Huhtamaki has been granted a patent for a plastic barrier laminate with crystallized layers containing polyethylene and pigmented layers with flake-shaped pigments. The laminate includes specific weight ranges for pigments and crystallization levels, enhancing barrier properties. GlobalData’s report on Huhtamaki gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Huhtamaki, Magnetic lids was a key innovation area identified from patents. Huhtamaki's grant share as of January 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.

Plastic barrier laminate with pigmented layer and nucleating agent

Source: United States Patent and Trademark Office (USPTO). Credit: Huhtamaki Oyj

A recently granted patent (Publication Number: US11865819B2) discloses a plastic barrier laminate designed for various applications, including flexible tube containers. The laminate consists of at least one partially crystallized layer containing polyethylene and a nucleating agent, along with at least one pigmented layer containing polyethylene and flake-shaped pigments. The pigmented layer comprises 3.0% to 8.0% of pigments by weight relative to the layer, with a minimum of 50% of the polyethylene content in the crystallized layer being crystallized.

Furthermore, the patent details variations in the composition of the laminate, such as the inclusion of multiple crystallized layers and pigmented layers, each with specific polyethylene materials and pigment percentages. The laminate may also incorporate gas and oxygen transmission barrier polymer layers for enhanced functionality. The innovative design of this plastic barrier laminate offers a versatile solution for packaging needs, particularly in the production of tube bodies for flexible tube containers, showcasing its potential for widespread use in the industry.

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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.