摘要:
A solid-catalyst component for use in the polymerization of α-olefins obtained by reducing a titanium compound represented by the following general formula: Ti(OR¹) n x 4-n wherein R¹ represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a halogen atom and n represents a number satisfying 0 treating the solid product with an ester compound, treating the ester-treated solid product with a mixture of an ether compound and titanium tetrachloride or with a mixture of an ether compound, titanium tetrachloride and an ester compound to obtain a trivalent titanium compound-containing solid catalyst precursor, and treating the solid catalyst precursor with a small quantity of an olefin in the presence of an organoaluminum compound to obtain a solid catalyst component for use in the polymerization of α-olefins.
摘要:
A solid-catalyst component for use in the polymerization of α-olefins obtained by reducing a titanium compound represented by the following general formula:
Ti(OR¹) n x 4-n
wherein R¹ represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a halogen atom and n represents a number satisfying 0 treating the solid product with an ester compound, treating the ester-treated solid product with a mixture of an ether compound and titanium tetrachloride or with a mixture of an ether compound, titanium tetrachloride and an ester compound to obtain a trivalent titanium compound-containing solid catalyst precursor, and treating the solid catalyst precursor with a small quantity of an olefin in the presence of an organoaluminum compound to obtain a solid catalyst component for use in the polymerization of α-olefins.
摘要:
A liquid catalyst component for copolymerization of ethylene with a-olefin comprising a titanium com- pound represented by the following general formula: (R 1 R 2 N) 4-(m+n) TiX m Y n wherein R 1 and R 2 each represents a saturated hy- jrocarbon group having 8 to 30 carbon atoms; X epresents halogen; Y represents an alkoxy group; m epresents a number satisfying 1≦m≦3; n represents a number satisfying 0≦n≦2; and (m + n) satisfies 1≦-(m + n)≦3. Said liquid catalyst component is used in com- oination with an organoaluminum compound as a catalyst system for copolymerization of ethylene with x-olefin.
摘要:
A process for producing a highly stereospecific α-olefin polymer which comprises homopolymerizing or copolymerizing an α-olefin or copolymerizing an α-olefin with ethylene by the use of a catalyst system comprising:
(A) a solid catalyst component containing a trivalent titanium compound obtained by reducing a titanium compound represented by the following general formula: Ti(OR¹) n x 4-n (R¹ represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a halogen atom and n represents a number satisfying 0 (B) an organoaluminum compound, and (C) a silicon compound represented by the following general formula: R²R³Si(OR⁴)₂ (R² represents an alicyclic hydrocarbon group having 5 to 20 carbon atoms, R³ represents an acyclic hydrocarbon group having 2 to 12 carbon atoms, and R⁴ represents a hydrocarbon group having 1 to 20 carbon atoms).
摘要:
A liquid catalyst component for copolymerization of ethylene with a-olefin comprising a titanium com- pound represented by the following general formula: (R 1 R 2 N) 4-(m+n) TiX m Y n wherein R 1 and R 2 each represents a saturated hy- jrocarbon group having 8 to 30 carbon atoms; X epresents halogen; Y represents an alkoxy group; m epresents a number satisfying 1≦m≦3; n represents a number satisfying 0≦n≦2; and (m + n) satisfies 1≦-(m + n)≦3. Said liquid catalyst component is used in com- oination with an organoaluminum compound as a catalyst system for copolymerization of ethylene with x-olefin.
摘要:
A process for producing an α-olefin polymer which comprises polymerizing an α-olefin in the presence of a catalyst system comprising
(A) a solid catalyst component containing at least titanium, magnesium, halogen, and an electron donor and (B) a sterically hindered aluminum amide compound represented by the general formula wherein, R¹ through R⁵ denote each a hydrocarbon group of to 20 carbon atoms, L denotes an alkoxy group of 1 to 20 carbon atoms and/or halogen, ℓ is 2 or 3, x is defined by 0
摘要:
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR¹) n X 4-n (wherein R¹ is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0 (A) said solid catalyst component, and (B) an organoaluminum compound; and a process for producing an olefin polymer, which comprises homopolymerizing an olefin or copolymerizing olefins using said catalyst system.
摘要翻译:一种含有三价钛化合物的固体催化剂组分,其通过还原由通式Ti(OR 1)n X 4-n表示的钛化合物(其中R 1是1至20个碳原子的烃基,X是 卤素原子,n为满足0
摘要:
A process for producing an a-olefin polymer which comprises polymerizing an α-olefin in the presence of a catalyst system comprising
(A) a solid catalyst component obtained by steps of
i) reducing titanium tetrachloride with an organoaluminum compound represented by the general formula R 1 nAlY 3-n , wherein R' represents a C 1 -C 18 hydrocarbon group, Y represents a halogen, and n represents a number satisfying 1 ii) heating the reduction product at a temperature of up to 150°C, iii) treating the thus obtained solid product containing y-titanium trichloride by preliminary polymerization of an α-olefin in the presence thereof, and iv) reacting the resulting solid product with a halogen represented by the general formula X 2 , wherein X represents Cl, Br, or I, and/or an interhalogen compound represented by the general formula X'X"a, wherein X' and X" represent each Cl, Br, or I and a represents 1 or 3, and with an ether compound represented by the general formula R 2 -O-R 3 , wherein R 2 and R' are the same or different and represent each a C 1 -C 10 alkyl group, in a hydrocarbon solvent at a temperature of 50° to 100°C, and