Patrick L Farrell

US Patent:

20210332192, Oct 28, 2021

Filed:

Mar 8, 2021

Appl. No.:

17/194373

Inventors:

- Atlanta GA, US
Aleksey Isarov - Kennesaw GA, US
Robin Brumby Helms - Ranger GA, US
Yann Charlotte Bourgeois - Nivelles, BE
James Scott Thomas - Cumming GA, US
Christopher Lamar Duck - Canton GA, US
Patrick Christopher Farrell - Cartersville GA, US

International Classification:

C08G 79/04

Abstract:

Polyphosphate compositions are produced by a process that includes the steps of continuously introducing a phosphate compound into a polymerization vessel, polymerizing the phosphate compound at a temperature of 250-450 C. for a time period sufficient to form the polyphosphate composition, and continuously discharging the polyphosphate composition from the polymerization vessel. The phosphate compound can be fed to the polymerization vessel in the form of an aqueous slurry containing 5-50 wt. % of the phosphate compound. Resulting polyphosphate compositions often contain at least 8 wt. % of a polyphosphate and less than 35 wt. % of the phosphate compound.