Exxonmobil Chemical Patents Inc.

Richard Dwight Hembree

Michael F Mcdonald

Robert Norman Webb

Michael F McDonald, Jr

Michael Francis McDonald

David Yen-Lung Chung

Joseph A Maier

Timothy D Shaffer

Yu Feng Wang

Scott T Milner

Pamela Jean Wright

Scott Thomas Milner

Yuan-Ju Chen

John Patrick Soisson

Richard Cheng-Ming Yeh

Ralph Howard Schatz

Leming Gu

Michael K McDonald

Richard C M Yeh

Yu F Wang

Claude André Gautier

Claude A Gautier

Michael Francis Mcdonald

Michael F Mc Donald

A system for producing a functionalized olefinic-based polymer, the system comprising a polymerization zone for producing an olefinic-based polymer comprising a mixing section, a deliquifying section, and a quenching section, wherein at least one section of the polymerization zone has a defined cross-sectional area that continually decreases from a first end to a second end of said section; a devolatilization zone comprising a kneader or extruder, wherein said devolatilization zone is downstream of said polymerization zone and in fluid communication with said polymerization zone; and a functionalization zone downstream of said devolatilization zone and in fluid communication with said devolatilization zone.

System and process for the production of functionalized olefinic-based polymer

A reactor comprising a first portion having a generally cylindrical housing, an inlet at one end of said first portion housing, the opposed end of said first portion housing being the outlet of said first portion, where said first portion includes a rotatable shaft positioned axially within said housing and including at least two shearing paddles extending radially from said rotatable shaft and a second portion having a generally frustoconical housing having a first end larger than a second end, said first end constituting an inlet to said second portion and coextensive with said opposed end of said first portion housing, and an outlet at said second end, where said second portion includes a rotatable shaft positioned axially within said housing and including at least one generally helical flight extending radially from said rotatable shaft.

Reactor for multi-phase composition

A polymer synthesis system has a polymerization reactor and a deliquifying-quench extruder downstream of and in fluid communication with the polymerization reactor. The polymerization reactor has an inlet and an outlet with a rotatable shaft positioned axially within the reactor. The deliquifying-quench extruder has an inlet and an outlet, with a shaft assembly positioned axially within the extruder. The shaft assembly includes multiple helical flight configurations and multiple processing zones defined by the multiple flight configurations. The processing zones include an extraction-compaction zone, a sealing zone downstream of the extraction-compaction zone, a vent-cooling zone downstream of the sealing zone, a quenching zone downstream of the vent-cooling zone, and a conveying zone downstream of the quenching zone.

Reactor system for multi-phase polymerization process

The invention discloses improved processes to halogenate polymers. In particular, the invention discloses to improved processes to halogenate polymers made from C-10isoolefins.

Halogenation processes

Provided for herein is a process to produce an essentially homogeneous single liquid phase hydrocarbon-rubber cement from a polymer slurry comprising a hydrocarbon-rubber, a diluent, and unreacted monomer(s), the process comprising:

Process to produce a hydrocarbon rubber cement utilizing a hydrofluorocarbon diluent

The invention relates to methods for separating mixture components such as reactor effluent components. In particular, the invention relates to the use of an extractive agent such as a hydrocarbon in an extractive distillation process to separate monomers such as a C-Cisoolefins such as isobutylene from mixtures such as reactor effluents including one or more hydrofluorocarbon(s) (HFC).

Processes utilizing extractive distillation

The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of isobutylene-based polymers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a Cor greater initiator having a tertiary halide.

Process for polymerizing cationically polymerizable monomers

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Zachary, LA, United States of America

Richard Dwight Hembree