公开(公告)号：EP4375315A1

公开(公告)日：2024-05-29

申请号：EP22209201.7

申请日：2022-11-23

Applicant: SAPPI Netherlands Services B.V.

Inventor： BALLET, Wim ,  ALEXANDRE, Michaël

IPC: C08J5/04 ,  C08L1/08 ,  C08L23/06

CPC classification number: C08J2301/0820130101 ,  C08J5/045 ,  C08L1/02

Abstract: A natural fiber polymer composite precursor pellet comprising, a thermoplastic polymer coupling agent as a binder and a natural fiber, wherein the natural fiber is a bleached chemical pulp and is comprised in an amount of at least 88 weight %, and wherein the thermoplastic polymer coupling agent is comprised in an amount of between 8 and 12 weight %, preferably between 9 and 11 weight %, based on the weight of the pellet.

公开(公告)号：EP3999682A1

公开(公告)日：2022-05-25

申请号：EP20739367.9

申请日：2020-07-13

Applicant: SAPPI Netherlands Services B.V.

Inventor： BALLET, Wim

IPC: D21C9/00 ,  D21H17/36

公开(公告)号：EP3386703A1

公开(公告)日：2018-10-17

申请号：EP16806086.1

申请日：2016-12-05

Applicant: SAPPI Netherlands Services B.V.

Inventor： HENDRIX, Sandra ,  BALLET, Wim ,  MALETRAS, Lucile

IPC: B29B9/14 ,  B29B7/00 ,  B29B7/16 ,  B29B7/28 ,  B29B7/90

Abstract: A process for producing a precursor material for the manufacture of a composite material granulate, said precursor material comprising a polymer material and a fibre material, said process comprising the steps of, in this order; agitate a polymer material and a fibre material in a blending device comprising a blending means by operating the blending means at a velocity sufficient to bring about an increase of the temperature to at least a temperature beyond the VICAT softening point, or a temperature within or beyond the melting temperature range of the polymer material; b. maintain the velocity of the blending means; c. when the specific motor power needed to maintain the velocity of the blending means increases by a predetermined amount or reaches a predetermined value, reduce the velocity by a predetermined amount; d. repeat the previous step c. until the velocity falls below a first threshold value, thereby forming an intermediate material; e. comminuting the formed intermediate material in a, preferably cooled, comminuting device comprising a comminuting means by operating the comminuting means at a velocity allowing a decrease in temperature, until the temperature falls below a second threshold value, thereby forming the precursor material.

公开(公告)号：EP3310856A1

公开(公告)日：2018-04-25

申请号：EP16733009.1

申请日：2016-06-16

Applicant: SAPPI Netherlands Services B.V.

Inventor： BALLET, Wim ,  CANTEKIN, Seda ,  DUARTE, Gustavo ,  MOMIN, Saschi ,  SIMONS, Jo

IPC: C08L1/02 ,  D21C9/00

CPC classification number: C08L1/02 ,  C08J3/09 ,  C08J3/12 ,  C08J2301/02 ,  C08L2201/56

Abstract: The present invention provides for a dispersion containing cellulose particles dispersed in a continuous liquid phase comprising a first and a second continuous liquid phase, wherein the first continuous liquid phase consists of a liquid swelling agent or an aqueous solution of said liquid swelling agent, and the second continuous liquid phase comprises, preferably consists of, one or more organic solvents, with the proviso that the one or more organic solvents of the second continuous liquid phase are not capable of dissolving cellulose, have a boiling point higher than the boiling point of the first continuous liquid phase, and are miscible with the constituents of the swelling composition.

公开(公告)号：EP2279299A1

公开(公告)日：2011-02-02

申请号：EP09732389.3

申请日：2009-04-09

Applicant: SAPPI Netherlands Services B.V.

Inventor： GOMBART, Anne-Sophie ,  BALLET, Wim

IPC: D21H21/52

CPC classification number: B41M5/52 ,  D21H19/38 ,  D21H19/385 ,  D21H19/40 ,  D21H19/48 ,  D21H19/54 ,  D21H19/82 ,  D21H19/84 ,  D21H21/52 ,  D21H25/14

Abstract: A coated paper for offset printing comprising at least on one side a top coating layer, is described, said top coating layer comprising a pigment part, the 100 parts in dry weight thereof consisting of a) in the range of 50 -100 parts in dry weight of a fine particulate pigment with a particle size distribution such that at least 50% of the particles have a size of below or equal to 1 μm and/or that at least 80% of the particles have a size of below or equal to 2 μm, b) in the range of 0 - 50 parts in dry weight of a fine particulate pigment with a particle size distribution such that at least 50% of the particles have a size of below or equal to 3 μm and/or that at least 40% of the particles have a size of below or equal to 2 μm, as well as c) in the range of 0 - 50 parts in dry weight of a further fine particulate pigment, the parts a), b) and c) supplementing to 100 parts in dry weight a binder part with in the range of 2 - 20 parts in dry weight of binder, an additive part with in the range of 0 - 8 parts in dry weight of additive(s), wherein the binder part comprises a synthetic auto-oxidative resinous binder or at least partly (modified) natural resinous binder with auto-oxidative drying functionality as well as optionally at least one further non-resinous binder.