Patent 11186713 was granted and assigned to DAK Americas (company) on November, 2021 by the United States Patent and Trademark Office.
Three independent approaches to the reduction of gas molecule permeability through a polyethylene terephthalate (PET) polyester film or container wall by increasing the mechanically or thermally induced crystallinity or the overall crystallinity level of a single or multilayer container, where the three approaches may be employed independently or in combination with one another.