A process for controlling polyvinylbutyral physical...

Details A process for controlling polyvinylbutyral physical... A process for controlling polyvinylbutyral physical...

C - Chemistry, Metallurgy

08

F

C08F 8/28 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2494510

The present invention is method for controlling the stereoisomerism of PVB resin as well as a PVB resin having a meso/racemic stereoisomer ratio of from about 2.5 to about 5Ø Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of PVB, in addition to or in lieu of changing additives or manipulating the PVB composition.

La présente invention concerne un procédé permettant de réguler la stéréoisomérie d'une résine en polyvinylbutyral (PVB), ainsi qu'une résine en PVB présentant un rapport stéréoisomérique compris entre environ 2.5 et environ 5Ø La manipulation de ce rapport peut représenter un procédé supplémentaire pour réguler les propriétés physiques du PVB, en plus ou au lieu de modifier des additifs ou de manipuler la composition du PVB.

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