Catalyst systems comprising pyridyldiamido transition metal complexes and chain transfer agent and use thereof

Patent metadata

Field	Value
Publication number	US-9315593-B2
Application number	US-201414540118-A
Country	US
Kind code	B2
Filing date	Nov 13, 2014
Priority date	Nov 15, 2013
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization with chain transfer agent.

First claim

What is claimed is:

1. A catalyst system comprising chain transfer agent, activator and pyridyldiamido transition metal complex represented by the formula: (A), (B), (C), or (D):

wherein:
M is a Group 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal;
Q 1 is a three atom bridge with the central of the three atoms being a group 15 or 16 element (said group 15 element may or may not be substituted with an R 30 group) represented by the formula: -G 1 -G 2 -G 3 - where G 2 is a group 15 or 16 atom (said group 15 element may be substituted with a R 30 group), G 1 and G 3 are each a group 14, 15, or 16 atom (each group 14, 15, and 16 element may or may not be substituted with one or more R 30 groups), where G 1 , G 2 and G 3 , or G 1 and G 2 , or G 1 and G 3 , or G 2 and G 3 may form a singular or multi ring system;
each R 30 group is, independently, hydrogen or a C 1 to C 100 hydrocarbyl group or a silyl group;
Q 2 is —NR 17 , —PR 17 , or oxygen, where R 17 is selected from hydrogen, hydrocarbyls, substituted hydrocarbyls, silyls, or germyls;
Q 3 is -(TT)- or -(TTT)- where each T is carbon or a heteroatom, and said carbon or heteroatom may be unsubstituted or substituted with one or more R 30 groups that together with the “—C-Q 3 =C—” fragment, forms a 5- or 6-membered cyclic group or a polycyclic group including the 5 or 6-membered cyclic group;
R 1 is selected from the group consisting of hydrocarbyls, substituted hydrocarbyls, and silyl groups;
R 3 , R 4 , and R 5 are independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, alkoxy, aryloxy, halogen, amino, and silyl, and wherein adjacent R groups (R 3 & R 4 and/or R 4 & R 5 ) may be joined to form a substituted or unsubstituted hydrocarbyl or heterocyclic ring, where the ring has 5, 6, 7, or 8 ring atoms and where substitutions on the ring can join to form additional rings;
R 2 is -E(R 12 )(R 13 )— with E being carbon, silicon, or germanium;
Y is selected from oxygen, sulfur, or -E*(R 6 )(R 7 )—, with E* being carbon, silicon, or germanium;
R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 are independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, alkoxy, halogen, amino, and silyl, and wherein adjacent R groups (R 6 & R 7 , and/or R 8 & R 9 , and/or R 9 & R 10 and/or R 10 & R 11 and/or R 12 & R 13 ) may be joined to form a saturated, substituted or unsubstituted hydrocarbyl or heterocyclic ring, where the ring has 5, 6, 7, or 8 ring carbon atoms and where substitutions on the ring can join to form additional rings;
L is an anionic leaving group, where the L groups may be the same or different and any two L groups may be linked to form a dianionic leaving group;
n is 0, 1, 2, 3, or 4;
L′ is a neutral Lewis base; and
w is 0, 1, 2, 3 or 4.

2. The catalyst system of claim 1 , wherein M is Ti, Zr, or Hf.

3. The catalyst system of claim 1 , wherein R 2 is selected from CH 2 , CH(aryl), CH(2-isopropylphenyl), CH(2,6-dimethylphenyl), CH(2,4-6-trimethylphenyl), CH(alkyl), CMe 2 , SiMe 2 , SiEt 2 , or SiPh 2 .

4. The catalyst system of claim 1 , wherein T is C, O, S, or N.

5. The catalyst system of claim 1 , wherein E and E* are carbon and each R 6 , R 7 , R 12 , and R 13 are a C 1 to C 30 substituted or unsubstituted hydrocarbyl group.

6. The catalyst system of claim 1 , wherein E and E* are carbon and each R 6 , R 7 , R 12 , and R 13 are a C 6 to C 30 substituted or unsubstituted aryl group.

7. The catalyst system of claim 1 , wherein Q 2 is —NR 17 .

8. The catalyst system of claim 1 , wherein E and E* are carbon and R 1 and R 17 are independently selected from phenyl groups that are substituted with 0, 1, 2, 3, 4, or 5 substituents selected from the group consisting of F, Cl, Br, I, CF 3 , NO 2 , alkoxy, dialkylamino, hydrocarbyl, and substituted hydrocarbyl groups with from one to ten carbons.

9. The catalyst system of claim 1 , wherein Q 1 is selected from:

where the symbols indicate the connections to R 2 and the aromatic ring, and alkyl is an alkyl group.

10. The catalyst system of claim 1 , wherein each L is independently selected from the group consisting of halide, alkyl, aryl, alkoxy, amido, hydrido, phenoxy, hydroxy, silyl, allyl, alkenyl, triflate, alkylsulfonate, arylsulfonate, and alkynyl; and each L′ is independently selected from the group consisting of ethers, thio-ethers, amines, nitriles, imines, pyridines, and phosphines.

11. The catalyst system of claim 1 , wherein Q 3 is CHCHCH, CH 2 CH, CHN(alkyl), CH—S, CHC(alkyl)=CH, C(alkyl)CH═C(alkyl), CH—O, or NO.

12. The catalyst system of claim 1 , wherein the complex is represented by formula (A).

13. The catalyst system of claim 1 , wherein the complex is represented by formula (B).

14. The catalyst system of claim 1 , wherein the complex is represented by formula (C).

15. The catalyst system of claim 1 , wherein the complex is represented by formula (D).

16. The catalyst system of claim 1 , wherein the activator comprises an alumoxane.

17. The catalyst system of claim 1 , wherein the activator comprises a non-coordinating anion.

18. The catalyst system of claim 1 , wherein the activator comprises one or more of:
trimethylammonium tetrakis(perfluoronaphthyl)borate, N,N-dimethylanilinium tetrakis(perfluoronaphthyl)borate, N,N-diethylanilinium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, trimethylammonium tetrakis(perfluorobiphenyl)borate, N,N-dimethylanilinium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, N,N-dimethylanilinium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluorophenyl)borate, [Me 3 NH + ][B(C 6 F 5 ) 4 − ], 1-(4-(tris(pentafluorophenyl)borate)-2,3,5,6-tetrafluorophenyl)pyrrolidinium, triphenylcarbenium tetraphenylborate, and triphenylcarbenium tetrakis-(2,3,4,6-tetrafluorophenyl)borate.

19. The catalyst system of claim 1 wherein the chain transfer agent is selected from Group 2, 12 or 13 alkyl or aryl compounds.

20. The catalyst system of claim 1 , wherein the chain transfer agent is selected from dialkyl zinc compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, or phenyl.

21. The catalyst system of claim 1 , wherein the chain transfer agent is selected from trialkyl aluminum compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, or phenyl.

22. The catalyst system of claim 1 , wherein the presence of the chain transfer agent increases the activity of the catalyst component by a factor of at least 2 relative to the activity under the same conditions when chain transfer agent is not present.

23. The catalyst system of claim 1 , wherein two or more chain transfer agents are present.

24. The catalyst system of claim 23 , wherein the chain transfer agent comprises diethyl zinc and tri-n-octyl aluminum.

Assignees

• Exxonmobil Chem Patents Inc

Inventors

• Hagadorn John R

Classifications

• C08F4/65916 Primary

  supported on a carrier, e.g. silica, MgCl2, polymer · CPC title

• C08F2410/01

  Additive used together with the catalyst, excluding compounds containing Al or B · CPC title

• C08F4/64148

  NN(R)N · CPC title

• C08F4/50

  selected from alkaline earth metals, zinc, cadmium, mercury, copper or silver · CPC title

• C08F4/65912 Primary

  in combination with an organoaluminium compound · CPC title