| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet-resistant polyurethane rubber member which does not harden to deteriorate by ultraviolet rays. SOLUTION: The ultraviolet-resistant polyurethane member obtained by molding a nonblack type polyurethane composition being an ultraviolet-resistant preparation does not contain titanium oxide and, simultaneously, is allowed to have a change in surface hardness, measured by a hardness micrometer after left to stand for 48 hours in an ultraviolet irradiation device having an irradiation intensity of 55W/m<SP>2</SP>and an inner temperature of 55°C, of at most±3°. COPYRIGHT: (C)2004,JPO
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