Latently reactive adhesive film
AssigneeTesa SE
InventorMarco KUPSKY
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Abstract
The invention relates to a thermally curable adhesive film comprising at least one layer of an adhesive comprising at least one epoxy-functionalized (co)polymer (A) having a weight-average molar mass in the range from 5000 g/mol to 5 000 000 g/mol and/or at least one epoxy-containing compound (B) different from the (co)polymer (A); at least one free-radical former (C); and at least one photoacid former (D). The invention further relates to a bond comprising two substrates that are bonded by the adhesive film or the adhesive of the present invention, and to a method of joining two substrates using the adhesive film or the adhesive of the present invention.
Claims13
A thermally curable adhesive film comprising at least one layer of an adhesive which comprises
- at least one (co)polymer (A) functionalized with epoxide groups and having a weight-average molar mass in the range from 5 000 g/mol to 5 000 000 g/mol and/or at least one epoxide-containing compound (B) which is different from the (co)polymer (A);
- at least one radical initiator (C);
- at least one photo acid generator (D);
- optionally at least one matrix polymer as film former (E);
- and
- optionally at least one additive (F).
Dependencies are inferred from the claim text.