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US 2017/0292002 A1Published application
Polyolefin resin foam sheet and adhesive tape
AssigneeSekisui Chemical Co., Ltd.
InventorsShigeki MATSUKI, Koji YACHI, Asami MATSUMOTO
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Abstract
There is provided a polyolefin resin foam sheet having a plurality of cells which is formed by foaming a polyolefin resin, wherein, in the polyolefin resin foam sheet, the average cell sizes and the maximum cell sizes in the MD direction and the TD direction are each a predetermined value, and a ratio [TD strength at break/MD average cell size] and a ratio [MD strength at break/TD average cell size] are both 80 kPa/μm or more.
Claims9
A polyolefin resin foam sheet having a plurality of cells which is formed by foaming a polyolefin resin,
- wherein, in the polyolefin resin foam sheet, the average cell sizes in the MD direction and the TD direction are 150 μm or less, and the maximum cell sizes in the MD direction and the TD direction are 500 μm or less;
- and
- a ratio of strength at break in the TD direction to the average cell size in the MD direction, [TD strength at break/MD average cell size], and a ratio of strength at break in the MD direction to the average cell size in the TD direction, [MD strength at break/TD average cell size], are both 80 kPa/μm or more.
Dependencies are inferred from the claim text.