Patent · US Expired

Method of preventing or reducing formation of polymeric deposits in vessels during emptying

US6209552A · kind A · utility

3Cited by

4References

6Claims

0Family size

Assignee

BASF SE

Inventors

Johannes Dobbelaar · Monsheim, DE
Gerd Rehmer · Beindersheim, DE
Wolfgang Hümmer · Birkenheide, DE
Reinhard Bacher · Bad Dürkheim, DE

Key dates

Filing date	Sep 23, 1999
Grant date	Apr 3, 2001
Priority date	—
Expiry date	Sep 23, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01F2101/2805
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of emptying vessels containing dispersions, solutions or suspensions of polymers in which during the emptying process the liquid medium also used to take up the polymers into the dispersion, solution or suspension is passed into the space within the vessel that is not filled by the solution, dispersion or suspension, wherein the liquid medium used to take up the polymers into the dispersion, solution or suspension is introduced in vapor form.

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