Patent ID: 11891460
Assignee: W.R. GRACE & CO.—CONN.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 17:
18. The process of claim 16, wherein the internal electron donor is represented by one of the following formulas:, where R1-R4, E1, and E2 are the same or different and each R1-R4, E1, and E2 is selected from the group consisting of hydrogen, a substituted hydrocarboyl group having 1 to 20 carbon atoms, an a unsubstituted hydrocarboyl having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbons, an alkoxy group having 1 to 20 carbon atoms, a heteroatom and combinations thereof and at least one of R2-R4 is not hydrogen; E1 and E2 are the same or different and each E1 and E2 is selected from the group consisting of a substituted hydrocarboyl group having 1 to 20 carbon atoms, an a unsubstituted hydrocarboyl having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbons, an alkoxy group having 1 to 20 carbon atoms, a heteroatom and combinations thereof;
and wherein X1 and X2 are each O, S, an alkyl group, or NR5 and wherein R5 is a hydrocarbyl group having 1 to 20 carbon atoms or is hydrogen; or, , wherein:
each of R1 through R14 are independently H, F, Cl, Br, I, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl; and
q is an integer from 0 to 12,
and wherein the supportive electron donor has the following formula:, wherein R′ comprises an alkyl group, a cyclic group, an aryl group having from 1 to 20 carbon atoms, a heteroatom or a combination thereof, and
wherein R″ comprises one or more substituted groups, each substituted group can comprise independently hydrogen, an alkyl group, a cyclic group, an aryl group having from 1 to 20 carbon atoms, a heteroatom, or a combination thereof.