C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/00 (2006.01) C08K 5/00 (2006.01)
Patent
CA 2661400
There is provided a process for increasing the yellowness of polyester polymer particles, preforms, bottles, and concentrates, containing a polyester polymer such as polyethylene terephthalate and copolymers by adding a yellow colorant and reheat agent particles comprising titanium, alloys of titanium, titanium nitride, titanium boride, titanium carbide, or combinations thereof to a melt phase polymerization process for making the polyester polymer to adding any one of the colorant or particles to a polyester polymer.
L'invention concerne un procédé permettant d'augmenter la couleur jaune de particules polymères de polyester, de préformes, de bouteilles et de concentrés, qui contiennent un polymère de polyester comme le téréphtalate de polyéthylène et des copolymères. Ce procédé consiste à ajouter un colorant jaune et des particules d'agent de réchauffage renfermant du titane, des alliages de titane, du nitrure de titane, du borure de titane, du carbure de titane ou des mélanges associés, à un processus de polymérisation à phase de fusion conçu pour produire le polymère de polyester, ledit processus servant à ajouter le colorant ou les particules à un polymère de polyester.
Fraser Emily
Hoenderdaal Wim
Maleski Robert Joseph
Milton Colin
Quillen Donna Rice
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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