The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2020
Filed:
Nov. 06, 2019
International Business Machines Corporation, Armonk, NY (US);
Agency for Science, Technology and Research, Singapore, SG;
Amos Cahan, Netaim, IL;
Xin Ding, Singapore, SG;
Mareva B. Fevre, Oakland, CA (US);
James L. Hedrick, Pleasanton, CA (US);
Zhen Chang Liang, Singapore, SG;
Nathaniel H. Park, San Jose, CA (US);
Theodore G. van Kessel, Millbrook, NY (US);
Rudy J. Wojtecki, San Jose, CA (US);
Yi Yan Yang, Singapore, SG;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Embodiments are directed to a method of making an antifouling and bactericidal coating with tailorable surface topology. The method includes depositing a layer of branched polyethyleneimine (BPEI) and diamino-functionalized poly(propylene oxide) (PPO) in a mixture of water and organic solvent on a substrate to form a layer of BPEI/PPO. The method includes depositing a layer of glyoxal in a water-containing solution on the layer of BPEI/PPO. The method further includes curing the layer of BPEI/PPO and layer of glyoxal to form a homogenous, glyoxal crosslinked BPEI/PPO coating, where the curing induces local precipitation and alteration of the glyoxal crosslinked BPEI/PPO coating to provide a textured surface.