Patents by Inventor Richard C-M Yeh

Richard C-M Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and process for the production of functionalized olefinic-based polymer
    Patent number: 10947375
    Abstract: 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.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: March 16, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yu Feng Wang, Richard D. Hembree, Michael F. McDonald, Jr., Joseph A. Maier, Richard C. M. Yeh, Leming Gu, Timothy D. Shaffer, Pamela J. Wright
  • System and Process for the Production of Functionalized Olefinic-Based Polymer
    Publication number: 20200255643
    Abstract: 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.
    Type: Application
    Filed: December 9, 2016
    Publication date: August 13, 2020
    Inventors: Yu Feng Wang, Richard D. Hembree, Michael F. McDonald, JR., Joseph A. Maier, Richard C.M. Yeh, Leming Gu, Timothy D. Shaffer, Pamela J. Wright
  • Method for elastomer finishing
    Patent number: 8524859
    Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yu Feng Wang, Richard C-M Yeh
  • Method for Elastomer Finishing
    Publication number: 20120071619
    Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.
    Type: Application
    Filed: March 23, 2011
    Publication date: March 22, 2012
    Inventors: Yu Feng WANG, Richard C-M Yeh