Patents by Inventor Watcharop Chaikittisilp

Watcharop Chaikittisilp 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).

  • Publication number: 20220097033
    Abstract: The present disclosure relates to a process for the preparation of a zeolitic material having a CHA-type framework structure comprising YO2 and X2O3, wherein the process comprises: (1) providing a mixture comprising one or more sources for YO2, one or more sources for X2O3, one or more tetraalkylammonium cation R1R2R3R4N+-containing compounds, and one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent; (2) crystallizing the mixture to obtain a zeolitic material having a CHA-type framework structure; wherein Y is a tetravalent element and X is a trivalent element, wherein R1, R2, R3, R5, R6, and R7 independently from one another stand for alkyl, wherein R4 stands for CnH2nOH with n=1 to 6, and wherein R8 stands for cycloalkyl.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 31, 2022
    Inventors: Hannah SCHREYER, Andrei-Nicolae Parvulescu, Ulrich MUELLER, Karsten SEIDEL, Tatsuya OKUBO, Toru WAKIHARA, Kenta IYOKI, Watcharop CHAIKITTISILP
  • Publication number: 20210031175
    Abstract: A batch process for preparing a zeolitic material having framework type CHA and a framework structure comprising Si, Al, O, and H, comprising (i) providing a seeding material comprising a zeolitic material having framework type CHA and a framework structure comprising Si, Al, O, and H; (ii) preparing a mixture comprising a source of Si, a source of Al, a seeding material provided in (i), a CHA framework structure directing agent comprising a cycloalkylammonium compound, and water, wherein the cycloalkylammonium compound is a compound comprising a cation R1R2R3R4N+ wherein R1, R2, R3 are, independently from one another, an alkyl residue having from 1 to 6 carbon atoms, and R4 is a 5- to 8-membered cycloalkyl residue, wherein in mixture, the molar ratio of water relative to Si comprised in the source of Si and in the seeding material, calculated as SiO2, is in the range of from 5:1 to 15:1, wherein the mixture, the molar ratio of sodium, calculated as Na2O, relative to Si comprised in the source of Si and in th
    Type: Application
    Filed: December 20, 2018
    Publication date: February 4, 2021
    Applicants: BASF SE, The University of Tokyo
    Inventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Kenta IYOKI, Watcharop CHAIKITTISILP, Torn WAKIHARA
  • Publication number: 20160367964
    Abstract: Methods of making supported polyamines, supported polyamines, and the like, are disclosed.
    Type: Application
    Filed: August 29, 2016
    Publication date: December 22, 2016
    Inventors: Watcharop Chaikittisilp, Christopher W. Jones
  • Patent number: 9427726
    Abstract: Methods of making supported polyamines, supported polyamines, and the like, are disclosed.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: August 30, 2016
    Inventors: Watcharop Chaikittisilp, Christopher W. Jones
  • Publication number: 20150165417
    Abstract: Methods of making supported polyamines, supported polyamines, and the like, are disclosed.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Watcharop Chaikittisilp, Christopher W. Jones
  • Patent number: 8282908
    Abstract: A zeolite beta according to the present invention has a SiO2/Al2O3 ratio of 10 to 16 and is aluminum-rich. The zeolite beta has a BET specific surface area measured in the state of a sodium type of 500 to 700 m2/g, a micropore specific surface area of 350 to 500 m2/g, and a micropore volume of 0.15 to 0.25 cm3/g.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: October 9, 2012
    Assignees: Nippon Chemical Industrial Co., Ltd., The University of Tokyo
    Inventors: Keiji Itabashi, Tatsuya Okubo, Yoshihiro Kamimura, Watcharop Chaikittisilp, Shanmugam Palani Elangovan
  • Publication number: 20120190534
    Abstract: A zeolite beta according to the present invention has a SiO2/Al2O3 ratio of 10 to 16 and is aluminum-rich. The zeolite beta has a BET specific surface area measured in the state of a sodium type of 500 to 700 m2/g, a micropore specific surface area of 350 to 500 m2/g, and a micropore volume of 0.15 to 0.25 cm3/g.
    Type: Application
    Filed: July 21, 2010
    Publication date: July 26, 2012
    Applicants: THE UNIVERSITY OF TOKYO, NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Keiji Itabashi, Tatsuya Okubo, Yoshihiro Kamimura, Watcharop Chaikittisilp, Shanmugam Palani Elangovan