METHOD FOR MANUFACTURING CONTAINERS FROM POLYETHYLENE TEREPHTHALATE WITH IMPROVED BARRIER COATINGS FROM SILICON DIOXIDE Russian patent published in 2019 - IPC B65D23/02 C23C16/40 C23C16/04 C23C16/46 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of applying a barrier coating from silicon oxide on a container of polyethylene terephthalate, comprising a wall having an inner surface and an outer surface, wherein the method comprises the following steps: (a) heating container from polyethylene terephthalate so that temperature of at least outer surface is in range from about 200 °F to about 383 °F; (b) forming a container of polyethylene terephthalate with a coating by applying at least one barrier layer of silicon oxide on at least an inner surface of the container of polyethylene terephthalate, while the temperature of at least the outer surface of the polyethylene terephthalate container is in the range of about 200 °F to about 383 °F; and (c) cooling the coated polyethylene terephthalate container after step b.

EFFECT: present invention provides a process for applying a silicon oxide barrier coating to a PET container, wherein the PET container comprises a wall having an inner surface and an outer surface.

8 cl, 3 dwg, 1 tbl