公开(公告)号：US11981838B2

公开(公告)日：2024-05-14

申请号：US17048715

申请日：2019-04-16

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C09J197/00 ,  C08H7/00 ,  C08L97/02 ,  C09J161/06

CPC classification number: C09J197/005 ,  C08H6/00 ,  C08L97/02 ,  C09J161/06

Abstract: The present invention relates to an adhesive formulation comprising lignin, suitable for use in the manufacture of for example wood products. The lignin is provided in the form of a solution or dispersion or in dry solid form, such as in the form of a powder. The adhesive formulation also comprises phenol-formaldehyde (PF) resin and/or lignin-phenol-formaldehyde (LPF) resin. The adhesive formulation may also comprise extenders, hardeners, fillers and other additives, to achieve an adhesive formulation useful in the manufacture of for example wood products, such as plywood and laminated veneer lumber (LVL). The adhesive formulation can also be used in the manufacture of laminates and oriented strand boards.

公开(公告)号：US20220259466A1

公开(公告)日：2022-08-18

申请号：US17610856

申请日：2020-05-13

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C09J103/02 ,  C09J105/06 ,  C09J105/08 ,  C09J189/00 ,  C09J163/00 ,  B32B21/04 ,  B32B7/12 ,  B27D1/04

Abstract: The present invention relates to the use of a bonding resin prepared by providing an aqueous solution comprising at least one biobased product selected from tannin, starch, soy protein, glycerol, chitin, pectin, dextrose or other carbohydrates, or a mixture thereof and mixing the aqueous solution with one or more of certain crosslinkers such as ethers, and optionally one or more additives. The bonding resin is used in the manufacture of laminates, mineral wool insulation or wood products, such as engineered wood products, such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF) or particle boards. Preferably, the bonding resin does not comprise lignin.

公开(公告)号：US20230002654A1

公开(公告)日：2023-01-05

申请号：US17757258

申请日：2020-12-16

Applicant: Stora Enso OYJ

Inventor： Ashar Zafar ,  Huynh Tram Anh Pham ,  Katarina Hägg ,  Jesper Ekström

IPC: C09J197/00 ,  C08L97/00 ,  C09J163/00 ,  C08L63/00 ,  B27N1/00 ,  B27N3/00

Abstract: The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of a solution in ammonia and/or an organic base and mixed with one or more crosslinkers and optionally one or more additives. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards. The bonding resin is also useful for example in composites, molding compounds and foundry applications.

公开(公告)号：US11130257B2

公开(公告)日：2021-09-28

申请号：US16316807

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Ashar Zafar ,  Dimitri Areskogh ,  Jesper Ekström

IPC: B27N3/00 ,  B27N3/02 ,  C09J161/06 ,  C08G8/38 ,  B27N3/14 ,  C07G1/00 ,  C09J197/00 ,  C08H7/00 ,  C08L97/00 ,  C09D7/40 ,  C09D161/34

Abstract: The present invention relates to a lignin-based phenolic resin, particularly useful in the manufacture of oriented strand boards (OSB).

公开(公告)号：US20210238464A1

公开(公告)日：2021-08-05

申请号：US17048715

申请日：2019-04-16

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C09J197/00 ,  C09J161/06 ,  C08L97/02 ,  C08H7/00

Abstract: The present invention relates to an adhesive formulation comprising lignin, suitable for use in the manufacture of for example wood products. The lignin is provided in the form of a solution or dispersion or in dry solid form, such as in the form of a powder. The adhesive formulation also comprises phenol-formaldehyde (PF) resin and/or lignin-phenol-formaldehyde (LPF) resin. The adhesive formulation may also comprise extenders, hardeners, fillers and other additives, to achieve an adhesive formulation useful in the manufacture of for example wood products, such as plywood and laminated veneer lumber (LVL). The adhesive formulation can also be used in the manufacture of laminates and oriented strand boards.

公开(公告)号：US12077682B2

公开(公告)日：2024-09-03

申请号：US17610856

申请日：2020-05-13

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C09J103/02 ,  B27D1/04 ,  B32B7/12 ,  B32B21/04 ,  C09J105/06 ,  C09J105/08 ,  C09J163/00 ,  C09J189/00

CPC classification number: C09J103/02 ,  B27D1/04 ,  B32B7/12 ,  B32B21/042 ,  C09J105/06 ,  C09J105/08 ,  C09J163/00 ,  C09J189/00

Abstract: The present invention relates to the use of a bonding resin prepared by providing an aqueous solution comprising at least one biobased product selected from tannin, starch, soy protein, glycerol, chitin, pectin, dextrose or other carbohydrates, or a mixture thereof and mixing the aqueous solution with one or more of certain crosslinkers such as ethers, and optionally one or more additives. The bonding resin is used in the manufacture of laminates, mineral wool insulation or wood products, such as engineered wood products, such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF) or particle boards. Preferably, the bonding resin does not comprise lignin.

公开(公告)号：US20210388200A1

公开(公告)日：2021-12-16

申请号：US17281646

申请日：2019-10-07

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström ,  Dimitri Areskogh

IPC: C08L61/06 ,  C08H7/00 ,  C09J161/06

Abstract: The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.

公开(公告)号：US20210238424A1

公开(公告)日：2021-08-05

申请号：US17048712

申请日：2019-04-16

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C08L97/00 ,  B27N3/00 ,  B27N3/02 ,  B27N3/04 ,  B32B7/12 ,  B32B21/13 ,  B32B21/14 ,  B32B21/02 ,  C09J161/06 ,  C09J197/00

Abstract: The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde is mixed with a resin prepared from phenol and formaldehyde to achieve a mixture useful as a bonding resin useful in the manufacture of laminates, mineral wool insulation and wood products such as plywood, laminated veneer lumber (LVL), medium density fiberboards (MDF) and particle boards.

公开(公告)号：US10717873B2

公开(公告)日：2020-07-21

申请号：US16079039

申请日：2017-03-20

Applicant: Stora Enso OYJ

Inventor： Ashar Zafar ,  Dimitri Areskogh ,  Jesper Ekström

IPC: C07G1/00 ,  C08L61/14 ,  C08L97/00 ,  C09J197/00 ,  C08G8/38 ,  C08G8/34 ,  C08G8/10 ,  C08H7/00

Abstract: The present invention relates to a liquid lignin mixture comprising 3-50 wt % methanol, 12-50 wt % lignin and 5-85 wt % aqueous alkali solution wherein the concentration of said aqueous alkali solution is 1 to 50 wt % of alkali in water, based on the weight of said alkali solution prior to mixing with the other components of the mixture. The liquid lignin mixture can be used to manufacture lignin-based phenolic resins, which are particularly useful in the manufacture of laminates.

公开(公告)号：US20190152094A1

公开(公告)日：2019-05-23

申请号：US16316807

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Ashar Zafar ,  Dimitri Areskogh ,  Jesper Ekström

IPC: B27N3/00 ,  B27N3/02 ,  B27N3/14 ,  C09D161/34 ,  C09D7/40

Abstract: The present invention relates to a lignin-based phenolic resin, particularly useful in the manufacture of oriented strand boards (OSB).