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Unsaturated Polyester Resins

Unsaturated polyester resin refers to the polycondensation reaction of diacids and diols to form a polymer containing unsaturated double bonds.

Unsaturated Polyester Resins

Related Organic Chemcial Compounds

Phthalic Anhydride (PA)

Specifications of UPR


Unsaturated polyester resin is a kind of thermosetting resin, when it is in the action of heat or initiator, can be cured into a kind of insoluble and insoluble polymer network polymer.


How is PA applied to UPR?


UPR is made up of styrene, maleic anhydride, diethylene glycol, phthalic anhydride, and ethylene glycol. 

The main difference between saturated polyester resin and unsaturated polyester resin is whether there are double bonds in the main chain.



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