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公开(公告)号：US11485850B2
公开(公告)日：2022-11-01
申请号：US15911506
申请日：2018-03-05
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
Abstract: Disclosed are processes for making polymeric composite materials and composite materials made from those processes, the process comprising: providing a mixture, comprising: a liquid, a polymer precursor, and a dispersed-phase precursor; and subjecting the mixture to reaction conditions sufficient: to effect polymerization of the polymer precursor to produce a polymer and a reaction product; and to remove substantially all the liquid and reaction product from the mixture; wherein said reaction conditions comprise: pressure between about 10 millitorr and about 300 torr; and temperature: greater than or equal to the highest boiling point of the liquid and reaction product; less than the decomposition temperature of the polymer; and less than the decomposition temperature of the dispersed-phase precursor.
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公开(公告)号：US10570563B2
公开(公告)日：2020-02-25
申请号：US15573712
申请日：2016-05-13
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
IPC: D21C9/00 , D21H11/16 , D06M11/76 , D06M13/184 , C08B3/20 , D06M101/06
Abstract: In some embodiments, the present invention provides methods including the steps of providing cellulosic material, associating the cellulosic material with an organic acid (e.g., lactic acid) to form a mixture, and heating the mixture to a temperature between 100° C. and 120° C. for at least ten minutes to form a treated cellulosic material, wherein the water retention value of the treated cellulosic material is decreased by at least 10% as compared to untreated cellulosic material.
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公开(公告)号：US11732127B2
公开(公告)日：2023-08-22
申请号：US17952400
申请日：2022-09-26
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
CPC classification number: C08L67/04 , C08K3/22 , C08K3/30 , C08K3/34 , C08K3/346 , C08L1/02 , C08L67/02 , C09D167/04 , C08L2205/16
Abstract: Disclosed are processes for making polymeric composite materials and composite materials made from those processes, the process comprising: providing a mixture, comprising: a liquid, a polymer precursor, and a dispersed-phase precursor; and subjecting the mixture to reaction conditions sufficient: to effect polymerization of the polymer precursor to produce a polymer and a reaction product; and to remove substantially all the liquid and reaction product from the mixture; wherein said reaction conditions comprise: pressure between about 10 millitorr and about 300 torr; and temperature: greater than or equal to the highest boiling point of the liquid and reaction product; less than the decomposition temperature of the polymer; and less than the decomposition temperature of the dispersed-phase precursor.
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公开(公告)号：US10731298B2
公开(公告)日：2020-08-04
申请号：US14407759
申请日：2013-06-14
Inventor： Michael A. Bilodeau , Robert H. Hamilton
IPC: D21H27/00 , D21H19/72 , D21H25/00 , D21H17/28 , D21H17/25 , D21H21/52 , D21H19/54 , D21H21/14 , D21H11/18 , D21H19/34 , D21H19/52 , D21H25/02
Abstract: Release base papers with improved surface properties and more efficient manufacturing potential are made using cellulose nanofibrils (CNF) along with high freeness, less refined pulp. Release papers serve as the backing for common adhesive labels, for industrial film coatings, and also for certain food processing uses. The CNF may be added to the furnish and processed to paper, or the CNF may be added as a coating onto a partially dried web of paper. The CNF may optionally be combined with a starch and a starch crosslinker.
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公开(公告)号：US20180142411A1
公开(公告)日：2018-05-24
申请号：US15573712
申请日：2016-05-13
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
IPC: D21C9/00 , D21H11/16 , D06M13/184 , D06M11/76 , C08B3/20
Abstract: In some embodiments, the present invention provides methods including the steps of providing cellulosic material, associating the cellulosic material with an organic acid (e.g., lactic acid) to form a mixture, and heating the mixture to a temperature between 100° C. and 120° C. for at least ten minutes to form a treated cellulosic material, wherein the water retention value of the treated cellulosic material is decreased by at least 10% as compared to untreated cellulosic material.
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Patent Agency Ranking
公开(公告)号：US20170073893A1
公开(公告)日：2017-03-16
申请号：US15309117
申请日：2015-05-06
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Mark A. Paradis
Abstract: A scalable, energy efficient process for preparing cellulose nanofibers is disclosed. The process employs treating the cellulosic material with a first mechanical refiner with plates having a configuration of blades separated by grooves, and subsequently treating the material with a second mechanical refiner with plates having a configuration of blades separated by grooves different than the first refiner. The plate configurations and treatment operations are selected such that the first refiner produces a first SEL that is greater than the SEL of the second refiner, by as much as 2-50 fold. An exemplary high first SEL may be in the range of 1.5 to 8 J/m. Paper products made with about 2% to about 30% cellulose nanofibers having a length from about 0.2 mm to about 0.5 mm, preferably from 0.2 mm to about 0.4 mm have improved properties.
Abstract translation: 公开了一种用于制备纤维素纳米纤维的可伸缩的节能方法。 该方法采用用第一机械磨浆机处理纤维素材料，其中板材具有由槽分隔的叶片构型，随后用具有不同于第一精磨机的槽分隔的叶片构型的第二机械磨浆机处理该材料。 板配置和处理操作被选择为使得第一精磨机产生大于第二精磨机的SEL的第一SEL高达2-50倍。 示例性的高第一SEL可以在1.5至8J / m的范围内。 用大约2％至大约30％的长度为约0.2mm至约0.5mm，优选为0.2mm至约0.4mm的纤维素纳米纤维制成的纸制品具有改进的性能。
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公开(公告)号：US11634863B2
公开(公告)日：2023-04-25
申请号：US16754556
申请日：2018-10-11
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Mark A. Paradis
Abstract: An improved market pulp and process for making the same by adding a composite material are described. The composite material includes cellulose nanocrystals, cellulose nanofibers, or another high aspect ratio, high surface area cellulose material (or a starch, or both) and a crosslinking compound that crosslinks a portion of the surface hydroxyl groups to form a 3-D matrix. Adding the composite material to market pulp has been shown to improve the strength of twice-dried paper products, made from such an enhanced market pulp. By crosslinking a portion of the surface hydroxyl groups in the market pulp to form a 3-D matrix, a first drying step may be accomplished without loss of benefits afforded when the market pulp is later re-pulped to make a paper product.
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公开(公告)号：US20200347549A1
公开(公告)日：2020-11-05
申请号：US16754556
申请日：2018-10-11
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Mark A. Paradis
Abstract: An improved market pulp and process for making the same by adding a composite material are described. The composite material includes cellulose nanocrystals, cellulose nanofibers, or another high aspect ratio, high surface area cellulose material (or a starch, or both) and a crosslinking compound that crosslinks a portion of the surface hydroxyl groups to form a 3-D matrix. Adding the composite material to market pulp has been shown to improve the strength of twice-dried paper products, made from such an enhanced market pulp. By crosslinking a portion of the surface hydroxyl groups in the market pulp to form a 3-D matrix, a first drying step may be accomplished without loss of benefits afforded when the market pulp is later re-pulped to make a paper product.
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公开(公告)号：US20200240087A1
公开(公告)日：2020-07-30
申请号：US16850552
申请日：2020-04-16
Inventor： George Tuszkiewicz , Matthew W. Lorence , Mark Paradis , Michael A. Bilodeau
IPC: D21J1/08 , D21H21/22 , D21H27/30 , D21H17/09 , D21H19/14 , D21J1/00 , D21H17/28 , D21H19/34 , D21H21/18 , D21H11/00 , D21H17/25
Abstract: The present disclosure relates to paperboard having an improved basis weight to bending strength relationship and methods of making paperboard having an improved basis weight to bending strength relationship. In particular, a paperboard provided herein includes a refined cellulose in at least 1 ply.
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公开(公告)号：US20180194939A1
公开(公告)日：2018-07-12
申请号：US15911506
申请日：2018-03-05
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
IPC: C08L67/04 , C09D167/04 , C08L67/02 , C08K3/34
Abstract: Disclosed are processes for making polymeric composite materials and composite materials made from those processes, the process comprising: providing a mixture, comprising: a liquid, a polymer precursor, and a dispersed-phase precursor; and subjecting the mixture to reaction conditions sufficient: to effect polymerization of the polymer precursor to produce a polymer and a reaction product; and to remove substantially all the liquid and reaction product from the mixture; wherein said reaction conditions comprise: pressure between about 10 millitorr and about 300 torr; and temperature: greater than or equal to the highest boiling point of the liquid and reaction product; less than the decomposition temperature of the polymer; and less than the decomposition temperature of the dispersed-phase precursor.
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