Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-08-28
2007-08-28
Crispino, Richard (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S470000, C156S555000
Reexamination Certificate
active
10344611
ABSTRACT:
A method is disclosed for producing a multilayer paperboard product, as well as an assembly suited for implementing the method and a paperboard manufactured according to the method, whereby the paperboard is made from at least two, advantageously three layers (4, 5, 6) bonded to each other by gluing, and the material of the middle layer (5) is subjected to mechanical working in a dry state (8) so as to deform the material prior to gluing through pressing thereon desired pattern that is raised from the surface of the material (5). The layers (4, 5, 6) are bonded to each other in a single step (7). The method is capable of providing a strong paperboard that uses less fiber than prior-art paperboards of equal thickness and strength.
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Mattila Jorma
Suksi Hannu
Avenira Oy
Crispino Richard
Kubovcik & Kubovcik
Musser Barbara J.
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