Manufacturing method of polyolefin

Claim 1

A method for preparing an olefin polymer, which comprises polymerizing an olefin at a temperature of from 20° to 110° C. in a continuous or batch system, in the presence of a catalyst system comprising a combination of ingredients (A) and (B), wherein ingredient (A) is a solid catalyst obtained by allowing a homogeneous solution of (i) at least one of a combination of metallic magnesium and a hydroxylated organic compound, or an oxygen-containing organic compound of magnesium, and (ii) at least one oxygen-containing organic compound of titanium, to react in succession with: (iii) at least one first organoaluminum compound having the formula: R 3 1 Al or R n 1 AlY 3-n wherein R 1 is a C 1-20 alkyl group, Y is a C 1-20 alkoxyl, aryloxy or cycloalkoxyl group or a halogen, and 1≦n<3, wherein, when the first organoaluminum compound has the formula R n 1 AlY 3-n , the atomic ratio of gram atoms of aluminum in said compound multiplied by n, to the gram atoms of titanium in the titanium compounds falls within a range of

Claim 2

A method for preparing an olefin polymer, which comprises polymerizing an olefin at a temperature of from 20° to 110° C. in a continuous or batch system, in the presence of a catalyst system comprising a combination of ingredients (A) and (B), wherein ingredient (A) is a solid catalyst obtained by allowing a homogeneous solution of (i) at least one of a combination of metallic magnesium and a hydroxylated organic compound, or an oxygen-containing organic compound of magnesium, and (ii) at least one oxygen-containing organic compound of titanium, to react in succession with: (iii) at least one first organoaluminum compound having the formula: R 3 1 Al or R n 1 AlY 3-n wherein R 1 is a C 1-20 alkyl group, Y is a C 1-20 alkoxyl, aryloxy or cycloalkoxyl group or a halogen, and 1≦n<3, wherein, when the first organoaluminum compound has the formula R n 1 AlY 3-n , the atomic ratio of gram atoms of aluminum in said compound multiplied by n, to the gram atoms of titanium in the titanium compounds falls within a range of

Claim 14

A method for preparing an olefin polymer, which comprises polymerizing an olefin at a temperature of from 20° to 110° C. in a continuous or batch system to obtain at least one relatively low molecular weight polyolefin material and at least one relatively high molecular weight polyolefin material in separate polymerization stages, in the presence of a catalyst system comprising a combination of ingredients (A) and (B), wherein ingredient (A) is a solid catalyst obtained by allowing a homogeneous solution of (i) at least one of a combination of metallic magnesium and a hydroxylated organic compound, or an oxygen-containing organic compound of magnesium, and (ii) at least one oxygen-containing organic compound of titanium, to react in succession with: (iii) at least one first organoaluminum compound having the formula: R.sub.3.sup.1 Al or R.sub.n.sup.1 AlY.sub.3-n wherein R 1 is a C 1-20 alkyl group, Y is a C 1-20 alkoxyl, aryloxy or cycloalkoxyl group or a halogen, and 1≦n<3, wherein, when the first organoaluminum compound has the formula R n 1 AlY 3-n , the atomic ratio of gram atoms of aluminum in said compound multiplied by n, to the gram atoms of titanium in the titanium compounds falls within a range of 0.1×n/(n-0.5)≦(n×Al)/Ti≦100×n/(n-0.5) and wherein, when the first organoaluminum compound has the formula R 3 1 Al and the atomic ratio of gram atoms of aluminum in said organoaluminum compound multiplied by 3, to the gram atoms of titanium in the titanium compounds falls within a range of 0.12≦(3×Al)/Ti≦120; then (iv) at least one polysiloxane or silane compound, wherein said polysiloxane has the formula: ##STR3## wherein R 3 and R 4 are the same or different and are C 1-12 alkyl, C 1-12 aryl, hydrogen, halogen, C 1-12 alkoxyl, C 1-12 allyloxyl, or C 1-12 fatty acid, with the proviso that R 3 and R 4 cannot both be hydrogen or halogen, and wherein p ranges from about 2 to 10,000; and wherein said silane has the formula: H.sub.q Si.sub.r R.sub.s.sup.5 X.sub.t where R s 5 are groups capable of bonding to silicon which are C 1-12 alkyl, C 1-12 aryl, C 1-12 alkoxyl, C 1-12 allyloxyl, or C 1-12 fatty acid; X is halogen; q, s, and t are integers not smaller than 0; and r is a natural number related to q, s and t as q+s+t=2r+2, wherein the amount of said polysiloxane or silane compound is selected such that the atomic ratio of gram atoms of magnesium in the magnesium compounds to the gram atoms of silicon in the silicon compounds lies within a range of 1/20≦Mg/Si≦100; and then (v) at least one second aluminum compound having the formula: R.sub.z.sup.6 AlX.sub.3-z wherein R 6 is a C 1-20 hydrocarbon, X is a halogen atom and 0≦Z<3, wherein the amount of said second aluminum compound is such that the atomic ratio of gram atoms of aluminum in the first organoaluminum compound to the gram atoms of aluminum in the second aluminum compound falls within a range of 1/20≦Al (first organoaluminum compound)/Al (second aluminum compound) ≦10; and ingredient (B) is an organometallic compound containing a metal from group Ia, IIa, IIb, IIIb or IVb of the Periodic Table.

Claim 15

A method for preparing an olefin polymer, which comprises polymerizing an olefin at a temperature of from 20° to 110° C. in a continuous or batch system to obtain at least one relatively low molecular weight polyolefin material and at least one relatively high molecular weight polyolefin material in separate polymerization stages, in the presence of a catalyst system comprising a combination of ingredients (A) and (B), wherein ingredient (A) is a solid catalyst obtained by allowing a homogeneous solution of (i) at least one of a combination of metallic magnesium and a hydroxylated organic compound, or an oxygen-containing organic compound of magnesium, and (ii) at least one oxygen-containing organic compound of titanium, to react in succession with: (iii) at least one first organoaluminum compound having the formula: R.sub.3.sup.1 Al or R.sub.n.sup.1 AlY.sub.3-n wherein R 1 is a C 1-20 alkyl group, Y is a C 1-20 alkoxyl, aryloxy or cycloalkoxyl group or a halogen, and 1≦n<3, wherein, when the first organoaluminum compound has the formula R n 1 AlY 3-n , the atomic ratio of gram atoms of aluminum in said compound multiplied by n, to the gram atoms of titanium in the titanium compounds falls within a range of 0.1×n/(n-0.5)≦(n×Al)/Ti≦100×n/(n-0.5) and wherein, when the first organoaluminum compound has the formula R 3 1 Al and the atomic ratio of gram atoms of aluminum in said organoaluminum compound multiplied by 3, to the gram atoms of titanium in the titanium compounds falls within a range of 0.12≦(3×Al)/Ti≦120; then (iv) at least one polysiloxane or silane compound, wherein said polysiloxane has the formula: ##STR3## wherein R 3 and R 4 are the same or different and are C 1-12 alkyl, C 1-12 aryl, hydrogen, halogen, C 1-12 alkoxyl, C 1-12 allyloxyl, or C 1-12 fatty acid, with the proviso that R 3 and R 4 cannot both be hydrogen or halogen, and wherein p ranges from about 2 to 10,000; and wherein said silane has the formula: H.sub.q Si.sub.r R.sub.s.sup.5 X.sub.t where R s 5 are groups capable of bonding to silicon which are C 1-12 alkyl, C 1-12 aryl, C 1-12 alkoxyl, C 1-12 allyloxyl, or C 1-12 fatty acid; X is halogen; q, s, and t are integers not smaller than 0; and r is a natural number related to q, s and t as q+s+t=2r+2, wherein the amount of said polysiloxane or silane compound is selected such that the atomic ratio of gram atoms of magnesium in the magnesium compounds to the gram atoms of silicon in the silicon compounds lies within a range of 1/20≦Mg/Si≦100; and then (v) at least one second aluminum compound having the formula: R.sub.z.sup.6 AlX.sub.3-z wherein R 6 is a C 1-20 hydrocarbon, X is a halogen atom and 0≦Z<3, wherein the amount of said second aluminum compound is such that the atomic ratio of gram atoms of aluminum in the first organoaluminum compound to the gram atoms of aluminum in the second aluminum compound falls within a range of 1/20≦Al (first organoaluminum compound)/Al (second aluminum compound) ≦10; and ingredient (B) is an organometallic compound containing a metal from group Ia, IIa, IIb, IIIb or IVb of the Periodic Table.