Solid state polymerisation of polyesters with low diffusion...

Details Solid state polymerisation of polyesters with low diffusion... Solid state polymerisation of polyesters with low diffusion...

C - Chemistry, Metallurgy

08

G

C08G 63/80 (2006.01) C08J 3/12 (2006.01)

Patent

CA 2173988

Open-ended, substantially tubular polyester prepolymer pellets provide greatly improved solid state polymerisation rates by improving reaction by-product diffusion characteristics.

L'invention se rapporte à des granulés sensiblement cylindriques, ouverts aux extrémités, d'un prépolymère de polyester présentant un très net accroissement du taux de polymérisation à l'état solide, par suite de l'amélioration des caractéristiques de diffusion des sous-produits de réaction.

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