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:
Feb. 28, 2017
Filed:
May. 06, 2015
International Business Machines Corporation, Armonk, NY (US);
Agency for Science, Technology and Research, Singapore, SG;
Gregory Breyta, San Jose, CA (US);
Julian M. W. Chan, Fremont, CA (US);
Daniel J. Coady, San Jose, CA (US);
Amanda C. Engler, Woodbury, MN (US);
Jeannette M. Garcia, San Jose, CA (US);
Wei Han, San Jose, CA (US);
James L. Hedrick, Pleasanton, CA (US);
Shaoqiong Liu, Singapore, SG;
Alshakim Nelson, San Carlos, CA (US);
Robert J. Ono, San Jose, CA (US);
Jye Yng Teo, Singapore, SG;
Yi Yan Yang, Singapore, SG;
Mu San Zhang, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Agency For Science, Technology And Research, Singapore, SG;
Abstract
A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide). The cationic polymers include polyamides, polycarbonates, polypolyureas and polyguanidiniums having a cationic repeat unit comprising the quaternary ammonium nitrogen as a backbone nitrogen. The cationic polymers can be active against Gram-negative, Gram-positive microbes, and/or fungi.