Patent ID: 11896954
Assignee: INSTITUTO MEXICANO DEL PETRóLEO
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 1:
2. A process according to claim 1, wherein, prior to the pyrolysis, the poly (vinylidene chloride) copolymers are chemically treated by dispersing the copolymers in a solution of alkali or alkaline earth metal hydroxides or alcohol oxides, wherein the solution contains NaOH, KOH, LiOH, Mg(OH)2 or Ca(OH)2 or sodium methoxide, potassium methoxide, potassium iso-propoxide, sodium iso-propoxide, lithium iso-propoxide or potassium tert-butoxide, sodium tert-butoxide with oxygenated solvents, preferably water, methanol, ethanol, n-propanol, iso-propanol, n-butanol, sec-butanol, tert-butanol and mixtures thereof, and subsequently stirring the copolymers in a batch reactor.