Patent ID: 11940384
Assignee: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
Field: Measurement (Instruments)
Classification: CPC G  B  C | IPC B  C  G

Claim 7:
8. A method comprising:
monitoring an instantaneous weight average molecular weight (Mw,inst) of polymers being produced by a polymerization reaction occurring in a reaction vessel a plurality of times during the polymerization reaction;
determining a corresponding change in polymer concentration ΔCp in the reaction vessel based at least in part on successive values of the instantaneous weight average molecular weight;
generating an instantaneous molecular weight distribution (IMWD) at the change in the polymer concentration ΔCp by using the instantaneous weight average molecular weight as the mean for the IMWD;
computing a histogram of instantaneous weight average molecular weight distributions (IMWDs), with the amplitude of the IMWDs proportional to the change in polymer concentration between successive values of instantaneous weight average molecular weight; and
computing a cumulative molecular weight distribution (CMWD) based on the histogram using a statistical distribution appropriate to the polymerization reaction.