sulfenamide, vulcanization accelerator containing the

  • us8546582b2 - sulfenamide, vulcanization accelerator

    US8546582B2 - Sulfenamide, vulcanization accelerator

    Also provided is an N-alkyl-N-t-butylbenzothiazole-2-sulfenamide represented by formula [I]. The vulcanization accelerator is a vulcanization accelerator for rubber, containing this compound. Furthermore provided is a process for producing the vulcanization accelerator. wherein R represents methyl, ethyl, n-propyl, or n-butyl.

  • wo1995030665a1 - novel sulfenamide accelerators and rubber

    WO1995030665A1 - Novel sulfenamide accelerators and rubber

    Novel mono- and bis-benzothiazole sulfenamide compounds based on primary amines of formula (I) are provided, wherein R is selected from the group consisting of groups represented by formulae (i) and (ii) which may be employed as rubber vulcanization accelerators having excellent scorch safety.

  • vulcanization accelerators - the next level solution for tire

    Vulcanization Accelerators - The Next Level Solution for Tire

    Sulfenamide class accelerators are commonplace in the tire industry in light of delayed action, as well as faster cure rate during vulcanization of rubber compounds containing furnace blacks. Subsequent increase in amount of sulfenamide accelerators improves in scorch delay, cure rate, and state of cure.

  • a benzoxazole sulfenamide accelerator: synthesis, structure

    A benzoxazole sulfenamide accelerator: Synthesis, structure

    A benzoxazole sulfenamide and its related zinc compound were synthesized and characterized, which are shown to be useful accelerators for sulfur vulcanization. In comparison with the benzothiazole accelerator, the benzoxazole sulfenamide revealed nearly no reversion, an improved feature that is desirable for tire industry.

  • vulcanization accelerators

    Vulcanization Accelerators

    Vulcanization Accelerator. is a compound that increases the speed of vulcanization and that enables vulcanization to proceed at lower temperature and with greater efficiency. Vulcanization accelerators can be classified as primary and secondary accelerators. Important primary accelerators include thiazoles and sulfenamides.

  • isoprene reclaimed rubber product vulcanization accelerator

    Isoprene reclaimed rubber product vulcanization accelerator

    When using isoprene reclaimed rubber to produce rubber products, sulfenamide accelerators have long scorch time and high processing safety, and the mechanical properties and aging resistance of reclaimed vulcanizates after vulcanization are better; sulfenamide accelerators As the main accelerator, the thiuram 1JLYY1115 accelerator is used in

  • isoprene reclaimed rubber product vulcanization accelerator

    Isoprene reclaimed rubber product vulcanization accelerator

    When using isoprene reclaimed rubber to produce rubber products, sulfenamide accelerators have long scorch time and high processing safety, and the mechanical properties and aging resistance of reclaimed vulcanizates after vulcanization are better; sulfenamide accelerators As the main accelerator, the thiuram 1JLYY1115 accelerator is used in

  • studies of conventional sulfur vulcanization of sbr rubber

    Studies of conventional sulfur vulcanization of SBR rubber

    Six SBR samples containing various N-tert-butyl-2-benzothiazole sulfenamide (TBBS) accelerator: sulfur ratios (within) the range of conventional (CV) sulfur vulcanization system were studied using multi-capillary column ion mobility spectrometry (MCC-IMS) technique. For these analysis, calibration/dilution curves were established.

  • manifestation of accelerator type and vulcanization system

    Manifestation of accelerator type and vulcanization system

    The lowest stress is observed for benzothiazole accelerator (e.g., MBT) and the highest stress for sulfenamide accelerator (e.g., CBS). The mechanical properties such as modulus at 50% and 100% elongation, tensile strength, elongation at break, and hardness of different accelerators containing SBR/DeVulcSBR vulcanizates are presented in Table 1

  • studies on novel binary accelerator system in sulfur

    Studies on novel binary accelerator system in sulfur

    The vulcanization of natural rubber (NR) latex can be effectively carried out at low temperatures by using binary accelerator systems containing thiourea (TU) as a secondary accelerator.

  • sulfenamide accelerators and rubber compositions containing

    Sulfenamide accelerators and rubber compositions containing

    This invention is also directed to vulcanizable rubber compositions containing natural rubber, synthetic rubber or mixtures thereof, elemental sulfur and, as vulcanization accelerator, the benzothiazole sulfenamide compounds of this invention.

  • a new secondary accelerator for the sulfur vulcanization

    A new secondary accelerator for the sulfur vulcanization

    The vulcanization of natural rubber (NR) latex can be effectively carried out at low temperatures by using binary accelerator systems containing thiourea (TU) as a secondary accelerator. It was reported that sulfur‐containing nucleophiles such as thiourea enable the primary accelerator to become effective even at low temperatures, indicating