Heterocyclic polymer solutions and products therefrom

Details Heterocyclic polymer solutions and products therefrom Heterocyclic polymer solutions and products therefrom

C - Chemistry, Metallurgy

08

L

18/637, 400/7433

C08L 75/02 (2006.01) C08J 5/12 (2006.01) C08J 9/28 (2006.01) C08L 79/04 (2006.01)

Patent

CA 1111164

ABSTRACT OF THE DISCLOSURE New solvents have been found for certain poly(parabanic acids) and poly(iminoimidazolidinediones). Epihalchydrins and glycidyl acrylate have been found to be solvents. Cellular films are produced by immersing films of the polymer solutions in aprotic anti-solvents such as aliphatic katones, esters, hydrocarbons, halogenated hydrocarbons and ethers.

309818

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