发明授权
- 专利标题: Polymerization process using a sodium carboxylactamate catalyst
- 专利标题(中): 使用羧甲基纤维素钠催化剂的聚合方法
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申请号: US794447申请日: 1977-05-06
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公开(公告)号: US4264503A公开(公告)日: 1981-04-28
- 发明人: Robert Bacskai
- 申请人: Robert Bacskai
- 申请人地址: CA San Francisco
- 专利权人: Chevron Research Company
- 当前专利权人: Chevron Research Company
- 当前专利权人地址: CA San Francisco
- 主分类号: C07D209/12
- IPC分类号: C07D209/12 ; C08G69/24 ; C07D207/12 ; C07D211/40
摘要:
The polymerization of 2-pyrrolidone is achieved in high yield in the presence of a sodium-derived catalyst activator produced by the reaction of carbon dioxide with the sodium lactamate derived from the reaction of a sodium alkoxide and a 5-7 membered-ring lactam in an inert liquid nonsolvent.
公开/授权文献
- US5833550A Golf club head 公开/授权日:1998-11-10
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