| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible polyurethane foam free from yellowing, hardly causing yellowing caused by the actions of ultraviolet rays, nitrogen oxide (NOx) and heat, and having excellent compression set; and to provide a molded article obtained by molding the polyurethane foam. SOLUTION: The flexible polyurethane foam free from the yellowing uses 3-isocyanatomethyl-3,5,5-trimethylhexyl isocyanate (IPDI) and/or a trimer thereof and/or a mixture of a polymer of the trimer (IPDI and/or a derivative thereof), and, a trimer of hexamethylene diisocyanate (HDI) and/or a mixture of a polymer of the trimer (a trimer of the HDI and/or a derivative thereof), in a mixed ratio of (the IPDI and/or the derivative thereof):(the trimer of the HDI and/or the derivative thereof) by mass regulated so as to be (70-30):(30-70). The molded article for clothes, sanitary or cosmetics is obtained by molding the flexible polyurethane foam free from the yellowing. COPYRIGHT: (C)2006,JPO&NCIPI |
