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US 4,306,928 AGranted
Process for making adhesive tape
OwnerTokujiro Okuiinventor
Life of this patent
Estimating the term…
Abstract
A rolled strip of adhesive mounted on a reel is unrolled and punched with a cutter pressed against it or by passing between a punching roll and a receiving roll, the punched part being affixed to a band-shaped film of paper or plastic. The film having had a part of the punched adhesive pasted on it is wound up on a winding reel and the punched excess adhesive is wound up on another winding reel.
Claims5
A process for making a tape for applying adhesive units to a substrate comprising:
- providing a peeling sheet coated with a release agent and on one surface having a continuous layer of adhesive with two side edges,
- cutting a series of shaped units in the layer of adhesive without cutting the peeling sheet and without the cut ever reaching both side edges, thereby dividing the adhesive layer into said series of units and a continuous remainder portion,
- peeling said portion from the peeling sheet leaving the series of units bonded to the peeling sheet.
Dependencies are inferred from the claim text.