• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This disclosure relates to a continuous process for the preparation of rubber masterbatches.
    公开号:SU910124A3
    申请号:SU772469260
    申请日:1977-04-14
    公开日:1982-02-28
    发明作者:Хагопьян Эривен；Кларк Морган Аллан
    申请人:Кабот Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    39 a device for the preparation of a calcitex mixture. In this example, a stainless steel pipe with smooth inner stacks with a diameter of 1.27 cm and a length (1.52 m is sufficient to separate the black rubber from the water) is used for the mixing stage. A carbon black suspension is fed into the stainless steel pipe. , 8 wt.% With a mass flow rate of 771 g / min. The particulate slurry is introduced in the axial direction, which helps to maintain conditions with small disturbances during the stage of separation of carbon black from water. This is a positive factor for obtaining a powdery matt The best quality mixture. Delamination (separation of carbon black from the water of the latex mixture formed by soot then occurs within a certain period of time. Usually, delamination in a known method is completed within 2 minutes, and in this example is stratified in about 7 seconds. For that , in order to coagulate the exfoliated mixture of the gelathex mixture, use an appropriate mixing device, a pipe with an inner diameter (1.9 cm), in which the separated mixture is mixed with the coagulating the liquid. The layered blackjack mixture is introduced into the mixing device, in the form of a coherent flow in the direction of the cross section to the flow axis of the coagulating liquid flowing into the mixing device. As a result of this method, the flow of the exfoliated carbon-jelly mixture with the flow of coagulating liquid is contacted, proper disturbance is achieved and the flow of the exfoliated mixture is sprayed and coagulation begins. In addition, it is possible to finely regulate the mixing process. The coagulating fluid used in this case is an acidified aqueous solution, having in our example a pH between 2.5 and 3. It is obtained by adding acetic acid to water at a volumetric flow rate (1980 l / min) and, if desired, as is done in this case. 1 weight of coagulant aqueous solution is added at a volume flow rate of 7 cm / min. After mixing, the resulting mixture is passed through an appropriate reactor, in our example, such is a tube with an inner diameter (2.5 cm) having a length sufficient to ensure completion of the coagulation of the gelathex mixture, which occurs not in a time from 15 to 30 seconds. The rubber crumb is then separated using any known method. Rubber crumb is obtained with a yield of about 1001 at a rate of 242.2 g / min, after which it is washed with water and dried. The liquid medium is returned to the coagulating fluid stream, where it is used as much as possible. Excess liquid is simply discharged as waste liquid. EXAMPLE 2. In order to evaluate the performance characteristics of the masterbatch in comparison with a known method, the following formulations are made, including: I II The masterbatch from example 1 155 Natural rubber- 100 Soda-55 Zinc oxide C Stearic acid 2 2 Santokur 0.875 0.875 Algerite Resin DI I Recipes J and II are heated before being examined. The obtained characteristics are shown in the table. From the above data, it follows that the proposed method allows to obtain rubber with better physical and mechanical properties and abrasion resistance. In addition, it was found that the baby according to the proposed method has better dispersion characteristics than the known one.
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    权利要求:
    Claims (1)
    [1]
    The invention simplifies the method, the suspension of soot
    The method of obtaining the carbon black rubber, and coagulation is carried out
    ka, consisting in mixing the aqueous sous-introduction of the resulting gelathex
    sootous rubber latex rubber with a mixture in the form of a coherent flow in
    following coagulation of the resulting soot-flow of the coagulating fluid and the directional mixture with an aqueous solution of the dusting of the priest (cross section to the axis of the walking fluid with the formation of a flow of the coagulating fluid, rubber crumb, its separation, pro-Sources of information,
    washing and drying, which are different in consideration during the examination so that, in order to eliminate you- 1. US Patent No.
    soothenie soot of latex and increase Cl. 260-A1.5, publ. 12.27.66
    quality of black rubber, as well as (prototype).
    are introduced into the latex stream in axially
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    同族专利:
    公开号 | 公开日
    MY8400365A|1984-12-31|
    FR2348240A1|1977-11-10|
    JPS5410576B2|1979-05-08|
    DE2714265A1|1977-11-03|
    IN144760B|1978-07-01|
    JPS52151338A|1977-12-15|
    NL7703608A|1977-10-18|
    CS191339B2|1979-06-29|
    SG56383G|1984-07-27|
    AU505709B2|1979-11-29|
    FR2348240B1|1983-11-04|
    HK92884A|1984-11-30|
    PL105366B1|1979-10-31|
    US4029633A|1977-06-14|
    BE853516A|1977-08-01|
    ES457790A1|1978-03-01|
    CA1057440A|1979-06-26|
    BR7702088A|1978-01-24|
    DE2714265C3|1981-08-27|
    AU2391277A|1978-10-12|
    DE2714265B2|1980-12-11|
    GB1567855A|1980-05-21|
    IT1082497B|1985-05-21|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/676,970|US4029633A|1976-04-14|1976-04-14|Carbon black-rubber masterbatch production|
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