UNSATURATED POLYESTER RESINS USE

Brand Owner (click to sort) Address Description
OPTIPLUS POLYNT COMPOSITES USA INC. 99 EAST COTTAGE AVENUE CARPENTERSVILLE IL 60110 unsaturated polyester resins for use in the manufacture of molds and composites;
POLARIS INEOS COMPOSITES IP 1209 ORANGE STREET WILMINGTON DE 19801 unsaturated polyester resins for use in the construction of boats;
POLYCOM ARISTECH CHEMICAL CORPORATION 600 GRANT STREET PITTSBURG PA 15230 unsaturated polyester resins for use in the manufacture of molded and laminated articles;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The present invention relates to a method for the recycling waste polyester resins and the reclaimed materials therefrom. The method for recycling waste polyester resins according to one embodiment the present invention comprises (a) depolymerizing waste polyester resin; (b) polycondensing the depolymerized product from step (a) with a polyhydric alcohol to provide a polyester polymer having an acid value of 10-150 mgKOH/g; and (c) recovering the polyester polymer in solid or liquid form if the polyester polymer from step (b) has an acid value of more than 20 mgKOH/g or recovering the polyester polymer in solid form if the polyester polymer from step (b) has an acid value of less than 20 mgkOH/g. The reclaimed polyester resin according to the present invention has the excellent compatibility, dispersibility, and adhesive property for various media, and can be used easily neutralized and dissolved in water. Accordingly, the polyester resin can be used as a useful material for industrial products.