Polyester composition and polyester film
AssigneeToyobo Co., Ltd.
InventorsSatoru Nakagawa, Hideto Ohashi, Kunihiro Maeda
Life of this patent
Estimating the term…
Abstract
The present invention is a polyester composition for a film, wherein the polyester composition comprises a masterbatch polyester composition including 1.0 to 2.0%, by mass of inorganic particles having an average particle diameter of 0.5 to 3.0 μm and having been prepared using a polycondensation catalyst containing, and an inorganic particle-free polyester resin in a mass ratio of 1:15 to 35; and wherein the polyester composition will cause little filter clogging and can provide a polyester film that is excellent in slipping properties, running properties and wear resistance and will suffer from little deterioration in quality due to defects or insoluble particles located on the film.
Claims13
1-7. (canceled)
A polyester composition for a film, wherein the polyester composition comprises a masterbatch polyester composition comprising 1.0 to 2.0% by mass of inorganic particles having an average particle diameter of 0.5 to 3.0 μm and having been prepared using a polycondensation catalyst containing an aluminum compound and a phosphorus compound, and an inorganic particle-free polyester resin in a mass ratio of 1:15 to 35.
Dependencies are inferred from the claim text.