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G. Rokicki


Unsaturated polyester resins containing allylic monomers

Polimery 1995, No 11-12, 630


DOI: dx.doi.org/10.14314/polimery.1995.630

Summary

An effective method has been presented for isomerizing maleic to fumaric esters utilized for synthesis of unsaturated polyester resins containing built-in crosslinking monomers. The method makes it possible to substitute maleic anhydride for fumaric acid. The effect has been studied of a high-boiling active thinner such as glycerol or pentaerythritol allyl ethers on the course of photocrosslinking of the lacquer compositions based on these resins and on the hardness of coatings. The susceptibility of allylic monomers to polymerization with atmospheric oxygen contribution made it possible to minimize the photoinitiator concentration in lacquer compositions by the addition of a cobalt drier. The efficiency of several types of photoinitiators in the crosslinking process of these resins was compared.


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