Title:
【発明の名称】α,ω-ジアミノポリエーテル製造用の新規な中間体
Document Type and Number:
Japanese Patent JP2720893
Kind Code:
B2
Abstract:
The present invention provides a method for making primary amine terminated linear polyethers of molecular weight above about 3500 which have virtually no contamination from in-chain secondary amine functionalities or amine-terminated tertiary amine side-chains. This method involves the production of novel intermediates. The invention also provides purely linear polyether-polyurea block copolymers formed by chain extension of the primary amine terminated linear polyethers.
Inventors:
CHAARUZU MAACHIN REIAA
JEROOMU JOSEFU HOFUMAN
JON EDOWAADO SUTAAKU
JEROOMU JOSEFU HOFUMAN
JON EDOWAADO SUTAAKU
Application Number:
JP5474496A
Publication Date:
March 04, 1998
Filing Date:
March 12, 1996
Export Citation:
Assignee:
MINESOTA MAININGU ANDO MFG CO
International Classes:
C08G65/32; C08G18/50; C08G65/20; C08G65/333; (IPC1-7): C08G65/32
Attorney, Agent or Firm:
Akira Asamura (2 outside)