Fast crystallising block copolyester composition

Details Fast crystallising block copolyester composition Fast crystallising block copolyester composition

C - Chemistry, Metallurgy

08

L

400/2014, 400/30

C08L 67/02 (2006.01) C08G 63/183 (2006.01) C08G 63/60 (2006.01) C08G 63/672 (2006.01) C08G 81/02 (2006.01) C08L 53/00 (2006.01)

Patent

CA 1147090

ABSTRACT OF THE DISCLOSURE: A fast crystallising polyester composition comprising a block copolyester containing the repeating polymeric segments A and B wherein A is a polymeric segment of ethylene terephthalate units and A is a polymeric segment having n glass-transition temperature of less than 0°C and preferably less than -20°C, the concentration of the segments of B being between 0.05 and 10 mole % of the block copolyester, and a crystallisation nucleant which is an at least partially neutralised salt, preferably an alkali metal salt, of a polymer containing pendant neutralisable groups.

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