Polymers containing cyclic ether units joined through 2,6-diyl linkages
    2.
    发明授权
    Polymers containing cyclic ether units joined through 2,6-diyl linkages 失效
    含有环醚单元的聚合物通过2,6-二烯键连接

    公开(公告)号:US4260702A

    公开(公告)日:1981-04-07

    申请号:US97138

    申请日:1979-11-26

    CPC分类号: C08G61/08 C08G59/14 C08G85/00

    摘要: Polymers that have a number average molecular weight of at least 1000 and that contains at least 5% by weight of segments that contain at least two consecutively recurring cyclic ether units wherein at least one of said tetrahydropyran 2,6-diyl unit of the formula ##STR1## and wherein the remainder of said cyclic ether units are selected from said tetrahydropyran 2,6-diyl units and tetrahydrofuran 2,5-diyl units of the formula ##STR2## wherein R.sup.1, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 are each selected from hydrogen and lower alkyl groups;R.sup.2 and R.sup.7 are each selected from hydrogen, lower alkyl groups and aryl groups;R.sup.4 and R.sup.5 are each selected from hydrogen, lower alkyl groups, aryl groups and halo; andR.sup.3 and R.sup.6 are selected from hydrogen, lower alkyl groups and aryl groups or combine to form a divalent linking moiety having the formula ##STR3## wherein C.sup.7 and C.sup.8 are joined to the C.sup.3 and C.sup.5 positions respectively of said cyclic ether units; W, X, Y and Z are each monovalent groups or W and Z are each monovalent groups and X and Y combine to form a divalent linking moiety, that bridges between C.sup.7 and C.sup.8.

    摘要翻译: 具有数均分子量至少为1000并且含有至少5重量%的包含至少两个连续重复的环醚单元的链段的聚合物,其中至少一个所述四氢吡喃2,6-二基单元, 并且其中所述环醚单元的剩余部分选自所述四氢吡喃2,6-二基单元和式IMA的四氢呋喃2,5-二基单元,其中R 1,R 8,R 9,R 10,R 11,R 12,R 13 和R 14各自选自氢和低级烷基; R2和R7各自选自氢,低级烷基和芳基; R4和R5各自选自氢,低级烷基,芳基和卤素; 或者R 3和R 6选自氢,低级烷基和芳基,或结合形成具有下式的二价连接部分:其中C7和C8分别连接到所述环醚单元的C3和C5位; W,X,Y和Z分别是一价基团或W和Z各自是一价基团,X和Y组合形成二价连接部分,其桥接在C7和C8之间。

    Process for prepolymers and products
    4.
    发明授权
    Process for prepolymers and products 失效
    预聚物和产品的工艺

    公开(公告)号:US4061624A

    公开(公告)日:1977-12-06

    申请号:US708914

    申请日:1976-07-26

    IPC分类号: C08G65/20 C08G65/26 C08G75/18

    摘要: Process for preparing linear terminally differentially electrophilically reactive prepolymers by reacting cyclic ethers or lactones comprising a major proportion of tetramethylene oxide with an initiator represented by the asymmetrical structureYO.sub.m SO.sub.2 R.sub.n Q,whereinQ is a first radical which in anionic form is a non-terminating anion in the polymerization of tetramethylene oxide;Y is a second radical, free from alkylatable groups, selected from alkyl, alkaryl, aryl, aralkyl and cycloalkyl and having the free valence on a carbon atom devoid of halogen atoms;n = 0 or 1;m = 0 or 1; andR is a divalent bridging radical comprising at least one oxyalkylene radical --(OR').sub.q where q is 1 to 300 and preferably 1 to 50, and R' is alkylene of 2 to 10 carbon atoms, at least half being C.sub.4 H.sub.8.The differentially electrophilically reactive prepolymers have different reactivity at the two ends so that successive reagents can react with the two ends to give product prepolymers having two unlike terminations. Such product prepolymers can provide segmented copolymers having utility as adhesives, elastomers and protective coatings.

    摘要翻译: 通过使包含主要比例的四氢呋喃的环醚或内酯与由不对称结构YOmSO 2 R n Q表示的引发剂反应来制备线性末端差异亲电反应性预聚物的方法,其中Q是阴离子形式的第一个基团,其为阴离子形式的非终止阴离子 四氢呋喃的聚合; Y是不含可烷基的第二个基团,选自烷基,烷芳基,芳基,芳烷基和环烷基,并且在没有卤素原子的碳原子上具有游离价; N = 0或1; M = 0 OR 1; 和R是包含至少一个氧化烯基 - (OR')q的二价桥连基团,其中q为1至300,优选1至50,R 1为2至10个碳原子的亚烷基,至少一个为C 4 H 8。

    Database fragment cloning and management
    5.
    发明申请
    Database fragment cloning and management 有权
    数据库片段克隆和管理

    公开(公告)号:US20070043749A1

    公开(公告)日:2007-02-22

    申请号:US11207482

    申请日:2005-08-19

    IPC分类号: G06F7/00

    摘要: Mechanisms and techniques for database fragment cloning and management are provided. A database object, such as a table, rowset or index, is divided into fragments. Each fragment is cloned to create cloned fragments, which operationally are substantially identical to one another. One or more of the cloned fragments may be designated as a primary cloned fragment for performing database operations or as a secondary cloned fragment for serving as backup. Updates to each fragment are implemented on the primary cloned fragment and are then propagated from the primary cloned fragment to the corresponding secondary cloned fragments. A cloned fragment can go offline, becoming unavailable to be updated. When the cloned fragment returns online, the cloned fragment is refreshed with data included in the primary cloned fragment. While being refreshed, the cloned fragment may continue to be updated. The cloned fragment is eligible to be designated as a primary cloned fragment when the refreshing process has been completed.

    摘要翻译: 提供了数据库片段克隆和管理的机制和技术。 数据库对象(如表,行集或索引)被划分成片段。 克隆每个片段以产生克隆的片段,其在操作上基本上彼此相同。 可以将一个或多个克隆的片段指定为用于执行数据库操作的主要克隆片段或用作备份的辅助克隆片段。 对每个片段的更新在主要克隆片段上实现,然后从主要克隆片段扩增到相应的次级克隆片段。 克隆的片段可以脱机,不可更新。 当克隆片段返回联机时,克隆片段将使用包含在主克隆片段中的数据进行刷新。 刷新时,克隆片段可能会继续更新。 当刷新过程完成时,克隆片段有资格被指定为主要的克隆片段。

    Mapping of schema data into data structures
    6.
    发明申请
    Mapping of schema data into data structures 审中-公开
    将模式数据映射到数据结构中

    公开(公告)号:US20060085451A1

    公开(公告)日:2006-04-20

    申请号:US11179918

    申请日:2005-07-12

    IPC分类号: G06F7/00

    CPC分类号: G06F16/86

    摘要: Translation architecture that facilitates translation between schema data and relational structures. The architecture includes a translation component that consumes schema data (e.g., an XML schema) that includes a schema structure, validates the schema structure, and persists in memory a representation of the schema as a relational format. Since schemas are shredded into tables, instance validation loads only the necessary components to perform validation. During validation, only parts of the schema that are used are loaded and cached. A schema cache stores the in-memory representation of schema optimized for instance validation. Schema components are loaded from metadata into main memory as read-only objects such that multiple users can use the in-memory objects for validation, query processing, query optimization and storage optimization of XML instance data

    摘要翻译: 有助于模式数据和关系结构之间的转换的翻译架构。 该架构包括消耗包括模式结构的模式数据(例如,XML模式)的翻译组件,验证模式结构,并将存储器中的模式的表示作为关系格式持续存储。 由于模式被分解成表,实例验证只加载必要的组件来执行验证。 在验证期间,只有部分使用的模式被加载和缓存。 模式缓存存储针对实例验证优化的模式的内存中表示。 模式组件从元数据加载到主内存中作为只读对象,以便多个用户可以使用内存中的对象来进行XML实例数据的验证,查询处理,查询优化和存储优化

    Shaft driven bicycle and transmission therefor
    7.
    发明申请
    Shaft driven bicycle and transmission therefor 失效
    轴驱动自行车及其传动装置

    公开(公告)号:US20050093267A1

    公开(公告)日:2005-05-05

    申请号:US11003706

    申请日:2004-12-03

    CPC分类号: B62M17/00 B62M23/00

    摘要: A two-wheel drive bicycle includes a main frame having a steering head, a seat tube, a cross bar and a hollow downtube. A main drive mechanism includes a housing, a driving spindle, at least one driven ring gear, a first driven shaft and a second driven shaft. The first driven shaft is rotatably connected to the housing and operably coupled to the at least one driven ring gear. The second driven shaft is, likewise, rotatably connected to the housing and operably coupled to the at least one driven ring gear. Front and rear wheel drive mechanisms include a series of shafts that are themselves coupled to and between the first and second driven shafts and the front and rear wheels. The main drive mechanism preferably includes a plurality of driven gears comprising a series of concentrically spaced ring gears. Each ring gear of the plurality of driven ring gears has an inner diametrical surface and an outer diametrical surface. Each outer diametrical surface is configured to slidingly engage the inner diametrical surface of an adjacent ring gear. Further, the main drive mechanism preferably includes a biasing means for biasing each ring gear away from the first driven shaft and the second driven shaft and a selective engagement means for selectively engaging one ring gear of the plurality of ring gears with the first driven shaft and the second driven shaft.

    摘要翻译: 两轮驱动自行车包括具有转向头,座管,横杆和中空下管的主框架。 主驱动机构包括壳体,驱动主轴,至少一个从动齿圈,第一从动轴和第二从动轴。 第一从动轴可旋转地连接到壳体并且可操作地联接到至少一个从动齿圈。 第二从动轴同样地可旋转地连接到壳体并且可操作地联接到至少一个从动齿圈。 前轮驱动机构和后轮驱动机构包括一系列轴,它们本身联接到第一和第二从动轴之间以及前后轮之间。 主驱动机构优选地包括多个从动齿轮,其包括一系列同心间隔的环形齿轮。 多个从动环齿轮的每个齿圈具有内直径表面和外直径表面。 每个外直径表面构造成滑动地接合相邻齿圈的内直径表面。 此外,主驱动机构优选地包括用于将每个环形齿轮偏压离开第一从动轴和第二从动轴的偏置装置和用于选择性地将多个环形齿轮中的一个环形齿轮与第一从动轴接合的选择性接合装置,以及 第二从动轴。

    Carpet treating and treated carpet
    9.
    发明授权
    Carpet treating and treated carpet 失效
    地毯处理和处理地毯

    公开(公告)号:US4043964A

    公开(公告)日:1977-08-23

    申请号:US600401

    申请日:1975-07-30

    摘要: A durably soil-resistant carpet is provided which comprises a plurality of organic fibers having thereon a normally solid coating comprising (a) at least one phase of a water-insoluble addition polymer derived from a polymerizable ethylenically unsaturated monomer free of non-vinylic fluorine, the polymer having at least one major transition temperature higher than about 45.degree. C. and a solubility parameter of at least about 8.5, and (b) at least one phase of a water-insoluble fluorinated component containing a fluoroaliphatic radical of at least 3 carbon atoms, the fluorinated component having at least one major transition temperature higher than about 45.degree. C.; and at least one of said phases being a continuous phase. Novel compositions and processes for the treatment of carpets to render them durably soil resistant are also provided.

    摘要翻译: 提供耐久地防污地毯,其包含多个有机纤维,其上具有常规固体涂层,其包含(a)至少一种不溶于非乙烯基氟的可聚合烯属不饱和单体的不溶于水的加成聚合物, 所述聚合物具有高于约45℃的至少一个主转变温度和至少约8.5的溶解度参数,和(b)含有至少3个碳的氟代脂族基团的水不溶性氟化组分的至少一相 所述氟化组分具有高于约45℃的至少一个主转变温度; 并且所述相中的至少一个是连续相。 还提供了用于处理地毯以使其耐久耐久的新型组合物和方法。