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US 11,987,032 B2Granted
Resin sheet having hair-like bodies and molded article thereof
AssigneeDenka Company Limited
InventorsHiroko Toyama, Keishi Maeda
Life of this patent
Estimating the term…
Abstract
A resin sheet having hair-like bodies arranged regularly on at least one surface of a base layer containing a thermoplastic resin, the surface with the hair-like bodies having a coefficient of friction, as measured according to KES, of 0.5 or more and 1.0 or less, a deviation of the coefficient of friction, as measured by KES, of 0.010 or more and 0.025 or less, and a deviation of roughness, as measured by KES, of 0.2 or more and 1.5 or less.
Claims7
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.
6 more elements
Dependencies are inferred from the claim text.