Patents by Inventor Philip David Mackrell

Philip David Mackrell 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).

  • Gas/liquid mixing equipment, gas/liquid mixing method, polymer and method for its production
    Patent number: 8118476
    Abstract: A gas/liquid mixing equipment of the present invention comprises a stirring vessel 1, a stirring shaft 10 inserted horizontally in the stirring vessel 1 and a helical ribbon impeller 20 attached to the stirring shaft 10, whereby a high gas absorption performance can be secured even with low shearing. Further, a polymer can be produced with high productivity. A gas/liquid mixing method of the present invention is a method which comprises employing the above-mentioned gas/liquid mixing equipment, and a method for producing a polymer of the present invention is a method which comprises polymerizing feed monomers containing gaseous monomers in aqueous solvents, wherein the gaseous monomers and the aqueous solvents are mixed by such a gas/liquid mixing method. A polymer of the present invention is produced by the above-mentioned method for producing a polymer.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: February 21, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuyuki Kasahara, Shin Tatematsu, Shigeki Kobayashi, Yasuhiko Matsuoka, Hiroki Nagai, Terence Edwin Attwood, Steven McDonald, Philip David Mackrell, Shigeki Hiraoka