Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1986-02-20
1987-06-30
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 91, 15624411, 15624424, 15624425, 15624426, 156498, 156500, 383 63, B29C 4788
Patent
active
046768513
ABSTRACT:
A process and apparatus for producing integral interlocking closure film stock useful in making reclosable containers by extruding a film of molten thermoplastic material onto a casting roll, extruding closure elements to contact and join said film at a point between about one inch and about five inches prior to the tangency line of the film on the periphery of the casting roll, partially cooling the closure elements with liquid coolant starting anywhere within the region between the closure element extrusion exits, and the tangency line of a film of molten thermoplastic material and the periphery of the casting roll, and further cooling the closure elements by directing them past additional cooling assemblies. Stripping means are employed to remove liquid coolant from the cooled integral interlocking closure film stock material produced.
REFERENCES:
patent: 3462332 (1969-08-01), Goto
patent: 4212337 (1980-07-01), Kamp
patent: 4259133 (1981-03-01), Yagi
patent: 4263079 (1981-04-01), Sutrina et al.
patent: 4306924 (1981-12-01), Kamp
patent: 4363345 (1982-12-01), Scheibner
patent: 4428788 (1984-01-01), Kamp
Dorsey Robert T.
Engle James D.
Henderson, deceased William E.
Scheibner Gerald H.
First Brands Corporation
Wamer Gary L.
Weston Caleb
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