发明名称 Preparation of high purity polysulfides
摘要 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.
申请公布号 US5155275(A) 申请公布日期 1992.10.13
申请号 US19910718693 申请日期 1991.08.21
申请人 PHILLIPS PETROLEUM COMPANY 发明人 SHAW, JAMES E.
分类号 C07C319/24;C07C319/28;C07C321/14 主分类号 C07C319/24
代理机构 代理人
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