112results about How to "High copolymerization activity" patented technology

The invention relates to a load type non-metallocene catalyst and a preparation method thereof. The load type non-metallocene catalyst has the characteristics of simple preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the load type non-metallocene catalyst in olefin homopolymerization / copolymerization. Compared withthe prior art, the application has the characteristic of less cocatalyst amount.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation / copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The catalyst has the characteristics of simple and practical preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to an application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. Compared with the prior art, the catalyst is characterized in that the dosage of the promoter is less in the application.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst is characterized by a simple and practical preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to an application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. The application is characterized in that compared with the prior art, the dosage of the catalyst is lower.

The invention relates to a supported non-metallocene catalyst and its preparation method. The preparation method of the supported non-metallocene catalyst is characterized by simple and convenient preparation method, flexible and adjustable polymerization activity etc. The invention also relates to use of the supported non-metallocene catalyst in homopolymerization / copolymerization of alkenes, and less co-catalysts are required compared with the prior art.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation / copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics of simple and feasible preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to application of the supported non-metallocene catalyst in homopolymerization / copolymerization of olefins.Compared with the prior art, the consumption of a cocatalyst is low in the application.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation / copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention discloses a loading metallocene catalyst composition which is obtained through adopting an alkyl aluminoxane / magnesium chloride / silica gel carrier as a carrier and loading a metallocene catalyst precursor, and a preparation method thereof. The catalyst system consisting of the catalyst composition catalyzes ethylene to polymerize or copolymerize and has high polymerization activity. Compared with a common loading metallocene catalyst with an alkyl aluminoxane / silica gel carrier, the activity can be doubled or more. The carrier is simple to prepare; the prepared loading catalyst granule has good shape and adjustable size; and the obtained polythene powdery material has high stacking density.

The invention provides a diimine ligand compound as shown in a formula (I) which is defined in the specification and a preparation method thereof. In the formula I, R1 to R10 are same or different and are independently selected from a group consisting of hydrogen, saturated or unsaturated alkyl groups, oxyl groups and halogen. The invention also relates to the preparation method for the diimine ligand compound, a complex containinging the diimine ligand compound, and a preparation method and application of the complex. As a catalyst composition obtained in the invention is applied to ethylene homopolymerization, polymerization activity is high under a high-temperature polymerization condition (50 to 100 DEG C); and an obtained polymer has high molecular weight and narrow molecular weight distribution.

The invention provides a diimine ligand compound as shown in a formula (I) which is defined in the specification and a preparation method thereof. In the formula I, R1 to R10 are same or different and are independently selected from a group consisting of hydrogen, saturated or unsaturated alkyl groups, oxyl groups and halogen. The invention also relates to the preparation method for the diimine ligand compound, a complex containinging the diimine ligand compound, and a preparation method and application of the complex. As a catalyst composition obtained in the invention is applied to ethylene homopolymerization, polymerization activity is as high as 3.84 * 10<6> g / mol(Ni) / h under a high-temperature polymerization condition (50 to 100 DEG C); and an obtained polymer has high molecular weight and narrow molecular weight distribution.

The present invention relates to a cocatalyst composition and application thereof, in particular to a cocatalyst composition. The cocatalyst is characterized by comprising a reaction product of alkylaluminium and water, and alkyl aluminum, wherein based on A1, the molar ratio of the reaction product of the alkylaluminium and the water to the alkyl aluminum is 0.5: 1 to smaller than 4: 1. The present invention further relates to a catalyst system containing the cocatalyst composition, and application of the cocatalyst composition in non-metallocene complexe catalyzed chain alkene-cycloalkene copolymerization. Compared with the alkyl aluminum, the cost of the cocatalyst composition disclosed by the present invention is lower.

The invention provides an olefin polymerization catalyst. The invention is characterized in that the catalyst comprises a complex whose chemical structural formula is shown as Formula (I) as the main catalyst, wherein the values of the R1-R6 can be identical or different; and the R1-R6 are respectively and independently selected from alkyl or halogen, wherein the X stands for halogen. The invention further provides a preparation method of the olefin polymerization catalyst. And the invention also provides an olefin polymerization method, wherein the olefin polymerization method comprises the step of carrying on olefin polymerization reaction under the existence of the olefin polymerization catalyst provided by the invention.

The invention relates to a catalyst for olefin polymerization. The catalyst comprises a complex whose chemical structural formula is shown as Formula (I) as the main catalyst. In the Formula (I), the X stands for halogen; the values of the R1-R8 can be identical or different; the R1-R8 are respectively and independently selected from hydrogen atom, halogen, C1-C20 alkyls, heterocyclic compound group or organic groups containing oxygen atom, nitrogen atom, boron atom, sulfur atom, phosphorus atom, silicon atom, germanium atom or tin atom; and loops are optionally formed by the R1 and the R2 as well as the R5 and the R6 mutually. And the invention also provides an olefin polymerization method, wherein the olefin polymerization method comprises the step of carrying on olefin polymerization reaction under the existence of the olefin polymerization catalyst provided by the invention.

The present invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has characteristics of simple and feasible preparation process, adjustable performance, controllable non-metallocene complex content, significant copolymerization effect, and the like. The present invention further relates to an application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. Compared to the prior art, the application of the present invention has the following characteristics that: the activity for catalysis of olefin polymerization is high; the produced polymer has high bulk density and controllable molecular weight distribution.

The invention relates to a load-type non-metallocene catalyst and a preparation method thereof. The load-type non-metallocene catalyst is characterized by simple and feasible preparation technology, controllable contents of non-metallocene ligand and non-metallocene complex produced through in-situ synthesis by using the non-metallocene ligand and a chemical processing agent, substantial copolymerization effect, and the like. The invention also relates to an application of the load-type non-metallocene catalyst in alkene homopolymerization / copolymerization. Compared to prior arts, the application is characterized by simple preparation process, high alkene polymerization catalytic activity, high polymer bulk density, and narrow and controllable molecular weight distribution.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics that the preparation process is simple, the content of a non-metallocene component is controllable, and the copolymerization effect is obvious. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. And compared with the prior art, the application has the characteristics that activity is high in olefin polymerization catalysis, and a polymer has high bulk density and controllable molecular weight distribution.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of dissolving a non-metallocene ligand in a magnesium compound solution, performing an in-situ reaction with a chemical treatment agent, and dipping a solution of a non-metallocene complex. The preparation method is simple and feasible, the ingredients content of the non-metallocene is adjustable, and the copolymerization effect is substantial. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the polymerization activity by catalysis of alkene is high, the bulk density of the polymer is high, and the molecular weight distribution is narrow and controllable.

The invention provides a diimine ligand compound with a structural formula as shown in the specification. In the structural formula I, R1 to R10 are same or different and are independently selected from a group consisting of hydrogen, saturated or unsaturated alkyl groups, oxyl groups and halogen. The invention also relates to a preparation method for the ligand, a nickel complex formed by the ligand and a preparation method and application of the nickel complex. When the nickel complex is used as a main catalyst, higher polymerization activity is obtained under a high-temperature polymerization condition, and an obtained polymer has high molecular weight.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of performing in-situ loading on a non-metallocene complex and dipping a solution. The preparation method is simple and feasible, the ingredients capacity of the non-metallocene is adjustable, and the copolymerization effect is substantial. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the polymerization activity by catalysis of alkene is high, the bulk density of the polymer is high, and the molecular weight distribution is controllable.

The invention relates to a supported non-metallocene catalyst, a preparation method and an application. The supported non-metallocene catalyst is prepared by the steps of introducing a first non-metallocene complex in a magnesium compound solution, processing by a chemical treatment agent and then reacting with a second non-metallocene complex. The method of the invention has the characteristics of simple and feasible process, controllable content of non-metallocene compounds and substantial copolymerization effect and the like. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the polymerization activity by catalysis of alkene is high, the bulk density of the polymer is high, and the molecular weight distribution is controllable.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics that the preparation process has a large regulation margin, the content of a non-metallocene complex is controllable, and the copolymerization effect is obvious. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. And compared with the prior art, the application has the characteristics that activity is high in olefin polymerization catalysis, a polymer has high bulk density and the molecular weight distribution of the polymer can be controlled and adjusted to be narrow.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics that the preparation process has a large regulation margin, the content of a non-metallocene complex is controllable, and the copolymerization effect is obvious. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. And compared with the prior art, the application has the characteristics that activity is high in olefin polymerization catalysis, a polymer has high bulk density and the molecular weight distribution of the polymer can be controlled and adjusted to be narrow.

The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of introducing a non-metallocene complex in a magnesium compound solution, treating by a chemical treatment agent and performing an in-situ reaction with a non-metallocene ligand. The preparation method is simple and feasible, the ingredients content of the non-metallocene is adjustable, and the copolymerization effect is substantial. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the polymerization activity by catalysis of alkene is high, the bulk density of the polymer is high, and the molecular weight distribution is narrow and controllable.

The invention relates to a supported non-metallocene catalyst and its preparation method. The preparation method of the supported non-metallocene catalyst is an in-situ preparation method, is simple, is easy for operation, realizes control on non-metallocene content and has an obvious copolymerization effect. The invention also relates to a use of the supported non-metallocene catalyst in alkene homopolymerization / copolymerization. Compared with the prior art, the use of supported non-metallocene catalyst has the characteristics of high alkene catalysis activity, high polymer bulk density andcontrollable molecular weight distribution.

The invention discloses a supported metallocene catalyst used for vinyl polymerization and a preparation method thereof. The catalyst comprises a metallocene compound, chlorinated alkyl silicon, halogenated alkyl magnesium, alkyl aluminoxane and a silica gel carrier reaction product; the preparation method comprises the following steps: 1) preparation of a chlorinated alkyl silicon modified silica gel carrier, 2) preparation of a halogenated alkyl magnesium modified silica gel carrier, 3)preparation of an alkyl aluminoxane modified silica gel carrier, and 4)preparation of the silica gel supported metallocene catalyst; and the obtained metallocene catalyst has high polymerization activity for catalyzing vinyl polymerization or copolymerization. The preparation method of the silica gel carrier is simple, and the obtained supported catalyst particles have good particle morphology and have adjustable size.

The invention discloses a supported single metallocene catalyst used for vinyl polymerization and a preparation method thereof. The catalyst comprises a single metallocene compound, a chlorinated alkyl silicon modifier, alkyl aluminoxane and a magnesium chloride carrier reaction product; the preparation method comprises the following steps: 1) preparation of a chlorinated alkyl silicon modified magnesium chloride carrier, 2) preparation of an alkyl aluminoxane modified magnesium chloride carrier, and 3)preparation of a magnesium chloride supported single metallocene catalyst; and the obtained single metallocene catalyst has high polymerization activity for catalyzing vinyl polymerization or copolymerization. The preparation method of the magnesium chloride carrier is simple, and the obtained supported catalyst particles have good morphology with adjustable size. The obtained supported single metallocene catalyst is capable of catalyzing copolymerization of ethylene and alpha-alkene, the copolymerization activity is high, the obtained resin powder has good particle morphology, bulk density is high, and the single metallocene catalyst is suitable for the polymerization technology of a slurry method and a gas phase method.

The invention provides a ligand compound with a structural formula I as shown in the specification. In the structural formula I, R1 to R10 are same or different and are independently selected from a group consisting of hydrogen, saturated or unsaturated alkyl groups, oxyl groups and halogen. The invention also relates to the preparation method for the ligand compound, a complex containinging the ligand compound, and a preparation method and application of the complex. When the complex is used as a main catalyst, higher polymerization activity is obtained under a high-temperature polymerization condition, and an obtained polymer has high molecular weight.

The invention relates to a load-type non-metallocene catalyst and a preparation method thereof. The load-type non-metallocene catalyst is characterized by a preparation technology with large adjustment room, controllable non-metallocene content, substantial copolymerization effect, and the like. The invention also relates to an application of the load-type non-metallocene catalyst in alkene homopolymerization / copolymerization. Compared to prior arts, the application is characterized by high alkene polymerization catalytic activity, high polymer bulk density, and narrow and adjustable molecular weight distribution.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics that the preparation process is simple, the content of a non-metallocene complex is controllable, and the copolymerization effect is obvious. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerization / copolymerization. And compared with the prior art, the application has the characteristics that activity is high in olefin polymerization catalysis, and a polymer has high bulk density and controllable molecular weight distribution.