Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer
AssigneeIdemitsu Petrochemical Co., Ltd.
InventorsTsuyoshi Ota, Takanori Sadashima, Yasunori Kadoi, Toshio Isozaki, Kiyokazu Katayama
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Abstract
Provided are a catalyst for olefin polymer production, which contains an organosilicon compound having a specific structure and with which olefin polymers produced have increased stereospecificity and increased melt fluidity; and a method for producing such olefin polymers.
Claims14
An external electron donor for producing olefin polymer of the general formula (I):
- wherein R1 to R3 each represent a hydrogen atom or a hydrcarbon group, and they may be the same or different, and may be bonded to the adjacent group to form a ring;
- R4 and R5 each represent a hydrocarbon group, and they may be the same or different, and may be bonded to the adjacent group to form a ring;
- R6 and R7 each represent a hydrocarbon group having from 1 to 10 carbon atoms, and they may be the same or different;
- m is an integer of at least 2;
- and n is an integer of at least 1.
An external electron donor for producing olefin polymers of the general formula (I):
- wherein R1 to R3 each represent a hydrogen atom or a methyl group or an ethyl group, and they may be the same or different;
- R4 and R5 each represent a methyl group or an ethyl group, and they may be the same or different;
- R6 and R7 each represent a methyl group or an ethyl group, and they may be the same or different;
- m is 2;
- and n is 1.
An external electron donor for producing olefin polymers, which consists of one or more organosilicon compound of the general formula (I):
- wherein R1 to R3 each represent a hydrogen atom, a methyl group or an ethyl group, and they may be the same or different, R4 and R5 each represent a methyl group or an ethyl group, and they may be the same or different;
- R6 and R7 each represent a methyl group or an ethyl group, and they may be the same or different;
- m is 2;
- and n is 1.
A catalyst for olefin polymer production, which comprises (A) a solid catalyst component comprising titanium, magnesium and an electron donor compound, (B) an organoaluminum compound, and (C) the organosilicon compound of the general formula (I):
- wherein R1 to R3 each represent a hydrogen atom or a hydrocarbon group, and they may be the same or different, and may be bonded to the adjacent group to form a ring;
- R4 and R5 each represent a hydrocarbon group, and they may be the same or different, and may be bonded to the adjacent group to form a ring;
- R6 and R7 each represent a linear hydrocarbon group having from 1 to 10 carbon atoms, and they may be the same or different;
- m is an integer of at least 2;
- and n is an integer of at least 1.
A catalyst for olefin polymer production, which comprises (A) a solid catalyst component comprising titanium, magnesium and an electron donor compound, (B) an organoaluminum compound, and (C) the organosilicon compound of the general formula (I):
- wherein R1 to R3 each represent a hydrogen atom, a methyl group or an ethyl group, and they may be the same or different, R4 and R5 each represent a methyl group or an ethyl group, and they may be the same or different;
- R6 and R7 each represent a methyl group or an ethyl group, and they may be the same or different;
- m is 2;
- and n is 1.
Dependencies are inferred from the claim text.