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US 11,589,582 B2Granted
Stable S-(+)-abscisic acid nonaqueous liquid solutions
AssigneeStoller Enterprises, Inc.
InventorsRitesh Bharat Sheth, Maria Dollar, Francisco Javier Maldonado Gonzalez
Life of this patent
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Abstract
Stable S-(+)-abscisic acid (S-ABA) non-aqueous liquid solutions are generally achieved without the use of an effective amount of an antioxidant and/or an ultraviolet absorber to S-(+)-abscisic acid. In a preferred embodiment, the stable S-(+)-abscisic acid (S-ABA) nonaqueous liquid solutions includes at least one organic solvent, such as at least one polyethylene glycol, at least one glycol, and/or at least one lactamide and/or at least one pentanoate.
Claims18
A non-aqueous liquid solution comprising:
- a) about 10 to about 40 wt.% of at least one form of S-(+) abscisic acid (S-ABA);
- b) about 20 to 90 wt.% of an organic solvent, which is N,N-dimethyl lactamide;
- c) optionally, 0 to about 50 wt.% of at least one non-aqueous co-solvent;
- d) optionally, 0 to about 20 wt.% of at least one surfactant;
- e) optionally, additional plant growth regulator(s);
- f) optionally, additional plant nutrients;
- g) less than 0.1 wt.% antioxidant;
- h) less than 0.1 wt.% UV absorber;
- and
- i) 5 wt.% water;
- wherein the average amount of S-ABA does not decline to less than 95% of the average content measured prior to storage stability performed at 54±2° C. for 14 days.
8 more elements
A non-aqueous liquid solution comprising:
- a) about 10 to about 40 wt.% of at least one form of S-(+) abscisic acid (S-ABA);
- b) about 60 to 90 wt.% of an organic solvent, which is N,N-dimethyl lactamide;
- c) 8-30 wt.% of at least one non-aqueous co-solvent;
- d) optionally, 0 to about 20 wt.% of at least one surfactant;
- e) 25 wt.% plant growth regulator(s);
- f) 25 wt.% additional plant nutrients;
- g) less than 0.1 wt.% antioxidant;
- h) less than 0.1 wt.% UV absorber;
- and
- i) 2 wt.% water;
- wherein said non-aqueous liquid solution has a stability performance of ±5% for S-ABA in said non-aqueous liquid solution when subjected to an elevated temperature of 54° C. for 14 days.
8 more elements
Dependencies are inferred from the claim text.