Unsaturated Polyester Resins

Unsaturated polyester resins (including vinyl esters and additives) are used in the production of fibre reinforced plastics or non-reinforced filled products. Due to the ease and freedom of processing, unsaturated polyester resins can be applied during the manufacture of both small and large structures. Common applications include marine (gelcoats), automotive, wind turbine blades and electronics.

One of the main raw materials for unsaturated polyester resins is dicyclopentadiene or DCPD, which is supplied by Dow in three different grades.

Product	Description	Regional Availability	Main Active Component(s) & Concentration Range (%-wt)
DCPD RG	Resin Grade DCPD	Europe	Endo-DCPD: 73 – 83% Me-DCPD: 7 – 13% Isoprene codimer: 1 – 5%
DCPD UPR	UPR Grade DCPD	Europe	Endo-DCPD: 83 – 88% Me-DCPD: 2 – 6% Isoprene codimer: 1 – 5%
DCPD HP	High Purity DCPD	Europe	Endo-DCPD : 90 – 95 % Isoprene codimer: 1 – 5%