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US 9,751,998 B2Granted
Catalyst systems for olefin polymerization
AssigneeDow Global Technologies LLC
InventorsJerzy Klosin, Ruth Figueroa, Pulikkottil J. Thomas, Mehmet Demirors, Sylvie Desjardins, Mridula Kapur, Philip P. Fontaine
Life of this patent
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Abstract
The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I).
Claims5
A catalyst system comprising the reaction product of a metal-ligand complex of formula (I):
- wherein:
- M is titanium, zirconium, or hafnium, each independently being in a formal oxidation state of +2, +3, or +4;
- and n is an integer of from 0 to 3, and wherein when n is 0, X is absent;
- and each X independently is a monodentate ligand that is neutral, monoanionic, or dianionic;
- or two Xs are taken together to form a bidentate ligand that is neutral, monoanionic, or dianionic;
- and X and n are chosen in such a way that the metal-ligand complex of formula (I) is, overall, neutral;
- and each Z independently is O, S, N(C1-C40)hydrocarbyl, or P(C1-C40)hydrocarbyl;
- and L is (C3-C40)hydrocarbylene or (C3-C40)heterohydrocarbylene, wherein the (C3-C40)hydrocarbylene has a portion that comprises a 3-carbon atom to 10-carbon atom linker backbone linking the Z atoms in formula (I) (to which L is bonded) and the (C3-C40)heterohydrocarbylene has a portion that comprises a 3-atom to 10-atom linker backbone linking the Z atoms in formula (I), wherein each of the 3 to 10 atoms of the 3-atom to 10-atom linker backbone of the (C3-C40)heterohydrocarbylene independently is a carbon atom or heteroatom, wherein each heteroatom independently is O, S, S(O), S(O)2, Si(RC)2, Ge(RC)2, P(RP), or N(RN), wherein independently each RC is (C1-C30)hydrocarbyl, each RP is (C1-C30)hydrocarbyl;
- and each RN is (C1-C30)hydrocarbyl or absent;
- and
- R1-24 are selected from the group consisting of a (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, NO2, CN, CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)—, halogen atom, hydrogen atom, and combination thereof;
- and, wherein at least R1, R16, or both comprise of formula (II),
- wherein at least one of R22 or R19 is H, and when R22 is H, then R19 is a (C1-C40)hydrocarbyl;
- (C1-C40)heterohydrocarbyl;
- Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, NO2, CN, CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)— or halogen atom;
- and when R19 is H, then R22 is a (C1-C40)hydrocarbyl;
- (C1-C40)heterohydrocarbyl;
- Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, NO2, CN, CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)— or halogen atom;
- and
- wherein at least one of R8 or R9 is H, and when R8 is H, then R9 is a (C1-C40)hydrocarbyl;
- (C1-C40)heterohydrocarbyl, Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, NO2, CN, CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)— or halogen atom;
- and when R9 is H, then R8 is a (C1-C40)hydrocarbyl;
- (C1-C40)heterohydrocarbyl, Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, NO2, CN, CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)— or halogen atom;
- and
- optionally two or more R groups from R9-15, R9-13, R9-12, R2-8, R4-8, R5-8 can combine together into ring structures, with such ring structures having from 3 to 50 atoms in the ring excluding any hydrogen atoms;
- each of the hydrocarbyl, heterohydrocarbyl, Si(RC)3, Ge(RC)3, P(RP)2, N(RN)2, ORC, SRC, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)—, hydrocarbylene, and heterohydrocarbylene groups independently is unsubstituted or substituted with one or more RS substituents;
- each RS independently is a halogen atom, polyfluoro substitution, perfluoro substitution, unsubstituted (C1-C18)alkyl, F3C—, FCH2O—, F2HCO—, F3CO—, R3Si—, R3Ge—, RO—, RS—, RS(O)—, RS(O)2—, R2P—, R2N—, R2C═N—, NC—, RC(O)O—, ROC(O)—, RC(O)N(R)—, or R2NC(O)—, or two of the RS are taken together to form an unsubstituted (C1-C18)alkylene, wherein each R independently is an unsubstituted (C1-C18)alkyl;
- and
- one or more cocatalysts;
- wherein the ratio of total number of moles of the one or more metal-ligand complexes of formula (I) to total number of moles of the one or more cocatalysts is from 1:10,000 to 100:1;
- and
- wherein said catalyst system has a reactivity ratio r1 in the range of greater than 100.
29 more elements
Dependencies are inferred from the claim text.