Title:
【発明の名称】非イオン性強塩基触媒によるラクタムの開環重合法
Document Type and Number:
Japanese Patent JP3421047
Kind Code:
B2
Abstract:
Process for the ring opening polymerization of lactams to higher molecular weight polyamide polymers utilizing non-ionic polymerization catalyst base with a pKa of equal to or greater than 30, particularly certain strong, nitrogen and phosphorus containing non-ionic bases.
Inventors:
Memega, Wesley, Junior
Application Number:
JP51680395A
Publication Date:
June 30, 2003
Filing Date:
December 14, 1994
Export Citation:
Assignee:
E.I.du Pont de Nemours & Company
International Classes:
C08G69/20; (IPC1-7): C08G69/20
Other References:
【文献】米国特許4614792(US,A)
【文献】米国特許3940372(US,A)
【文献】米国特許3940372(US,A)
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)