公开(公告)号：US12053964B2

公开(公告)日：2024-08-06

申请号：US17256060

申请日：2019-06-25

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Frank Peng ,  Atso Laakso ,  Ari-Pekka Määttänen

IPC: B32B29/00 ,  B32B7/12 ,  B32B29/08 ,  B65D65/40 ,  D21H11/02 ,  D21H11/10 ,  D21H11/18 ,  D21H17/00 ,  D21H17/28 ,  D21H17/45 ,  D21H17/68 ,  D21H21/18 ,  D21H27/10 ,  D21H27/40

CPC classification number: B32B29/005 ,  B32B7/12 ,  B32B29/08 ,  B65D65/403 ,  D21H11/02 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/45 ,  D21H17/68 ,  D21H17/74 ,  D21H21/18 ,  D21H27/10 ,  D21H27/40 ,  B32B2250/03 ,  B32B2250/26 ,  B32B2307/546 ,  B32B2307/718 ,  B32B2307/72 ,  B32B2553/00

Abstract: The invention relates to a ply of a linerboard for corrugated board, which ply exhibits high strength properties and which enables the production of lightweight linerboards. The ply of the invention comprises 20-80 wt % CTMP from wood fibers and 80-20 wt % chemical pulp, calculated on the total fiber weight of said ply and strength additives chosen from the group of microfibrillated cellulose (MFC), anionic or cationic polymers and starch or combinations thereof. The ply exhibits a geometric SCT index of above 22 Nm/g and a density of below 680 kg/m3, preferably of below 650 kg/m3.

公开(公告)号：US11459159B2

公开(公告)日：2022-10-04

申请号：US16316729

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Seppo Lampainen ,  Simo Siitonen ,  Marianne Andersson

IPC: B65D81/26 ,  A23B7/157 ,  A23L3/358 ,  B01J20/02 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  B65D65/42 ,  C08L1/02 ,  D21H19/02 ,  D21H21/22 ,  D21H11/18 ,  C08B15/08 ,  D21H27/10 ,  A23B7/14 ,  B01J20/26 ,  B01J20/24 ,  A23L3/34

Abstract: The present invention relates to a material suitable for use in packages comprising nano-sized cellulose and an ethylene scavenging or ethylene absorbing agent. The invention also relates to methods for manufacturing such material, which may be paper, label, paperboard, plastic or film products.

公开(公告)号：US11077648B2

公开(公告)日：2021-08-03

申请号：US16087281

申请日：2017-03-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Seppo Lampainen ,  Jukka Kankkunen

IPC: B32B29/08 ,  D21H27/10 ,  D21H27/38 ,  D21H27/40 ,  D21H11/18 ,  D21H17/25 ,  D21H21/16 ,  D21H21/18 ,  D21H17/16 ,  D21H17/17 ,  D21H17/62 ,  B65D65/40 ,  B32B29/00

Abstract: A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.