Rubber composition for tire tread and pneumatic tire using the rubber composition
    1.
    发明授权
    Rubber composition for tire tread and pneumatic tire using the rubber composition 失效
    用于轮胎胎面的橡胶组合物和使用该橡胶组合物的充气轮胎

    公开(公告)号:US07045567B2

    公开(公告)日:2006-05-16

    申请号:US10863345

    申请日:2004-06-09

    IPC分类号: C08K3/34

    摘要: The present invention provides a rubber composition that improves processability and fuel efficiency without decreasing mechanical strength and abrasion resistance, which are excellent properties of natural rubber, and a pneumatic tire using the rubber composition for a tire tread. Specifically, the present invention provides a rubber composition for a tire tread comprising 5 to 150 parts by weight of silica having nitrogen-adsorbing specific surface area of 100 to 300 m2/g and/or 5 to 150 parts by weight of carbon black having nitrogen-adsorbing specific surface area of at least 70 m2/g and dibutyl phthalate oil absorption of at least 70 ml/100 g, based on 100 parts of a rubber component containing 5 to 100% by weight of a deproteinized natural rubber having a weight average molecular weight of 1,400,000 and nitrogen content of at most 0.1% by weight, and a pneumatic tire comprising the rubber composition for a tire tread.

    摘要翻译: 本发明提供一种改善加工性和燃料效率而不降低机械强度和耐磨性的橡胶组合物,其是天然橡胶的优异性能,以及使用轮胎胎面用橡胶组合物的充气轮胎。 具体地说,本发明提供一种轮胎胎面用橡胶组合物,其特征在于,具有5〜150重量份的氮吸附比表面积为100〜300m 2 / g的二氧化硅和/或5〜150 基于100份橡胶组分,具有至少70m 2 / g的氮吸附比表面积的碳黑的重量份和邻苯二甲酸二丁酯油的吸收至少为70ml / 100g, 含有5〜100重量%的重均分子量为1400万,氮含量在0.1重量%以下的脱蛋白天然橡胶,以及包含轮胎胎面用橡胶组合物的充气轮胎。

    Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the method
    2.
    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
    3.
    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。

    Removal of protein from natural rubber latex articles
    4.
    发明授权
    Removal of protein from natural rubber latex articles 失效
    从天然橡胶胶乳制品中去除蛋白质

    公开(公告)号:US6107455A

    公开(公告)日:2000-08-22

    申请号:US973578

    申请日:1997-12-08

    IPC分类号: C08C1/04

    摘要: A method for lowering the extractable protein content in a natural rubber latex to below 30 parts per million (ppm) comprises the steps of treating by washing a rubber article, such as a rubber glove, with an aqueous solution containing a soluble silicate and, optionally, a protease. The methods claimed effectively reduce the allergenicity of the articles so treated.

    摘要翻译: PCT No.PCT / DK96 / 00194 Sec。 371 1997年12月8日第 102(e)1997年12月8日PCT PCT 1996年4月30日PCT公布。 公开号WO97 / 01581 日本1997年1月16日将天然橡胶胶乳中可提取蛋白质含量降低至30ppm以下的方法包括以下步骤:用橡胶手套等橡胶制品洗涤含有 可溶性硅酸盐和任选的蛋白酶。 所要求的方法有效地降低了如此处理的制品的过敏原性。

    Rubber composition for tire tread and pneumatic tire using the rubber composition
    8.
    发明申请
    Rubber composition for tire tread and pneumatic tire using the rubber composition 失效
    用于轮胎胎面的橡胶组合物和使用该橡胶组合物的充气轮胎

    公开(公告)号:US20050027060A1

    公开(公告)日:2005-02-03

    申请号:US10863345

    申请日:2004-06-09

    摘要: The present invention provides a rubber composition that improves processability and fuel efficiency without decreasing mechanical strength and abrasion resistance, which are excellent properties of natural rubber, and a pneumatic tire using the rubber composition for a tire tread. Specifically, the present invention provides a rubber composition for a tire tread comprising 5 to 150 parts by weight of silica having nitrogen-adsorbing specific surface area of 100 to 300 m2/g and/or 5 to 150 parts by weight of carbon black having nitrogen-adsorbing specific surface area of at least 70 m2/g and dibutyl phthalate oil absorption of at least 70 ml/100 g, based on 100 parts of a rubber component containing 5 to 100% by weight of a deproteinized natural rubber having a weight average molecular weight of 1,400,000 and nitrogen content of at most 0.1% by weight, and a pneumatic tire comprising the rubber composition for a tire tread.

    摘要翻译: 本发明提供一种改善加工性和燃料效率而不降低机械强度和耐磨性的橡胶组合物,其是天然橡胶的优异性能,以及使用轮胎胎面用橡胶组合物的充气轮胎。 具体而言,本发明提供一种轮胎胎面用橡胶组合物,其特征在于,具有5〜150重量份的氮吸附比表面积为100〜300m 2 / g的二氧化硅和/或5〜150重量份的碳 具有至少70m 2 / g的氮吸附比表面积的黑色和邻苯二甲酸二丁酯油吸收量至少为70ml / 100g,基于100份含有5至100重量%脱蛋白质的橡胶组分 天然橡胶的重均分子量为140万,氮含量为0.1重量%以下的充气轮胎,以及包含轮胎胎面用橡胶组合物的充气轮胎。

    Dip-molded medical devices from cis-1,4-polyisoprene
    10.
    发明授权
    Dip-molded medical devices from cis-1,4-polyisoprene 有权
    来自顺式-1,4-聚异戊二烯的浸渍式医疗器械

    公开(公告)号:US06329444B1

    公开(公告)日:2001-12-11

    申请号:US09172965

    申请日:1998-10-14

    IPC分类号: C08L910

    摘要: Medical devices of synthetic rubber are prepared from cis-1,4-polyisoprene by dip molding without the use of sulfur containing components. The devices have surprisingly favorable tensile characteristics despite what is known in regard to synthetic cis-1,4-polyisoprene. In addition, the absence of both the proteins present in natural rubber and the sulfur components that are typically used in vulcanization of both natural rubber and cis-1,4-polyisoprene of the prior art renders the devices freely usable without causing the user to suffer Type I or Type IV allergic reactions that typically arise from contact with natural rubber.

    摘要翻译: 合成橡胶的医疗装置由顺式-1,4-聚异戊二烯通过浸渍成型制备而不使用含硫成分。 尽管关于合成的顺式-1,4-聚异戊二烯是已知的,但是这些装置具有惊人的有利的拉伸特性。 此外,天然橡胶中存在的蛋白质和通常用于现有技术的天然橡胶和顺式-1,4-聚异戊二烯的硫化中的硫成分都不存在,使得装置可自由使用而不会使使用者遭受 通常与天然橡胶接触引起的I型或IV型过敏反应。