Polypropylene membranes, vapor-deposited polypropylene membranes, and laminated membranes

TW202633770APending Publication Date: 2026-08-16FUTAMURA CHEM CO LTD
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Patent Information

Application Number
TW114116771
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-10-04
Filing Date
2025-05-05
Publication Date
2026-08-16

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Abstract

[Problem] To provide a polypropylene film, a vapor-deposited polypropylene film, and a laminated film that have excellent scratch resistance on the surface of a film subjected to vapor deposition or printing processing. [Solution] A polypropylene film (10) is composed of at least two layers, a first surface layer (20) and a second surface layer (30), both the first surface layer (20) and the second surface layer (30) containing an anti-blocking agent. When the arithmetic mean roughness of the three-dimensional surface roughness of the first surface layer (20) is set as SRa1 (μm), the number of peaks with a peak height of 1 μm or more in the three-dimensional surface roughness of the second surface layer (30) is set as SPc2 (number), and the pore volume of the anti-blocking agent contained in the second surface layer (30) obtained by nitrogen adsorption is set as V2 (ml / g), the scratch resistance value is satisfied to be 2600 or less.
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