Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Extrusion molding
Reexamination Certificate
2006-03-07
2006-03-07
Eashoo, Mark (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Extrusion molding
C264S477000, C264S495000, C264S496000, C264S167000, C264S209600, C264S211000
Reexamination Certificate
active
07008589
ABSTRACT:
A process produces cling-fastener parts with a large number of interlocking members (24) from a formulation encompassing radiation-crosslinkable prepolymers. The prepolymer is molded, cast, and/or compression molded into the shape of a large number of interlocking members (24) together with a cling-fastener base (21), and is then radiation-cured. The apparatus producing the cling fasteners encompasses a feed (32, 10) for the formulation (14) of radiation-crosslinkable, in particular acrylic, prepolymers, at least one shaping roll (11) and one backing roll (12). The shaping roll (11) has a large number of radial cutouts (17). A source of UV radiation (19), or an electron-beam source, provides radiation curing of the molded radiation-curable formulation.
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Binder Kletten-Haftverschluss-Systeme GmbH
Eashoo Mark
Roylance Abrams Berdo & Goodman L.L.P.
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