SURGICAL REPAIR PRODUCT COMPRISING UHMWPE FILAMENTS
    1.
    发明申请
    SURGICAL REPAIR PRODUCT COMPRISING UHMWPE FILAMENTS 审中-公开
    包含超高分子量聚乙烯纤维的外科修复产品

    公开(公告)号:US20090306709A1

    公开(公告)日:2009-12-10

    申请号:US12097346

    申请日:2006-11-28

    IPC分类号: A61B17/04 D01D10/02

    CPC分类号: A61L17/04 A61L31/04 C08L23/06

    摘要: The invention relates to an elongate surgical repair product comprising a cable of which bending stiffness can be lowered, which fibrous member is a heat-set cable comprising at least 50 mass % of high-performance polyethylene yarn. The product shows very high tenacity, combined with a relatively high initial bending stiffness that is significantly reduced upon bending or flexing the member, without significant dimensional change; and allows both easy and well-controlled handling and good knot tying characteristics. The invention also relates to a method of making said clongate product.

    摘要翻译: 本发明涉及一种细长的外科修复产品,其包括可以降低弯曲刚度的电缆,该纤维构件是包含至少50质量%的高性能聚乙烯纱线的热定型电缆。 该产品显示出非常高的韧性,结合相对较高的初始弯曲刚度,其在弯曲或弯曲构件时显着减小,而没有显着的尺寸变化; 并且允许容易和良好控制的处理和良好的打结特征。 本发明还涉及制备所述顺式产品的方法。

    Process to prepare a multidentate phosphite compound
    3.
    发明授权
    Process to prepare a multidentate phosphite compound 失效
    制备多齿亚磷酸酯化合物的方法

    公开(公告)号:US5710306A

    公开(公告)日:1998-01-20

    申请号:US616747

    申请日:1996-03-15

    摘要: A process to prepare a multidentate phosphite compound according to the general formula (1) ##STR1## in which n is 2-6, R is an n-valent organic group and R.sup.1 and R.sup.2 are fused aromatic ring systems with 2 or more rings, which rings are substituted on the ortho position relative to the oxygen atom only with hydrogen, by first preparing a phosphorochloridite compound from a R.sup.1 --OH and R.sup.2 --OH alcohol compound and a phosphorus chloride compound and subsequently contacting the phosphorochloridite compound with an alcoholic compound according to R--(OH).sub.n, wherein the phosphorochloridite is prepared by performing the two steps in a solvent: a) contacting a compound with the general formula: ##STR2## in which R.sup.3 and R.sup.4 are C.sub.1 -C.sub.4 alkyl groups, with the R.sup.1 OH and R.sup.2 OH compounds, and b) contacting the resulting compound of step (a) which has the formula (3): ##STR3## with HY, wherein Y is a halogen.

    摘要翻译: 制备根据通式(1)的多齿亚磷酸酯化合物的方法,其中n是2-6,R是n价有机基团,R 1和R 2是具有2个或更多个环的稠合芳香环体系, 这些环仅在与氢气相对于氧原子的邻位上被取代,首先由R1-OH和R2-OH醇化合物和氯化磷化合物制备磷酰氯化合物,随后将其与醇化合物接触, 其中通过在溶剂中进行两个步骤来制备磷酰氯:a)使具有以下通式的化合物:其中R 3和R 4是C 1 -C 4烷基, 与R1OH和R2OH化合物反应,b)使所得到的具有式(3)的步骤(a)的化合物与式(3)与HY结合,其中Y是卤素。

    Dental tape and process for its manufacturing
    4.
    发明授权
    Dental tape and process for its manufacturing 有权
    牙科胶带及其制造工艺

    公开(公告)号:US08408219B2

    公开(公告)日:2013-04-02

    申请号:US11794247

    申请日:2005-12-27

    摘要: Dental floss products are provided which include a unitary tape of ultra-high molar mass polyethylene having an intrinsic viscosity of at least 5 dl/g, as measured in decalin at 135° C., the tape having a thickness of about 0.02-0.1 mm and a width of about 0.25-6 mm, and a tensile strength of at least 1.8 GPa. The dental floss products have very high mechanical, especially tensile strength, and show high resistance to tearing and has a low coefficient of friction. The tape can be inserted between teeth tightly together without breaking. A further advantage of the dental tape products is that most of the initial strength during flossing is retained, even if the tape separates into filaments. Processes for making a unitary tape suitable for use in a dental floss product are also provided.

    摘要翻译: 提供了牙线产品,其包括超高摩尔质量聚乙烯的单一胶带,其特性粘度至少为5dl / g,在135℃萘烷中测量,所述胶带的厚度为约0.02-0.1mm 宽度约0.25-6mm,拉伸强度至少为1.8GPa。 牙线产品具有非常高的机械性能,特别是拉伸强度,并且显示出高的抗撕裂性并且具有低的摩擦系数。 胶带可以紧密地插在齿之间,而不会断裂。 牙带产品的另一个优点是,即使带分成长丝,在牙线中大部分初始强度被保留。 还提供了用于制造适用于牙线产品的单一胶带的方法。

    Dental Tape and Process for Its Manufacturing
    5.
    发明申请
    Dental Tape and Process for Its Manufacturing 有权
    牙科胶带及其制造工艺

    公开(公告)号:US20080156345A1

    公开(公告)日:2008-07-03

    申请号:US11794247

    申请日:2005-12-27

    IPC分类号: A61C15/04

    摘要: The invention relates to a dental floss product comprising a unitary tape of ultra-high molar mass polyethylene having an intrinsic viscosity of at least 5 dl/g, as measured in decalin at 135□C, the tape having a thickness of about 0.02-0.1 mm and a width of about 0.25-6 mm, and a tensile strength of at least 1.8 GPa. The dental floss product has very high mechanical, especially tensile strength, shows high resistance to tearing and has a low coefficient of friction. The tape can be inserted between teeth tightly together without breaking. A further advantage of the dental tape is that it retains most of its initial strength during flossing, even if the tape separates into filaments. The invention further relates to a process of making a unitary tape suitable for use in a dental floss product.

    摘要翻译: 本发明涉及一种牙线产品,其包含超高摩尔质量聚乙烯的整体带,其特性粘度至少为5dl / g,在135℃的萘烷中测量,所述带的厚度为约0.02-0.1 mm,宽度约0.25-6mm,拉伸强度至少为1.8GPa。 牙线产品具有非常高的机械性能,特别是拉伸强度,显示出高的抗撕裂性,并且摩擦系数低。 胶带可以紧密地插在齿之间,而不会断裂。 牙带的另一个优点是,即使胶带分成长丝,它在牙线中保留了其初始强度的大部分。 本发明还涉及一种制造适用于牙线产品的整体带的方法。

    Process for manufacturing a prosthetic joint
    7.
    发明申请
    Process for manufacturing a prosthetic joint 审中-公开
    制造假体关节的方法

    公开(公告)号:US20090143864A1

    公开(公告)日:2009-06-04

    申请号:US10584755

    申请日:2005-01-07

    IPC分类号: A61F2/30 B29C70/04

    摘要: The application relates to a process for manufacturing a prosthetic joint with at least one loaded surface which consists at least partially of polyethylene, comprising compressing one or more layers of a woven fabric of drawn gel-spun polyethylene fibres into the desired shape in a hollow mould part using a plug at a pressure of at least 0.05 MPa and at a temperature of between 120 and 165° C. and below the crystalline melting point of the polyethylene at the prevailing temperature and pressure, without a matrix material being present, and at least the woven fabric in a layer situated on a loaded surface comprising at least 90 wt % of fibres with a titre of at most 1000 denier, and to a prosthetic joint with a crease-free surface.

    摘要翻译: 本申请涉及一种用于制造具有至少部分由聚乙烯组成的至少一个加载表面的假体关节的方法,包括将拉伸的凝胶纺丝的聚乙烯纤维的一层或多层织物在中空模具中压缩成所需形状 在主要的温度和压力下,在不存在基质材料的情况下使用塞子在至少0.05MPa的压力和120至165℃的温度下低于聚乙烯的结晶熔点,并且至少 位于负载表面上的层中的机织织物包含至少90重量%的具有至多1000旦尼尔的滴度的纤维,以及具有无折痕表面的假体关节。

    Process for the preparation of dicarboxylic acids
    9.
    发明授权
    Process for the preparation of dicarboxylic acids 失效
    二羧酸的制备方法

    公开(公告)号:US5917049A

    公开(公告)日:1999-06-29

    申请号:US989404

    申请日:1997-12-12

    摘要: Process for the preparation of a heterocyclic o-dicarboxylic acid containing at least one N atom, in which a corresponding benzo-fused heterocyclic compound containing at least one N atom is oxidised in the presence of hydrogen peroxide, a Bronsted acid and an iron compound.Preferably Fe(NO.sub.3).sub.3 is used as the iron compound and HNO.sub.3 as the Bronsted acid. The amount of iron compound to be used preferably lies between 0.1 and 2 mol. %, relative to the amount of employed benzo-fused heterocyclic compound containing at least one N atom. Even higher yields can be obtained if a copper compound or an organic electron-transferring compound is also used, in addition to the iron compound.In particular, the process according to the invention can be used to prepare 2,3-pyridine dicarboxylic acids from corresponding quinoline compounds.

    摘要翻译: 制备含有至少一个N原子的杂环二羧酸的方法,其中在过氧化氢存在下将含有至少一个N原子的相应的苯并稠合杂环化合物氧化,得到Br + E, 戊二酸和铁化合物。 优选使用Fe(NO 3)3作为铁化合物,将HNO 3用作Br + E,O + EE + nsted酸。 使用的铁化合物的量优选为0.1〜2mol。 %,相对于使用含有至少一个N原子的苯并稠合杂环化合物的量。 除了铁化合物之外,如果还使用铜化合物或有机电子传递化合物,则可以获得更高的收率。 特别地,根据本发明的方法可用于由相应的喹啉化合物制备2,3-吡啶二羧酸。