Patents by Inventor Sangiu Qin

Sangiu Qin 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).

  • FOAMS AND ARTICLES MADE FROM FOAMS CONTAINING HCFO OR HFO BLOWING AGENTS
    Publication number: 20170158834
    Abstract: Polyurethane foams having a polymeric foam structure including a plurality of closed cells therein; and an HFO or HCFO blowing agent, including HCFO-1233zd or HFO-1234ze. In certain aspects, foam premixes, and the resulting foam structures, that include HFCO-1233zd as blowing agent used alone, or in certain aspects, in blend with a co-blowing agent such as methyl formate are disclosed.
    Type: Application
    Filed: February 22, 2017
    Publication date: June 8, 2017
    Inventors: David J. Williams, Rajiv Ratna Singh, James M. Bowman, YiuKeung Ling, Sangiu Qin, Bin Liu, Rongwei Pan