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Patent Agency Ranking
公开(公告)号：US20180326620A1
公开(公告)日：2018-11-15
申请号：US15776305
申请日：2016-11-16
Applicant: Stora Enso OYJ
Inventor： JOHAN KALLSTROM , Fredrik Kallstrom , Martin Malmqvist , Roger Bergstrom , Conny Johansson , Maria Tornblom , Sofi Karlsson
IPC: B29B9/06
CPC classification number: B29B9/06 , B27N1/02 , B29C70/12 , B29K2101/12 , B29K2105/0005 , B29K2511/14 , D21H11/08
Abstract: The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.
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公开(公告)号：US20230332341A1
公开(公告)日：2023-10-19
申请号：US18042652
申请日：2021-07-09
Applicant: Stora Enso OYJ
Inventor： Martin Malmqvist
CPC classification number: D04H1/732 , D04H1/26 , D04H1/587 , D04H1/60 , D04H1/5418
Abstract: An air-laid blank (10) comprises natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 2.5 up to 30% by weight of the air-laid blank (10). The air-laid blank (10) has an average density and a portion (11) of the air-laid blank (10) has a density different from the average density. The air-laid blank (10) is produced by modifying the air-permeability of a portion (121) of an air-permeable collector (120) to form a portion (11) of the air-laid blank (10) having a density from the average density. The air-laid blank (10) has two parallel planar major surfaces (12, 14)
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公开(公告)号：US20230249889A1
公开(公告)日：2023-08-10
申请号：US18004501
申请日：2021-07-08
Applicant: Stora Enso OYJ
Inventor： Maria Törnblom , Martin Malmqvist
CPC classification number: B65D81/022 , B65D81/3813 , D04H1/732 , D04H1/58 , D04H1/425 , D04H1/5412 , B31B50/44 , B32B3/30
Abstract: A folded 3D shaped packaging product (30) is folded at at least one crease (22A, 22B, 22C, 22D, 22E) constituting a folding line in a 3D shaped product (20) formed by hot pressing of an air-laid blank (10) comprising natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 4 up to 30% by weight of the air-laid blank (10). The folded 3D shaped packaging product (30) is useful for cushioning and/or thermal insulation of packaged goods and can protect multiple sides of the packaged goods.
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公开(公告)号：US20230249890A1
公开(公告)日：2023-08-10
申请号：US18004503
申请日：2021-07-08
Applicant: Stora Enso OYJ
Inventor： Maria Törnblom , Martin Malmqvist
IPC: B65D81/02 , D21J3/00 , D21J1/20 , D21H27/10 , D21H15/10 , D21J1/08 , B31D5/00 , B65D81/38 , D04H1/732 , D04H1/58 , D04H1/425 , D04H1/541 , D04H1/542
CPC classification number: B65D81/022 , B31D5/006 , B65D81/3813 , D04H1/58 , D04H1/425 , D04H1/542 , D04H1/732 , D04H1/5412 , D21H15/10 , D21H27/10 , D21J1/08 , D21J1/20 , D21J3/00 , B31D2205/0005 , D10B2505/10
Abstract: A 3D shaped packaging product (20) for cushioning and/or thermal insulation of packaged goods is formed by hot pressing at an average pressure equal to or below 200 kPa of an air-laid blank (10) comprising natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 4 up to 30% by weight of the air-laid blank (10). The 3D shaped packaging product (20) has a density that is less than four times a density of the air-laid blank (10) and the density of the 3D shaped packaging product (20) is selected within an interval of from 15 to 240 kg/m3. The 3D shaped packaging product (20) maintains at least a significant portion of the porosity of the air-laid blank (10) even after hot pressing and therefore provides excellent shock absorbing and damping properties and thermal insulation.
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公开(公告)号：US11331830B2
公开(公告)日：2022-05-17
申请号：US15776305
申请日：2016-11-16
Applicant: Stora Enso OYJ
Inventor： Johan Kallstrom , Fredrik Kallstrom , Martin Malmqvist , Roger Bergstrom , Conny Johansson , Maria Tornblom , Sofi Karlsson
IPC: B29B9/06 , B29C70/12 , D21H11/08 , B29B7/94 , B29B7/92 , B29B7/60 , B29B7/90 , B29B9/14 , B29C48/00 , B29B15/08 , B29B13/06 , B27N1/02 , B29B7/46 , B29C31/02 , B29C48/285 , B29K101/12 , B29K105/00 , B29K511/14
Abstract: The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.
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