Polyamide-polyol block copolymers and anionic polymerization...

Details Polyamide-polyol block copolymers and anionic polymerization... Polyamide-polyol block copolymers and anionic polymerization...

C - Chemistry, Metallurgy

08

G

400/2016

C08G 69/14 (2006.01) C08G 69/20 (2006.01) C08G 69/40 (2006.01) C08G 73/06 (2006.01)

Patent

CA 1214583

ABSTRACT POLYAMIDE-POLYOL BLOCK COPOLYMERS AND ANIONIC POLYMERIZATION PROCESS Impact modified polyamide/polyether block copoly- mers have increased impact strength for corresponding polyol concentration, which can be achieved using cer- tain difunctional and tri-functional symmetrical tri- azine derivatives as the co-catalyst/coupling agent, and lactamyl salts as the catalyst. Also disclosed is an improved anionic polymerization process, especially suitable for reaction injection molding. The impact modified polyamide/polyether block copolymers have segments of formulae I and II and either III or IV or both III and IV: Image I Image II Image III Image IV

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