Préparation de polysulfures de haute pureté

Preparation of high purity polysulfides

Herstellung von Polysulfiden hoher Reinheit

Abstract

This invention relates to a process for preparing polysulfide product generally containing an average of 3 to 6 sulfur atoms in high yield which degrades minimally over extended time periods. Minimal degradation is accomplished by a unique treatment process wherein chemical species, most notably unreacted mercaptans and catalysts which apparently promote degradation, are selectively removed from the polysulfide crude product.

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    EP-0025944-A1April 01, 1981RHEIN-CHEMIE RHEINAU GmbHVerfahren zur Herstellung von Polysulfiden
    EP-0076376-A1April 13, 1983Pennwalt CorporationDeodorizing dialkyl polysulfides
    US-2024567-ADecember 17, 1935Wingfoot CorpPreparation of organic disulphides

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    Publication numberPublication dateAssigneeTitle