Abstract: In some embodiments, a process includes introducing a catalyst solution, via a first line, into a reactor. The catalyst solution includes a catalyst and a first non- aromatic diluent. The process includes introducing an activator solution, via a second line, into the reactor. The activator solution includes an activator and a second non-aromatic diluent. The second non-aromatic diluent is the same as or different than the first non- aromatic diluent. The process includes operating the reactor under process conditions and obtaining an effluent from the reactor. The effluent includes a polyolefin. The first line and the second line are coupled with the reactor.

Abstract: The present disclosure provides methods and systems for introducing an activator to a polymerization reactor. The methods may include introducing liquid activator to a mixing vessel or an inline mixer and mixing aliphatic hydrocarbon solvent to form an activator solution which is introduced to a polymerization reactor. The systems may include a storage vessel, a mixing vessel or inline mixer configured to mix a liquid activator with a hydrocarbon solvent, and a polymerization reactor. The present disclosure also provides a process for producing a polyolefin. The process may include introducing liquid activator to an inline mixer and mixing an aliphatic hydrocarbon solvent with the liquid activator to form an activator solution. The process may include introducing the activator solution, a catalyst, and an olefin feed to a polymerization reactor.

Abstract: The present disclosure provides methods and systems for introducing an activator to a polymerization reactor. The methods may include introducing liquid activator to a mixing vessel or an inline mixer and mixing aliphatic hydrocarbon solvent to form an activator solution which is introduced to a polymerization reactor. The systems may include a storage vessel, a mixing vessel or inline mixer configured to mix a liquid activator with a hydrocarbon solvent, and a polymerization reactor. The present disclosure also provides a process for producing a polyolefin. The process may include introducing liquid activator to an inline mixer and mixing an aliphatic hydrocarbon solvent with the liquid activator to form an activator solution. The process may include introducing the activator solution, a catalyst, and an olefin feed to a polymerization reactor.

Abstract: High Mooney viscosity elastomers having low volatiles content, and processes for producing such elastomers, are provided herein. In particular aspects, the elastomers are metallocene-catalyzed elastomers, such as mEPDM elastomers. Processes for producing such elastomers include devolatilization of an elastomer stream comprising such elastomers, using a kneader. The kneader is counterintuitively operated such that the internal agitating paddles rotate at relatively low speeds. It is believed these low speeds help maintain the elastomer stream as a toffee-like composition, preventing the elastomer stream within the kneader from becoming a crumbly composition, which is difficult to devolatilize.

Abstract: This disclosure relates to a process for polymerization, and in particular to minimizing undesired polymerization reactions downstream of a polymerization reaction zone, for instance by use of a quenching agent that enables fast reaction rates with active polymerization catalyst in the polymerization effluent, so as to quench the catalyst quickly, thereby preventing uncontrolled polymerization reactions. A preferred quenching agent is methanol. Also provided are means for treating polymer recycle streams containing oxygenates, which may result from the use of such quench agents, particularly in polymerization processes including polyene (e.g., diene) monomers.

Abstract: This disclosure relates to a process for polymerization, and in particular to minimizing undesired polymerization reactions downstream of a polymerization reaction zone, for instance by use of a quenching agent that enables fast reaction rates with active polymerization catalyst in the polymerization effluent, so as to quench the catalyst quickly, thereby preventing uncontrolled polymerization reactions. A preferred quenching agent is methanol. Also provided are means for treating polymer recycle streams containing oxygenates, which may result from the use of such quench agents, particularly in polymerization processes including polyene (e.g., diene) monomers.

Abstract: This invention relates to a process for producing a low molecular weight polyolefin adhesive component, the process including the steps of (a) cooling a polymer solution to a temperature less than or equal to about its cloud point to form a cooled polymer solution; (2) filtering the cooled polymer solution using a filter, wherein the polymer solution includes a low molecular weight polyolefin adhesive component and a solvent; and (b) recovering the solvent and the polyolefin.

Abstract: The present invention relates to a polymerization process of producing ethylene-alpha-olefin polymer. The polymerization process comprises supplying at a feed temperature a feed containing ethylene, at least one alpha-olefin and optionally, a diene in a solvent, the solvent is supplied at a solvent feed rate; supplying at a catalyst feed rate a catalyst to a reactor, and contacting the feed with the catalyst to produce a reaction mixture containing the polymer. The present invention also relates to processes for improving the energy utilization of polymerization processes, wherein the process comprises decreasing the feed temperature, decreasing the solvent feed rate, and decreasing the catalyst feed rate.

Abstract: The present invention relates to a polymerization process of producing ethylene-alpha-olefin polymer. The polymerization process comprises supplying at a feed temperature a feed containing ethylene, at least one alpha-olefin and optionally, a diene in a solvent, the solvent is supplied at a solvent feed rate; supplying at a catalyst feed rate a catalyst to a reactor, and contacting the feed with the catalyst to produce a reaction mixture containing the polymer. The present invention also relates to processes for improving the energy utilization of polymerization processes, wherein the process comprises decreasing the feed temperature, decreasing the solvent feed rate, and decreasing the catalyst feed rate.