C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01)
Patent
CA 2263519
The present invention relates to a process for minimizing the formation of undesirable byproducts in ozonated liquids comprising the steps of providing a container comprising a polyester comprising repeat units from a dicarboxylic acid component comprising at least about 85 mole percent terephthalic acid, 2,6-naphthalenedicarboxylic acid or a mixture thereof and at least about 85 mole percent ethylene glycol, and from about - to about - weight % of at least one polyamide which displays a melting point below that of said polyester, and filling said container with an ozonated liquid.
La présente invention a trait à un procédé permettant de réduire au minimum la formation de sous-produits indésirables dans des liquides ozonisés, comprenant les étapes consistant à prévoir un récipient comprenant un polyester comportant des unités répétées d'un composant d'un acide carboxylique doté d'au moins 85 mole pour-cent environ d'acide téréphtalique, d'acide 2,6-naphtalènedicarboxylique, ou d'un mélange de ceux-ci, et au moins environ 85 mole pour-cent d'éthylène glycol; et d'environ 0,05 % à environ 2 % en poids d'au moins un polyamide présentant un point de fusion inférieur à celui dudit polyester, et à remplir ledit récipient avec un liquide ozonisé.
Bagrodia Shriram
Ducasse Vincent
Long Timothy Edward
Moreau Annick
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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