Improved control of resin properties

Details Improved control of resin properties Improved control of resin properties

C - Chemistry, Metallurgy

08

F

C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2499233

A method for controlling resin properties during the production of polyolefins is provided. The method utilizes coordinated manipulation of reaction temperature in combination with a secondary process variable to control resin flow properties to rapidly respond to manufacturing upsets or specification changes to minimize off-grade or transition polymer material when moving from one polymer grade to another, or during a disturbance in a steady state production.

L'invention concerne un procédé permettant de commander des propriétés de résine pendant la production de polyoléfines. Ce procédé permet d'utiliser la manipulation coordonnée de la température de réaction avec un processus secondaire variable de manière à commander les propriétés d'écoulement de la résine, afin de répondre rapidement aux réglages de fabrication ou aux modifications de spécification, ce qui permet de réduire la matière de polymère de transition ou hors spécifications, lorsqu'on passe d'un grade de polymère à un autre ou pendant une perturbation dans une production à l'état stationnaire.

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