Perforated adhesive film and its manufacturing process

Details Perforated adhesive film and its manufacturing process Perforated adhesive film and its manufacturing process

2008-03-04

2008-03-04

Zirker, Daniel (Department: 1771)

Stock material or miscellaneous articles

Sheet including cover or casing

Including elements cooperating to form cells

C428S068000, C428S116000, C428S117000, C428S118000, C156S292000, C156S290000, C156S250000

Reexamination Certificate

active

10421671

ABSTRACT:
The invention relates to a perforated adhesive film (16) that will be used to glue a wall on one face of a cellular structure (10) to form a sandwich panel. The adhesive film (16) comprises at least one hole and not more than three holes (18) facing each of the cells (12) of the cellular structure (10). Preferably, the holes (18) are formed by punching an unperforated adhesive film. The holes (18) enable the formation of regular glue dabs on the ends of the partitions (14) separating cells (12) in the cellular structure (10), when the adhesive film (16) is heated before the wall is glued.

REFERENCES:
patent: 3656992 (1972-04-01), Lynam et al.
patent: 4803108 (1989-02-01), Leuchten et al.
patent: 5087500 (1992-02-01), Kasper et al.
patent: 5614283 (1997-03-01), Potnis et al.
patent: 5944935 (1999-08-01), Zukas et al.
patent: 6099683 (2000-08-01), Meier et al.
patent: 2 096535 (1982-10-01), None
patent: 55017506 (1980-02-01), None

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