发明名称 |
1,2-ethanediyl-bis-2-piperazinone esters, oligomers thereof, and compositions stabilized thereby |
摘要 |
A bis-polysubstituted piperazinone ("bis-PSP") in which two PSP moieties are closely coupled through an ethylene linkage, may be esterified so as to incorporate particular moieties in a macromolecule which may have only one bis-PSP unit, or may be esterified to form an oligomer having plural esterified bis-PSP repeating units. The macromolecule not only exhibits excellent UV-stabilization and antioxidant properties in synthetic resinous materials thus performing a highly effective dual function, but also is resistant to extraction with solvents, particularly polar solvents.
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申请公布号 |
US4692487(A) |
申请公布日期 |
1987.09.08 |
申请号 |
US19860902541 |
申请日期 |
1986.09.02 |
申请人 |
THE B. F. GOODRICH COMPANY |
发明人 |
SON, PYONG-NAE;LAI, JOHN T. |
分类号 |
C07D241/08;C07D403/14;C08G73/06;C08K5/3462;C08K5/3492;(IPC1-7):C08K5/34 |
主分类号 |
C07D241/08 |
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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