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公开(公告)号：US20160102201A1
公开(公告)日：2016-04-14
申请号：US14894120
申请日：2014-05-30
Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES
Inventor： Michael A. Bilodeau , Jonathan Spender
IPC: C08L67/04 , C09D167/04 , C08K3/34
CPC classification number: C08L67/04 , C08K3/34 , C08K3/346 , C08L67/02 , C08L2205/16 , C09D167/04 , C08L1/02 , C08K3/22 , C08K3/30
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.
Abstract translation: 公开的是制备由这些方法制备的聚合物复合材料和复合材料的方法，该方法包括：提供混合物，其包括：液体，聚合物前体和分散相前体; 并对混合物进行足够的反应条件：使聚合物前体聚合以产生聚合物和反应产物; 并从混合物中基本上除去所有液体和反应产物; 其中所述反应条件包括：约10毫托至约300托的压力; 和温度：大于或等于液体和反应产物的最高沸点; 小于聚合物的分解温度; 并且小于分散相前体的分解温度。
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公开(公告)号：US20150167243A1
公开(公告)日：2015-06-18
申请号：US14407751
申请日：2013-06-13
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 a depolymerizing treatment with one or both of: (a) a relatively high charge of ozone under conditions that promote the formation of free radicals to chemically depolymerize the cellulose fiber cell wall and interfiber bonds; or (b) a cellulase enzyme. Depolymerization may be estimated by pulp viscosity changes. The depolymerizing treatment is followed by or concurrent with mechanical comminution of the treated fibers, the comminution being done in any of several mechanical comminuting devices, the amount of energy savings varying depending on the type of comminuting system and the treatment conditions. Comminution may be carried out to any of several endpoint measures such as fiber length, % fines or slurry viscosity.
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。 该方法采用以下一种或两种的解聚处理：（a）在促进形成自由基以化学解聚纤维素纤维细胞壁和纤维间键的条件下相对较高的臭氧量; 或（b）纤维素酶。 解聚可以通过纸浆粘度变化来估计。 解聚处理之后是或同时进行处理的纤维的机械粉碎，粉碎在几种机械粉碎装置中的任何一种中进行，能量节省量根据粉碎系统的类型和处理条件而变化。 可以进行任何终点测量，例如纤维长度，细粉％或浆液粘度。
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公开(公告)号：US20230117442A1
公开(公告)日：2023-04-20
申请号：US17952400
申请日：2022-09-26
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：US10695947B2
公开(公告)日：2020-06-30
申请号：US14446712
申请日：2014-07-30
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Douglas W. Bousfield
Abstract: Building materials are generated by the simple mixing of cellulose nanofiber (CNF) slurry with typical wood-derived material such as wood meal, optionally with mineral particulate materials, and dried. Particle boards are made with wood meal particulates; wallboards are made with wood particulates and mineral particulates; paints are made with pigment particulates; and cement is made with aggregate particulates. The particle board samples were tested for fracture toughness. The fracture toughness was found to be from 20% higher up to ten times higher than the typical value for similar board, depending on the formulation. For cases of 20% by weight cellulose nanofibers and 80% wood, the fracture toughness was more than double that of typical particle board. The process sequesters carbon and oxygen into the building product for its lifespan—typically decades—and avoid releasing CO2 into the atmosphere.
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Patent Agency Ranking
公开(公告)号：US10563352B2
公开(公告)日：2020-02-18
申请号：US14407751
申请日：2013-06-13
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 a depolymerizing treatment with one or both of: (a) a relatively high charge of ozone under conditions that promote the formation of free radicals to chemically depolymerize the cellulose fiber cell wall and interfiber bonds; or (b) a cellulase enzyme. Depolymerization may be estimated by pulp viscosity changes. The depolymerizing treatment is followed by or concurrent with mechanical comminution of the treated fibers, the comminution being done in any of several mechanical comminuting devices, the amount of energy savings varying depending on the type of comminuting system and the treatment conditions. Comminution may be carried out to any of several endpoint measures such as fiber length, % fines or slurry viscosity.
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公开(公告)号：US09988762B2
公开(公告)日：2018-06-05
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 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 specific edge loading (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.
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公开(公告)号：US09944789B2
公开(公告)日：2018-04-17
申请号：US14894120
申请日：2014-05-30
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Jonathan Spender
IPC: C08L67/04 , C08L67/02 , C08K3/34 , C09D167/04
CPC classification number: C08L67/04 , C08K3/34 , C08K3/346 , C08L67/02 , C08L2205/16 , C09D167/04 , C08L1/02 , C08K3/22 , C08K3/30
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：US20150125658A1
公开(公告)日：2015-05-07
申请号：US14407759
申请日：2013-06-14
Inventor： Michael A. Bilodeau , Robert H. Hamilton
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.
Abstract translation: 使用纤维素纳米原纤维（CNF）以及高游离度，较不精炼的纸浆制备具有改进的表面性质和更有效的制造潜力的基底纸。 脱模纸作为普通粘合标签，工业薄膜涂料以及某些食品加工用途的背景。 CNF可以添加到配料中并加工成纸，或者CNF可以作为涂层添加到部分干燥的纸幅上。 CNF可以任选地与淀粉和淀粉交联剂组合。
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公开(公告)号：US20150033983A1
公开(公告)日：2015-02-05
申请号：US14446712
申请日：2014-07-30
Applicant: University of Maine System Board of Trustees
Inventor： Michael A. Bilodeau , Douglas W. Bousfield
Abstract: Building materials are generated by the simple mixing of cellulose nanofiber (CNF) slurry with typical wood-derived material such as wood meal, optionally with mineral particulate materials, and dried. Particle boards are made with wood meal particulates; wallboards are made with wood particulates and mineral particulates; paints are made with pigment particulates; and cement is made with aggregate particulates. The particle board samples were tested for fracture toughness. The fracture toughness was found to be from 20% higher up to ten times higher than the typical value for similar board, depending on the formulation. For cases of 20% by weight cellulose nanofibers and 80% wood, the fracture toughness was more than double that of typical particle board. The process sequesters carbon and oxygen into the building product for its lifespan—typically decades—and avoid releasing CO2 into the atmosphere.
Abstract translation: 建筑材料是通过将纤维素纳米纤维（CNF）浆料与典型的木材衍生材料如木粉，任选地与矿物颗粒材料混合并干燥而产生的。 刨花板用木粉颗粒制成; 墙板由木质颗粒和矿物颗粒制成; 涂料用颜料颗粒制成; 水泥是用聚集颗粒制成的。 测试刨花板样品的断裂韧性。 根据配方，发现断裂韧性比类似板的典型值高出20％，高达10倍。 对于20％重量的纤维素纳米纤维和80％的木材，其断裂韧性是典型刨花板的两倍以上。 该过程将碳和氧气隔离成建筑产品，以达到其寿命 - 通常为数十年，并避免将CO 2释放到大气中。
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