Title:
【発明の名称】テトラフェニルボレートに基づく開始剤の使用によるホルムアルデヒド及び環状エーテルの共重合
Document Type and Number:
Japanese Patent JP2003510374
Kind Code:
A
Abstract:
This invention concerns a process for the copolymerization of formaldehyde with cyclic ethers, the process comprising combining in a hydrocarbon solvent a cyclic ether, a cationic initiator comprising an anion formed from tetraphenyl borate derivatives, and mixtures thereof, and a cation, and anhydrous formaldehyde. These initiators provide high activity, high cyclic ether incorporation rates, and stability while minimizing the production of by-products.
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Inventors:
Adelman, Douglas Jillon
Betzker Bauer, Litchiard
Betzker Bauer, Litchiard
Application Number:
JP2000518008A
Publication Date:
March 18, 2003
Filing Date:
October 23, 1998
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C08G2/06; C08G2/18; C08G2/22; C08G4/00; (IPC1-7): C08G2/18
Attorney, Agent or Firm:
Heiyoshi Odashima
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