US 11,690,380 B2
Antimicrobial guanidinium and thiouronium functionalized polymers
Willy Chin, Singapore (SG); James L. Hedrick, Pleasanton, CA (US); Nor Lizawati Ibrahim, Singapore (SG); Ashlynn L. Z. Lee, Singapore (SG); Robert J. Ono, San Jose, CA (US); Qingxing Xu, Singapore (SG); and Yi Yan Yang, Singapore (SG)
Assigned to Coral Bay II, LLC, New York, NY (US); and Agency For Science, Technology And Research, Singapore (SG)
Filed by International Business Machines Corporation, Armonk, NY (US); and AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, Singapore (SG)
Filed on Nov. 16, 2019, as Appl. No. 16/686,111.
Application 15/645,838 is a division of application No. 14/715,690, filed on May 19, 2015, granted, now 9,854,806, issued on Jan. 2, 2018.
Application 16/686,111 is a continuation of application No. 15/645,838, filed on Jul. 10, 2017, granted, now 10,779,539.
Prior Publication US 2020/0085059 A1, Mar. 19, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 47/44 (2006.01); C08G 64/42 (2006.01); C08G 18/38 (2006.01); C08G 64/02 (2006.01); C08G 18/48 (2006.01); C08G 18/66 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C08G 64/30 (2006.01)
CPC A01N 47/44 (2013.01) [C08G 18/3819 (2013.01); C08G 18/3831 (2013.01); C08G 18/4833 (2013.01); C08G 18/6681 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 64/0241 (2013.01); C08G 64/30 (2013.01); C08G 64/42 (2013.01)] 23 Claims
 
1. An antimicrobial cationic polymer, comprising a cationic subunit of formula (A-1):

OG Complex Work Unit Chemistry
wherein
atoms 1-6 are backbone atoms of the cationic polymer,
m is 1 or 2,
n is 0 or 1, wherein when m is 2, n is 0,
each R′ is an independent monovalent radical selected from the group consisting of hydrogen and alkyl groups comprising 1 to 6 carbons,
R″ is a monovalent radical selected from the group consisting of hydrogen and alkyl groups comprising 1 to 6 carbons, and
each Q″ is an independent group comprising an isothiouronium group.