Patent ID: 11939500
Assignee: TESA SE
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A diecut adapted for closing holes in one or more metal sheets and/or one or more plastics parts, the diecut comprising:
a carrier composed of a laminate assembly comprising a layer sequence having:
at least one first layer formed by a metallic layer having a thickness of 10 to 40 μm;
at least one second layer formed by a woven glass fabric or laid glass fabric having a basis weight of 30 to 200 g/m2;
at least one third layer formed by a first pressure-sensitive adhesive having a basis weight of 70 to 200 g/m2;
at least one fourth layer formed by an unexpanded expandable graphite having a thickness of 0.2 to 3.0 mm, wherein expandable graphite is produced from naturally occurring mineral graphite and present in the at least one fourth layer to an extent of at least 80 wt % and an expansion rate of the expandable graphite is 30 to 400 cm3/g; and
at least one fifth layer formed by a second, acrylate-based pressure-sensitive adhesive having a basis weight of 300 to 1800 g/m2 and/or a thickness of 400 to 1800 μm.