Process for the preparation of paper-backed adhesive tapes of the pressure-sensitive type
AssigneesSanyo-Kokusaku Pulp Co., Ltd., Toyo Chemical Co., Ltd.
InventorsSaburo Akimoto, Sachio Maruchi, Masahiro Fukaya, Tomishi Shibano, Ippei Chimura, Hiroshi Asakura, Keisuke Kitazume, Shiro Fuse
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Abstract
A widthwise-stretched film is lap-sealed on one side of a backing paper, and polyethylene is extruded and coated on the surface of said film to form a release layer thereon. A pressure-sensitive adhesive composed mainly of polyacrylic ester is then coated on the other side of the backing paper. In this manner, a paper-backed adhesive tape of the pressure-sensitive type is prepared.
Claims12
A paper-backed adhesive tape of the pressure-sensitive type comprising a backing paper, a widthwise stretched film lap-sealed on one side of said backing paper through an adhesive layer, a release layer obtained by coating polyethylene on the surface of said film by extrusion, and a pressure-sensitive adhesive layer laminated on the other side of said backing paper.
A process for the preparation of paper-backed adhesive tapes of the pressure-sensitive type comprising the steps of lap-sealing a widthwise stretched film on one side of a backing paper, extruding and coating polyethylene on the surface of said film to form a release layer thereon and coating a pressure-sensitive adhesive composed mainly of polyacrylic ester on the other side of the backing paper.
Dependencies are inferred from the claim text.