发明名称 |
Polymers with improved heat resistance containing maleimide derivative units. |
摘要 |
<p>Process for anionic polymerisation of an N-substituted maleimide in a solvent and in the presence of at least one alkali metal organometallic initiator, where the initiator employed is sec-butyl-lithium, sodium alcoholates, diphenylmethylpotassium or naphthalene- lithium or -sodium; a process for the preparation of polymer based on N-substituted maleimide with a narrow molecular mass distribution by anionic polymerisation of maleimide in a solvent and in the presence of an initiating system consisting of at least one alkali metal organometallic initiator and of at least one inorganic salt and/or an organic salt of an alkali or alkaline-earth metal; a polymer block based on N-substituted maleimide of mean molecular weight 12,000-100,000; a polymer block based on N-substituted maleimide of polydispersity 1.1-1.5; and a multiblock copolymer in which at least one polymer block based on N-substituted maleimide is used in combination with at least one polymer block based on (meth)acrylic monomer.</p> |
申请公布号 |
EP0430785(A2) |
申请公布日期 |
1991.06.05 |
申请号 |
EP19900403331 |
申请日期 |
1990.11.23 |
申请人 |
ATOCHEM |
发明人 |
VARSHNEY, SUNIL K.;TEYSSIE, PHILIPPE;FAYT, ROGER |
分类号 |
C08F4/06;C08F4/46;C08F22/36;C08F22/40;C08F122/40;C08F293/00;C08F297/00;C08F297/02 |
主分类号 |
C08F4/06 |
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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