Polyolefin resin foam sheet and adhesive tape
AssigneeSekisui Chemical Co., Ltd.
InventorsKoji YACHI, Shigeki MATSUKI, 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 composition, wherein the polyolefin resin composition contains a polyolefin resin (A) having relatively high density and a polyolefin resin (B) having relatively low density, and the weighted average resin density of the polyolefin resin (A) and the polyolefin resin (B) is 0.900 g/cm3 or less; and wherein a ratio [TD strength at break/MD maximum cell size] and a ratio [MD strength at break/TD maximum cell size] are both 45 kPa/μm or more.
Claims9
A polyolefin resin foam sheet having a plurality of cells which is formed by foaming a polyolefin resin composition,
- wherein the polyolefin resin composition contains a polyolefin resin (A) having relatively high density and a polyolefin resin (B) having relatively low density, and the weighted average resin density of the polyolefin resin (A) and the polyolefin resin (B) is 0.900 g/cm3 or less;
- and
- wherein, in the polyolefin resin foam sheet, a ratio of strength at break in the TD direction to the maximum cell size in the MD direction, [TD strength at break/MD maximum cell size], and a ratio of strength at break in the MD direction to the maximum cell size in the TD direction, [MD strength at break/TD maximum cell size], are both 45 kPa/μm or more.
Dependencies are inferred from the claim text.