Multilayered polypropylene film
AssigneeToray Industries, Inc.
InventorsToshiya Yoshii, Satoru Nakura, Masatsugi Murakami
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Abstract
Laminating a stretched thin propylene-ethylene block copolymer layer onto a surface of a laminate film hving a biaxially oriented polypropylene layer and a polypropylene layer uniaxially oriented only in the width direction. The resulting film has improved hand-cutting properties and the surface accepts wiring or drawing and is especially advantageous for use as adhesive tape.
Claims20
A multilayered polypropylene film capable of being readily cut by hand and having a surface which is capable of accepting writing or drawing thereon, which comprises a biaxially oriented polypropylene layer and a polypropylene layer uniaxially oriented in the direction of its width, and laminated upon at least one surface of said laminated film a propylene-ethylene block copolymer layer stretched uniaxially or biaxially.
Dependencies are inferred from the claim text.