Low allergenic natural rubber and method of preparing low allergenic natural rubber latex
    1.
    发明授权
    Low allergenic natural rubber and method of preparing low allergenic natural rubber latex 有权
    低过敏天然橡胶及其制备低过敏天然橡胶胶乳的方法

    公开(公告)号:US06784281B2

    公开(公告)日:2004-08-31

    申请号:US09986374

    申请日:2001-11-08

    IPC分类号: C08L104

    摘要: A method of preparing a low allergic natural rubber latex which is less likely to cause allergy, comprising adding a protease having an exopeptidase activity to a natural rubber latex and aging the natural rubber latex, thereby to decompose a protein in the latex to such a degree that the protein and a protein decomposition product, which have a number-average molecular weight of 4500 or more, are not detected; a method of preparing a deproteinized natural rubber latex which is less likely to cause allergy, comprising adding an alkali protease to a natural rubber latex, thereby to decompose a protein in the latex, adding a protease having an exopeptidase activity, thereby to further decompose the protein and a decomposition product thereof in the latex, and removing the protein and the decomposition product thereof; a low allergic natural rubber obtained by a decomposition treatment of a protein, wherein the protein and a protein decomposition product, which have a number-average molecular weight of 4500 or more, are not detected; and a deproteinized natural rubber obtained by a decomposition treatment and a removing treatment of a protein, wherein the content of the protein is 0.02% or less in terms of a nitrogen content, an absorption at 3280 cm−1 is not recognized in an infrared absorption spectrum, and the protein and a protein decomposition product, which have a number-average molecular weight of 4500 or more, are not detected.

    摘要翻译: 一种制备不太可能引起过敏的低过敏性天然橡胶胶乳的方法,包括向天然橡胶胶乳中加入具有外肽酶活性的蛋白酶,并使天然橡胶胶乳老化,从而将胶乳中的蛋白质分解至此程度 没有检测到数均分子量为4500以上的蛋白质和蛋白质分解产物; 一种制备不太可能引起过敏的脱蛋白天然橡胶胶乳的方法,包括向天然橡胶胶乳中加入碱性蛋白酶,从而分解胶乳中的蛋白质,加入具有外肽酶活性的蛋白酶,从而进一步分解 蛋白质及其分解产物,除去蛋白质及其分解产物; 通过蛋白质的分解处理获得的低过敏性天然橡胶,其中未检测到数均分子量为4500以上的蛋白质和蛋白质分解产物; 以及通过分解处理和蛋白质去除处理得到的脱蛋白天然橡胶,其中,以氮含量计,蛋白质的含量为0.02%以下,在3280cm -1的吸收在 红外吸收光谱,并且没有检测到数均分子量为4500以上的蛋白质和蛋白质分解产物。

    Modified natural rubber
    2.
    发明授权
    Modified natural rubber 失效
    改性天然橡胶

    公开(公告)号:US06797783B1

    公开(公告)日:2004-09-28

    申请号:US08941132

    申请日:1997-09-30

    IPC分类号: C08F25506

    摘要: A modified natural rubber is disclosed, which is obtained by modifying a deproteinized natural rubber having a nitrogen content of less than 0.10% by weight. A process for improving the graft ratio and the graft efficiency of natural rubber and a process for improving the epoxidation ratio of natural rubber are also disclosed. The modified natural rubber of the present invention has a high modifying efficiency and thus shows an excellent modifying effect. It is also useful as a means for preventing allergy.

    摘要翻译: 公开了通过改性氮含量低于0.10重量%的脱蛋白天然橡胶而得到的改性天然橡胶。 还公开了改善天然橡胶的接枝率和接枝效率的方法以及改善天然橡胶的环氧化比例的方法。 本发明的改性天然橡胶具有高的改性效果,因此显示出优异的改性效果。 它也可用作防止过敏的手段。

    Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the method
    3.
    发明授权
    Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the method 失效
    阳离子脱蛋白天然橡胶胶乳,其制备方法以及该方法中使用的处理剂

    公开(公告)号:US06462159B1

    公开(公告)日:2002-10-08

    申请号:US09657816

    申请日:2000-09-08

    IPC分类号: C08F11234

    摘要: Disclosed are a cationic deproteinized natural rubber latex, in which rubber particles are positively charged and the concentration of said rubber particles is from 40 to 65% by weight and that the viscosity at 25° C. of said latex is 200 mPa·s or less, a method of preparing said latex which comprises subjecting to a deprotenization treatment using a proteolytic enzyme and a deproteinizing agent made of one or more surfactant selected from cationic and nonionic surfactants, and optionally adding a post additive comprising a cationic or nonionic surfactant as an active component, thereby to enable both surfactants described above to coexist, and a treating agent used in the same.

    摘要翻译: 公开了一种阳离子去蛋白天然橡胶胶乳,其中橡胶颗粒带正电并且所述橡胶颗粒的浓度为40至65重量%,并且所述胶乳的25℃下的粘度为200mPa.s以下 制备所述胶乳的方法,其包括使用蛋白水解酶和由一种或多种选自阳离子和非离子表面活性剂的表面活性剂制成的脱蛋白剂进行脱苹果化处理,以及任选地加入包含阳离子或非离子表面活性剂的后添加剂作为活性物质 从而使上述两种表面活性剂共存,以及其中使用的处理剂。

    Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same
    4.
    发明授权
    Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same 失效
    脱蛋白剂及使用其制备阳离子去蛋白天然橡胶胶乳的方法

    公开(公告)号:US06265479B1

    公开(公告)日:2001-07-24

    申请号:US09657411

    申请日:2000-09-08

    IPC分类号: C08L702

    摘要: Disclosed are a deproteinizing agent comprising a proteolytic enzyme and one or more cationic surfactants selected from the group consisting of an alkylamine salt, an alkylamine derivative and quaternized compounds thereof; and a method of preparing a cationic deproteinized natural rubber latex, which comprises adding said deproteinizing agent to a field latex or an ammonia-treated latex thereby subjecting the latex to a deproteinization treatment and purifying the rubber particles in the latex.

    摘要翻译: 公开了一种脱蛋白剂,其包含蛋白水解酶和一种或多种选自烷基胺盐,烷基胺衍生物和其季铵化合物的阳离子表面活性剂; 以及制备阳离子去蛋白天然橡胶胶乳的方法,其包括将所述脱蛋白剂添加到现场胶乳或经氨处理的胶乳中,由此使胶乳进行脱蛋白处理并纯化胶乳中的橡胶颗粒。

    Process for producing raw rubber
    6.
    发明授权
    Process for producing raw rubber 失效
    生橡胶生产工艺

    公开(公告)号:US5585459A

    公开(公告)日:1996-12-17

    申请号:US241714

    申请日:1994-05-12

    IPC分类号: C08C1/04 C08C1/14 C08C1/15

    CPC分类号: C08C1/15 C08C1/04 C08C1/14

    摘要: A process for producing raw rubber from a deproteinized natural rubber is disclosed, which comprises coagulating rubber particles in the deproteinized natural rubber latex by: (1) adding a nonionic surfactant having a cloud point of from 20.degree. to 100.degree. C. and a molecular weight of 300 or more to the deproteinized natural rubber latex and heating the latex to a temperature not lower than the cloud point of the nonionic surfactant; or (2) adding a coagulation assistant selected from the group consisting of: (a) an anionic surfactant, (b) an amphoteric surfactant, (c) a nonionic surfactant, (d) a nonionic or amphoteric oligomer or polymer, and (e) an anionic oligomer or polymer, to the deproteinized natural rubber latex; and then recovering the coagulated rubber particles. According to the process of the present invention, raw rubber containing substantially no metal ion can be produced with a high efficiency.

    摘要翻译: 公开了一种从脱蛋白天然橡胶生产生橡胶的方法,其包括:通过以下步骤将脱蛋白天然橡胶胶乳中的橡胶颗粒凝结:(1)加入浊点为20至100℃的非离子表面活性剂和分子 重量为300以上的脱蛋白天然橡胶胶乳,并将胶乳加热至不低于非离子表面活性剂的浊点的温度; 或(2)加入选自以下的凝血助剂:(a)阴离子表面活性剂,(b)两性表面活性剂,(c)非离子表面活性剂,(d)非离子或两性低聚物或聚合物,和 )阴离子低聚物或聚合物; 然后回收凝固的橡胶颗粒。 根据本发明的方法,可以高效率地生产基本上不含金属离子的生橡胶。

    Wiring harness arrangement designing apparatus and method therefor
    9.
    发明授权
    Wiring harness arrangement designing apparatus and method therefor 有权
    线束布置设计及其方法

    公开(公告)号:US06457165B1

    公开(公告)日:2002-09-24

    申请号:US09450222

    申请日:1999-11-29

    IPC分类号: G06F1750

    摘要: A route information inputting section inputs route information including route drawing information on routes of a plurality of wiring harnesses to be arranged within a vehicle and route length information of each wiring harness. A wiring information memory stores wiring information including auxiliary unit information on a plurality of auxiliary units connected to the plurality of wiring harnesses and wire information on attributes of a plurality of wires connected between the plurality of auxiliary units. A display section displays on a screen a route drawing based on the route information input. An auxiliary unit position assigning section assigns positions of the plurality of auxiliary units on the route drawing displayed on the screen based on the auxiliary unit information included in the wiring information stored by the wiring information memory. A route/wiring linking section mutually wire-connects the plurality of auxiliary units of which positions have been assigned by the auxiliary unit position assigning section through a selective route on the route drawing, and links the wiring information on the plurality of wire-connected auxiliary units to the route information on the selected route.

    摘要翻译: 路线信息输入部输入路线信息,其中包括路线图信息,该路线信息涉及要布置在车辆内的多条线束的路线,并且布线每个线束的路线长度信息。 接线信息存储器将包括辅助单元信息的布线信息存储在与多个线束连接的多个辅助单元上,以及关于连接在多个辅助单元之间的多个电线的属性的线信息。 显示部分根据输入的路径信息在屏幕上显示路线图。 辅助单元位置分配单元基于由布线信息存储器存储的布线信息中包括的辅助单元信息,在屏幕上显示的路线图上分配多个辅助单元的位置。 路线/接线连接部分通过路线图上的选择性路线将由辅助单元位置分配部分分配的位置的多个辅助单元相互连接,并且将多个辅助线路辅助单元 单位到所选路线上的路线信息。

    Deproteinized natural rubber latex and its production process
    10.
    发明授权
    Deproteinized natural rubber latex and its production process 失效
    脱蛋白天然橡胶胶乳及其生产工艺

    公开(公告)号:US5569740A

    公开(公告)日:1996-10-29

    申请号:US390031

    申请日:1995-02-17

    CPC分类号: B01D61/145 B01D63/16 C08C1/04

    摘要: There are provided a deproteinized natural rubber latex which comprises a purified product of proteolytically treated natural rubber latex and contains fine particles of natural rubber latex, a deproteinized natural rubber which comprises a dehydrated product of the deproteinized natural rubber latex, and a process for the production of deproteinized natural rubber latex which comprises subjecting a latex solution prepared by (1) adding water and/or a surfactant to a natural rubber latex and then proteolytically treating the resulting latex solution or (2) proteolytically treating a natural rubber latex and then adding water and/or a surfactant to the treated natural rubber latex, to purification using a rotary plate membrane separation apparatus. The deproteinized natural rubber latex contains substantially no protein, is excellent in film-forming property, and provides a raw rubber film having excellent green strength, and the process can produce the deproteinized natural rubber latex in a high yield with high production efficiency.

    摘要翻译: 提供了一种脱蛋白天然橡胶胶乳,其包含蛋白水解处理的天然橡胶胶乳的纯化产物,并含有天然橡胶胶乳的细颗粒,包含脱蛋白天然橡胶胶乳的脱水产物的脱蛋白天然橡胶和生产方法 的脱蛋白天然橡胶胶乳,其包括将(1)将水和/或表面活性剂加入天然橡胶胶乳制备的胶乳溶液,然后蛋白水解处理所得胶乳溶液或(2)蛋白水解处理天然橡胶胶乳,然后加入水 和/或表面活性剂加入到经处理的天然橡胶胶乳中,使用旋转板膜分离装置进行纯化。 脱蛋白天然橡胶胶乳基本上不含蛋白质,成膜性优异,并且提供具有优异生坯强度的生橡胶膜,该方法可以高产率高生产率地生产脱蛋白天然橡胶胶乳。