Poly ( tetramethylene terephthalate ) - polyether block...

Details Poly ( tetramethylene terephthalate ) - polyether block... Poly ( tetramethylene terephthalate ) - polyether block...

C - Chemistry, Metallurgy

08

G

400/2015

C08G 81/00 (2006.01) C08G 63/672 (2006.01)

Patent

CA 1081889

ABSTRACT OF THE DISCLOSURE Poly (tetramethylene terephthalate)-polyether block copolymers having materially increased heat deflection temperatures and incorporating within the polymer chain in random distribution 1 percent to 7 percent by weight of the polyether, poly(tetramethylene ether glycol) or polyethylene oxide; the polyether being added to the reaction mixture in the course of the polymerization reaction.

274518

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