Process for preparing high molecular weight polyether resins...

Details Process for preparing high molecular weight polyether resins... Process for preparing high molecular weight polyether resins...

C - Chemistry, Metallurgy

08

G

402/261, 402/33

C08G 59/62 (2006.01) C08G 59/68 (2006.01) C08K 5/13 (2006.01) C08L 63/02 (2006.01)

Patent

CA 1099848

ABSTRACT OF THE DISCLOSURE This invention is directed to a process for preparing high molecular weight polyhydroxyether resins by reacting an epoxy resin which is a glycidyl ether of a bisphenol with a bisphenol in the presence of a solvent and a catalyst. The process is characterized by adding after the reaction between the epoxy resin and the bis- pheno1 is at least 97 percent complete based upon the phenolic hydroxyl content from 0.005 to 0.12 phenolic hydroxyl equivalents of a halogenated bisphenol per equi- valent of the total phenolic hydroxyl content of the bisphenol and the halogenated bisphenol. The high mole- cular weight polyhydroxyether resins produced by this process are useful in coatings.

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