| 发明名称 |
Stabilization of polyisocyanates against discoloration |
| 摘要 |
Polyisocyanates are stabilized against discoloration by the addition of certain hindered phenols such as o,o-di-n-octadecyl-3,5-di-tert-butyl-4-hydroxyl benzyl phosphonate. |
| 申请公布号 |
US4064157(A) |
申请公布日期 |
1977.12.20 |
| 申请号 |
US19760671201 |
申请日期 |
1976.03.29 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
NAFZIGER, JOHN L.;MOTES, JOHN M. |
| 分类号 |
C07C265/14;(IPC1-7):C07C119/04 |
主分类号 |
C07C265/14 |
| 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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