US 12,331,159 B2
Polyesters and polyketoesters from carbonylative terpolymerization of enols, methods to produce, blends, and articles therefrom
Ian Tonks, Minneapolis, MN (US); and Alex Edward Carpenter, Seabrook, TX (US)
Assigned to Exxon Mobil Chemical Patents Inc., Baytown, TX (US); and Regents of the University of Minnesota, Minneapolis, MN (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US); and Regents of the University of Minnesota, Minneapolis, MN (US)
Filed on Aug. 30, 2021, as Appl. No. 17/460,558.
Claims priority of provisional application 63/072,962, filed on Sep. 1, 2020.
Prior Publication US 2022/0064375 A1, Mar. 3, 2022
Int. Cl. C08G 67/02 (2006.01)
CPC C08G 67/02 (2013.01) 29 Claims
OG exemplary drawing
 
1. A polymerization process comprising:
contacting an alpha-omega enol having the general formula:

OG Complex Work Unit Chemistry
wherein R* is a divalent hydrocarbyl, a divalent hydrocarbyl substituted with one or more functional group comprising elements from Group 13-17 of the periodic table of the elements, or a combination thereof; and carbon monoxide (CO) in the presence of a hydroesterification catalyst and an olefin-CO copolymerization catalyst in a reaction medium within a reactor at a temperature, a CO pressure, and for a period of time sufficient to produce a polyketoester having an empirical formula:
(A)a(B)b(C)c(D)d
wherein a>0, b≥0, c>0, and d≥0;
moieties A, B, C, and D may be arranged randomly, in blocks, or in any order;
moiety A having the general formula:

OG Complex Work Unit Chemistry
moiety B having the general formula:

OG Complex Work Unit Chemistry
moiety C having the general formula:

OG Complex Work Unit Chemistry
 and
moiety D having the general formula:

OG Complex Work Unit Chemistry
wherein R++ is H, or a polyketoester chain having the empirical formula (A)a(B)b(C)c(D)d; wherein a>0, b≥0, c>0, and d≥0.