Process for preparing yellow bis(3-[triethoxysilyl]propyl)tetrasulfan

Process for the preparation of yellow bis(3-[triethoxysilyl]propyl)tetrasulfane having an iodine colour value of <=10 mg of iodine/100 ml, in which process a small amount of chloropropyltrichlorosilane is added to neutral chloropropyltriethoxysilane and reaction with sodium polysulfide or with Na...

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Bibliographic Details
Main Authors MICHEL, RUDOLF, KRAFCZYK, ROLAND, DESCHLER, ULRICH
Format Patent
LanguageEnglish
French
German
Published 21.12.2005
Edition7
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Process for the preparation of yellow bis(3-[triethoxysilyl]propyl)tetrasulfane having an iodine colour value of <=10 mg of iodine/100 ml, in which process a small amount of chloropropyltrichlorosilane is added to neutral chloropropyltriethoxysilane and reaction with sodium polysulfide or with Na2S and sulfur in ethanol is then carried out.
Bibliography:Application Number: EP20010111617