56706-10-6

Hazard Information

Chemical Properties

Yellowish clear liquid

Flammability and Explosibility

Notclassified

Synthesis

5089-70-3

14814-09-6

60764-86-5

56706-10-6

General procedure for the synthesis of (3-mercaptopropyl)triethoxysilane (MPTES), compounds (CAS:60764-86-5) and bis-[3-(triethoxysilyl)propyl]-disulfide (TESPD) from 3-chloropropyltriethoxysilane (CPTES): during the reaction, 50 wt.% NaHSO4 was added drop-wise to a NaHS solution solution. 325 g (2.69 mol) of NaHS solution with 8.2 g (0.0124 mol) of tetrabutylammonium bromide (TBAB) solution were added to a glass reactor, mixed well and heated to 75 °C. Subsequently, NaHSO4 solution was added slowly and dropwise just before the imminent addition. Next, CPTES was added. 497.8 g (2.07 moles) of CPTES was added to the reaction mixture within 8 min. the addition of NaHSO4 solution needed to be completed within 30 min. After 5 hours of reaction, the organic phase was separated and analyzed by gas chromatography (GC). The analysis showed that the product contained 2.0% wt. of CPTES, 87.6% wt. of MPTES, 2.7% wt. of TESPM, and 0.7% wt. of TESPD.Finally, the product was distilled under vacuum to yield MPTES with a purity of 95.4%, which is about 84% yield based on the amount of CPTES used.

References

[1] Patent: US6680398, 2004, B1. Location in patent: Page column 10-11
[2] Patent: US6680398, 2004, B1. Location in patent: Page column 8-9
[3] Patent: US6680398, 2004, B1. Location in patent: Page column 10
[4] Patent: US6680398, 2004, B1. Location in patent: Page column 9-10
[5] Patent: US6680398, 2004, B1. Location in patent: Page column 9

Questions And Answer

• Application

  Footwear
  - Abrasion resistance
  - Cutting and chunking resistance
  - Flex life improvement
  Rolls
  - Abrasion resistance
  - Aging resistance
  - Processing- Set reduction (better load bearing)
  - Reduced water swell
  - Lower hysteresis
  Mechanical Molded Goods
  - Increased modulus
  - Better heat aging
  - Compression set reduction
  - Dynamic property improvement
  - Reduced swell to polar liquids
  - Filler substitution (non-black for black)
  Hose
  - Improved abrasion on cover
  - Better heat aging
  - Increased modulus
  - Lower compression set
  - Improved adhesion to reinforcing elements
  Solid Tires
  - Improved abrasion
  - Lower hysteresis
  - Higher modulus
  - Improved processing
  - Possibly better adhesion
  Tires
  - Treads for abrasion, hot tear
  - Carcass for adhesion and/or filler substitution
  - Breaker (belt) stocks for adhesion
  Belts
  Flat Belts
  - Increased abrasion
  - Improved reversion resistance
  - Reduced cost with clay substitution for black
  - Improved cord adhesion
  - Increased flex life and modulus
  V Belts
  - Increased modulus
  - Improved abrasion
  - Longer flex life
  - Improved adhesion to reinforcing elements ;

Spectrum Detail

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