Continuous process for producing polyol modified polyalkenylene terephthalate
The present invention relates to a continuous process for the production of polyol modified polyalkenylene terephthalates and the application of such polyol modified polyalkylene therephtalate on wire enamels.
1. A process for applying a polyol modified polyalkylene terephthalate on a wire, the process comprising: applying a polyol modified polyalkylene terephthalate on a wire,
the polyol modified polyalkylene terephthalate having been obtained by a continuous process comprising:
introducing components in a continuous reactor comprising a reaction zone, the components including a polyalkylene terephthalate, a polyol, and a transesterification catalyst;
reacting the components in the reaction zone of the reactor at a temperature in the range of 180 C to 350 C to produce the polyol modified polyalkylene terephthalate;
wherein the polyol includes one or more of tris(2-hydroxyethyl) isocyanurate and glycerine, and
wherein reacting the components is performed in a melt of the polyalkylene terephthalate.
2. The process of claim 1 further comprising dissolving the polyol modified polyalkylene terephthalate in a solvent to produce a dissolved polyol modified polyalkylene terephthalate and applying the dissolved polyol modified polyalkylene terephthalate on the wire.
3. The process of claim 2 , further comprising adding one or more of an additive and a diluent to the dissolved polyol modified polyalkylene terephthalate.
4. The process of claim 1 , wherein applying the polyol modified polyalkylene terephthalate on the wire is conducted in the presence of a solvent.
5. The process of claim 1 , further comprising adding one or more of an additive and a diluent to the polyol modified polyalkylene terephthalate.
6. The process of claim 4 , further comprising adding one or more of an additive and a diluent to the polyol modified polyalkylene terephthalate.