3m Innovative Properties Company

Elisabeth Cura

Sohaib Elgimiabi

Adrian T Jung

Boris Tasch

Kanta Kumar

Michael A Semonick

Kotaro Shinozaki

Dirk Hasenberg

Saori Ueda

Olaf Ludewig

Stefan B M Luebbe

Bernhard H Koch

Nurettin Yavuz

Stefan Luebbe

Marcin J Paprocki

Pawel M Malinowski

Tomasz P Wikierak

Marcin Józef Paprocki

Tomasz Wikierak

Pawel Marcin Malinowski

The present disclosure relates to a process of manufacturing curable precursor of a structural adhesive composition. According to another aspect, the present disclosure is directed to method of bonding two parts.

Process of manufacturing a curable precursor of a structural adhesive composition

An adhesive film liner comprising (a) a polymeric layer having a first and a second surface, the second surface being opposed to the first surface; (b) a first release layer located on top of the first surface of the polymeric layer, the first release layer comprising at least one polyurethane acrylate oligomer and/or at least one polyurethane methacrylate oligomer; and (c) a second release layer located on top of the second surface layer of the polymeric layer, the second release layer comprising at least one acrylate polymer.

Both sides coated automotive paint compatible liner for structural adhesive film

An expandable structural adhesive film for bonding metal parts. The adhesive film comprises at least one first epoxy compound; at least one epoxy curing agent; at least one blowing agent; at least one film-forming agent; and at least one impact modifier. The structural adhesive film exhibits an elongation at break of at least 300% according to tensile test DIN EN ISO 527 and a free expansion rate according to EN 2667-3 of at least 45%.

Expandable structural adhesive film for dissimilar metal bonding

The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a) a cationically self-polymerizable monomer; b) a polymerization initiator of the cationically self-polymerizable monomer which is initiated at a temperature T1; c) a curable monomer which is different from the cationically self-polymerizable monomer; and d) a curing initiator of the curable monomer which is initiated at a temperature T2 and which is different from the polymerization initiator of the cationically self-polymerizable monomer. According to another aspect, the present disclosure is directed to a partially cured precursor of a structural adhesive composition. According to still another aspect, the present disclosure relates to a method of bonding to parts. In yet another aspect, the disclosure relates to the use of a curable precursor or a partially cured precursor as described above, for industrial applications, in particular for body-in-white bonding applications for the automotive industry.

Curable precursor of a structural adhesive composition

The present disclosure relates to a thermosettable structural adhesive composition comprising an epoxy compound; a thermoplastic compound; an epoxy curing agent; at least one mineral filler, wherein the at least one mineral filler is capable of absorbing water. The thermosettable structural adhesive composition can exhibit an improved corrosion resistance while also providing good adhesive properties such as good t-peel strength and overlap shear strength.

Structural adhesive with improved corrosion resistance

The invention relates to the use of a structural adhesive film for bonding and sealing a hem flange connection between panels. The structural adhesive film comprises at least one adhesive layer and at least one layer with a porous structure. The adhesive layer comprise an epoxy compound as well as an epoxy curing agent.

Multilayer structural adhesive film

A roll of a double-sided adhesive tape wound around a core, with the tape () comprising first () and second major adhesive surfaces () and at least one adhesive layer comprising a structural adhesive () providing the second major adhesive surface (). The first major adhesive surface () is protected by a first liner (); the second major adhesive surface () is protected by a second liner (), and the second liner () extends over the two edges () of the second major surface to cover at least part of each first and second minor surfaces () of the tape ().

Roll of an adhesive tape having an adhesive layer comprising a structural adhesive and its method of manufacture

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Dusseldorf, Germany

Elisabeth Cura