US 2024/0092949 A1 · CONTINUOUS PROCESS FOR POLYMERIZATION OF VINYL CHLORIDE

Continuous process for polymerization of vinyl chloride

AssigneeBraskem S.A.

InventorsNormando José Castro de Jesus, Márcio Henrique dos Santos Andrade, Antonio Luiz Duarte Bragança, Priscila Martins Beck, Rita Cristina C. Marinho, Tahyná Barbalho Fontoura, Nathalia Oliveira Martins, Thiago Roberto Almeida, John Henry Percival Brooman

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Abstract

A process for polymerization of vinyl chloride may include contacting vinyl chloride, demineralized water, at least one stabilizer agent, at least one dispersing agent, an initiator and optionally one or more comonomers; continuously feeding the vinyl chloride, demineralized water, at least one stabilizer agent, at least one dispersing agent, an initiator and optionally one or more comonomers into a tubular reactor having a length of at least 20 times an internal diameter of the tubular reactor; and continuously polymerizing the vinyl chloride, and optionally the one or more comonomers.

Claims27

Dependent claims

A process for polymerization of vinyl chloride, comprising:

contacting vinyl chloride, demineralized water, at least one stabilizer agent, at least one dispersing agent and optionally one or more comonomers (herein referred to as the pre-mixture);
continuously feeding the vinyl chloride, demineralized water, the at least one stabilizer agent, the at least one dispersing agent and optionally one or more comonomers into a tubular reactor having a length of at least 20 times the internal diameter of the tubular reactor;
and continuously polymerizing the vinyl chloride, and optionally the one or more comonomers.

Dependencies are inferred from the claim text.