Preparation of components and articles with directed high frequency energy heated silica-rich rubber components containing high softening point polymer and sulfur curative
    1.
    发明授权
    Preparation of components and articles with directed high frequency energy heated silica-rich rubber components containing high softening point polymer and sulfur curative 失效
    制备具有定向高频能量的部件和制品加热含有高软化点聚合物和硫固化剂的富二氧化硅橡胶组分

    公开(公告)号:US07087660B2

    公开(公告)日:2006-08-08

    申请号:US10629421

    申请日:2003-07-29

    IPC分类号: C08F2/46 C08L23/26

    摘要: This invention relates to a process of preparation of components and articles of manufacture containing at least one of such components, such as tires, and the resulting prepared components and fabricated articles, by use of directed high frequency energy internally heated silica-rich rubber compositions which contain sulfur curative and a significant content of high softening point polymer, namely a polymer and/or elastomer having a melting point (Tm) and/or high glass transition temperature (Tg) above 0° C., and particularly above 30° C., and which contains a minimal, if any, carbon black reinforcement. Such directed high frequency energy heating is provided, individually, by directed radio frequency (electromagnetic) radiation and/or by directed microwave radiation. Representative examples of such polymers may be, for example, trans 1,4-polybutadiene, 3,4-polyisoprene, natural cis 1,4-polyisoprene rubber, isoprene/butadiene copolymer having a high trans 1,4-polybutadiene component, polystyrene, styrene/butadiene rubber having a high trans 1,4-polybudadiene component and styrene/butadiene rubber having a high styrene content.

    摘要翻译: 本发明涉及通过使用定向高频能内部加热的富含二氧化硅的橡胶组合物制备包含至少一种诸如轮胎的组分和所得制备的组分和制造的制品的组分和制品的方法, 含有硫化固化剂和显着含量的高软化点聚合物,即具有高于0℃,特别是高于30℃的熔点(Tm)和/或高玻璃化转变温度(Tg)的聚合物和/或弹性体。 ,并且其包含最小的(如果有的话)炭黑增强物。 通过定向射频(电磁)辐射和/或通过定向微波辐射单独提供这种定向高频能量加热。 这种聚合物的代表性实例可以是例如反式1,4-聚丁二烯,3,4-聚异戊二烯,天然顺式1,4-聚异戊二烯橡胶,具有高反式1,4-聚丁二烯组分的异戊二烯/丁二烯共聚物,聚苯乙烯, 具有高反式1,4-聚丁二烯组分的苯乙烯/丁二烯橡胶和苯乙烯含量高的苯乙烯/丁二烯橡胶。

    Radio frequency heating of trans-1, 4-polybutadiene
    2.
    发明授权
    Radio frequency heating of trans-1, 4-polybutadiene 失效
    反式-1,4-聚丁二烯的射频加热

    公开(公告)号:US5854351A

    公开(公告)日:1998-12-29

    申请号:US879350

    申请日:1997-06-20

    IPC分类号: C08J3/28 C08L23/26

    CPC分类号: C08J3/28 C08J2309/00

    摘要: This invention specifically discloses a process for heating trans-1,4-polybutadiene to a temperature at which it can be processed without causing oxidative gelation which comprises heating the trans-1,4-polybutadiene by exposing it to electromagnetic radiation having a frequency in the range of about 2 MHz to about 80 MHz, wherein the trans-1,4-polybutadiene is oil-extended with at least 10 phr of a processing oil.

    摘要翻译: 本发明具体公开了一种将反式-1,4-聚丁二烯加热至可以加工而不引起氧化凝胶化的温度的方法,该方法包括通过将反式1,4-聚丁二烯暴露于具有 约2MHz至约80MHz的范围,其中反式-1,4-聚丁二烯用至少10phr的加工油油扩展。