PROCESS FOR THE PRODUCTION OF YELLOW BIS (3-(TRIETHOXYSILYL)-PROPYL) POLYSULFANE

摘要

PURPOSE: Provided is an alternative process of yellow bis(3-(triethoxysilyl)propyl)polysulfane which can be a polysulfane mixture. CONSTITUTION: The process for the production of yellow bis(3-(triethoxysilyl)propyl)polysulfane with an average sulfur chain length of 4 or less and an iodine color value of 10 mg iodine/100 ml or less, is characterized in that neutral chloropropyltriethoxysilane is mixed with chloropropyltrichlorosilane and then reacted with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (Na2S4) and Na2S or disodium trisulfide (Na2S3) and Na2S in ethanol.