C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/80 (2006.01) C08G 63/185 (2006.01)
Patent
CA 2543362
A method for enhancing solid state polymerization of polyethylene terephthalate is disclosed in which at least one monomeric unit of diacid and/or dimethyl ester comprising at least one pendant chemical side group is copolymerized with a diol and a diacid or a dimethyl ester. The at least one pendant chemical side group may include groups chosen from tertiary butyl, hexyl, pentyl, butyl, propyl, ethyl, methyl, nitrosyl (NO2) and sulfonyl (SO2) groups.
Procédé permettant d'améliorer la polymérisation à l'état solide du polytéréphtalate d'éthylène, selon lequel on effectue la copolymérisation d'au moins un motif monomère d'un diacide et/ou d'un ester diméthylique comportant au moins un groupe latéral chimique pendant, avec un diol et un diacide ou un ester diméthylique. Ledit groupe latéral chimique pendant ou les plusieurs groupes de ce type peu(ven)t comprendre des groupes choisis parmi des groupes butyle, hexyle, pentyle, butyle, propyle, éthyle, méthyle, nitrosyle (NO2), et sulfonyle (SO2) tertiaires.
Cunningham Jill Barbara
Gardner Michael William
Jenkins Stephen D.
Winter Derek J.
Bennett Jones Llp
Invista Technologies S.a.r.l.
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