公开(公告)号：CA3009875A1

公开(公告)日：2017-08-17

申请号：CA3009875

申请日：2017-02-06

Applicant: STORA ENSO OYJ

Inventor： RASANEN JARI ,  HILTUNEN MARI ,  HARLIN ALI ,  KOSKELA HANNA ,  LAINE CHRISTIANE ,  KELA LAURA

IPC: C08J9/16 ,  B32B5/20 ,  B32B27/10 ,  B65D1/34 ,  C08J9/22 ,  D21H17/33 ,  D21H21/56

Abstract: The invention concerns a method of manufacturing paper or board, the paper or board obtained by the method, and a method of producing a tray from the board. In a fibrous stock for papermaking is incorporated an amount of polymer coated fibrous particles, which even have a foaming agent such as moisture contained therein. A web is formed from the fibrous stock on a forming fabric of a paper or board machine, followed by pressing and drying to a finished paper or board. As the paper or board is sufficiently heated the foaming agent within the particles evaporates, causing expansion and foaming of the polymer coating, which adds to malleability of the board as it is moulded into a shaped article such as a board tray. The invention even covers production of doubly coated fibrous particles for use in said methods, the inner coating layer being of a foamable polymer with a higher melt flow rate and the outer coating layer being of a non-foaming polymer of a lower melt flow rate.

公开(公告)号：PL3414282T3

公开(公告)日：2021-07-19

申请号：PL17749943

申请日：2017-02-06

Applicant: STORA ENSO OYJ

Inventor： RÄSÄNEN JARI ,  HILTUNEN MARI ,  HARLIN ALI ,  KOSKELA HANNA ,  LAINE CHRISTIANE ,  KELA LAURA

IPC: C08J9/16 ,  B32B3/30 ,  B32B5/20 ,  B32B27/10 ,  B32B29/00 ,  B65D1/34 ,  C08J9/22 ,  D21F11/00 ,  D21H17/33 ,  D21H19/84 ,  D21H21/56

公开(公告)号：SE543676C2

公开(公告)日：2021-05-25

申请号：SE1950835

申请日：2019-07-03

Applicant: STORA ENSO OYJ

Inventor： HARLIN ALI ,  LAINE CHRISTIANE ,  KOSKELA HANNA ,  SETÄLÄ HARRI ,  KAMMIOVIRTA KARI ,  KETOJA JUKKA ,  HJELT TUOMO

IPC: D21H11/20 ,  B29C51/08 ,  B31B50/59 ,  B65B43/08 ,  C08B1/08 ,  C08L1/02 ,  D21H11/02 ,  D21H11/16 ,  D21H15/04

Abstract: The present invention relates to a method for manufacturing modified cellulose fibers for a moldable cellulose fiber based material, said method comprising: a) providing a chemical or semi-chemical wood pulp comprising cellulose fibers, and optionally subjecting the pulp to alkaline extraction to obtain an alkaline extracted pulp; and b) subjecting the pulp or the alkaline extracted pulp of step a) to a chemical treatment with an alkaline solution and/or an organic solvent to obtain a treated pulp or treated alkaline extracted pulp comprising modified cellulose fibers for a moldable cellulose fiber based material. The invention further relates to a moldable cellulose fiber based material comprising at least 70% by dry weight of modified cellulose fibers obtainable by the method.

公开(公告)号：CA3145652A1

公开(公告)日：2021-01-07

申请号：CA3145652

申请日：2020-07-02

Applicant: STORA ENSO OYJ

Inventor： SETALA HARRI ,  KAMMIOVIRTA KARI ,  LAINE CHRISTIANE ,  HARLIN ALI ,  HJELT TUOMO ,  KOSKELA HANNA ,  KETOJA JUKKA

IPC: D21H11/20 ,  B29C51/08 ,  B31B50/59 ,  B65B43/08 ,  C08B1/08 ,  C08L1/02 ,  D21H11/02 ,  D21H11/16 ,  D21H15/04

Abstract: The present invention relates to a method for manufacturing modified cellulose fibers for a moidable cellulose fiber based material, said method comprising: a) providing a chemical or semi-chemical wood pulp comprising cellulose fibers, and optionally subjecting the pulp to alkaline extraction to obtain an alkaline extracted pulp; and b) subjecting the pulp or the alkaline extracted pulp of step a) to a chemical treatment with an alkaline solution and/or an organic solvent to obtain a treated pulp or treated alkaline extracted pulp comprising modified cellulose fibers for a moidable cellulose fiber based material. The invention further relates to a moidable cellulose fiber based material comprising at least 70% by dry weight of modified cellulose fibers obtainable by the method.

公开(公告)号：SE1950835A1

公开(公告)日：2021-01-04

申请号：SE1950835

申请日：2019-07-03

Applicant: STORA ENSO OYJ

Inventor： HARLIN ALI ,  LAINE CHRISTIANE ,  KOSKELA HANNA ,  SETÄLÄ HARRI ,  KETOJA JUKKA ,  KAMMIOVIRTA KARI ,  HJELT TUOMO

IPC: D21H11/20 ,  B29C51/08 ,  B31B50/59 ,  B65B43/08 ,  C08B1/08 ,  C08L1/02 ,  D21H11/02 ,  D21H11/16 ,  D21H15/04

Abstract: The present invention relates to a method for manufacturing modified cellulose fibers for a moldable cellulose fiber based material, said method comprising: a) providing a chemical or semi-chemical wood pulp comprising cellulose fibers, and optionally subjecting the pulp to alkaline extraction to obtain an alkaline extracted pulp; and b) subjecting the pulp or the alkaline extracted pulp of step a) to a chemical treatment with an alkaline solution and/or an organic solvent to obtain a treated pulp or treated alkaline extracted pulp comprising modified cellulose fibers for a moldable cellulose fiber based material. The invention further relates to a moldable cellulose fiber based material comprising at least 70% by dry weight of modified cellulose fibers obtainable by the method.