Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2004-09-28
2008-10-07
Tadesse, Yewebdar T (Department: 1792)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S268000, C156S272800, C156S277000
Reexamination Certificate
active
07431790
ABSTRACT:
The laser beam (204) violates the foil layer (203) in an upper part region (203b) whereas this remains intact in a lower part region (203a). During the production of lines of weakening by laser action the degree of foil weakening can be controlled substantially more accurately than in conventional punching and cutting processes to produce lines of weakening. The composite foil (201) is sufficiently tear-resistant during application that it can be dispensed without any problem onto an object to be stuck without tears or any risk of destruction. As soon as the adhesive (202) develops its effect however, the foil structure can no longer be removed without any residue: the violation of the foil layer (203) has the effect that the self-adhesive composite tears off uncontrollably without fail during a manipulation attempt. This thus ensures extremely high security of the foil structure (201) or of a label formed therefrom against undesirable manipulation.
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English Translated Abstract JP-2003-108003A.
European Search Report.
Collard & Roe P.C.
Schreiner Group GmbH & Co. KG
Tadesse Yewebdar T
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