| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasket for producing a plastic lens excellent in transparency and well-balanced in heat resistance and flexibility on a high level. SOLUTION: An ethylene/α-olefin copolymer with an MFR of 1-100g/10min., density (D) of 0.87-0.91g/cm<2> , a DSC melt peak (Tem) of 60-120 deg.C and Tem<=286D-137 and a polyethylene polymer with an MFR of 1-100g/10min and Tem of 120 deg.C or higher are compounded and molded to obtain a gasket having physical properties such that an MFR is 1-100g/10min, density is 0.87-0.91g/cm<3> , Tem is 120 deg.C or higher and heat of fusion is 3-20J/g. |
