Patent · US Expired

Apparatus and process for the intensive degassing of PVC suspensions and dispersions

US6270729A · kind A · utility

1Cited by

5References

3Claims

0Family size

Assignee

Solvin (Societe Anonyme) · BE

Inventors

Thomas Perner · Eßlingen, DE
Gunter Elzer · Mannheim, DE

Key dates

Filing date	Aug 24, 1995
Grant date	Aug 7, 2001
Priority date	—
Expiry date	Aug 24, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F6/003
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for the intensive degassing of polyvinyl chloride-containing dispersions comprising a polymerization reactor (1), a cooling device (2), and a vacuum unit (3), where the polymerization reactor (1) contains a steam inlet (4) in the lower half, and the polymerization reactor (1), the cooling device (2) and the vacuum unit (3) are connected to one another via a connector (5). The invention also relates to the use of this apparatus and to a process for intensive degassing using this apparatus.

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