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    • 3. 发明公开
    • METHOD FOR CO-REFINING DRY URBAN WOOD CHIPS AND BLENDS OF DRY URBAN WOOD CHIPS AND THERMOPLASTIC RESINS FOR THE PRODUCTION OF HIGH QUALITY FIBERBOARD PRODUCTS
    • 用于生产高质量纤维板产品的干城市木芯片和干燥城市木芯片和热塑性树脂共混精炼的方法
    • EP0821749A1
    • 1998-02-04
    • EP96912927.0
    • 1996-04-19
    • Brooks, S. Hunter W.
    • Brooks, S. Hunter W.
    • D21C1B27N1B27N3D21B1D21C3D21D1
    • D21B1/14B27N1/00B27N3/007D21B1/063D21B1/16D21C1/02D21D1/30Y10S264/913
    • A method for making lignocellulose fibers, which may be optionally coated with a suitable thermoplastic, wherein the starting materials may be chosen from a wide variety of generally non-recyclable contaminated wood, paper, and/or plastic products. A mixture of the preferred lignocellulose material characterized by a relatively low moisture content and the desired thermoplastics is refined and comminuted in a steam atmosphere which is at a temperature, pressure, and duration sufficient to soften both the lignin within the wood chips and the thermoplastic polymer. The temperature of the steam atmosphere is relatively high because of the use of dry wood chips which do not result in excessive vaporization during heating. The comminution of the mixture occurs by auguring the mixture between counter-revolving dual refining discs in the elevated temperature, pressurized steam atmosphere. Upon passing through the dual revolving refining discs, the wood chips are continually abraded so as to result in the formation of fine fibers of the lignocellulose material, while the softened thermoplastics are concurrently refined so as to adhere uniformly around each of the abraded lignocellulose fibers. After passing through the refining discs, the fibers are cooled resulting in the formation of uniformly coated lignocellulose fibers, which may be used to form a variety of consolidated fiberboard products, such as by hot pressing or cold pressing operations.
    • 一种制备木质纤维素纤维的方法,其可以任选地用合适的热塑性塑料涂覆,其中起始材料可以选自各种通常不可回收的污染木材,纸和/或塑料产品。 将特征在于含水量较低的优选木质纤维素材料与期望的热塑性塑料的混合物精炼并在足以软化木屑内的木质素和热塑性聚合物的温度,压力和持续时间的蒸汽气氛中粉碎 。 由于使用了不会在加热过程中导致过度汽化的干燥木片,蒸汽气氛的温度相对较高。 混合物的粉碎通过在升高的温度,加压的蒸汽气氛中预混反向旋转的双精磨盘之间的混合物来实现。 在通过双旋转磨浆盘时,木屑不断磨损,从而导致木质纤维素材料的细纤维的形成,同时软化的热塑性塑料同时被细化以便均匀地粘附在每个磨损的木质纤维素纤维周围。 在通过精磨盘之后,纤维冷却,导致形成均匀涂覆的木质纤维素纤维,其可用于形成各种固结纤维板产品,例如通过热压或冷压操作。
    • 5. 发明公开
    • METHOD FOR PRODUCING NANOFIBRILLAR CELLULOSE AND NANOFIBRILLAR CELLULOSE PRODUCT
    • VERFAHREN ZUR HERSTELLUNG VONNANOFIBRILLÄRERCELLULOSE UNDNAN​​OFIBRILLÄRESCELLULOSEPRODUKT
    • EP3126570A1
    • 2017-02-08
    • EP15717527.4
    • 2015-03-27
    • UPM-Kymmene Corporation
    • NUOPPONEN, MarkusTAMPER, JuhaKAJANTO, Isko
    • D21H11/18D21B1/34
    • D21B1/14D21D1/36D21H11/18
    • In a method for producing nanofibrillar cellulose, cellulose based fibre material, in which internal bonds in cellulose fibres have been weakened by preliminary modification of cellulose, is subjected to disintegration treatment in form of pulp comprising fibres and liquid. The fibre material is supplied at a consistency higher than 10 wt-%, preferably at least 15 wt-%, to a disintegration treatment where fibrils are detached from the fibre material by joint effect of repeated impacts to the fibre material by fast moving successive elements and the weakened internal bonds of the cellulose fibres. The nanofibrillar cellulose is withdrawn from the disintegration treatment at dry matter which is equal or higher than the consistency of the fibre material. In the disintegration treatment, the fibre material is supplied through several counter-rotating rotors (R1, R2, R3 . . . ) outwards in the radial direction with respect to the rotation axis (RA) of the rotors in such a way that the material is repeatedly subjected to shear and impact forces by the effect of the blades (1) of the different counter-rotating rotors.
    • 在制造纳米纤维素纤维素的方法中,通过纤维素的预先改性而使纤维素纤维中的内部纤维弱化的纤维素类纤维材料以包含纤维和液体的纸浆的形式进行崩解处理。 将纤维材料以高于10重量%,优选至少15重量%的浓度供应至其中原纤维从纤维材料脱离的分解处理,通过快速移动连续元素对纤维材料的重复冲击的联合作用 和纤维素纤维的内部弱键。 在干物质的分解处理中将纳米纤维素纤维素从等于或高于纤维材料的稠度取出。 在分解处理中,纤维材料通过几个反向转动的转子(R1,R2,R3 ...)以相对于转子的旋转轴线(RA)的径向方向向外被提供,使得材料 通过不同的反向旋转转子的叶片(1)的作用重复地受到剪切和冲击力的影响。