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    • 2. 发明申请
    • HIGH ASPECT RATIO CELLULOSE NANOFILAMENTS AND METHOD FOR THEIR PRODUCTION
    • 高比例纤维素纳米纤维及其生产方法
    • WO2012097446A1
    • 2012-07-26
    • PCT/CA2012/000060
    • 2012-01-19
    • FPINNOVATIONSHUA, XujunLALEG, MakhloufMILES, KeithAMIRI, RezaETTALEB, LahoucineDORRIS, Gilles
    • HUA, XujunLALEG, MakhloufMILES, KeithAMIRI, RezaETTALEB, LahoucineDORRIS, Gilles
    • D21D1/30D01B9/00D21B1/38D21H11/16
    • D21D1/30D21D1/20D21H11/16D21H11/18Y10T428/298
    • A novel method is disclosed to produce on a commercial scale, high aspect ratio cellulose nanofilaments (CNF) from natural lignocellulosic fibers. The method consists of a multi-pass high consistency refining (HCR) of chemical or mechanical fibers using specific combinations of refining intensity and specific energy. The CNF produced by this invention represents a mixture of fine filaments with widths in the submicron and lengths from tens of micrometers to few millimeters. The resultant product is made of a population of free filaments and filaments bound to the fiber core from which they were produced. The proportion of free and bound filaments is governed in large part by total specific energy applied to the pulp in the refiner. These CNF products differ from other cellulose fibrillar materials by their higher aspect ratio and the preserved degree of polymerization (DP) of cellulose. The CNF products made by this invention are excellent additives for the reinforcement of paper, tissue, paperboard and packaging products, plastic composite materials and coating formulations. They display exceptional strengthening power for never-dried paper webs.
    • 公开了一种以商业规模生产来自天然木质纤维素纤维的高纵横比纤维素纳米丝(CNF)的新方法。 该方法由使用精炼强度和比能量的特定组合的化学或机械纤维的多遍高浓度精炼(HCR)组成。 本发明生产的CNF表示亚微米宽度为几十微米至几毫米的细丝的混合物。 所得产物由自由长丝和长丝的群体制成,纤维芯与其生成纤维核。 游离和结合长丝的比例在很大程度上由施加在精炼机中的纸浆的总比能来决定。 这些CNF产品与其它纤维素纤维材料的高宽比和纤维素的保留聚合度(DP)不同。 本发明制备的CNF产品是增强纸张,纸巾,纸板和包装产品,塑料复合材料和涂料配方的优良添加剂。 它们显示出非常干燥的纸幅的强化力。
    • 3. 发明申请
    • CELLULOSE-REINFORCED HIGH MINERAL CONTENT PRODUCTS AND METHODS OF MAKING THE SAME
    • 纤维素增强的高矿物含量产品及其制备方法
    • WO2012040830A1
    • 2012-04-05
    • PCT/CA2011/001097
    • 2011-09-29
    • FPINNOVATIONSLALEG, MakhloufHUA, Xujun
    • LALEG, MakhloufHUA, Xujun
    • D21H17/67
    • D21H11/18D21H15/00D21H17/25D21H17/63D21H17/74
    • This invention relates to a novel method to prepare aqueous furnishes useful as feedstock in the manufacture of very high-mineral content products, particularly paper sheets having mineral filler content up to 90% that display the required physical properties for the intended applications. The furnishes comprise fibrillated long fibres/mineral fillers mixed with anionic acrylic binders and co-additives, in presence or absence of cellulose fibrils. The fibrillated long fibres and cellulose fibrils provide high surface area for greater filler fixation and the reinforcement backbone network that ties all of the product components together. The anionic binders allow rapid and strong fixation of filler particles onto the surfaces of fibrils when mixing is conducted at temperatures higher than the glass transition temperature (T g ) of the binder. To the novel aqueous formulation can be added other functional and process additives commonly used in the manufacture of paper and paperboard packaging by single, multilayer and multiply papermaking forming processes. The aqueous formulation can also be used to fabricate shaped items by the known pulp moulding processes. The aqueous formulations provide excellent filler retention and drainage during product fabrication.
    • 本发明涉及一种制备用于制造非常高矿物质含量产品的含水原料的含水配料的新方法,特别是具有高达90%的矿物填料含量的纸张,其显示出所需应用的所需物理性能。 这些配料包括在存在或不存在纤维素原纤维的情况下与阴离子丙烯酸粘合剂和共添加剂混合的原纤化长纤维/矿物填料。 原纤化长纤维和纤维素原纤维提供高表面积用于更大的填料固定和将所有产物组分结合在一起的加强骨架网络。 阴离子粘合剂允许在高于粘合剂的玻璃化转变温度(Tg)的温度下进行混合时,将填料颗粒快速且牢固地固定在原纤维表面上。 对于新型含水制剂,可以通过单一,多层和多次造纸成型工艺添加通常用于制造纸和纸板包装的其它功能和加工添加剂。 水性制剂也可用于通过已知的纸浆模制方法制造成型制品。 含水配方在产品制造过程中提供优异的填料保留和排水。
    • 4. 发明申请
    • EPICHLOROHYDRIN BASED POLYMERS CONTAINING PRIMARY AMINO GROUPS AS ADDITIVES IN PAPERMAKING
    • 含有基于丙氨酸的聚合物作为添加剂在原料中含有主要的氨基
    • WO2005082974A1
    • 2005-09-09
    • PCT/CA2005/000260
    • 2005-02-23
    • PULP AND PAPER RESEARCH INSTITUTE OF CANADAANTAL, MiroslavPIKULIK, Ivan I.HUA, Xujun
    • ANTAL, MiroslavPIKULIK, Ivan I.HUA, Xujun
    • C08G73/02
    • D21H17/56C08G73/02C08G73/0206C08G73/022C08G73/024C08G73/0286D21H17/10D21H17/52D21H21/10D21H23/04
    • Processes for preparing water-soluble papermaking polymer additives having a multitude of free amino groups effective to form cationically charged complexes with components of a pulp suspension are described, comprising: reacting ammonia and epichlorohydrin (ECH) with ammonia in excess to yield a starburst polymer with a molecular weight of 3000-10 6 ; reacting ECH and ammonia to produce tris(3-chloro-2-hydroxypropylamine) and reacting this with a diamine to yield a water-soluble branched polymer with a molecular weight of 3000-10 6 ; reacting polyepichlorohydrin with a variety of amines, a polyol or ammonia to yield linear polymers, cross-linked polymers and polyamines. The additives are used as agents for improving retention, drainage, product strength and paper machine operation in paper manufacture. Under neutral or acidic conditions these primary amino groups become cationic, which assures good adsorption of the polymer onto anionic fibres and fines used for production of paper or paperboard. By adsorbing on several fibres or fines, the polymer can increase the retention of fines and fillers. Primary amino groups of these polymers can also form chemical bonds with carbonyl groups of cellulose, lignin and hemicellulose, which are especially abundant in the fibres and fines of mechanical pulps. The cross-linking of fibres and fines by chemical bonds can increase the initial strength of wet web and the strength of rewetted paper.
    • 描述了制备具有多种游离氨基的水溶性造纸聚合物添加剂的方法,所述添加剂具有与纸浆悬浮液的组分有效形成阳离子带电荷的络合物,其包括:使氨和表氯醇(ECH)与氨过量反应,得到星爆聚合物, 分子量为3000-10-6; 使ECH和氨反应生成三(3-氯-2-羟丙基胺),并与二胺反应得到分子量为3000-106的水溶性支链聚合物; 使聚表氯醇与多种胺,多元醇或氨反应,得到线性聚合物,交联聚合物和多胺。 添加剂用作纸张制造中保留,排水,产品强度和造纸机操作的改进剂。 在中性或酸性条件下,这些伯氨基变成阳离子,这确保了聚合物对用于生产纸或纸板的阴离子纤维和细粒的良好吸附。 通过吸附在几根纤维或细粉上,聚合物可以增加细粒和填料的保留。 这些聚合物的伯氨基也可与纤维素,木质素和半纤维素的羰基形成化学键,其在机械纸浆的纤维和细粉中特别丰富。 通过化学键交联纤维和细粉可以增加湿网的初始强度和再润湿纸的强度。
    • 5. 发明申请
    • METHOD FOR PRODUCING CELLULOSE FILAMENTS WITH LESS REFINING ENERGY
    • 生产炼油能力较低的纤维素纤维的方法
    • WO2018049517A1
    • 2018-03-22
    • PCT/CA2017/051073
    • 2017-09-13
    • FPINNOVATIONS
    • HUA, XujunNJAMEN TCHAPDA, Guy RogerOWSTON, TomNEAULT, PatrickHU, ThomasBEN, Yuxia
    • D21D1/00D21C3/00D21C9/00
    • A novel method is disclosed to make cellulose filaments (CF) from wood or other plant fibers with lower energy consumption. The method consists of multi-stage, high consistency refining, followed by low consistency refining or by low consistency, non-refining mechanical treatment, of wood or other plant fibers. The total specific refining energy for the multi-stage, high consistency refining is preferably 2, 000 - 18,000 kWh/t, and more preferably 2,000 - 12,000 kWh/t. The CF produced can be used as a superior reinforcement additive in the production of paper, tissue or paperboard and in the production of plastic composites. It can also be used as a viscosity or rheology modifier in food products, coatings or drilling muds. The CF produced can also be used to make strong films for application in packaging and in composites.
    • 公开了一种新型方法,用于以较低的能量消耗从木材或其他植物纤维制造纤维素长丝(CF)。 该方法由多阶段,高浓度精炼,其次是低浓度精炼或低浓度,非精炼机械处理的木材或其他植物纤维组成。 用于多级高浓度精炼的总特定精制能量优选为2,000-18,000kWh / t,并且更优选2,000-12,000kWh / t。 所生产的CF可用作生产纸张,薄纸或纸板以及生产塑料复合材料的优质增强添加剂。 它也可以用作食品,涂料或钻井泥浆中的粘度或流变改性剂。 所生产的CF也可用于制造强力薄膜,以用于包装和复合材料。