STYRENIC RESIN FOR STRETCHED FILM

摘要

PURPOSE:To obtain the subject resin capable of producing a formed material excellent in mechanical properties when used as a stretched film. CONSTITUTION:This styrenic resin for stretched film has a molecular weight within a range of 100000 to 2000000 and a ratio of an absolute molecular weight value Mabs determined from Rayleigh scattering in Rayleigh small angle scattering method to a molecular weight value Mr determined from an elution curve in the differential refractometry based on a standard straight chain polystyrene, i.e., Mabs/Mr within a range of >1.1 and <=2.0 when simultaneously measured by the differential refractometry and the Rayleigh scattering method according to gel permeation chromatopraphy using tetrahydrofuran as the solvent.