METHOD OF PREPARING STABILIZED POLYETHYLENE FILM Russian patent published in 2001 - IPC

FIELD: chemistry of polymers, particularly, manufacture of polymeric films. SUBSTANCE: described is the method of preparing stabilized polyethylene film having higher atmosphere resistance using benazole 2-(2'-hydroxy- -5-methylphenyl)benzotriazole as a light stabilizer. Irgaphos 168, i. e. tri-(phenyl-2,4-di-tertbutyl) phosphite and antioxidizer Irganox 1010, i. e. ester of 3,5-di-tertbutyl-4-hydroxyphenylpropionic acid and pentaerythrite are added to polymer, and the resulting film is exposed to radiation with beam of accelerated electrons with radiation dose of 0.7-1.3 Mrad. EFFECT: higher efficient preparation method. 2 cl, 1 tbl