| 摘要 |
PROBLEM TO BE SOLVED: To provide flexible polyurethane foam for electromagnetic wave shield gasket, which has excellent fire retardance without using a halogen-based fire retardant and also has small compressive residual strain, and an electromagnetic wave shield gasket using the same. SOLUTION: The flexible polyurethane foam for electromagnetic wave shield gasket is formed by foaming and hardening a foam raw material containing a polyol (containing a polymer polyol), an isocyanate, and a phosphorus-based fire retardant (phosphate-based fire retardant etc.), and contains the phosphate-based fire retardant of 4 to 23% by mass, wherein phophorous contained in the phosphate-based fire retardant is 12 to 20% by mass, and has density of 30 to 100 kg/cm<SP>3</SP>. The electromagnetic wave shield gasket includes foam 1 for gasket made of electromagnetic wave shield gasket flexible polyurethane foam and conductive cloth 2 covering the outer peripheral surface of the foam. COPYRIGHT: (C)2009,JPO&INPIT |
