首页>
外国专利>
METHOD FOR PRODUCTION OF YELOW BIS (3-TRIETOXI-SILYL-PROPYL) POLYSULPHANE
METHOD FOR PRODUCTION OF YELOW BIS (3-TRIETOXI-SILYL-PROPYL) POLYSULPHANE
展开▼
机译:黄色双(3- [三乙氧基甲硅烷基]-丙基)聚硫化物的生产方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfane (average sulfur chain length less than 4 and iodine color number no greater than 10 mg iodine/100 ml) comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane and reaction with sodium sulfide and sulfur, disodium tetrasulfide and Nas2S or disodium trisulfide and Na2S in ethanol. A process for the production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfone having an average sulfur chain length of less than 4 and an iodine color number of no greater than 10 mg iodine/100 ml comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane followed by reaction with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (N2S4) and Nas2S or disodium trisulfide (Na2S3) and Na2S in ethanol.
展开▼