| 摘要 |
PURPOSE:To obtain the title film having small voids around inert fine particles, excellent lubricity and chipping resistance, and surface properties suitable for many uses, by mixing an aromatic polyester with specified spherical crosslinked PS particles and molding the resulting mixture. CONSTITUTION:An acid component (a) based on an aromatic dicarboxylic acid is reacted with a glycol component (b) based on an aliphatic glycol to obtain a linear aromatic polyester (A) of an intrinsic viscosity (in o-chlorophenol at 35 deg.C) of 0.4-0.9. Component A is mixed with 0.005-4wt.%, based on component A, spherical crosslinked PS particles (B) of a particle diameter ratio as defined by the ratio of the maximum diameter to the minimum diameter of a particle of 1.0-1.2, preferably, 1.0-1.5, a mean particle diameter of 0.01-4mum, preferably, 0.05-3mum, and a relative standard deviation of formula I [wherein Di is the equivalent diameter (mum) of equal surface circle with respect to each particle, and formula II is a means value (mum) of the equivalent diameters represented by formula III, and n is the number of particles] <=0.5, and the resulting mixture is molded. |
