公开(公告)号：US20230256702A1

公开(公告)日：2023-08-17

申请号：US18004502

申请日：2021-07-08

Applicant: Stora Enso OYJ

Inventor： Maria Törnblom

IPC: B31D5/02 ,  B31D5/00 ,  D04H1/00 ,  D04H1/732 ,  D21H27/10 ,  D21H27/42

CPC classification number: B31D5/02 ,  B31D5/0039 ,  D04H1/005 ,  D04H1/732 ,  D21H27/10 ,  D21H27/42 ,  B31D2205/0005

Abstract: A 3D shaped product (20) is 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 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. The 3D shaped product (20) is recyclable in a repulping process. At least a part of the thermoplastic polymer binder is water soluble at a repulping temperature of the repulping process. The 3D shaped product (20) are environmentally friendly alternatives to plastic 3D shaped products made by foamed polymers and can be recycled in existing recycling schemes.

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

IPC: B65D81/02 ,  B65D81/38 ,  D04H1/732 ,  D04H1/58 ,  D04H1/425 ,  D04H1/541 ,  B31B50/44

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.

公开(公告)号：US20230416958A1

公开(公告)日：2023-12-28

申请号：US18252431

申请日：2021-12-07

Applicant: Stora Enso OYJ

Inventor： Maria Törnblom

IPC: D04H1/732 ,  D04H1/60 ,  D04H1/425 ,  D04H1/587

CPC classification number: D04H1/732 ,  D04H1/60 ,  D04H1/425 ,  D04H1/587 ,  D10B2403/0243 ,  D10B2201/01

Abstract: An air-laid blank (10) comprises natural fibers and a polymer binder. The air-laid blank (10) comprises multiple portions (11) having a local fiber orientation distribution that is different from a fiber orientation distribution of a remaining portion (13) of the air-laid blank (10). The air-laid blank (10) can be used to produce sound absorbing or damping articles (20). The invention also relates to methods and apparatuses (100) for producing such air-laid blanks (10).

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.

公开(公告)号：US20210024706A1

公开(公告)日：2021-01-28

申请号：US17042339

申请日：2019-04-03

Applicant: Stora Enso OYJ

Inventor： Duncan Mayes ,  Janne Pynnönen ,  Maria Törnblom

IPC: C08J5/06 ,  B29B11/14 ,  B27K3/02 ,  B27K3/15 ,  B27N1/02 ,  B27N3/04 ,  B27N3/12 ,  D04H1/425 ,  D04H1/732 ,  D04H1/558 ,  D04H1/58

Abstract: The present invention is directed to a method for manufacturing a drylaid mat suitable for thermoforming. The present invention is directed to a dry forming process, wherein cellulosic or lignocellulosic fibers have been impregnated, but not cross linked, with a cross linking agent prior to forming in a dry forming method. The invention is also directed to dry-laid mats manufactured according to the method as well as to thermoformed products manufactured from such dry-laid mats.