Polypropylene membranes, vapor-deposited polypropylene membranes, and laminated membranes
TW202633770APending Publication Date: 2026-08-16FUTAMURA CHEM CO LTD
View PDF 0 Cites 0 Cited by
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
Smart Images

Figure TWG2TA001072454_001 
Figure TWG2TA001072454_002 
Figure TWG2TA001072454_003
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.
Need to check novelty before this filing date? Find Prior Art