Method for producing a rubber composition
    21.
    发明授权
    Method for producing a rubber composition 有权
    橡胶组合物的制造方法

    公开(公告)号:US08293827B2

    公开(公告)日:2012-10-23

    申请号:US12612295

    申请日:2009-11-04

    IPC分类号: C04B24/26

    摘要: A method for producing a rubber composition, the method including: preparing a modified natural rubber by releasing protein from rubber particles in a natural rubber latex by adding at least one organic compound selected from formaldehyde, paraformaldehyde, formalin, and glyoxal to the above mentioned natural rubber latex and then drying so as to include the released protein therein; and mixing at least one selected from carbon black and silica in this modified natural rubber. Such method reduces viscosity and improves molding processibility of the rubber composition, as well as reducing hysteresis loss.

    摘要翻译: 一种橡胶组合物的制造方法,其特征在于,通过向上述天然橡胶中加入至少一种选自甲醛,多聚甲醛,福尔马醛和乙二醛的有机化合物,在天然橡胶胶乳中从橡胶粒子释放蛋白质来制备改性天然橡胶 橡胶胶乳,然后干燥,以便在其中包含释放的蛋白质; 并在该改性天然橡胶中混合选自碳黑和二氧化硅中的至少一种。 这种方法降低了粘度并提高了橡胶组合物的成型加工性,并且降低了滞后损耗。

    RUBBER COMPOSITION AND HEAVY DUTY PNEUMATIC RADIAL TIRE USING THE SAME
    23.
    发明申请
    RUBBER COMPOSITION AND HEAVY DUTY PNEUMATIC RADIAL TIRE USING THE SAME 审中-公开
    橡胶组合物和重型气动径向轮胎

    公开(公告)号:US20100218864A1

    公开(公告)日:2010-09-02

    申请号:US12738001

    申请日:2008-10-14

    申请人: Katsuyuki Takaku

    发明人: Katsuyuki Takaku

    摘要: This invention provides a rubber composition capable of improving a durability to heat buildup of a heavy duty pneumatic radial tire by applying to a cushion rubber of the tire to lower heat buildup of the cushion rubber without lowering a fracture strength of the cushion rubber as well as a tire using such a rubber composition and being excellent in the durability to heat buildup. The rubber composition is characterized in that 25-45 parts by mass of carbon black having a nitrogen adsorption specific surface area (N2SA) of not less than 60 m2/g as a filler is compounded based on 100 parts by mass of a rubber component comprising at least one of natural rubber and synthetic isoprene rubber, and a modulus at 50% elongation is not less than 1.1 MPa, and a loss tangent (tan δ) at 25° C. and 2% strain and an amount of carbon black compounded based on 100 parts by mass of the rubber component satisfy a relation of the following equation (I): tan δ/amount of carbon black compounded≦0.0015  (I).

    摘要翻译: 本发明提供一种橡胶组合物,其能够通过向轮胎的缓冲橡胶施加耐久性而提高耐久性,从而降低缓冲橡胶的发热,而不降低缓冲橡胶的断裂强度,以及 使用这种橡胶组合物的轮胎,并且具有优异的耐热发热性。 橡胶组合物的特征在于,相对于100质量份的橡胶成分,配合25〜45质量份的作为填料的氮吸附比表面积(N 2SA)为60m 2 / g以上的炭黑, 天然橡胶和合成异戊二烯橡胶中的至少一种,50%伸长率的模量为1.1MPa以上,在25℃,2%应变下的损耗角正切(tanδ) 对于100质量份的橡胶成分,满足以下等式(I)的关系:tanδ/炭黑复合量≦̸ 0.0015(I)。

    GUAYULE NATURAL RUBBER LATEX THIN FILM ARTICLES
    24.
    发明申请
    GUAYULE NATURAL RUBBER LATEX THIN FILM ARTICLES 有权
    GUAYULE天然橡胶LATEX薄膜文章

    公开(公告)号:US20090163689A1

    公开(公告)日:2009-06-25

    申请号:US11960678

    申请日:2007-12-19

    IPC分类号: C08G83/00 A61F6/04 B29D23/00

    摘要: The present disclosure provides for a formula and process for making elastomeric rubber thin film articles. In particular, the formula and process is a system which produces non-Hevea or Guayule natural rubber latex (GNRL) thin film articles which have a thickness of 30-80 microns (0.03-0.08 mm), and preferably less than 40 microns (0.04 mm). These thin film articles exhibit physical strength properties similar to that of Hevea brazilensis natural rubber latex (NRL). More specifically, the disclosed thin rubber thin film articles exhibit unaged tensile strength of at least 24 MPa (about 3500 psi) and aged tensile strength of at least 19 MPa (about 2800 psi).

    摘要翻译: 本公开提供了用于制备弹性体橡胶薄膜制品的配方和方法。 特别地,该配方和方法是一种制备厚度为30-80微米(0.03-0.08毫米),优选小于40微米(0.04)的非均匀或瓜埃勒天然橡胶胶乳(GNRL)薄膜制品的系统 mm)。 这些薄膜制品具有类似于三叶草天然橡胶胶乳(NRL)的物理强度性能。 更具体地,所公开的薄橡胶薄膜制品具有至少24MPa(约3500psi)的未老化拉伸强度和至少19MPa(约2800psi)的老化拉伸强度。

    METHOD FOR PRODUCING TIRE MEMBER
    30.
    发明申请

    公开(公告)号:US20180105654A1

    公开(公告)日:2018-04-19

    申请号:US15670230

    申请日:2017-08-07

    发明人: Shuhei Koyama

    IPC分类号: C08J3/24 C08K5/16

    摘要: A method for producing a tire member yielded using at least a filler, a dispersing solvent and a rubber latex solution as raw materials comprises at least a step (iii) of dehydrating the rubber solidified product containing the filler to produce the tire member. The step (iii) is a step of adding, to the rubber solidified product containing the filler, a peptizer and a compound represented by the following formula (I): and dispersing the compound represented by the formula (I) in the rubber solidified product containing the filler, this product containing water, while dehydrating the rubber solidified product containing the filler.