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US 6,184,171 B2Granted
Supported bidentate and tridentate catalyst compositions and olefin polymerization using same
AssigneeW.R. Grace & Co.-Conn.
InventorKeng-Yu Shih
Life of this patent
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Abstract
A heterogeneous catalyst composition suitable for olefinic polymerization and to methods of forming polyolefinic products using said composition. The catalyst composition comprises an anionic metalloid silane modified inorganic oxide and the cationic remnant of a transition metal bidentate or tridentate compound represented by the formula: T—[—SiR′R″ODM(Q)3]a−n[Cat]b+m wherein each of the symbols above is defined within the subject application.
Claims72
A catalyst composition useful in the polymerization of olefins comprising
- T—[—SiR′R″ODM (Q)3]a−n[Cat]b+m
- wherein
- Cat represents a cationic remnant of a transition metal compound selected from the group consisting of transition metal/bidentate ligand compounds, transition metal/tridentate ligand compounds and mixtures thereof;
- T represents an inorganic oxide;
- Si represents a silicon atom;
- R′ and R″ each independently represents hydrogen, an unsubstituted or a substituted C1-C20 hydrocarbyl group;
- D represents an unsubstituted or a substituted C1-C20 hydrocarbylene group;
- M represents an atom selected from the group consisting of boron, aluminum, gallium, indium, thallium and mixtures thereof;
- each Q independently represents an unsubstituted or a substituted C1-C20 hydrocarbyl group;
- O represents oxygen;
- n and m are each a positive integer such that the product n times a is equal to the product of m times b;
- and
- a and b are integers of 1, 2 or 3.
10 more elements
A composition capable of providing an activated olefin polymerization catalyst formed by contacting
- a) a transition metal/bidentate ligand compound represented by the formula
- wherein
- each A independently represents oxygen, nitrogen, phosphorous or sulfur;
- Z represents a Group IV or Group VIII transition metal of the Periodic Table of Elements;
- each L independently represents an anionic ligand group selected from the group consisting of hydrogen, halo, substituted hydrocarbyl and unsubstituted hydrocarbyl or both L together represent a hydrocarbylene group which, with Z, constitute a cyclic ring structure;
- the line joining each A atom to each other represents a hydrocarbylene radical;
- and
- the lines joining each A atom to Z represent a dative or covalent bond;
- with
- b) a Precursor Ion Pair comprising a metalloid silane modified inorganic oxide salt represented by the formula
- T—[—SiR′R″ODM (Q)3]a−n[Cat]b+m
- wherein
- Ct represents at least one cationic remnant of a BrØnsted acid salt, an oxidizing cation, a carbonium ion or a silylium ion;
- T represents an inorganic oxide;
- Si represents a silicon atom;
- R′ and R″ each independently represents hydrogen, an unsubstituted or a substituted C1-C20 hydrocarbyl;
- D represents a substituted or unsubstituted C1-C20 hydrocarbylene;
- M represents an atom selected from the group consisting of boron, aluminum, gallium, indium thallium and mixtures thereof;
- Q each independently represents an unsubstituted or a substituted C1-C20 hydrocarbyl group;
- O represents oxygen;
- n and m are each a positive integer such that the product n times a is equal to the product of m times b;
- and
- a and b are integers of 1, 2 or 3.
20 more elements
A composition capable of being activated to an olefin polymerization catalyst formed by contacting a mixture of
- a) a transition metal/tridentate ligand compound represented by the formula
- wherein
- A each independently represents an atom of oxygen, phosphorous, nitrogen or sulfur;
- Z represents a Group IV or Group VIII element of the Periodic Table of Elements;
- each L independently represents an anionic ligand group selected from the group consisting of hydrogen, halo, and substituted or unsubstituted hydrocarbyl or both L together represent a hydrocarbylene group which, with Z, constitute a cyclic ring structure;
- the lines joining each A atom to each other represents a hydrocarbylene radical;
- and
- the lines joining each A atom to Z represent a dative or covalent bond;
- with
- b) a Precursor Ion Pair comprising a metalloid silane modified inorganic oxide salt represented by the formula
- T—[—SiR′R″ODM (Q)3]a−n[Cat]b+m
- wherein
- Ct represents a cationic remnant of a BrØnsted acid salt, an oxidizing cation, a carbonium ion or a silylium ion;
- T represents an inorganic oxide;
- Si represents a silicon atom;
- R′ and R″ each independently represents hydrogen, an unsubstituted or a substituted C1-C20 hydrocarbyl;
- D represents an unsubstituted or a substituted C1-C20 hydrocarbylene;
- M represents an atom selected from the group consisting of boron, aluminum, gallium, indium, thallium and mixtures thereof;
- Q each independently represents an unsubstituted or a substituted C1-C20 hydrocarbyl group;
- O represents oxygen;
- n and m are each a positive integer such that the product n times a is equal to the product of m times b;
- and
- a and b are integers of 1, 2 or 3.
20 more elements
Dependencies are inferred from the claim text.