Patents by Inventor Shenglan Cheng

Shenglan Cheng 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).

  • Patent number: 9574044
    Abstract: An addition compound, prepared by reacting a) one or more polyisocyanates having an average functionality of 2-6; b) one or more compounds comprising at least one chain selected from the group consisting of polyester, polyether, polyacrylate, polyurethane, polyolefin and a combination thereof; and at least one isocyanate reactive group, wherein the at least one isocyanate reactive group is an amino group; and c) one or more compounds selected from the group consisting of N-(3-aminopropyl) imidazole (API), benzoguanamine (BGA) and N-(2-aminoethyl) piperazine (AEP). The addition compound is suitable as dispersant or anti-sedimentation agent, especially for pigments, fillers and matting agents.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: February 21, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Girish Tilak, Bing Guo, Shenglan Cheng
  • Publication number: 20160083502
    Abstract: An addition compound, prepared by reacting a) one or more polyisocyanates having an average functionality of 2-6; b) one or more compounds comprising at least one chain selected from the group consisting of polyester, polyether, polyacrylate, polyurethane, polyolefin and a combination thereof; and at least one isocyanate reactive group, wherein the at least one isocyanate reactive group is an amino group; and c) one or more compounds selected from the group consisting of N-(3-aminopropyl)imidazole (API), benzoguanamine (BGA) and N-(2-aminoethyl)piperazine (AEP). The addition compound is suitable as dispersant or anti-sedimentation agent, especially for pigments, fillers and matting agents.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 24, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Girish Tilak, Bing Guo, Shenglan Cheng