Patent · US Expired

Polymerization process

US3970610A · kind A · utility

3Cited by

8References

9Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Kasimir Ruchlak
Ernst-August Albers · Göttingen, DE
Walter Fester · Königstein, DE

Key dates

Filing date	Oct 8, 1974
Grant date	Jul 20, 1976
Priority date	—
Expiry date	Oct 8, 1994

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/0286
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a vessel and a process for polymerizing vinyl chloride in suspension. The vessel the inner surfaces of which consist of stainless steel or are plated with a noble metal comprises at least one cathode in contact with the reaction medium and insoluble therein and as anode the metallic inner surface of the vessel, the cathode and anode being connected over an external source of current. The polymerization is carried out with electrolytic generation of hydrogen and oxygen from the polymerization medium. The polymerization vessel and process according to the invention suppress completely or substantially the formation of wall deposits.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.