公开(公告)号：SE546347C2

公开(公告)日：2024-10-08

申请号：SE2330085

申请日：2023-02-16

Applicant: STORA ENSO OYJ

Inventor： HULT TORRON DANIEL ,  STERNER MARTIN ,  GHANADPOUR MARYAM ,  KÖKLÜKAYA ORUÇ

IPC: C08J9/30 ,  A01G24/27 ,  A01G24/48 ,  B29C44/12 ,  C08J9/28 ,  C08J9/35 ,  C08L1/02 ,  D21H21/24 ,  D21H21/56

Abstract: The present invention relates to a method for producing a solid cellulose foam, where the method comprises: providing discrete units of a first cellulose foam on a surface to obtain a first foam deposition, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm; depositing a second wet cellulose foam between the discrete units to obtain a subsequent foam deposition; and drying the second wet cellulose foam in the subsequent foam deposition to obtain a solid cellulose foam wherein discrete units of cellulose foam are embedded in a cellulose foam matrix. The present invention also relates to a solid cellulose foam comprising discrete units of a cellulose foam embedded in a cellulose foam matrix, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm.

公开(公告)号：SE2330084A1

公开(公告)日：2024-08-17

申请号：SE2330084

申请日：2023-02-16

Applicant: STORA ENSO OYJ

Inventor： STERNER MARTIN

IPC: C08J9/30 ,  A01G24/27 ,  A01G24/48 ,  B29C44/12 ,  C08J9/28 ,  C08J9/35 ,  C08L1/02 ,  D21H21/24 ,  D21H21/56

Abstract: The present invention relates to a method for producing a solid cellulose foam. The method comprises depositing a first wet cellulose foam to obtain a first wet foam deposition, which is subsequently provided with cutting lines extending at least partially through the height of the first wet foam deposition, to form pillars of wet cellulose foam. During drying of the first wet foam deposition, gaps are formed along the cutting lines so that the pillars are separated by said gaps. In a subsequent deposition step, a second wet cellulose foam is deposited so as to obtain a subsequent wet foam deposition that fills the gaps between the pillars. After drying, a solid cellulose foam comprising pillars of a first solid foam deposition and a subsequent solid cellulose foam deposition filling the gaps between the pillars is obtained.

公开(公告)号：SE546346C2

公开(公告)日：2024-10-08

申请号：SE2330084

申请日：2023-02-16

Applicant: STORA ENSO OYJ

Inventor： STERNER MARTIN

IPC: C08J9/30 ,  A01G24/27 ,  A01G24/48 ,  B29C44/12 ,  C08J9/28 ,  C08J9/35 ,  C08L1/02 ,  D21H21/24 ,  D21H21/56

Abstract: The present invention relates to a method for producing a solid cellulose foam. The method comprises depositing a first wet cellulose foam to obtain a first wet foam deposition, which is subsequently provided with cutting lines extending at least partially through the height of the first wet foam deposition, to form pillars of wet cellulose foam. During drying of the first wet foam deposition, gaps are formed along the cutting lines so that the pillars are separated by said gaps. In a subsequent deposition step, a second wet cellulose foam is deposited so as to obtain a subsequent wet foam deposition that fills the gaps between the pillars. After drying, a solid cellulose foam comprising pillars of a first solid foam deposition and a subsequent solid cellulose foam deposition filling the gaps between the pillars is obtained.

公开(公告)号：SE2330085A1

公开(公告)日：2024-08-17

申请号：SE2330085

申请日：2023-02-16

Applicant: STORA ENSO OYJ

Inventor： STERNER MARTIN ,  HULT TORRON DANIEL ,  GHANADPOUR MARYAM ,  KÖKLÜKAYA ORUÇ

IPC: C08J9/30 ,  A01G24/27 ,  A01G24/48 ,  B29C44/12 ,  C08J9/28 ,  C08J9/35 ,  C08L1/02 ,  D21H21/24 ,  D21H21/56

Abstract: The present invention relates to a method for producing a solid cellulose foam, where the method comprises: providing discrete units of a first cellulose foam on a surface to obtain a first foam deposition, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm; depositing a second wet cellulose foam between the discrete units to obtain a subsequent foam deposition; and drying the second wet cellulose foam in the subsequent foam deposition to obtain a solid cellulose foam wherein discrete units of cellulose foam are embedded in a cellulose foam matrix. The present invention also relates to a solid cellulose foam comprising discrete units of a cellulose foam embedded in a cellulose foam matrix, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm.