(45)  Date of Patent:  Oct. 22, 2019  (IO)  Patent No.:  US 10,450,535 B2  c12)  United States Patent  Ahmadpour  (54)  SHELF-STABLE HYDROGEN PEROXIDE  ANTIMICROBIAL COMPOSITIONS  FOREIGN PATENT DOCUMENTS  OTHER PUBLICATIONS  (65)  Prior Publication Data  (56)  References Cited  U.S. PATENT DOCUMENTS  24 Claims, 2 Drawing Sheets  (57)  ABSTRACT  Baldry, M .. G.C., "The bactericidal, fungicidal and sporicidal prop› erties of hydrogen perioxide and peracetic acid", Journal of Applied  Bacteriology, 34, 417-423, and especially p. 418 (top left column)  and 421 (top right column) thereof, 1982.  (Continued)  Primary Examiner  - Gregory E Webb  (74)  Attorney, Agent, or Firm  - Clark & Brody  A disinfecting solution includes hydrogen peroxide at a  concentration of from about 1.5% w/w to 8% w/w; at least  one readily biodegradable anionic surfactant in a concen› tration of from about 10% w/w to about 25% w/w; at least  one of salicylic acid and salts thereof, in a concentration of  from about 1 % w/w to about 8% w/w; at least one chelating  agent in a concentration of from about 0.005% w/w to about  10% w/w; and at least one low-corrosive non-surfactant  sulfonic acid selected from benzenesulfonic acid, benzene  disulfonic acid, xylene sulfonic acid, toluene sulfonic acid,  cumene sulfonic acid,  sulfosalicylic acid, naphthalene  mono- or di-sulfonic acid, methane sulfonic acid, and ise› thionic acid in a concentration of from about 1 % w/w to  about 15% w/w. The solution is free of acetic acid, furoic  acid, phenylacetic acid, cationic surfactants, amphoteric  surfactants, aromatic alcohols, halogen acids, phenols,  peracid activators, bleaches, and (optionally) benzoic acid.  (Continued)  (Continued)  (Continued)  (Continued)  (Continued)  Bronze Corrosion  0.1!10% ,----,----,-----,-----,-----,---,-----,----------,1,----------,-----,----,  0.lB0%  -+-Equal [w .]  _..,-’-1--’E""qu:::;•I-’+[  "-=’""’=:.’lL...J-----!-----l----1----6--+---1--------1  I  ~:~~~:  f------t---+---+---+-- ... _ ... --•-•  .  ~~•-f’~  ; 0.150% 1-------1-----+---+-, ~.,~1------+---+-----!---l----’/-4\--+---j  ; 0.140% t------t---+---+-,_,  ,,.."...__,__---+---+---+---fij  - ✓ /--+-_,_,_+,  _ _,  : 0.130%  ""  ~  / /  ’\  ";: 0.120%  t-----+---+---+1 1 -’-"\\l---+--+l’-+’"’6- =---1----+---…---J  j 0.110%  t-----+---+--lr--\\---+---llf•--+---+---+--+\l--<  j 0.100% >-----+---+-/  "1+--+i\\_-+---1’,•+---l------t---+---+--\\  _ _,  f  0.090% t---.c-t---+-c::,,t,/f-1-/_-+-,~+--,J/,f-+/_-+---+---t---+-J\..O>---i  ~  0.080%  ..... rz  -------•r--k::-;;;J.-•-t---+---+---t---+----;  0.070% t-------t--+---+---+---+-~-t---f------tf---+---+-----i  0.060%  t--~-~-~-~--+--~-~~t--~-~-~  2,528,378 A  3,969,258 A  10/1950 Mannheimer  7/1976 Carandang et al.  (58)  Field of Classification Search  CPC ................................ CllD 3/48; CllD 3/3942  (52)  U.S. Cl.  CPC ............  CllD 3/3942  (2013.01);  A0lN 37110  (2013.01);  A0lN 37140  (2013.01);  A0lN  41104  (2013.01);  (51)  Int. Cl.  CllD 3/43  CllD 3/39  (2006.01)  (2006.01)  US 2019/0112553 Al  Apr. 18, 2019  (22)  Filed:  Oct. 18, 2017  (21)  Appl. No.:  15/786,632  ( *)  Notice:  Subject to any disclaimer, the term ofthis  patent is extended or adjusted under 35  U.S.C. 154(b) by 118 days.  (73)  Assignee:  VIROX TECHNOLOGIES INC.,  Oakville, Ontario (CA)  (72)  Inventor:  Faraz Ahmadpour,  Mississauga (CA)  (71)  Applicant:  VIROX TECHNOLOGIES INC.,  Oakville, Ontario (CA)  1 102 502  6/1981  CA  CA  1 244 759  11/1988  US010450535B2 