发明名称 |
PROCESS FOR HYDROTREATING RESINS TO LIGHTEN COLOR |
摘要 |
The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process comprising the single step of contacting the resin with hydrogen in the presence of a catalyst that promotes the hydrogenation of the color bodies without substantially changing the content of carbon-carbon double bonds in the resin. The preferred catalysts are copper chromite and copper/zinc. are prefer
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申请公布号 |
CA2116903(C) |
申请公布日期 |
2001.08.14 |
申请号 |
CA19942116903 |
申请日期 |
1994.03.03 |
申请人 |
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发明人 |
DAUGHENBAUGH, NORMAN E.;GOODFELLOW, DANE G. |
分类号 |
C08F8/04;(IPC1-7):C08F8/04 |
主分类号 |
C08F8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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