	US 12,082,582 B2
	Synergistic preservative compositions, process for preparing the same and method of use thereof
Meiyan Guo, Shanghai (CN); Karen Winkowski, Springfield, NJ (US); Najeeb H. Hakimi, Edison, NJ (US); Raman Premachandran, White Plains, NY (US); and Xin Qu, Shanghai (CN)
Assigned to ISP INVESTMENTS LLC, Wilmington, DE (US)
Appl. No. 17/297,628
Filed by ISP INVESTMENTS LLC, Wilmington, DE (US)
PCT Filed Dec. 2, 2019, PCT No. PCT/US2019/063979 § 371(c)(1), (2) Date May 27, 2021, PCT Pub. No. WO2020/113211, PCT Pub. Date Jun. 4, 2020.
Claims priority of provisional application 62/773,939, filed on Nov. 30, 2018.
Prior Publication US 2022/0030862 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 43/28 (2006.01); A01N 31/02 (2006.01); A01N 31/14 (2006.01); A01N 37/28 (2006.01)

CPC A01N 43/28 (2013.01) [A01N 31/02 (2013.01); A01N 31/14 (2013.01); A01N 37/28 (2013.01)]

15 Claims

1. A synergistic preservative composition for providing broad spectrum antimicrobial activity comprising:

i. about 0.1 wt. % to about 99.9 wt. % of propylene carbonate;

ii. about 0.1 wt. % to about 99.9 wt. % of one or more organic compounds selected from the group consisting of caprylhydroxamic acid and isopropyl methylphenol (IPMP); and

iii. about 0.1 wt. % to 99.0 wt. % of phenoxy ethanol, a preservative compound, and wherein, the composition has a Synergy Index (SI) value of the total composition from about 0.05 to about 1.0.