Concentrated gibberellin solution formulations

Patent metadata

Field	Value
Publication number	US-10375950-B2
Application number	US-201615371409-A
Country	US
Kind code	B2
Filing date	Dec 7, 2016
Priority date	Dec 7, 2015
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

The present invention relates to concentrated gibberellin formulations and methods of their use.

First claim

The invention claimed is:

1. A concentrated agricultural liquid solution formulation consisting of:
from about 5 to about 15% wt/wt of at least one gibberellin selected from the group consisting of gibberellic acid (GA 3 ), gibberellin 4 (GA 4 ), gibberellin 7 (GA 7 ) and gibberellin 4/7 (GA 4/7 );
from about 75 to about 90% wt/wt of polyethylene glycol 200;
from about 0.1 to about 4% wt/wt of a binder selected from the group consisting of alkylated vinyl pyrrolidone polymers, a copolymer of acetic acid ethenyl ester and 1-ethenyl-2-pyrrolidinone, a copolymer of polyvinylpyrrolidone and 1-eicodecene and mixtures thereof;
from about 0.1 to about 3% wt/wt of a non-ionic surfactant; and
from about 0.1 to about 4% wt/wt of a color additive selected from the group consisting of FD&C Blue #1, FD&C Blue #2, FD&C Green #3, FD&C Red #3, FD&C Red #40, FD&C Yellow #5, FD&C Yellow #6, Citrus Red #2 and mixtures thereof.

2. The formulation of claim 1 wherein the gibberellin is GA 3 .

3. The formulation of claim 1 wherein the at least one gibberellin is at a concentration from about 9.5 to about 11.5% wt/wt.

4. The formulation of claim 1 wherein the dye is selected from the group consisting of FD&C Blue #1 and FD&C Red #40.

5. The formulation of claim 1 wherein the binder is a copolymer of acetic acid ethenyl ester and 1-ethenyl-2-pyrrolidinone.

6. The formulation of claim 1 comprising from about 1 to about 3% wt/wt of the binder.

7. The formulation of claim 6 comprising from about 1.5 to about 2.5% wt/wt of the binder.

8. The formulation of claim 1 wherein the non-ionic surfactant is selected from the group consisting of polyoxyethylene (20) sorbitan monolaurate and polyoxyethylene (20) sorbitan monooleate.

9. The formulation of claim 8 wherein the non-ionic surfactant is polyoxyethylene (20) sorbitan monolaurate.

10. The formulation of claim 1 comprising from about 0.5 to about 1.5% wt/wt of the non-ionic surfactant.

11. A method for regulating plant growth comprising treating a plant or soil with an effective amount of the formulation of claim 1 .

12. The method of claim 11 wherein the effective amount is from about 0.1 to about 50 grams of gibberellin per acre.

13. The method of claim 11 wherein the plant is rice.

14. A concentrated agricultural liquid solution formulation consisting of:
from about 9.5 to about 11.5% wt/wt of gibberellic acid (GA 3 );
from about 75 to about 90% wt/wt of polyethylene glycol 200;
from about 0.1 to about 4% wt/wt of a copolymer of acetic acid ethenyl ester polymer and 1-ethenyl-2-pyrrolidinone;
from about 0.1 to about 3% wt/wt of polyoxyethylene (20) sorbitan monolaurate; and
from about 0.1 to about 4% wt/wt of a color additive selected from the group consisting of FD&C Blue #1, FD&C Blue #2, FD&C Green #3, FD&C Red #3, FD&C Red #40, FD&C Yellow #5, FD&C Yellow #6, Citrus Red #2 and mixtures thereof.

15. The concentrated agricultural liquid solution formulation of claim 14 wherein:
gibberellic acid (GA 3 ) is at a concentration of about 10.6% wt/wt;
polyethylene glycol 200 is at a concentration of about 84.5% wt/wt;
the copolymer of acetic acid ethenyl ester polymer and 1-ethenyl-2-pyrrolidinone is at a concentration of about 2.0% wt/wt; and
polyoxyethylene (20) sorbitan monolaurate is at a concentration of about 1.0% wt/wt.

16. A concentrated agricultural liquid solution formulation consisting of:
from about 5 to about 15% wt/wt of at least one gibberellin selected from the group consisting of gibberellic acid (GA 3 ), gibberellin 4 (GA 4 ), gibberellin 7 (GA 7 ) and gibberellin 4/7 (GA 4/7 );
from about 75 to about 90% wt/wt of polyethylene glycol 200;
from about 0.1 to about 4% wt/wt of a binder selected from the group consisting of alkylated vinyl pyrrolidone polymers, a copolymer of acetic acid ethenyl ester and 1-ethenyl-2-pyrrolidinone, a copolymer of polyvinylpyrrolidone and 1-eicodecene and mixtures thereof, and
from about 0.1 to about 3% wt/wt of a non-ionic surfactant.

17. The concentrated agricultural liquid solution formulation of claim 16 wherein:
the at least one gibberellin is gibberellic acid (GA 3 ) at a concentration from about 9.5% to about 11.5% wt/wt;
the binder is a copolymer of acetic acid ethenyl ester polymer and 1-ethenyl-2-pyrrolidinone; and
the non-ionic surfactant is polyoxyethylene (20) sorbitan monolaurate.

18. The concentrated agricultural liquid solution formulation of claim 17 wherein:
gibberellic acid (GA 3 ) is at a concentration of about 10.6% wt/wt;
polyethylene glycol 200 is at a concentration of about 84.5% wt/wt;
the copolymer of acetic acid ethenyl ester polymer and 1-ethenyl-2-pyrrolidinone is at a concentration of about 2.0% wt/wt; and
polyoxyethylene (20) sorbitan monolaurate is at a concentration of about 1.0% wt/wt.

Assignees

• Valent Biosciences Corp
• Valent Biosciences Llc

Inventors

• Devisetty Bala N
• Venburg Gregory D

Classifications

• A01N25/02 Primary

  containing liquids as carriers, diluents or solvents · CPC title

• A01N45/00

  Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring (halogenated hydrocarbons A01N29/08; condensed with heterocyclic rings A01N43/00) · CPC title

• A01N43/12

  condensed with a carbocyclic ring · CPC title