Patent ID: 11939417
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A heterogeneous procatalyst comprising:
a titanium species, wherein the titanium species is TiCl4-c(OR3), or TiCl3-d(OR3)d, wherein R3 is (C1-C20)hydrocarbyl, c is 0, 1, 2, 3, or 4, and d is 0, 1, 2, or 3;
a preformed MgCl2 support with a specific surface area of at least 100 m2/g;
a chlorinating agent having a structural formula Al(Cl)x(R1)3-x or Si(Cl)y(R1)4-y, where:
R1 is a (C1-C30) hydrocarbyl;
x is 1, 2, or 3; and
y is 1, 2, 3, or 4; and

a metal-ligand complex having a structural formula (L)nM(Y)m(XR2)b, where:
M is a metal cation;
each L is a neutral ligand or (═O);
each Y is a halide or (C1-C20)alkyl;
each XR2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R2 is (C1-C20)hydrocarbyl or (C1-C20)heterohydrocarbyl;
n is 0, 1, or 2;
m is 0, 1, 2, 3, or 4;
b is 1, 2, 3, 4, 5, or 6; and
the metal-ligand complex is overall charge neutral;

wherein the molar ratio of the total amount of chlorine in the chlorinating agent to the sum of the amounts of OR3 and XR2 in the heterogeneous procatalyst is from 0.33 to 1.45.