| Patent Number |
Title Of Patent |
Date Issued |
| 6627714 |
Method for producing an olefin type copolymer having a cyclic structure |
September 30, 2003 |
| An olefinic copolymer having a cyclic structure is prepared by copolymerizing a) ethylene (M1) and b) dicyclopentadiene or tricyclopentadiene (M2), and, optionally c) a cyclic olefin (M3), in the presence of a catalyst which contains a metallocene compound (A) having formula [1]: H.s |
| 6455647 |
Solid catalyst for olefin polymerization and process for producing olefin polymer with the same |
September 24, 2002 |
| The present invention relates to a solid catalyst (D) for olefin polymerization comprising a magnesium-containing solid component (A) carrying thereon an organoaluminum-oxy compound (B) and a metallocene compound (C), the magnesium-containing compound (A) being obtained by heat treat |
| 6368995 |
Solid catalysts for the polymerization of olefins and process for the production of olefin polym |
April 9, 2002 |
| A solid catalyst for olefin polymerization, obtained by reacting a least one of a hydropolysiloxane compound, having the formula R.sup.1.sub.a H.sub.b SiO.sub.(4-a-b)/2, a silane compound of formula R.sup.2.sub.c Si(OH).sub.4-c, and condensates of the silane, with a compound of formula |
| 5422400 |
Method for producing an ethylenic polymer composition |
June 6, 1995 |
| The invention relates to a method for producing an ethylenic polymer composition, suitable for molding, at high catalytic efficiency. The ethylenic polymer composition produced has as a high melt tension when melted, and a high melt modulus (die swell ratio). The process comprises a |
| 4742132 |
Process for the polymerization or copolymerization of ethylene |
May 3, 1988 |
| A process for polymerizing or copolymerizing ethylene, characterized in that ethylene or a mixture of ethylene with other .alpha.-olefin is polymerized in the presence of a catalyst comprising:[I] a solid catalyst component (B) obtained by reacting the following three components:(a) a re |
| 4657996 |
Process for producing polyethylene |
April 14, 1987 |
| A process for producing polyethylene comprises polymerizing ethylene or copolymerizing ethylene with other .alpha.-olefin in the presence of a catalyst system obtained by bringing the following components (I) to (III) in contact with one another:(I) a reaction product (B) obtained by rea |
| 4643986 |
Process for preparing a catalyst for polymerization or copolymerization of ethylene |
February 17, 1987 |
| A process for preparing a catalyst for polymerization or copolymerization of ethylene, which comprises reacting a silicone compound (I) of the formula R.sup.4.sub.a H.sub.b SiO.sub.(4-a-b)/2 or R.sup.5.sub.n Si(OH).sub.4-n or a condensate thereof and an organomagnesium compound (II) |
| 4464518 |
Process for the polymerization or copolymerization of ethylene |
August 7, 1984 |
| Polymerization of ethylene or copolymerization of ethylene with other .alpha.-olefin is carried out in the presence of a specific catalyst system. The catalyst system is obtained by preparing a reaction product (A) of an organic aluminum compound (I) represented by the formula AlR.su |
