils.
Claims30
A reactive adhesive that becomes porous on heating, which comprises:
- at least one reactant selected from the group consisting of acrylates, methacylates and mixtures thereof;
- and
- at least one blowing agent.
A cured reactive adhesive of 1, wherein said cured adhesive has a porosity of at least 3% by volume.
Dependencies are inferred from the claim text.