Biaxially oriented polyolefin film
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- FUTAMURA CHEM CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-10
AI Technical Summary
【0009】 本発明の二軸延伸ポリオレフィンフィルムは、優れた帯電防止効果を発現するフィルムであるとともに、延伸フィルム形成時の発煙が抑制されたフィルムである。 そして本発明の二軸延伸ポリオレフィンフィルムは、フィルム製造時に横延伸機(テンター)での発煙を大幅に低減し火災リスクの低減ができるのみならず、機械の汚染や、フィルム製品の重大な品質不良欠点の削減を可能とする、二軸延伸ポリオレフィンフィルムを提供することができる。
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Figure 2026095316000001 
Figure 2026095316000002
Abstract
Claims
1. (A) Glycerin fatty acid esters consisting of esters of fatty acids with 12 to 24 carbon atoms and glycerol, (B) One or more selected from the group consisting of aliphatic diethanolamines, fatty acid esters of polyoxyethylene aliphatic amines, fatty acid diethanolamides, and fatty acid monoesters of fatty acid diethanolamides. A biaxially oriented polyolefin film containing the following: The (A) glycerin fatty acid ester is characterized by containing 0 to 15% by mass of glycerin fatty acid monoester, 30 to 60% by mass of glycerin fatty acid diester, and 30 to 60% by mass of glycerin fatty acid triester (provided that the total amount of the monoester, diester, and triester is 100% by mass). Biaxially oriented polyolefin film.
2. Based on the total mass of the biaxially oriented polyolefin film, the amount of component (A) is 0.05 to 0.40% by mass. The biaxially oriented polyolefin film according to claim 1.
3. A method for producing a biaxially oriented polyolefin film, A process to obtain an unstretched sheet by T-die method from a raw material mixture comprising (A0) a glycerin fatty acid ester mixture containing an ester of a fatty acid having 12 to 24 carbon atoms and glycerin, (B) one or more selected from the group consisting of aliphatic diethanolamine, fatty acid esters of polyoxyethylene aliphatic amine, fatty acid diethanolamide, and fatty acid monoesters of fatty acid diethanolamide, and (C) a polyolefin resin, and The process includes a step of sequentially biaxial stretching the unstretched sheet, which is stretched in the longitudinal (MD) direction and then in the transverse (TD) direction. The (A0) glycerin fatty acid ester mixture is characterized by containing 0 to 15% by mass of glycerin fatty acid monoester, 30 to 60% by mass of glycerin fatty acid diester, and 30 to 60% by mass of glycerin fatty acid triester (provided that the total amount of the monoester, diester, and triester is 100% by mass). Manufacturing method.
4. A laminated film comprising a plurality of films, including the biaxially oriented polyolefin film described in claim 1.
5. A packaging body made of the laminated film described in claim 4.