Method of making purely primary diamines

Details Method of making purely primary diamines Method of making purely primary diamines

C - Chemistry, Metallurgy

08

G

400/2012

C08G 18/50 (2006.01) C08G 65/20 (2006.01) C08G 65/32 (2006.01)

Patent

CA 1329285

ABSTRACT The invention provides purely linear polyether- polyurea block copolymers formed by chain extension of 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.

616529

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