Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1985-07-19
1987-10-20
Schofer, Joseph L.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
428 99, 428100, 428338, 383 63, 383 65, B65D 3316, B65D 3324
Patent
active
047013583
ABSTRACT:
An improved cast process and apparatus for fusing closure elements, particularly those with thickened bases, to separately extruded film or sheet stock for making containers with integral reclosable closures. The process is applicable to webs of film which contain more than one pair of closure elements. The web is split immediately adjacent the die exit between adjacent pairs of closure elements to achieve a film having essentially erect closure elements and associated ribs should they be included. The process also permits beaded edges along both sides of the film. Improved containers can thus be produced.
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Behr Raymond D.
Zieke Larry M.
Hessenaur, Jr. L. E.
Schofer Joseph L.
Teskin F. M.
The Dow Chemical Company
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