公开(公告)号：US20220169818A1

公开(公告)日：2022-06-02

申请号：US17437450

申请日：2020-03-05

Applicant: Toray Industries, Inc.

Inventor： Hiroshi Ishida ,  Hideo Yogou ,  Tadafumi Akiyama ,  Yoshiyuki Oka

IPC: C08J9/228 ,  C08J9/10 ,  C08J5/18 ,  C08L23/06

Abstract: A polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, a 25% compression hardness defined in JIS K6767(1999) is 20-100 kPa, a ratio of cell sizes in longitudinal and thickness directions is 9-30, a ratio of cell sizes in width and thickness directions is 9-30, and an average cell film thickness in the thickness direction of the foamed sheet is 2-7 μm.

公开(公告)号：US20220145033A1

公开(公告)日：2022-05-12

申请号：US17437823

申请日：2020-03-05

Applicant: Toray Industries, Inc.

Inventor： Hideo Yogou ,  Hiroshi Ishida ,  Tadafumi Akiyama ,  Yoshiyuki Oka

IPC: C08J9/00 ,  C08J9/10 ,  C08J9/228 ,  C08L23/06

Abstract: A polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, an apparent density is 200-500 kg/m3, a tensile strength at 100% elongation in at least one direction of a longitudinal direction (MD direction) and a width direction (TD direction) of the sheet is 3.5-12 MPa, and a ratio of a tensile breakage strength and the tensile strength at 100% elongation in at least one direction of the MD direction and the TD direction of the sheet is 1.0-1.8.