Catalyst system for polymerization of an olefin

Patent metadata

Field	Value
Publication number	US-9944734-B2
Application number	US-201415105028-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Dec 20, 2013
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

The invention relates to a process for preparing a catalyst system suitable for olefin polymerization. The present invention further relates to a catalyst system obtainable by such process. In addition, the invention relates to a polyolefin. The invention also relates to ashaped article. The catalyst system comprises a procatalyst, a co-catalyst and optionally at least one external electron donor.

First claim

The invention claimed is:

1. A process for preparing a catalyst system for olefin polymerization, said catalyst system comprising a procatalyst, a co-catalyst and optionally at least one external electron donor said process comprising:
A) providing said procatalyst obtained via a process comprising:
i) contacting a compound R 4 z MgX 4 2−z with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR 1 ) x X 1 2−x , wherein: R 4 is the same as R 1 being a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group is substituted or unsubstituted, and optionally comprises one or more heteroatoms; X 4 and X 1 are each independently selected from the group of consisting of fluoride (F — ), chloride (Cl — ), bromide (Br — ) or iodide (I — ); z is in a range of larger than 0 and smaller than 2, being 0<z<2;
ii) optionally contacting the solid Mg(OR 1 ) x X 1 2-x obtained in step i) with at least one activating compound selected from the group formed by activating electron donors and metal alkoxide compounds of formula M 1 (OR 2 ) v−w (OR 3 ) w or M 2 (OR 2 ) v−w (R 3 ) w , to obtain a second intermediate product; wherein: M 1 is a metal selected from the group consisting of Ti, Zr, Hf, Al or Si; M 2 is a metal being Si; v is the valency of M 1 or M 2 ; R 2 and R 3 are each a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group is substituted or unsubstituted, and optionally comprises one or more heteroatoms;
iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound and an internal electron donor to obtain said procatalyst;

B) contacting said procatalyst with a co-catalyst and at least one external donor; characterized in that,
the at least one external donor is a di-alkylaminoalkyl-trialkoxysilane according to Formula C
(R 90 ) 2 —N-A-Si—(OR 91 ) 3   Formula C

wherein each R 90 group is independently selected from an alkyl having 1-10 carbon atoms,
wherein each R 91 group is independently selected from an alkyl having 1-10 carbon atoms,
wherein A is a either a direct N—Si bond, or an alkyl spacer selected from an alkyl having 1-10 carbon atoms, and/or
wherein the at least one external donor is an imidosilane according to formula I:
Si(L) n (OR 1 ) 4-n   Formula I

wherein: Si is a silicon atom with valency 4+; O is an oxygen atom with valency 2− and O is bonded to Si via a silicon-oxygen bond; n is 1, 2, 3 or 4; R 1 is selected from the group consisting of linear, branched and cyclic alkyl groups having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl groups having 6 to 20 carbon atoms; and
L is a group represented by Formula II:

wherein: L is bonded to the silicon atom via a nitrogen-silicon bond; L has a single substituent on the nitrogen atom, where this single substituent is an imine carbon atom; and
X and Y are each independently selected from the group consisting of:
a) a hydrogen atom;
b) a group comprising a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements, through which X and Y are each independently bonded to the imine carbon atom of Formula II, wherein the heteroatom is substituted with a group consisting of a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and/or with an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements;
c) a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and
d) an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and/or

wherein the at least one external donor is an alkylimidosilane according to Formula I′:
Si(L) n (OR 1 ) 4−n−m (R 2 ) m   Formula I′

wherein: Si is a silicon atom with valency 4+; O is an oxygen atom with valency 2− and O is bonded to Si via a silicon-oxygen bond; n is 1, 2, 3 or 4; m is 0, 1 or 2; n+m≤4 R 1 is selected from the group consisting of linear, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms; and R 2 is selected from the group consisting of linear, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms; and
L is a group represented by Formula II

wherein: L is bonded to the silicon atom via a nitrogen-silicon bond; L has a single substituent on the nitrogen atom, where this single substituent is an imine carbon atom; and X and Y are each independently selected from the group consisting of:
a) a hydrogen atom;
b) a group comprising a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements, through which X and Y are each independently bonded to the imine carbon atom of Formula II, wherein the heteroatom is substituted with a group consisting of a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and/or with an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements;
c) a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and

d) an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements.

2. The process according to claim 1 , wherein the internal donor is an N-containing internal electron donor selected from the group consisting of benzamides, di-alkylaminoalkyl-trialkoxysilanes, imidosilanes, alkylimidosilanes and aminobenzoates.

3. The process according to claim 2 , wherein the N-containing internal donor is an aminobenzoate according to Formula XI:

wherein:
R 80 , R 81 , R 82 , R 83 , R 84 , R 85 , and R 86 are independently selected from a group consisting of hydrogen, C 1 -C 10 straight and branched alkyl; C 3 -C 10 cycloalkyl; C 6 -C 10 aryl; and C 7 -C 10 alkaryl and aralkyl group; wherein R 81 and R 82 are each a hydrogen atom and R 83 , R 84 , R 85 and R 86 are independently selected from a group consisting of C1-C 10 straight and branched alkyl; C 3 -C 10 cycloalkyl; C 6 -C 10 aryl; and C 7 -C 10 alkaryl and aralkyl group, and
R 87 is selected from a group consisting of hydrogen, methyl, ethyl, propyl, isoprop

Assignees

• Saudi Basic Ind Corp
• Sabic Global Technologies Bv
• Batinas Geurts Aurora Alexandra
• Zuideveld Martin Alexander
• Smeets Bobby Johannes Henricus Hubertus

Inventors

• Batinas-Geurts Aurora Alexandra
• Zuideveld Martin Alexander
• Smeets Bobby Johannes Henricus Hubertus

Classifications

• C08F210/06 Primary

  Propene · CPC title

• C08F10/06 Primary

  Propene · CPC title

• C08F210/16

  Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title

• C08F4/6495

  containing nitrogen · CPC title

• C08F4/6465

  containing silicium · CPC title