Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2008-09-16
2008-09-16
Aftergut, Jeff H (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S281000, C156S273300
Reexamination Certificate
active
10958340
ABSTRACT:
In a method of joining two workpieces (10, 16) without extraneous materials to produce a workpiece25which is joined over a joining area (24) which is formed by two fully adjoining surfaces (13, 13′) of the two workpieces (10, 16), with the first workpiece (16) being of plastic and the second workpiece (10) being of a material different from plastic, a strong bond is achieved even when the coefficients of thermal expansion of the workpieces are different by activating at least the surface (13′) of the first workpiece (16) by irradiation with high-energy radiation in a first step, bringing the surfaces (13, 13′) of the workpieces (10, 16) into contact in a second step and pressing the two workpieces (10, 16) against one another at room temperature, in particular at a temperature of from 15° C. to 30° C., to join them at the surfaces (13, 13′).
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Aftergut Jeff H
McNally Daniel
Weidmann Plastics Technology AG
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