3- Process for the preparation of yellow bis3-triethoxysilylpropyltetrasulfane

摘要

The present invention involves the addition of a small amount of chloropropyltrichlorosilane to neutral chloropropyltriethoxysilane followed by reaction with sodium polysulfide in ethanol,₂(3-triethoxysilyl) propyl) tetrasulfane, which has an iodine color value of 10 mg / 100 ml or less.