公开(公告)号：US20210253922A1

公开(公告)日：2021-08-19

申请号：US17059590

申请日：2019-06-28

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Staffan Torssell ,  Lars Hjelm ,  Li Jansson ,  Huynh Tram Anh Pham ,  Ashar Zafar

IPC: C09J197/00 ,  B27N3/00 ,  B27N3/04 ,  B27N3/02 ,  C08K5/1515

Abstract: The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of an aqueous solution and mixed with one or more of glycerol diglycidyl ether, polyglycerol diglycidyl ether, polyglycerol polyglycidyl ether, glycerol triglycidyl ether, sorbitol polyglycidyl ether, alkoxylated glycerol polyglycidyl ether, trimethylolpropane triglycidyl ether, trimethylolpropane diglycidyl ether, polyoxypropylene glycol diglycidylether, polyoxypropylene glycol triglycidyl ether, diglycidylether of cyclohexane dimethanol, resorcinol diglycidyl ether, isosorbide diglycidyl ether, pentaerythritol tetraglycidyl ether, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether having 2-9 ethylene glycol units, propylene glycol diglycidyl ether having 1-5 propylene glycol units, and/or diglycidyl ether of terminal diol having a linear carbon chain of 3-6 carbon atoms; 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.

公开(公告)号：US20220033561A1

公开(公告)日：2022-02-03

申请号：US17297061

申请日：2019-11-26

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C08G16/06 ,  B27N3/00 ,  C08G8/38 ,  C08H7/00

Abstract: The present invention relates to a process for lignin dissolution in which partial methylolation of lignin is carried out during the step of preparing a solution of lignin in an aqueous medium comprising alkali and phenol. The lignin prepared according to the process of the present invention can be used to manufacture lignin-based phenolic resins, which are particularly useful in the manufacture of laminates.

公开(公告)号：US20210238367A1

公开(公告)日：2021-08-05

申请号：US17048713

申请日：2019-04-16

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C08J3/00 ,  B27N3/00 ,  B27N3/12 ,  B27N1/00 ,  C09J161/06 ,  C09J197/00 ,  C08K5/21

Abstract: The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde and comprising a formaldehyde scavenger, is mixed with a resin prepared from phenol and formaldehyde and comprising a formaldehyde scavenger to achieve a mixture useful as a bonding resin useful in the manufacture of oriented strand board (OSB).

公开(公告)号：US20220002500A1

公开(公告)日：2022-01-06

申请号：US17280409

申请日：2019-10-07

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Katarina Hägg

IPC: C08H7/00 ,  C08L97/00

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：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：US20200157287A1

公开(公告)日：2020-05-21

申请号：US16604462

申请日：2018-04-11

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Dimitri Areskogh

IPC: C08J3/03 ,  B27N3/00 ,  C08L97/00

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：US12252593B2

公开(公告)日：2025-03-18

申请号：US17643970

申请日：2021-12-13

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Dimitri Areskogh

IPC: C08J3/03 ,  B27N3/00 ,  C08L97/00

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：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.