公开(公告)号：US20220025220A1

公开(公告)日：2022-01-27

申请号：US17380432

申请日：2021-07-20

Applicant: TESA SE

Inventor： Katja MEYER ,  Tim BAUMANN ,  Christoph NAGEL

IPC: C09J7/29 ,  C09J7/38 ,  C09J5/00 ,  B32B7/12 ,  B32B37/12 ,  B32B5/02 ,  B32B5/18 ,  B32B5/24 ,  B32B15/14 ,  B32B27/40 ,  B32B27/12

Abstract: The present invention relates to a diecut especially for the permanent closing of holes especially in metal sheets or in plastics parts, having a carrier composed of an assembly, more particularly laminate in the specified layer sequence, of optionally at least one first layer, which is formed by a metallic layer having a thickness of 10 to 40 μm, optionally at least one second layer, which is formed by a woven glass fabric or laid glass fabric having a basis weight of 30 to 200 g/m2, optionally at least one third layer, which is formed by a first pressure-sensitive adhesive having a basis weight of 70 to 200 g/m2, at least one fourth layer, which is formed by a flame-retardant foam having a thickness of at least 0.5 to 2.5 mm, and at least one fifth layer, which is formed by a second, acrylate-based pressure-sensitive adhesive having a basis weight of 300 to 1800 g/m2, preferably 360 to 1500 g/m2 and/or a thickness of 400 to 1800 μm, preferably 800 to 1500 μm.

公开(公告)号：US20250083410A1

公开(公告)日：2025-03-13

申请号：US18292536

申请日：2022-07-21

Applicant: TESA SE

Inventor： Katja MEYER ,  Tim BAUMANN ,  Christoph NAGEL

IPC: B32B5/26 ,  B32B5/02 ,  B32B7/12 ,  B32B15/14 ,  B32B15/20 ,  B32B17/02

Abstract: Punched articles permanently close holes in metal sheets or in plastic parts and comprise a carrier made of a composite laminate composed of at least one first layer formed by a needle-punched nonwoven and containing polyacrylonitrile fibers, optionally at least one second layer formed by a first pressure-sensitive adhesive compound, at least one third layer formed by a glass woven fabric or glass laid fabric with a weight per unit of area of 30 to 200 g/m2, optionally at least one fourth layer formed by a second pressure-sensitive adhesive compound, at least one fifth layer formed by a metal layer, and at least one sixth layer formed by an acrylate-based pressure-sensitive adhesive compound with a weight per unit area of 300 to 1800 g/m2.

公开(公告)号：US20220105708A1

公开(公告)日：2022-04-07

申请号：US17449177

申请日：2021-09-28

Applicant: tesa SE

Inventor： Katja MEYER ,  Tim BAUMANN ,  Christoph NAGEL

IPC: B32B15/14 ,  B32B7/12 ,  B32B5/02 ,  B32B9/04 ,  B32B15/20

Abstract: Diecuts and methods for closing of holes in metal sheets or in plastics parts are disclosed. The diecuts have a carrier composed of an assembly that comprises a metallic first layer having a thickness of 10 to 40 μm, a second layer of a woven or laid glass fabric having a basis weight of 30 to 200 g/m2, an optional first adhesive third layer, an unexpanded expandable graphite fourth layer having a thickness of at least 0.2 to 3.0 mm, and a second adhesive fifth layer. The expandable graphite being present in the fourth layer to an extent of at least 80 wt % and fifth layer being formed by an adhesive having a basis weight of 300 to 1800 g/m2 and/or a thickness of 400 to 1800 μm.