US Patent Issued to Zhejiang University on May 12 for "Method for preparing hollow covalent organic framework materials" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,144, issued on May 12, was assigned to Zhejiang University (Zhejiang, China).

"Method for preparing hollow covalent organic framework materials" was invented by Pingwei Liu (Zhejiang, China), Wen-Jun Wang (Zhejiang, China) and Song Wang (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for preparing a hollow covalent organic framework (COF) material and hollow COF material prepared by said method. Said method is characterized in including a monomer displacement step in the method, thereby obtaining the hollow COF material with a controllable particle size, wall thickness and/or specific surface ...