Nippon Paper Industries has filed a patent for a resin material that combines pulp and a thermoplastic resin for easy molding. The material includes 10 to 90% by mass of a pulverized product of hardwood chemical pulp with a particle size of 100 µm or less, along with a thermoplastic resin like polyolefin or polylactic acid. GlobalData’s report on Nippon Paper Industries 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 Nippon Paper Industries, Sustainable packaging paper coating was a key innovation area identified from patents. Nippon Paper Industries's grant share as of September 2023 was 25%. Grant share is based on the ratio of number of grants to total number of patents.

A recently filed patent (Publication Number: US20230303805A1) describes a molding resin material that includes a pulverized product of pulp and a thermoplastic resin. The resin material comprises 10 to 90% by mass of the pulp, which has an average particle size of 100 µm or less. The pulp used in the material is specifically hardwood chemical pulp, and the thermoplastic resin can include a polyolefin-based resin, such as polypropylene, or a biodegradable resin, such as polylactic acid or polybutylene succinate. Additionally, the molding resin material may contain 5 to 15% by mass of a compatibilizing resin.

The patent also includes a method for producing the pulp pulverized product used in the molding resin material. The method involves pulverizing pulp to obtain a pulverized product with an average particle size of 100 µm or less. Similar to the molding resin material, the pulp used in the method is hardwood chemical pulp. The resulting pulp pulverized product can be used in combination with the thermoplastic resin to create the molding resin material described in the claims.

Overall, this patent presents a novel molding resin material that combines pulverized pulp with a thermoplastic resin. The use of hardwood chemical pulp and specific thermoplastic resins, including polyolefin-based resins and biodegradable resins, provides versatility and potential environmental benefits. The inclusion of a compatibilizing resin further enhances the properties of the molding resin material. The method for producing the pulp pulverized product offers a practical approach to obtaining the necessary particle size for the material. This patent may have implications for various industries that utilize molding resin materials, such as packaging, automotive, and construction.

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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.