Amcor has patented a preform design for carbonated beverage containers with a passive CO2 barrier layer to enhance shelf-life. The barrier layer, blended with PET and PGA, reduces CO2 loss, ensuring product freshness for up to 40 weeks. The design optimizes thickness distribution for maximum effectiveness. GlobalData’s report on Amcor gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Data Insights Amcor Plc - Company Profile

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According to GlobalData’s company profile on Amcor, Synthetic Resin containers was a key innovation area identified from patents. Amcor's grant share as of March 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Carbonated beverage container preform with passive co2 barrier layer

Source: United States Patent and Trademark Office (USPTO). Credit: Amcor Plc

A recently granted patent (Publication Number: US11951654B2) discloses a preform designed to create a carbonated beverage container with specific features. The preform includes a finish, body portion, and bottom portion, with a base layer containing a passive CO2 barrier layer blended with polyethylene terephthalate (PET) and polyglycolic acid (PGA). This barrier layer decreases in thickness towards the bottom portion, resulting in enhanced CO2 retention. The container, filled at a gas volume of 1.5 g.v., is designed to lose only 19% of CO2 over 40 weeks or less of shelf life. The patent emphasizes the strategic positioning and composition of the CO2 barrier layer within the container wall to optimize its effectiveness.

Furthermore, the patent details variations in the composition and configuration of the preform for different sizes of carbonated soft drink containers, ranging from 8 oz to 2 L. The base layer, predominantly PET, includes specific weight percentages of the inner and outer portions, ensuring structural integrity and CO2 retention properties. The patent also explores alternative materials for the CO2 barrier layer, such as PGA alone or in combination with PET. By focusing on the intricate design and composition of the preform and resulting container, the patent aims to offer a solution for maintaining carbonation levels in beverages over an extended period, catering to various container sizes and compositions in the carbonated beverage industry.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.