公开(公告)号：US09714899B2

公开(公告)日：2017-07-25

申请号：US15027179

申请日：2014-11-18

Applicant: versalis S.p.A.

Inventor： Francesco Bonacini ,  Erik Mantovani ,  Angelo Ferrando

IPC: C08F2/00 ,  C08F4/00 ,  C08F12/02 ,  G01N21/27 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/85 ,  C08F112/08

CPC classification number: G01N21/272 ,  C08F112/08 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/8507 ,  G01N2201/061 ,  G01N2201/0826 ,  G01N2201/13

Abstract: The present invention relates to a method for monitoring a control parameter of a polymerization reaction mixture in heterogeneous phase comprising the following steps: (a) acquiring at least one NIR reflectance spectrum of said mixture; (b) calculating a value of said control parameter by means of a calibration curve which correlates the NIR reflectance spectrum with the values of said control parameter measured with a reference measurement method. The present invention also relates to an apparatus for implementing said method.