Patents by Inventor Chaoran Deng

Chaoran Deng 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).

  • Ladder-like silicone polymers
    Patent number: 7022799
    Abstract: There is disclosed a three stage method for the preparation of ladder-like silicone polymers. The first stage comprises hydrolysis and polymerization of alkyltrialkoxylsilane-like monomers to give relatively low molecular weight prepolymers. The second stage comprises dehydrated condensation polymerization of the prepolymers to give high molecular weight polymers. The third stage comprises partial blocking of a proportion of the pendant Si—OH (silanol) groups with a pre-determined sub-stoichiometric amount of a blocking agent. Also disclosed are the prepolymers, polymers and partially blocked polymers so produced.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: April 4, 2006
    Inventors: Jie Dai, Chaoran Deng
  • Ladder-like silicone polymers
    Publication number: 20030212228
    Abstract: There is disclosed a three stage method for the preparation of ladder-like silicone polymers. The first stage comprises hydrolysis and polymerization of alkyltrialkoxylsilane-like monomers to give relatively low molecular weight prepolymers. The second stage comprises dehydrated condensation polymerization of the prepolymers to give high molecular weight polymers. The third stage comprises partial blocking of a proportion of the pendant Si—OH (silanol) groups with a pre-determined sub-stoichiometric amount of a blocking agent. Also disclosed are the prepolymers, polymers and partially blocked polymers so produced.
    Type: Application
    Filed: October 9, 2002
    Publication date: November 13, 2003
    Applicant: DSO National Laboratories
    Inventors: Jie Dai, Chaoran Deng