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| 專利名稱 | Phenolic phosphite antioxidants and polymer compositions containing said antioxidant | | 專利證號 | US6759461B2 | | 國別 | 美國 | | 獲證日期 | 2004-07-06 | | 專利摘要 | A novel antioxidant has the advantages of both the hindered phenols and the phosphite antioxidant is prepared from phosphorus trichloride and 2,5-di-tert-butylhydroquinone, such as tetrakis-(2,5-di-tert-butyl-4-hydroxyphenyl)-2,5-di-tert-butyl-hydroquinonediyl diphosphite. | IPC國際分類號 | C08K000551 | C08K000552 | C08K0005526 |
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