Patent · US Expired

Monitoring velocities in a polymerization process

US8059264B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

Basell Poliolefine Italia S.r.l. · IT

Inventors

Christian Schmidt · Bonn, DE
Stefan Ziegler · Aachen, DE
Gabriele Mei · Ferrara, IT
Stefano Bertolini · Ancona, IT
Gerben Meier · Frankfurt, DE

Key dates

Filing date	Feb 24, 2004
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Feb 20, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/143333
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Method for monitoring the velocity of growing polymer particles flowing in a two-phase stream during a polymerization process, said method comprising measuring the degree of attenuation in the propagation of light in said two-phase stream by means of a photometric instrument, said photometric instrument comprising: one or more transmitting optical waveguides connecting one or more light sources to said two-phase stream, one or more receiving optical waveguides connecting said two-phase stream to a light detector.

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