Billerud has filed a patent for a pulp mixture used in forming containers, consisting of specific percentages of two types of pulp with different Schopper-Riegler numbers. The patent also includes a method for producing the pulp mixture. GlobalData’s report on Billerud 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 Billerud, Sustainable packaging paper coating was a key innovation area identified from patents. Billerud's grant share as of January 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Eco-friendly container made from specific pulp mixture
A patent application (Publication Number: US20230407568A1) describes a container made from a pulp mixture, with specific compositions outlined in the claims. The container includes a first pulp comprising 65-90% by dry weight, with a Schopper-Riegler (SR) number below 48, and a second pulp comprising 10-35% by dry weight, with a Schopper-Riegler (SR) number of 60-90. The first and second pulps are refined resuspended market pulps, with the first pulp potentially containing at least 50% chemical softwood pulp-based. Additionally, the container may have specific fiber length proportions, filler content, and shapes such as bottle-shaped or pod parts.
Furthermore, the patent application details a method for producing the container, involving steps like low consistency (LC) refining of the first pulp, mixing with the second pulp, and forming the container in a mold. The energy supply for LC refining, dewatering of the pulp mixture in the mold, and applying a barrier layer to the container are also part of the method. The method ensures specific characteristics of the pulps and proportions in the mixture, as well as the manufacturing process to create the final container product with desired properties and composition.
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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.
