US 11,938,361 B2
Antifreeze formulations and sprinkler systems comprising improved antifreezes
Hayden Erik Hernandez, Cranston, RI (US); Jeremy Tyler Cogswell, Johnston, RI (US); Sean E. Cutting, West Warwick, RI (US); and Jacob Gelinas, Providence, RI (US)
Assigned to Tyco Fire Products LP, Cranston, RI (US)
Filed by Tyco Fire Products LP, Lansdale, PA (US)
Filed on Dec. 23, 2022, as Appl. No. 18/088,391.
Application 18/088,391 is a continuation of application No. 17/394,582, filed on Aug. 5, 2021, granted, now 11,559,716.
Application 17/394,582 is a continuation of application No. 15/993,004, filed on May 30, 2018, granted, now 11,110,311, issued on Sep. 7, 2021.
Application 15/993,004 is a continuation in part of application No. 15/842,282, filed on Dec. 14, 2017, granted, now 10,046,191.
Claims priority of provisional application 62/598,805, filed on Dec. 14, 2017.
Claims priority of provisional application 62/598,851, filed on Dec. 14, 2017.
Claims priority of provisional application 62/513,043, filed on May 31, 2017.
Claims priority of provisional application 62/513,078, filed on May 31, 2017.
Claims priority of provisional application 62/513,000, filed on May 31, 2017.
Prior Publication US 2023/0132729 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A62D 1/00 (2006.01); A62C 3/00 (2006.01); A62C 35/60 (2006.01); A62C 35/64 (2006.01); C09K 5/20 (2006.01)
CPC A62D 1/0042 (2013.01) [A62C 3/004 (2013.01); A62C 35/60 (2013.01); A62D 1/0035 (2013.01); C09K 5/20 (2013.01); A62C 35/64 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An antifreeze comprising:
water;
at least about 41 vol. % glycerol; and
a total of no more than 1.5 wt. % of an organic acid salt that is potassium salt of formic acid (methanoic acid), acetic acid (ethanoic acid), propionic acid, butyric acid (butanoic acid), valeric acid (pentanoic acid), caproic acid (hexanoic acid), lactic acid (2-hydroxypropanoic acid), malic acid (2-hydroxybutanedioic acid), citric acid (2-hydroxypropane-1,2,3-tricarboxylic acid), benzoic acid (benzenecarboxylic acid), oxalic acid (ethanedioic acid), malonic acid (propanedioic acid), succinic acid (butanedioic acid), glutaric acid (pentanedioic acid), adipic acid (hexanedioic acid), pimelic acid (heptanedioic acid), suberic acid (octanedioic acid), azelaic acid (nonanedioic acid), sebacic acid (decanedioic acid), or a mixture of any two or more thereof.