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    AUTOMATIC PARTICLE-SIZE ANALYZER
    71.
    发明申请
    AUTOMATIC PARTICLE-SIZE ANALYZER 审中-公开
    自动颗粒尺寸分析仪

    公开(公告)号：WO1984004473A1

    公开(公告)日：1984-11-22

    申请号：PCT/US1984000699

    申请日：1984-05-09

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  MARRS, Gevan, Rickey

    IPC: B07B01/26

    CPC classification number: G01N15/0272 ,  B07B1/185 ,  B07B1/22 ,  B07B1/26 ,  B07B1/42 ,  B07B1/46 ,  B07B13/07

    Abstract: An apparatus which can automatically make a screen analysis of a granular material, thus eliminating the manual collection and weighing of the screened material. The heart of the apparatus is a polygonal drum having graded screens (14, 16, 18, 20, 22) on each of the faces except one (24). This open face (24) serves as a door for introducing a sample into the interior of the drum and for discharging any material larger than the largest screen (22). A gear motor (56) and crank (58) arrangement serves to longitudinally shake the drum and agitate the sample. A second gear motor (44) indexes the drum from screen to screen after a predetermined shaking time. Each screen fraction is accumulated on an electronic scale (76) with weights being determined by differential weighing. The gear motors are timed by a control box (66) which contains a microprocessor which also receives screen fraction weight inputs and calculates a screen analysis.

    Abstract translation: 可以自动对颗粒状材料进行屏幕分析的设备，从而消除了屏蔽材料的手动收集和称重。 设备的心脏是在除了一个（24）之外的每个面上具有分级屏幕（14,16,18,20,22）的多边形鼓。 该开口面（24）用作将样品引入滚筒内部并排出比最大筛网（22）大的任何材料的门。 齿轮马达（56）和曲柄（58）布置用于纵向震动滚筒并搅拌样品。 在预定的摇动时间之后，第二齿轮马达（44）将滚筒从屏幕折回到屏幕。 每个屏幕分数积累在电子秤（76）上，重量通过差示称重确定。 减速电机由控制箱（66）定时，控制箱包含微处理器，微处理器还接收屏幕分数重量输入并计算屏幕分析。

    METHOD OF TREATING PULP WITH PLURAL OXYGEN STAGES
    72.
    发明申请
    METHOD OF TREATING PULP WITH PLURAL OXYGEN STAGES 审中-公开
    用多种氧气阶段处理浆液的方法

    公开(公告)号：WO1983000887A1

    公开(公告)日：1983-03-17

    申请号：PCT/US1981001186

    申请日：1981-09-04

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  BENTVELZEN, Joseph, M. ,  CROSBY, Gerald, D. ,  TORREGROSSA, Louis, O.

    IPC: D21C09/02

    CPC classification number: D21C9/1057

    Abstract: A wood pulp slurry (17, 73, 123, 209) is treated with oxygen (89, 429, 212) in a mill with little change to the process or structure of the mill. No special pressure tanks are required. The consistency of the pulp need not be altered for the treatment step. It may be treated at the usual process consistency of the pulp; e.g.; it may be treated at the usual consistency of the pulp leaving a washer or subsequent steam mixer (86, 426, 206) without additional dewatering or additional dilution. The oxygen is added into a closed section of the system so that it cannot immediately vent to the atmosphere. Alkali (85, 425, 207) should also be present when the oxygen is mixed with the slurry. The mixing (88, 428, 211) should occur near to the point of oxygen addition. The pulp is treated with oxygen several times during a sequence. Some sequences are O-X-O and O-O-X-O in which X may be a hypochlorite, a peroxide or ozone, or chlorine, chlorine dioxide, combinations of chlorine (438) and chlorine dioxide (471), hypochlorite, peroxide or ozone. The sequence may be followed by a D stage (232). Specific mixer designs are also disclosed.

    Abstract translation: 在磨机中用氧气（89,429,212）处理木浆浆料（17,73,123,209），与轧机的工艺或结构几乎没有变化。 不需要特殊的压力罐。 对于处理步骤，不需要改变纸浆的稠度。 可以按照纸浆的通常工艺一致性进行处理; 例如。; 可以以离开洗涤器或随后的蒸汽混合器（86,426,206）的纸浆的通常稠度进行处理，而无需额外的脱水或额外的稀释。 将氧气加入系统的封闭部分，使其不能立即排放到大气中。 当氧气与浆料混合时，也应存在碱（85,425,207）。 混合（88,428,211）应发生在加氧附近。 在序列期间，用氧气处理纸浆几次。 一些序列是O-X-O和O-O-X-O，其中X可以是次氯酸盐，过氧化物或臭氧，或氯，二氧化氯，氯（438）和二氧化氯（471），次氯酸盐，过氧化物或臭氧的组合。 该序列之后可以是D阶段（232）。 还公开了特定的混合器设计。

    ENGINEERED STRUCTURAL WOOD PRODUCT AND METHOD FOR ITS MANUFACTURE
    75.
    发明申请
    ENGINEERED STRUCTURAL WOOD PRODUCT AND METHOD FOR ITS MANUFACTURE 审中-公开
    工程结构木制品及其制造方法

    公开(公告)号：WO1998010157A1

    公开(公告)日：1998-03-12

    申请号：PCT/US1997015250

    申请日：1997-08-28

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  BASSETT, Kendall, H. ,  DIMAKIS, Alkivadis, G. ,  HASENWINKLE, Earl, D. ,  KERNS, John, W. ,  SELBY, John, S. ,  WAGNER, Richard, E. ,  WILDERMAN, Ronald, C.

    IPC: E04C03/14

    CPC classification number: B27M3/0053 ,  B27B1/00 ,  E04C3/14 ,  Y10T156/1061 ,  Y10T156/1075 ,  Y10T428/24058 ,  Y10T428/24066 ,  Y10T428/24091 ,  Y10T428/24099 ,  Y10T428/24132 ,  Y10T428/24942 ,  Y10T428/24992 ,  Y10T428/31989

    Abstract: The invention comprises engineered structural wood products particularly useful in critical applications such as joists, headers, and beams where longer lengths, greater widths, and higher and predictable stress ratings may be required. The invention is also directed to a method for making the wood products. Most logs by nature are radially anisotropic, having wood of higher density and stiffness in their outer portion adjacent the bark than is found in the inner portion. The logs are machined to segregate the denser, stiffer outer wood. A first generally rectangular component (4) is formed from the less dense inner wood. Second generally rectangular components (6) are formed from the stiffer outer wood. Second components are adhesively bonded to at least one edge of the first components, more usually to opposite edges. The stiffer wood is thus specifically placed where it will contribute most effectively to the properties of the product. The product is analogous to an I-beam in which the lower density first component serves as the web and the higher density second component as the flange portion. The products can be handled in use in identical fashion to solid sawn lumber. They are characterized by much less variation in their stiffness than solid sawn visually or machine graded products and can be made in a wide range of width, thickness, and length.

    Abstract translation: 本发明包括在关键应用中特别有用的工程结构木制品，例如托梁，集管和梁，其中可能需要更长的长度，更大的宽度以及更高和可预测的应力等级。 本发明还涉及一种用于制造木制品的方法。 大多数原木本身是径向各向异性的，其在与外部部分相邻的外部部分中的密度和刚度较高的木材比在内部部分中发现。 原木被机械加工，以分离更密实，更硬的外木。 第一个大致矩形的部件（4）由较不密集的内木制成。 第二个大致矩形的部件（6）由较硬的外部木材形成。 第二组分粘合到第一组分的至少一个边缘，更通常地粘合到相对边缘。 因此，较硬的木材特别放置在最有效地对产品性能作出贡献的地方。 该产品类似于其中较低密度的第一部件用作纤维网和较高密度的第二部件作为凸缘部分的工字钢。 产品可以以与固体锯材相同的方式处理。 它们的特征在于硬度比实心锯切或机器分级产品的刚度变化更小，并且可以在宽的宽度，厚度和长度的宽范围内制造。

    METHOD FOR REPRODUCING CONIFERS BY SOMATIC EMBRYOGENESIS USING A MALTOSE ENRICHED MAINTENANCE MEDIUM
    76.
    发明申请
    METHOD FOR REPRODUCING CONIFERS BY SOMATIC EMBRYOGENESIS USING A MALTOSE ENRICHED MAINTENANCE MEDIUM 审中-公开
    通过使用麦芽糖富集维护介质通过人造胚胎发生聚合物的方法

    公开(公告)号：WO1995014373A1

    公开(公告)日：1995-06-01

    申请号：PCT/US1994013532

    申请日：1994-11-23

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  GUPTA, Pramod, K.

    IPC: A01H04/00

    CPC classification number: A01H4/00

    Abstract: The invention is a method for reproducing coniferous trees by somatic embryogenesis using plant tissue culture techniques in a multistage culturing process. A suitable explant, typically the fertilized embryo excised from an immature seed, is first cultured on a medium that induces multiple early stage proembryos. These are multiplied in a second culture having reduced growth hormones. Maltose is supplied as the carbon and energy source in the second culture. The early stage embryos grow in size and vigor to advanced early stage embryos. The embryos are then transferred to a cotyledonary embryo development culture. After several weeks somatic embryos having the appearance of zygotic embryos will have formed. These may be germinated before or after storage and transplanted to soil for further growth. Maltose used in the maintenance and multiplication culture results in larger and more robust advanced early stage embryos which, in turn, produce cotyledonary embryos very similar in morphology to natural zygotic embryos. The use of maltose at earlier stages of embryo development is more important that its use for embryo maturation.

    Abstract translation: 本发明是在多级培养方法中使用植物组织培养技术通过体细胞胚发生再生针叶树的方法。 首先在诱导多个早期胚胎的培养基上培养合适的外植体，通常从未成熟种子切除的受精胚胎。 这些在具有降低的生长激素的第二培养物中倍增。 麦芽糖作为第二种培养物中的碳源和能量来源。 早期胚胎的大小和活力都增长到晚期早期胚胎。 然后将胚胎转移到子叶胚胎发育培养物中。 几周后，将形成具有合子胚胎外观的体细胞胚。 这些可能在储存之前或之后发芽，并移植到土壤中进一步生长。 用于维持和繁殖培养的麦芽糖导致更大和更健壮的晚期早期胚胎，这反过来又产生与天然合子胚胎形态非常相似的子叶胚胎。 在胚胎发育的早期阶段使用麦芽糖更重要的是其用于胚胎成熟。

    HYDRAULIC BINDER COMPOSITION AND ITS USES
    77.
    发明申请
    HYDRAULIC BINDER COMPOSITION AND ITS USES 审中-公开
    液压粘合剂组合物及其用途

    公开(公告)号：WO1995003373A1

    公开(公告)日：1995-02-02

    申请号：PCT/US1994007921

    申请日：1994-07-15

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  WEST, Hugh ,  DELGADO, Ezequiel

    IPC: C09K17/48

    CPC classification number: C09K17/48 ,  B09B3/0033 ,  C09K17/50 ,  Y02W30/78

    Abstract: A three-part dry blended soluble mixture which includes a water soluble hydroxyl group bearing polymer, a covalent crosslinking agent, and a catalyst is made into an aqueous solution which is then applied to any underlying material of choice. After drying, the crosslinked polymer forms a material that is completely insoluble in water, thereby serving as a binder or tackifier. One additive that may be included with the dry blend is wood fiber in an approximate weight ratio of nine to one and thereafter this dry blend is combined with water where the three-part dry blend goes into solution while the fibers remain in suspension. This composition is then spray applied to any underlying material and upon drying, there is formed a bonded fiber matrix which is relatively strong and which has many applications such as for use as an erosion control/seeding material, a covering for landfills, or a covering for other particulate materials stored in an outside location. The insoluble polymer with or without the fiber will biodegrade over time in an outdoor environment.

    Abstract translation: 将含有水溶性羟基的聚合物，共价交联剂和催化剂的三部分干混溶的可溶性混合物制成水溶液，然后将其施加到任何选择的下层材料。 干燥后，交联聚合物形成完全不溶于水的材料，从而用作粘合剂或增粘剂。 可以包含在干混合物中的一种添加剂是大约重量比为9比1的木纤维，然后将该干混合物与水混合，其中三部分干混合物进入溶液，同时纤维保持悬浮。 然后将该组合物喷雾施用于任何下层材料，并且在干燥时，形成粘结纤维基质，其相对较强，并且具有许多应用，例如用作侵蚀控制/播种材料，用于填埋的覆盖物或覆盖物 用于存储在外部位置的其他颗粒材料。 具有或不具有纤维的不溶性聚合物将在室外环境中随时间而生物降解。

    SURFACED CELLULOSIC COMPOSITE PANEL AND PANEL FORMING METHOD
    79.
    发明申请
    SURFACED CELLULOSIC COMPOSITE PANEL AND PANEL FORMING METHOD 审中-公开
    表面光滑的复合面板和面板成型方法

    公开(公告)号：WO1993015888A1

    公开(公告)日：1993-08-19

    申请号：PCT/US1993000915

    申请日：1993-02-02

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  WINTEROWD, Jack, G. ,  PARK, David, W. ,  WIRZ, Harry, J. ,  KREIBICH, Roland, E. ,  SHANTZ, Robert, M. ,  GHERMAY, Timnit ,  CHILDRESS, Charles, C.

    IPC: B27N07/00

    CPC classification number: B27N7/005 ,  E04C2/10 ,  Y10T428/249959 ,  Y10T428/249987 ,  Y10T428/249989 ,  Y10T428/31989

    Abstract: A method of producing a surfaced composite panel (30) of cellulosic particulates, such as wood flakes, involves the application of polymer forming foamable material (36) to at least one of the first (32) and second (34) major surfaces of the panel, contacting said at least one of the first and second surfaces with a pressure applying surface to apply pressure thereto, foaming the polymer forming foamable material while pressure is applied and curing the applied foam material to produce a polymeric coating on the panel with the desired surface, which is typically extremely smooth. One or both surfaces may be surface treated in this manner. A skin (48) formed on the surface of the panel is believed to add to the strength and stiffness of the coating on the panel. A wide variety of foaming systems may be used to accomplish this surface treating. By avoiding sanding the surface treated panel, the skin remains intact. The resulting panel, in addition to being extremely smooth as desired, resists water penetration when subjected to water or high humidity conditions. The resulting panel is receptive to adhesives for purposes of securing overlaying materials such as vinyl, reduces formaldehyde emissions when a panel formed of the resin which emits formaldehydes is surface treated.

    Abstract translation: 生产纤维素颗粒如木屑的表面复合板（30）的方法涉及将聚合物形成发泡材料（36）施加到第一（32）和第二（34）主表面中的至少一个 使所述第一和第二表面中的至少一个与压力施加表面接触以对其施加压力，在施加压力的同时使聚合物形成发泡材料，并固化所施加的泡沫材料，以在所述面板上产生具有期望的聚合物涂层 表面，通常非常光滑。 一个或两个表面可以以这种方式进行表面处理。 认为形成在面板表面上的皮肤（48）增加了面板上涂层的强度和刚度。 可以使用各种发泡系统来完成该表面处理。 通过避免打磨表面处理的面板，皮肤保持原样。 除了根据需要非常光滑之外，所得到的面板在经受水或高湿度条件时抗水渗透。 所得到的面板接受粘合剂，以便确保覆盖材料例如乙烯基，当由发出甲醛的树脂形成的面板进行表面处理时，减少甲醛释放。

    METHOD FOR CROSSLINKING INDIVIDUALIZED CELLULOSE FIBRES
    80.
    发明申请
    METHOD FOR CROSSLINKING INDIVIDUALIZED CELLULOSE FIBRES 审中-公开
    用于交联个体化纤维素纤维的方法

    公开(公告)号：WO1993014261A1

    公开(公告)日：1993-07-22

    申请号：PCT/US1993000281

    申请日：1993-01-13

    Applicant: WEYERHAEUSER COMPANY

    Inventor： WEYERHAEUSER COMPANY ,  JEWELL, Richard, A.

    IPC: D21C09/00

    CPC classification number: D21H25/02 ,  A61F13/15707 ,  A61F13/53 ,  A61F2013/530007 ,  A61F2013/530474 ,  A61L15/28 ,  D04H1/54 ,  D04H1/587 ,  D04H1/655 ,  D06M11/30 ,  D06M13/137 ,  D06M13/1845 ,  D06M13/192 ,  D06M13/262 ,  D06M13/418 ,  D06M13/419 ,  D06M13/432 ,  D06M13/438 ,  D06M13/44 ,  D06M13/52 ,  D21B1/066 ,  D21C9/005 ,  D21H11/20 ,  D21H15/10 ,  D21H17/05 ,  D21H17/06 ,  D21H17/07 ,  D21H17/10 ,  D21H21/06 ,  D21H21/24 ,  D21H23/04 ,  D21H23/18 ,  D21H23/20 ,  D21H23/28 ,  D21H25/005 ,  C08L1/02

    Abstract: A method of forming a crosslinked cellulose product is disclosed wherein cellulose fibers are exposed to a solution that includes a catalyst and a crosslinking agent selected from the group consisting of a cyclic N-sulfatoimide or cyclic N-phosphatoimide; a dimethoxyethanal; a mixture of glyoxal and imidazolidone; a diethanol; or a periodate. Specific examples of the crosslinking agents of the present invention include pyridinium N-sulfatosuccinimide; 2,2'-sulfonyldiethanol; sodium periodate; a mixture of dimethoxyethanal and urea; and a mixture of glyoxal and 2-imidazolidone. An acid or base catalyst, as appropriate, may be used with the crosslinking agent to increase the crosslinking reaction rate. In especially preferred embodiments, cellulose fibers are exposed to the crosslinking agent and catalyst, then separated into individualized fibers in a fiberizer. The individualized fibers are then dried and cured at an elevated temperature such that intrafiber cellulose crosslinking bonds are formed to the substantial exclusion of interfiber bonds. The resulting cellulose fibers have high absorbency, bulk, and wet and dry resiliency that makes them suitable for use in such cellulose products as paper towels, diapers, and sanitary products.

    Abstract translation: 公开了一种形成交联纤维素产品的方法，其中将纤维素纤维暴露于包括催化剂和选自环状N-硫酸酰亚胺或环状N-磷酰亚胺的交联剂的溶液; 二甲氧基乙醛 乙二醛和咪唑啉酮的混合物; 二乙醇 或高碘酸盐。 本发明的交联剂的具体实例包括N-硫代琥珀酰亚胺吡啶鎓; 2,2'- sulfonyldiethanol; 高碘酸钠 二甲氧基乙醛和尿素的混合物; 和乙二醛和2-咪唑烷酮的混合物。 适当的酸或碱催化剂可与交联剂一起使用以增加交联反应速率。 在特别优选的实施方案中，将纤维素纤维暴露于交联剂和催化剂，然后在纤维化器中分离成个体化的纤维。 然后将个体化纤维在高温下干燥和固化，使得形成纤维素纤维素交联键以实质上排除纤维间粘结。 所得的纤维素纤维具有高的吸收性，本体和湿和干弹性，使得它们适用于诸如纸巾，尿布和卫生产品的纤维素产品。

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