US Patent No. 10,219,418

BIPOLYMER-BASED ELECTROMAGNETIC INTERFERENCE SHIELDING MATERIALS


Patent No. 10,219,418
Issue Date February 26, 2019
Title Bipolymer-based Electromagnetic Interference Shielding Materials
Inventorship De Yu Zang, Irvine, CA (US)
Michael M. Salour, Carlsbad, CA (US)
James G. Grote, Yellow Spring, OH (US)
Assignee SOFTWARE DEFINED TECHNOLOGIES, INC., Carlsbad, CA (US)

Claim of US Patent No. 10,219,418

1. A method of making an EMI shielding material, the method comprising:dissolving DNA in a first amount of de-ionized water for a first period of time to form a DNA solution;
dissolving CTMA in a second amount de-ionized water for a second period of time to form a CTMA solution;
making a DNA-CTMA complex by adding the DNA solution to the CTMA solution, thereby causing a DNA-CTMA precipitate to form;
making a butanol based DNA-CTMA solution by dissolving the DNA-CTMA precipitate in butanol; and making EMI shielding material by mixing nano-powders with the butanol based DNA-CTMA solution.