Suzano has been granted a patent for a high-strength fiber composition with fibers up to 7mm long and a viscosity of 10-20 cP. The distribution of fibers based on length ensures strength, and the composition is redispersible. The patent also covers the use of this composition in articles. GlobalData’s report on Suzano 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 Suzano, Microfibrillated cellulose production was a key innovation area identified from patents. Suzano's grant share as of January 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
High-strength fiber composition with specific length and viscosity
A recently granted patent (Publication Number: US11879213B2) discloses a fiber composition comprising microfibrillated cellulose (MFC) fibers with a length equal to or less than 7 mm and a viscosity ranging from 10 to 20 cP. The composition includes a specific distribution of fiber lengths, with percentages varying from 0 to 0.2 mm up to 3.2 to 7.0 mm. The fibers can be virgin, recycled, or secondary fibers obtained through the kraft process and may be whitened, semi-whitened, or not whitened. Additionally, the fiber composition can have a dry content ranging from 3% to 70% and is redispersible, maintaining at least 70% of the Brookfield Viscosity initial value at 1% when redispersed.
Moreover, the patent covers the use of this fiber composition in various applications such as paper manufacturing, fiber cement, thermoplastic composites, inks, varnishes, adhesives, filters, and wooden panels. The method of using the fiber composition includes manufacturing paper, fiber cement, thermoplastic composites, inks, varnishes, adhesives, filters, and wooden panels. Furthermore, the patent extends to articles of manufacture incorporating the fiber composition, with examples including paper, fiber cement, thermoplastic composites, inks, varnishes, adhesives, filters, and wooden panels. The paper produced using this fiber composition exhibits specific characteristics like a tensile index of 70 to 100 Nm/g, elongation of 2 to 5%, Scott Bond of 180 to 300 ft·lb/in2, and bursting index of 4 to 9 KPam2/g, along with other properties such as volume-to-mass ratio, Taber stiffness, and wall thickness within defined ranges.
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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.
