| 摘要 |
PURPOSE:To improve extremely release characteristics and to increase impact resistance further, by adding a specific urea compound to a polyamide resin composition having impact resistance which is previously blended with a modified ethylene copolymer in molten state. CONSTITUTION:99-40pts.wt. polyamide resin is blended in molten state with 1-60pts.wt. modified ethylene copolymer which is obtained by grafting 0.05- 1.5wt% alpha,beta-unsaturated carboxylic acid or its salt onto a copolymer of ethylene and a >=3C alpha-olefin to give 100pts.wt. resin composition, which is blended with 0.005-5pts.wt., preferably 0.03-0.3pt.wt. compound, e.g., 1, 4-bis(3-octadecylureido)benzene, etc., shown by the formula (R' is aromatic hydrocarbon residue; R<2> and R<3> are 8-32 aliphatic hydrocarbon residue). Larger effects can be obtained by adding 0.002-1.0pt.wt. nucleating agent, e.g., silica, alumina, etc. to 100pts.wt. resin composition. |
