Process for making sulfonated polyester compounds

Details Process for making sulfonated polyester compounds Process for making sulfonated polyester compounds

C - Chemistry, Metallurgy

08

G

C08G 63/688 (2006.01) C08G 63/91 (2006.01) C11D 1/60 (2006.01) D06C 29/00 (2006.01)

Patent

CA 2390414

A method of producing sulfonated polyester compounds suitable for use as a soil releasing agent and/or textile sizing agent in which a sulfonated acid or ester is reacted with a hydroxy-containing compound to form a sulfonated hydroxy terminated ester which then undergoes a transesterification reaction with a poly (ethylene) terephthalate based polyester followed by polycondensation to form the desired sulfonated polyester compound.

L'invention concerne un procédé de production de composés de polyester sulfoné destinés à être utilisés comme agent d'élimination des salissures et/ou comme produit d'encollage textile, dans lequel un acide ou un ester sulfoné est mis à réagir avec un composé contenant un hydroxy pour former un ester sulfoné à terminaison hydroxy, qui est alors soumis à une transestérification avec un polyester à base de poly(éthylène)téréphtalate, suivie d'une polycondensation, pour former le composé de polyester sulfoné voulu.

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