-
公开(公告)号：US20220018068A1
公开(公告)日：2022-01-20
申请号：US17492036
申请日：2021-10-01
Applicant: FiberLean Technologies Limited
Inventor： John Claude Husband , Per Svending , David Robert Skuse , Tafadzwa Motsi
Abstract: Methods of preparing partially dried or essentially completely dried compositions comprising microfibrillated cellulose and an inorganic particulate material may include microfibrillating a fibrous substrate comprising cellulose in an aqueous environment by grinding in the presence of an inorganic particulate material to form an aqueous composition comprising microfibrillated cellulose and inorganic particulate material, wherein the fibrous substrate comprising cellulose has a Canadian Standard freeness equal to or less than 450 cm, wherein the fibrous substrate to the inorganic particulate material are in a ratio of about 99.5:0.5 to about 0.5:99.5, and wherein the microfibrillated cellulose has a fibre steepness of from about 20 to about 50; by treating the aqueous composition comprising microfibrillated cellulose and inorganic particulate material to remove at least a portion or substantially all of the water of the aqueous composition to form a partially dried or essentially completely dried composition comprising microfibrillated cellulose and inorganic particulate material.
-
公开(公告)号：US10801162B2
公开(公告)日：2020-10-13
申请号：US16233458
申请日：2018-12-27
Applicant: FIBERLEAN TECHNOLOGIES LIMITED
Inventor： Per Svending , Jonathan Stuart Phipps , Johannes Kritzinger , Tom Larson , Tania Selina , David Skuse
IPC: D21H27/32 , D21H11/04 , D21H11/14 , D21H11/18 , D21H17/28 , D21H17/67 , D21H17/68 , D21H21/10 , D21H19/52
Abstract: The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
-
公开(公告)号：US10106928B2
公开(公告)日：2018-10-23
申请号：US14777329
申请日：2014-03-12
Applicant: FiberLean Technologies Limited
Inventor： John Claude Husband , Per Svending
Abstract: A paper product may include high energy thermomechanical pulp (TMP), low energy TMP, and microfibrillated cellulose. The paper product may also include inorganic particulate material. A papermaking composition suitable for making the paper product, a process for preparing the paper product, and use of microfibrillated cellulose may include high energy TMP, low energy TMP, and microfibrillated cellulose, and optionally inorganic particulate material. The microfibrillated cellulose may have a fiber steepness of from about 20 to about 50 in the paper product.
-
公开(公告)号：US20170284030A1
公开(公告)日：2017-10-05
申请号：US15475487
申请日：2017-03-31
Applicant: FiberLean Technologies Limited
Inventor： Per Svending , Jonathan Stuart Phipps , Johannes Kritzinger , Tom Larson , Tania Selina , David Skuse
CPC classification number: D21H27/32 , D21H11/04 , D21H11/14 , D21H11/18 , D21H17/28 , D21H17/67 , D21H17/675 , D21H17/68 , D21H19/52 , D21H21/10
Abstract: The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
-
-
-
Search Results
24
records
(took 0.014 seconds)
