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50results about How to "Low polymerization activity" patented technology
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Magnesium compound load type non-metallocene catalyst and preparation thereof
The invention relates to a magnesium compound supported non-metallocene catalyst, which is obtained by directly contacting a non-metallocene ligand and a magnesium compound containing transition metal through an in-situ supporting method. The preparation method for the magnesium compound supported non-metallocene catalyst has simple and feasible process, and the supporting capacity and the polymerization activity of the catalyst have wide adjustable range. When the magnesium compound supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization / copolymerization of olefins, high polymerization activities of the olefins can be obtained only by using small amount of the catalyst promoter.
Owner:SINOPEC YANGZI PETROCHEM
Supported non-metallocene catalyst as well as preparation method and application thereof
ActiveCN102039184AComposition is easy to controlThe content is easy to controlOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationChemical treatmentAlkene
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, and the non-metallocene compound in the catalyst and the chemical treatment agent have synergy beneficial to giving play to activity. The invention also relatesto 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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, its preparation method and uses
ActiveCN102039188AThe load is easy to controlSimple processOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationChemical treatmentCompound (substance)
The invention relates to a supported non-metallocene catalyst and its preparation method. The supported non-metallocene catalyst is characterized by simple preparation method, flexible polymerization activity etc. In addition, non-metallocene complexes in the catalyst cooperate with the chemical disposal agent to enhance the activity. The invention also relates to the application of the supportednon-metallocene catalyst in alkene homopolymerization / copolymerization. Less amount of co-catalyst is required in use compared with the prior art.
Owner:CHINA PETROLEUM & CHEM CORP +1
Load type non-metallocene catalyst, preparation method and application thereof
ActiveCN102039191AComposition is easy to controlThe content is easy to controlOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationChemical treatmentOrganic chemistry
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, and synergistic reaction which is beneficial to activity development is formed between non-metallocene complexes and chemical conditioning agents inthe catalyst. The invention also relates to the application of the load type non-metallocene catalyst in olefin homopolymerization / copolymerization. Compared with the prior art, the application has the characteristic of less cocatalyst amount.
Owner:CHINA PETROLEUM & CHEM CORP +1
Loaded non-metallocene catalyst and preparation method and application thereof
ActiveCN102059153AThe load is easy to controlAdjust molecular weightOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationMetalloceneChemistry
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Loaded non-metallocene catalyst and preparation method and application thereof
ActiveCN102059150AThe load is easy to controlAdjust viscosity average molecular weightOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationAlkeneMetallocene
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Nucleic acid sequencing methods and systems
ActiveUS20090087850A1Low polymerization activityEnhanced exonuclease activityBioreactor/fermenter combinationsBiological substance pretreatmentsNucleobase bindingExonuclease I
Sequencing methods that use an exonuclease that comprises template dependent nucleobase binding activity are provided. Related compositions and sequencing systems are also provided.
Owner:PACIFIC BIOSCIENCES
Load type non-metallocene catalyst and preparation thereof
The invention relates to a supported non-metallocene catalyst. The supported non-metallocene catalyst is obtained by a non-metallocene ligand and a transition metal compound which directly react on a carrier through an in-situ supporting method. The preparation method for the supported non-metallocene catalyst has simple and feasible process, and the supporting capacity and the polymerization activity of the catalyst have wide adjustable range. When the supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization / copolymerization of olefins, high polymerization activities of the olefins can be obtained only by using small amount of the catalyst promoter.
Owner:SINOPEC YANGZI PETROCHEM
Load type non-metallocene catalyst and preparation thereof
The invention relates to a supported non-metallocene catalyst. The supported non-metallocene catalyst is obtained by a non-metallocene ligand and a transition metal compound which directly react on a carrier through an in-situ supporting method. The preparation method for the supported non-metallocene catalyst has simple and feasible process, and has wide adjustable range of the supporting capacity and the polymerization activity of the catalyst. When the supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization / copolymerization of olefins, high polymerization activities of the olefins can be obtained only by the less using amount of the catalyst promoter.
Owner:SINOPEC YANGZI PETROCHEM
Loaded non-metallocene catalyst and preparation method and application thereof
ActiveCN102059152AThe load is easy to controlAdjust molecular weightOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationAlkeneMetallocene
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Loaded non-metallocene catalyst and preparation method and application thereof
ActiveCN102059148AThe load is easy to controlAdjust viscosity average molecular weightOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationMetalloceneChemistry
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Load type non-metallocene catalyst and preparation thereof
The invention relates to a supported non-metallocene catalyst. The supported non-metallocene catalyst is obtained by a non-metallocene ligand and a transition metal compound which directly react on a carrier through an in-situ supporting method. The preparation method for the supported non-metallocene catalyst has simple and feasible process, and the supporting capacity and the polymerization activity of the catalyst have wide adjustable range. When the supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization / copolymerization of olefins, the high comonomer effect is showed, and high polymerization activities of the olefins can be obtained only by using small amount of the catalyst promoter at the same time. Moreover, the obtained polymers have good particle morphology and high bulk density.
Owner:SINOPEC YANGZI PETROCHEM
Supported non-metallocene catalyst, preparation method and application
ActiveCN102964476AEasy to prepareSuitable for industrial productionChemical treatmentPolymer science
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a mixed slurry of a magnesium compound, a porous carrier and a solvent, performing in-situ loading on a non-metallocene ligand and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
ActiveCN102964489AThe load is easy to controlAdjust viscosity average molecular weightChemical treatmentAlcohol
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a mixed slurry formed by a magnesium compound, alcohol and a solvent, loading a non-metallocene complex and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Early-strength polycarboxylate water reducer and preparation method thereof
The invention relates to an early-strength polycarboxylate water reducer and a preparation method thereof. The preparation method comprises the following steps: maleic anhydride and organic amine are subjected to an acylation reaction to prepare a maleic monoamide monomer; the monomer is copolymerized with polyoxyethylene ether macromonomer, unsaturated monocarboxylic acid and derivatives thereof under the action of an initiator and a chain transfer agent. The polycarboxylate water reducer can be used for effectively improving the early strength of concrete, and has 12h and 24h colloidal mortar compression strength respectively increased by over 18 percent and 12 percent in comparison with those of a conventional commercial early-strength polycarboxylate water reducer.
Owner:中建西部建设新材料科技有限公司 +2
Supported non-metallocene catalyst and preparation method and application thereof
ActiveCN102399320AProcess adjustableHigh polymerization activityPolymer scienceOlefin polymerization
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of processing the supported non-metallocene catalyst by a chemical treatment agent and precipitating a magnesium compound solution formed by a magnesium compound, alcohol and a solvent, loading a non-metallocene complex and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of precipitating a mixed slurry formed by a magnesium compound, alcohol and a solvent, treating with an IVB group chemical treating agent; then loading a non-metallocene complex; the preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Load-type non-metallocene catalyst, preparation method thereof, and application thereof
ActiveCN102399319ALarge room for process adjustmentHigh polymerization activityPolymer scienceAlkene
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of employing a magnesium compound, a porous carrier and a solvent to form a mixed slurry, adding a non-metallocene complex for a contact reaction and then adding a precipitating agent for completely precipitating, filtering, washing and drying, and then treating by a chemical treatment agent. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
ActiveCN102964487AEasy to prepareSuitable for industrial productionChemical treatmentPolymer science
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of reacting a magnesium compound and an IVB group chemical treating agent under the existence of alcohol, and reacting with a non-metallocene complex, and directly drying finally. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, narrow molecular weight distribution, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of employing a magnesium compound, a porous carrier and a solvent to form a mixed slurry, adding a non-metallocene complex for a contact reaction and directly drying, and then treating by a chemical treatment agent. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of adding a porous carrier in a magnesium compound solution to form a mixed slurry, loading a non-metallocene complex and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, narrow molecular weight distribution, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of precipitating a mixed slurry of a magnesium compound and a solvent, loading a non-metallocene complex and directly drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of using a porous carrier to add in a magnesium compound solution to form a mixed slurry, loading on a non-metallocene complex and precipitating by a precipitating agent, filtering, washing and drying. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, narrow molecular weight distribution, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for solvent bonding polyolefins
InactiveUS6632318B1Reduced responseReduce catalytic activityLayered productsAdhesive processes with surface pretreatmentPolymer sciencePolyolefin
The present invention provides a method for assembling a medical device using solvent bonding techniques. The method includes the steps of: (1) providing a first article of a polymer composition having (a) a first component of a homopolymer or copolymer obtained using monomers of cyclic olefin or a bridged polycyclic hydrocarbon, the first component being present in an amount from about 30% to about 100% by weight of the composition and (b) a second component from 0-70% by weight of the composition; (2) providing a second article of a material selected from the group of low crystallinity polymers; (3) applying a solvent to one of the first article or the second article to define an interface area; and (4) bonding the first article to the second article along the interface area.< / PTEXT>
Owner:BAXTER INT INC
Supported non-metallocene catalyst, preparation method and application
The invention relates to a supported non-metallocene catalyst and a preparation method. The supported non-metallocene catalyst is prepared by the steps of employing a magnesium compound, a porous carrier and a solvent to form a mixed slurry, adding a non-metallocene complex for a contact reaction and directly drying, and then treating by a chemical treatment agent. The preparation method is simple and feasible, and the load capacity of the non-metallocene ligand is adjustable. The invention also relates to the application of the supported non-metallocene catalyst in olefin homopolymerisation / copolymerization. Compared with the prior art, the supported non-metallocene catalyst has the characteristics of less usage of a cocatalyst for catalyzing polymerization of alkene, high polymerization activity, substantial copolymerization effect, high bulk density of polymer, and high and adjustable viscosity average molecular weight of the prepared ultrahigh molecular weight polyethylene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Supported non-metallocene catalyst, its preparation method and uses
ActiveCN102039188BThe load is easy to controlSimple processOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationChemical treatmentCompound (substance)
The invention relates to a supported non-metallocene catalyst and its preparation method. The supported non-metallocene catalyst is characterized by simple preparation method, flexible polymerization activity etc. In addition, non-metallocene complexes in the catalyst cooperate with the chemical disposal agent to enhance the activity. The invention also relates to the application of the supportednon-metallocene catalyst in alkene homopolymerization / copolymerization. Less amount of co-catalyst is required in use compared with the prior art.
Owner:CHINA PETROLEUM & CHEM CORP +1
Load-type non-metallocene catalyst, preparation method thereof, and application thereof
ActiveCN102399319BLarge room for process adjustmentHigh polymerization activityPolymer scienceAlkene
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
Loaded non-metallocene catalyst and preparation method and application thereof
ActiveCN102059152BThe load is easy to controlAdjust molecular weightOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationAlkeneMetallocene
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.
Owner:CHINA PETROLEUM & CHEM CORP +1
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