US 11,987,032 B2
Resin sheet having hair-like bodies and molded article thereof
Hiroko Toyama, Tokyo (JP); and Keishi Maeda, Tokyo (JP)
Assigned to DENKA COMPANY LIMITED, Tokyo (JP)
Appl. No. 17/440,808
Filed by DENKA COMPANY LIMITED, Tokyo (JP)
PCT Filed Mar. 25, 2020, PCT No. PCT/JP2020/013374
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2020/196638, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-059050 (JP), filed on Mar. 26, 2019.
Prior Publication US 2022/0184917 A1, Jun. 16, 2022
Int. Cl. B32B 3/30 (2006.01); B29C 33/38 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 48/21 (2019.01); B29C 59/04 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B29K 75/00 (2006.01); B29L 7/00 (2006.01)
CPC B32B 3/30 (2013.01) [B29C 33/3842 (2013.01); B29C 48/002 (2019.02); B29C 48/08 (2019.02); B29C 48/21 (2019.02); B29C 59/04 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B29K 2075/00 (2013.01); B29L 2007/002 (2013.01); B32B 2307/538 (2013.01); B32B 2439/00 (2013.01); B32B 2457/00 (2013.01); B32B 2605/003 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A resin sheet having elongated bodies arranged regularly on at least one surface of a base layer comprising a thermoplastic resin,
the surface with the elongated bodies having a coefficient of friction, as measured according to KES (MIU), of 0.5 or more and 1.0 or less,
a deviation of the coefficient of friction, as measured by KES (MMD), of 0.010 or more and 0.025 or less,
a deviation of roughness, as measured by KES (SMD), of 0.2 or more and 1.5 or less,
the surface with the elongated bodies has a ratio (MIU/MMD) of the coefficient of friction, as measured according to KES, and the deviation of the coefficient of friction, as measured according to KES, of 40 or more and less than 55,
the thermoplastic resin comprises a polycarbonate-based urethane-based elastomer,
an aspect ratio of the elongated bodies is from 2 to 20,
the coefficient of friction, as measured according to KES (MIU), was measured by mounting a resin sheet 20 cm×20 cm in size on a test stand with a face to which the elongated bodies have been added oriented upwards, and using a texture tester, by moving a probe across the surface of the resin sheet at a load of 25 gf and a speed of 1 mm/sec. under atmospheric conditions with a relative humidity of 50% at 23° C.,
the deviation of the coefficient of friction, as measured according to KES (MMD), was measured by mounting a resin sheet 20 cm×20 cm in size on a test stand with a face to which the elongated bodies have been added oriented upwards, and using a texture tester, by moving a probe across the surface of the resin sheet at a load of 25 gf and a speed of 1 mm/sec. under atmospheric conditions with a relative humidity of 50% at 23° C., and
the deviation of roughness (SMD) was measured by mounting a resin sheet 20 cm×20 cm in size on a test stand with the face to which the elongated bodies have been added oriented upwards, and using a texture tester, by moving a probe across the surface of the resin sheet at a load of 10 gf and a speed of 1 mm/sec. under atmospheric conditions with a relative humidity of 50% at 23° C.