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A melting method for preparing polyamide composition 发明授权

2023-04-21 4740 107K 0

专利信息

申请日期 2025-09-08 申请号 JP2006502743
公开(公告)号 JP4560034B2 公开(公告)日 2010-10-13
公开国别 JP 申请人省市代码 全国
申请人 Bee Asettsu Diesuemu Aipi Buoy503220392
简介 The invention relates to a process for preparing a melt-processable polylactam by contacting caprolactam monomer with an anionic polymerization catalyst, polymerizing said monomer and contacting the resulting polylactam with a protic compound. The anionic polymerization catalyst is chosen from the group of alkali-earth-metal-lactamates and alkali-earth-metal-lactamate forming compounds and the protic compound has a pKa larger than 14. The resulting polylactam has a good melt-stability and very low cyclic dimer content.


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