METHOD OF MANUFACTURING SINGLE-LAYER PET BOTTLES WITH HIGH BARRIER AND IMPROVED TRANSPARENCY Russian patent published in 2008 - IPC C08L67/00 C08L77/00 C08K3/22 B29D22/00 

FIELD: technological processes.

SUBSTANCE: invention is related to composition for single-layer reservoirs such as bottles, to reservoir in the form of bottle or its pre-form, to polyester reservoirs. Composition includes the following components: polyester, partially aromatic polyamide, ionic component that improves miscibility and cobalt salt. Ionic component is copolyester that contains metal sulfonate salt. Polyester reservoir, which is manufactured out of above mentioned composition, is characterized with rate of oxygen penetrability of < 0.01 (CTD) cm³/m² atmospheres 24 hours after 100 hours in oxygen and carbon-dioxide gas passage rate below 7 cm³/bottle/24 hours, based on 0.5 l bottle.

EFFECT: increases barrier properties of reservoir and improves its colour and transparency.

27 cl, 13 tbl, 11 ex, 2 dwg