Film-tape-closure device slot cast integrated interlocking struc

Details Film-tape-closure device slot cast integrated interlocking struc Film-tape-closure device slot cast integrated interlocking struc

1982-05-14

1984-01-31

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

383 63, 15624411, 15624425, 156500, 156501, 264177R, 264259, 425111, 425112, 425113, 428172, 428192, B29D 702, B32B 104, B32B 110

Patent

active

044287887

ABSTRACT:
A method and apparatus for extruding a film, a tape and a closure device simultaneously to produce integrated interlocking closure stock comprising (a) extruding a sheet of film onto a rotating casting roll at a rate to provide a high draw-down ratio; (b) extruding a tape to join the film on the casting roll at a rate to provide a medium draw-down ratio; and (c) extruding a closure device onto the tape as it approaches the casting roll at a rate to provide a small draw-down ratio.

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patent: 4306924 (1981-12-01), Kamp
patent: 4341575 (1982-07-01), Herz
patent: 4362198 (1982-12-01), Kamp

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