METHOD FOR MANUFACTURING POLYKETONE MOLDED OBJECT

Japanese Patent JP3763781

B2

PROBLEM TO BE SOLVED: To provide a method for manufacturing a polyketone molded object efficiently and economically without generating the thermal degeneration of polyketone at the time of molding to obtain the polyketone molded object useful in various fields such as clothing, a reinforcing material for a rubber, a resin, cement, an optical fiber or the like, an electronic material, a battery material, a civil engineering material, a medical material, a living material, a fishing material, a packaging material or the like. SOLUTION: The method for manufacturing the polyketone molded object includes a process for mixing a liquid and/or gas for plasticizing polyketone with polyketone containing 90 mol% or more of a repeating unit represented by a structural formula (1), and having an intrinsic viscosity of 0.1-20 dl/g in an amount of 0.1-80% by weight of the total amount of a mixture; and molding the resulting mixture at a temperature ranging from (melting point of polyketone -100)°C to (melting point of polyketone -10)°C under a pressure of 0.1-30 MPa.